Booklet on Paving

VGELE Booklet on Paving

Contents1 DesignofaRoadPaver 4

1.1 ComponentsofaRoadPaver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2 Machinery/Applications 8

2.1 DifferencesinConstructionMachinerysMethods ofProfilingSurfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102.2 TheFloatingScreed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112.3 TheoreticalOutlineoftheFloatingScreedPrinciple withoutControlSystem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122.4 ControloftheFloatingScreed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132.5 TrackedPaversandWheeledPavers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142.5.1 ExamplesofPaverApplications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162.6 PaversandPerformances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182.6.1 TrackedPavers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182.6.2 SpecialEquipment............................................................... 222.6.3 WheeledPavers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3 MaterialFeedandMaterialHandling 26

3.1 FeedofPaverwithMix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283.2 ConveyanceofMix(LongitudinalDirection) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303.3 SpreadingofMix(TransverseDirection) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313.4 DistanceBetweenTractorUnitandScreed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

4 Screed 34

4.1 FunctionFulfilledbytheScreed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364.2 ExtendingScreeds. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 384.2.1 CompactingSystemsInstalledinExtendingScreeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404.2.2 ExtendingScreedsandBolt-onExtensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424.2.3 Set-UpoftheExtendingScreed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 444.3 Fixed-WidthScreeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 464.3.1 OptionsforFixed-WidthScreedsandSpecialConcreteScreed . . . . . . . . . . . . . . . . . . . . . . . . . . 474.3.2 CompactingSystemsInstalledinFixed-WidthScreeds. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 484.3.3 Fixed-WidthScreedsandBolt-onExtensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504.3.4 BuildingUpaFixed-WidthScreedwithBolt-onExtensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 544.4 ScreedsataGlance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 564.5 Set-UpofTamper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 584.6 Set-UpofTamperShield. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 594.7 Set-UpofPressureBar(s).......................................................... 604.8 BevelIrons...................................................................... 614.9 FunctionCheckofScreedHeating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

5 ParametersInfluencingthePavingProcess 64

5.1 PavingMaterial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 665.2 PavingParameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 675.3 PaverSet-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 675.4 RelationshipBetweenTamperSpeedandPaveSpeed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 705.5 RecommendedSettingsfortheCompactingSystems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 715.6 FunctionsoftheHydraulicRamsforRaising/LoweringtheScreed . . . . . . . . . . . . . . . . . . . . . . . . . 72

6 RecommendationsforPaving/PointstoNote 74

6.1 BasicPrinciples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 766.1.1 SettingtheLayerThickness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 786.1.2 WeatherConditionswhenPavingAsphalt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 806.1.3 RequirementsMadeontheBaseandSub-Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 816.2 AugersandLimitingPlatesfortheAugerTunnel onanExtendingScreed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 846.3 HeadofMixinFrontoftheScreed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 866.4 DefinitionoftheRoute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 876.5 CorrectUseofNIVELTRONIC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 886.5.1 AutomatedGradeandSlopeControl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 886.5.2 DevelopmentfromNIVELTRONICtoNIVELTRONICPlus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 896.5.3 QuickReferenceGuideforNIVELTRONICandNIVELTRONIC/V-TRONIC. . . . . . . . . . . . . . . . . . . . 906.5.4 QuickReferenceGuideforNIVELTRONICPlus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 936.5.5 ComponentsofNIVELTRONIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 966.5.6 UseofDifferentGradeSensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1006.6 PositionofSensorsforControloftheFloatingScreed (Example:ReferencingfromStringline) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1046.7 PositionoftheGradeSensorinTransverseDirection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1056.8 UseofScreedAssist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1066.9 JointsbetweenLanes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1086.9.1 PavingHottoCold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1086.9.2 PavingHottoHot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1096.10 JointsinAsphaltPavements.......................................................1106.11 ExpansionJoints. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

7 ImperfectPaving 114

7.1 PavingProblems/PavingErrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1167.1.1 IrregularitieswhenPassingOverMix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1167.1.2 PavementIrregularitiesduetoLargeScreedPlaningAngle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1177.1.3 BuldgeFormedwhenResumingPaving. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1187.1.4 ShortIrregularitiesinTransverseDirection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1197.1.5 PeriodicIrregularitiesinLongitudinalDirection.......................................1207.2 SegregationinGeneral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1227.2.1 TransverseStrips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

7.2.2 StripsintheMiddleofthePavement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1257.2.3 StripsintheLateralAreasofthePavement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1267.2.4 PatchesofMixintheSurfaceTexture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1277.3 Imprints. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1287.4 LongitudinalStep. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1287.5 Non-UniformSurfaceStructureduetoCrushedGrains. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

8 BasicsforCalculation 130

8.1 QuantityofMix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1328.2 LaydownRate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

9 PavingMaterials 134

9.1 GeneralPavementStructure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1369.2 ProducingAsphaltMix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1409.3 TypesofPavementLayers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1449.4 BitumenGradesUsed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1459.5 AsphaltTypesandtheirCompositions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1469.5.1 StoneMasticAsphalt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1469.5.2 AsphalticConcrete(PavedHot) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1489.5.3 AsphalticBinder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1509.5.4 AsphaltBase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1529.6 MixTemperaturesinC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1549.7 CausesofPoorQualityofAsphalticConcreteMixes forHotPaving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

10 PreparationsforPavingHotMix 156

10.1 ChoosingtheRightPaver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15810.2 PreparingtheBaseforPaving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16010.3 SubsequentCompactionbyRolling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16010.3.1 DensityMeasurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16010.3.2 RulesforRolling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

11 Index/Notes 162

1 DesignofaRoadPaver

1.1 ComponentsofaRoadPaver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

6 7

1.1 ComponentsofaRoadPaver

1.TractionIn VGELE road pavers, powerful engines are installed for a high tractive effort. VGELE pavers come in tracked or wheeled versions.

2.MaterialHopperFeed lorries dump the paving material into the material hopper at the front of the road paver.

3.ConveyorsWide conveyors transfer the paving material from the material hopper through the conveyor tunnel inside the machine to the augers in front of the screed.

4.AugersAugers fulfi l the task of evenly spreading the mix in front of the screed. Augers are

adjustable in width to match the width of the screed so that uniform compaction of the paving material is ensured at all times.

5.ScreedThe screed is the core of the VGELE road paver. The screed acts upon the paving material by way of its own weight and the compactive effort of its compacting systems. This results in pre-compaction of the mix and profi ling of the placed layer.

6.ScreedHeatingIn order to prevent the asphalt mix from sticking to the screed plates and the compacting elements (tamper, vibrators, pressure bar(s)), electric heating is provided.

7.AdjustmentofScreedTowPointsVGELE pavers level out irregularities in the base by adjusting the screed tow points in height. This is done by way of hydraulic rams.

8.ScreedAssistDepending on the working conditions on site, pressure is applied to the hydraulic rams linked to the screed arms, or the hydraulic rams are relieved of pressure. This infl uences the weight of the screed (see pages 68, 72 and 73).

TheMachinesMadebyVGELE

Road pavers place all kinds of bituminous materials. When the mix has been dumped into the pavers material hopper by the feed lorry, conveyors transport the material in front of the screed. This is where the process of paving proper takes place. VGELE pavers stand out through their capability of producing high compaction, their excellent reliability as well as service-friendliness and ease of maintenance.

8

6

5

17

4

2 3

1 DesignofaRoadPaver

2.1 DifferencesinConstructionMachinerysMethods ofProfilingSurfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2 TheFloatingScreed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.3 TheoreticalOutlineoftheFloatingScreedPrinciple withoutControlSystem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.4 ControloftheFloatingScreed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.5 TrackedPaversandWheeledPavers . . . . . . . . . . . . . . . . . . . . . . . . . . 14-152.5.1 ExamplesofPaverApplications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-17

2.6 PaversandPerformances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182.6.1 TrackedPavers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-222.6.2 SpecialEquipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-232.6.3 WheeledPavers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-25

2 Machinery/Applications

10 11

2.2 TheFloatingScreed

The floating working tool is the main difference distinguishing a road paver from other construction machinery. In other words, the layer thickness only changes as a result of changes in the screeds planing angle or changes in the height of the screed tow points. This way, irregularities in the ground, when passed over, are diminished without having to intervene through a control system.

Short irregularities in the base are levelled out through the self-levelling property of the Floating Screed.

When passing over long irregularities, the height of the screed tow points changes, thus leading to a change in the layer thickness.

Depending on the screed planing angle, more or less mix is packed under the screed as the paver advances, and the layer thickness gradually changes over a longer distance.

Bulldozer

The working tool (blade) is firmly linked to the chassis via hydraulic rams. When passing over irregularities in the ground, these are transmitted to the blade to a greater extent, unless counteracted.

LiftofBlade

2.1 DifferencesinConstructionMachinerysMethodsofProfilingSurfaces

The response of the screed to such changes depends on:

- Pave speed

- Change in height of the screed tow points

- Properties of the mix (compactability, load bearing capacity).

HeightofScreedTowPoint

Speed PropertiesofMix

Grader

The working tool (blade) is firmly linked to the chassis via hydraulic rams. When passing over irregularities in the ground, these are transmitted to the blade to a lesser extent, unless counteracted.

LiftofBlade

RoadPaver

The working tool is not firmly linked to the chassis. The screed is carried by the mix (principle of the Floating Screed) and changes its position only as a result of changes in the screed planing angle. The screed moves up and down to a lesser extent than the actual irregularity.

ChangeinScreedPlaningAngle


412 13

H bh

a

2.4 ControloftheFloatingScreed

As the layer thickness needs not necessarily be constant over the entire section to be paved, the screed can be controlled while paving.

The following rule can be derived from the example of a paver passing over a short irregularity:

Taking into account different lengths (b) (extending over length of screed arm and depth of screed plate) for the different paver types, an average ratio of about 5 : 1 results as far as compensation of a short irregularity in the base is concerned.

Long irregularities in the base can only be levelled out by actively controlling the height of the screed tow points.

2.3 TheoreticalOutlineoftheFloatingScreedPrinciplewithoutControlSystem

Please Note

The evenness of the pavement must increase with every layer placed. The magnitude of improvement depends on the quality of the layer below.

123

45 67

h=Hxa

b

h = HeightaftercompensationH= Heightofirregularitya = Depthofscreedplateb = Lengthofscreedarm +depthofscreedplate


7.HydraulicRamsforRaising/LoweringtheScreed

These hydraulic rams primarily serve to lift the screed. They move up and down freely in Screed Float mode. The rams can also be actively operated in special paving situations.

6.TheScreedOperatorsConsole

The screed operator can adjust the position of the hydraulic rams for tow point control from his lateral console.

5.ScaleforLayerThickness

The scale indicates the current position of the screed tow points to the paver and screed operators.

2.ScreedArm

The screed arm serves as a lever for converting a vertical change (up or down) of the screeds tow points into a change in the screeds planing angle. It also levels out irregularities in the base.

1.ScreedPlaningAngle

The layer thickness can be changed by changing the planing angle of the screed.

3.ScreedTowPoints

While paving, the screed is controlled by adjusting the screed tow points up or down.

4.HydraulicRamsforTowPointControl

The hydraulic rams serve to adjust the height of the screed tow points.

14 15

2.5 TrackedPaversandWheeledPavers

VGELE pavers are available in tracked or wheeled versions. Each version offers its particular advantages.

ADVANTAGESOFTHETRACKEDPAVER

High tractive effort. Universal application. Handles large pave widths.

Easily pushes heavy feed lorries.

Use also on a soft base.

ADVANTAGESOFTHEWHEELEDPAVER

Travel from one job to another under its own power. Travel speed up to 20km/h also on public roads.

Ideal when frequent and quick transfer is required.

Smooth running when paving asphalt wearing course.

Excellent manuvrability. Front wheels are in permanent contact

with the ground thanks to oscillating axle.

TrackedPaver

Crawler tracks transmit the power delivered by the high-performance engine to the ground. In contrast to wheels, crawler tracks have a larger contact area with the base, allowing them to achieve a higher tractive effort. For the tracked pavers, the power is generated where it is needed: right at the sprocket.

The powerful undercarriage is ideal for use of the paver also on diffi cult terrain and in large pave widths up to 16m. For the two crawler tracks, separate electronic control is provided. This allows impeccable turning also of radii at a constant pave speed.

WheeledPaver

Wheeled pavers display their strong points above all when it comes to frequent travels from one project to another. VGELE pavers travel at speeds up to 20km/h under their own power, so no trucking required for job sites in the near surroundings. The wheeled VGELE pavers feature excellent manoeuvrability thanks to a turning radius of just 6.5m.

For placing high-quality surface course, smooth running of the paver is a must. The wheeled VGELE pavers optimally achieve this goal thanks to the damping effect of their rear wheels.


16 17

ClassicalApplication

Placing all kinds of pavement layers for roadways and paths. Pavers are available in various performance classes and combine with a variety of screed options to handle these paving jobs. Layer thickness ranges from 2cm to 40cm.

2.5.1 ExamplesofPaverApplications

PavingonaSlope(Vertical)

Apart from construction of conventional roads with gradients (uphill or downhill), road pavers can also be used for special applications, such as paving on a slope for construction of dams, retaining walls, etc. In general, only slight conversion of the paver is required for handling this kind of jobs. For application under extreme conditions (steep slope), a special Slope Paver can be used that has undergone modification.

PavingonaSlope(Horizontal)

As an alternative to paving in a vertical direction, pavers also work in a horizontal direction. In general, such applications, too, require no more than slight conversion of the paver. Paving work like this is also often found in the field of dam or canal construction.

PavingAsphaltTracksorSpecialProfiles

Extending Screeds can be set up for paving a large variety of special profiles thanks to their systems for adjustment. Special slipforms are available for paving farm tracks. Furthermore, the screeds are suited to placing track beds for railway routes or building parabolic profiles for racing circuits, to mention just a few examples.


18 19

Tracked Paver SUPER600

Maximum Pave Width 2.7m

Maximum Laydown Rate 200 tonnes/h

Engine Output 45kW

Rpm (according to DIN) 2,300

Weight 5.3 tonnes

Fuel Tank 75 Iitres

Pave Speed 1 30m/min.


Material Hopper 5 tonnes

Tracked Paver SUPER1100-2



Engine Output 58kW


Weight 8.5 tonnes

Fuel Tank 120 Iitres

Maximum Pave Speed 30m/min.

Maximum Travel Speed 3.6km/h




Engine Output 45kW


Weight 6.1 tonnes

Fuel Tank 75 Iitres





Maximum Pave Width 5m


Engine Output 74.9kW


Weight 9.5 tonnes






2.6 PaversandPerformances

2.6.1 TrackedPavers


20 21




Engine Output 100kW


Weight (depending on screed) 18.4 tonnes


















Engine Output 142kW








Maximum Laydown Rate 1,100 tonnes/h

Engine Output 182kW









22 23




Engine Output 273kW






Material Hopper 17.5 tonnes

2.6.2 SpecialEquipment

SUPER2100-2IPfor Paving Binder Course



Engine Output 182kW


Weight* 26.6 tonnes





*without extra material hopper

Conveying Capacity 900 tonnes/h*

Feed Height (hopper bottom) 625mm

Engine Output 112kW


Weight Mobile Feeder 16 tonnes

Weight Receiving Hopper up to 2 tonnes


Maximum Operating Speed 16m/min.


*dependent on type of mix

MT1000-1Mobile Feeder





Weight* 20.8 tonnes





*with screed, SprayJet Module without emulsion

SUPER1800-2with SprayJet Module


24 25

2.6.3 WheeledPavers



Engine Output 58kW


Weight 8.6 tonnes



Maximum Travel Speed 20km/h


Wheeled Paver SUPER1103-2





Weight 9.5 tonnes








Engine Output 100kW


Weight (depending on screed) 17 tonnes

















3.1 FeedofPaverwithMix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-29

3.2 ConveyanceofMix(LongitudinalDirection) . . . . . . . . . . . . . . . . . . . . . . . . 30

3.3 SpreadingofMix(TransverseDirection)...........................31

3.4 DistanceBetweenTractorUnitandScreed. . . . . . . . . . . . . . . . . . . . . 32-33

3 MaterialFeedandMaterialHandling

28 29

3.1 FeedofPaverwithMix

The feed truck reverses up to the paver and stops a few centimetres in front of it. If it were to hit the pavers push-rollers, the screeds trailing edge might leave a trace in the pavement.

As the paver approaches, its push-rollers touch the rear wheels of the truck, which is then pushed by the paver.

Mix is dumped from the feed truck into the pavers material hopper.


30 31

!

3.2 ConveyanceofMix(LongitudinalDirection) 3.3 SpreadingofMix(TransverseDirection)

The mix is evenly spread in front of the screed by two separately controlled rotating augers located between tractor unit and screed. Extensions can be fitted to the auger shafts so that the spread width can be optimally adapted to the pave width.

The rotational speed of the auger is controlled by sensors in proportion with the head of mix in front of the screed. This permits optimal adjustment to match the requirement for mix when turning a radius or when paving layers of varying thickness. In extreme cases, auger rotation can be reversed so that the mix is moved from the outside inwards.

Tip!

The auger shaft should reach up to 20cm within the end plate. This promotes a continuous flow of mix.

SpreadingDirection

The truck reverses up to the paver and tips the mix into the pavers material hopper. From there, it is transported through the machine by two separately controlled conveyors, ascending slightly towards the rear. As a result of the higher dumping point, thicker pavement layers can be placed and the mix is delivered onto the augers instead of being pressed into them.

The conveyor speed is controlled in proportion with the level of mix in the auger tunnel. When moving the paver on site, mix can be returned to the material hopper by briefly reversing the conveyor movement.


!!

32 33

NormalScreedPosition

For all standard mixes and a layer thickness between 3cm and 25cm.

3.4 DistanceBetweenTractorUnitandScreed

In order to allow high-quality paving of most varied layer thicknesses and different paving materials, the screeds position can be varied.

Larger distance between augers and screed. This helps avoid any segregation of mix that might occur.

When laying a mix of poor bearing capacity in thick layers, the screed tow point rams may not be able to set the screed to the required screed planing angle.

In this case, the screed arm can be changed in position to permit a large planing angle even when paving thick layers.

This set-up is recommended when paving a mix of poor bearing capacity in thick layers. The larger auger tunnel prevents the auger drawing the mix away from under the screed.

Attention!

Higher tractive effort required when distance between augers and screed is larger.

Attention!

A higher tractive effort is required as a result of the larger head of mix in front of the screed.


4.1 FunctionFulfilledbytheScreed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36-37

4.2 ExtendingScreeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38-394.2.1 CompactingSystemsInstalledinExtendingScreeds . . . . . . . . . . . . . 40-414.2.2 ExtendingScreedsandBolt-onExtensions..................... 42-434.2.3 Set-UpoftheExtendingScreed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44-45

4.3 Fixed-WidthScreeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 464.3.1 OptionsforFixed-WidthScreedsandSpecialConcreteScreed . . . . . . . . . 474.3.2 CompactingSystemsInstalledinFixed-WidthScreeds . . . . . . . . . . . . 48-494.3.3 Fixed-WidthScreedsandBolt-onExtensions . . . . . . . . . . . . . . . . . . . 50-534.3.4 BuildingUpaFixed-WidthScreedwithBolt-onExtensions . . . . . . . . 54-55

4.4 ScreedsataGlance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56-57

4.5 Set-UpofTamper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

4.6 Set-UpofTamperShield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

4.7 Set-UpofPressureBar(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

4.8 BevelIrons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

4.9 FunctionCheckofScreedHeating. . . . . . . . . . . . . . . . . . . . . . . . . . . . 62-63

4 Screed

36 37

4.1 FunctionFulfilledbytheScreed

The screed, the road pavers working tool, fulfi ls the function of uniformly compacting the paving material across the entire pave width and producing a close-textured and level surface.

The screeds compacting systems shall pre-compact the mix to the greatest possible extent. This is to minimize the infl uence of layer thickness upon the amount of subsequent compaction by rolling when bringing about the pavements fi nal density.

For pre-compaction, different compacting systems are available:

T =Tamper (an eccentric shaft causes the tamper bar to move up and down)

V =Vibrators (vibrations are generated by an eccentric shaft acting on the screed plates at right angles to the direction of motion)

P =PressureBar(s) (the pressure bar(s) are hydraulically pressed onto the mix at a frequency of 68 Hz (approx.) and a maximum pressure of 130 bar)

P1=Screedequippedwith1PressureBarP2=Screedequippedwith2PressureBars

ScreedTechnology

The screed is the true heart of the VGELE paving system. It accommodates the compacting systems which provide high density and durable results. VGELE screeds are available in two versions: as Fixed-Width Screeds (SB) or Extending Screeds (AB).

HydraulicRamforScreedWidthControl

SlidingRestraintSystem

Single-TubeTelescopingSystem

TamperwithHeatingRod

PressureBarswithHeatingRods

ScreedPlatewithHeatingElement

ScreedsHydraulicallyExtendingUnit

ScreedBody

DesignoftheVGELEExtendingScreed

4 Screed

38 39

4.2 ExtendingScreeds

Screed Versions V, TV

Basic Width 1.1m


Larger Widths V/TV: 35cm to 2.7m with Bolt-on Extensions TV: 60cm to 3.2m

Reduction in Width Infinitely Variable Range 0.5m to 1m

Crown Adjustment (Mechanical) -2% to +4%

Weights V: 600 kg (Basic Screed) TV: 720 kg

AB200Extending Screed

AB340Extending Screed

AB500-2Extending Screed

AB600-2Extending Screed

AB 200 V (with vibrators) has been specially designed for use with SUPER 600. AB 200 TV (with tamper and vibrators) combines with SUPER 800.

Screed Versions V, TV

Basic Width 1.8m


Larger Widths V/TV: 40cm to 4.2m

with Bolt-on Extensions TV: 55cm to 4.5m

TV: 80cm to 5m

Reduction in Width with Cut-Off Shoes 52.5cm

Crown Adjustment (Mechanical) -2.5% to +4.5%

Weights V: 1.3 tonnes (Basic Screed) TV: 1.4 tonnes

The AB 340 Extending Screed is the perfect match for the compact pavers in the SUPER 1100 and SUPER 1300 classes. Like all VGELE screeds, it comes with a powerful screed heating system.

Screed Versions TV, TP1, TP2

Basic Width 2.55m

Maximum Pave Width 8.5m*

Larger Widths 25cm, 75cm, with Bolt-on Extensions 125cm


Crown Adjustment (Mechanical1) -2.5% to +5%*

Weights TV: 3.2 tonnes

(Basic Screed) TP1: 3.45 tonnes

TP2: 3.8 tonnes

*dependent on type of tractor unit 1 hydraulic (option)

AB 500-2 combines with all VGELE tractor units featuring a basic width of 2.5m. The screed extends hydraulically from 2.55m to 5m, so that pave widths within this range can be handled without a need to fit bolt-on extensions.

AB 600-2 is ideally suited for combination with VGELE pavers in the upper mid-range and also with SUPER 2500 (basic width 3m).

Screed Versions TV, TP1, TP2

Basic Width 3m


Larger Widths 25cm, 75cm, with Bolt-on Extensions 125cm


Crown Adjustment (Mechanical1) -2.5% to +5%*



TP2: 4.3 tonnes

*dependent on type of tractor unit 1 hydraulic (Option)

4 Screed

40 41

4.2.1 CompactingSystemsInstalledinExtendingScreeds

V=Vibrators

Installed in:

- AB 200 - AB 340

Recommended for:

- Materials which are easy to compact.

TV=TamperandVibrators

Installed in:

- AB 200 - AB 340 - AB 500-2 - AB 600-2

Recommended for:

- All conventional mixes.- Use with wheeled pavers due to the lower weight

as compared to screeds in TP1 or TP2 versions.- Materials which are easy to compact.

TP1=Tamperand1PressureBar

Installed in:

- AB 500-2 - AB 600-2

Recommended for:

- All conventional mixes.- Pre-compaction by a screed in TP1 version

is higher than by a TV screed, but lower than by a screed in TP2 version.

- Less extra compaction by rolling required.

TP2=Tamperand2PressureBars

Installed in:

- AB 500-2 - AB 600-2

Recommended for:

- All conventional mixes.- The screed in TP2 version achieves a high

pre-compaction when placing thick layers.- Mixes which are difficult to compact on account

of their grain shapes and consistency.- Less extra compaction by rolling required.- Jobs which do not allow subsequent compaction

by rolling.

4 Screed

42 43

4.2.2 ExtendingScreedsandBolt-onExtensions

For all VGELE screeds, bolt-on extensions are available. The VGELE system of bolt-on extensions allows to easily and sturdily build up screeds to any pave width desired. Even when paving in large widths, VGELE screeds work with highest precision and achieve superb degrees of uniform density right up to the pavement edges.

When fitting bolt-on extensions, care must be taken to ensure that the bottom edge of the screed plate is flush with the adjacent units, otherwise a step may be produced in the pavement or the screed planning angle may change. During the paving process, this can have a negative effect on pre-compaction, surface structure and floating behaviour of the screed.

4 Screed

AB500-2 AB600-2

1.225m 1.225m2.55m5m

2x0.25m

5.5m

2x0.75m

6.5m

2x0.75m+2x0.25m

7m

2x1.25m

7.5m

4x0.75m

8m

4x0.75m+2x0.25m

8.5m

1.5m3m6m

2x0.25m

6.5m

2x0.75m

7.5m

2x0.75m+2x0.25m

8m

2x1.25m

8.5m

4x0.75m

9m

4x0.75m+2x0.25m

9.5m

1.5m

3.4m

2x0.4m

4.2m

2x0.55m

4.5m

1.8m 0.8m0.8m

2x0.8m

5m

AB200 AB340

0.45m1.1m

2m

2x0.35m

2.7m

2x0.6m

3.2m

0.45m

44 45

4.2.3 Set-UpoftheExtendingScreed

1. Position both extending units in place so that the screed plate of the basic unit and the screed plates of the extending units are roughly level.

2. Slacken the chains connecting the spindles on the extending unit so that each spindle can be adjusted independently.

3. Carefully lower the screed onto the extending units. Timber should be placed under the middle of the two extending units.

4. Now adjust the screed planing angle via the tow point rams so that the screed plate rests on the timber.

5. Remove the locking screw from the threaded bush on all spindles.

6. Adjust all threaded bushes.

7. Refit the locking screws.

8. Raise the screed and secure it so that it cannot sink.

9. Lay a ruler along the inner and outer spindle pairs and then adjust the height of the extending unit via the front and rear spindles with the aid of a special wrench, so that the screed plate of the basic unit is level with the trailing edge of the extending unit. Now adjust the planing angle of the extending unit via the front spindle.

10. Reconnect the spindle pairs with the chains.

11. Raise the frame of the extending unit by approx. 4mm so that it roughly corresponds to the planing angle of the screed.

12. During the first on-site job, the height of the extending units must be corrected until a longitudinal step is no longer visible.

BasicUnit

0.5mm

ExtendingUnit

Timber Spindles

BasicUnit ExtendingUnit

0.5mm

4 Screed

46 47

4.3 Fixed-WidthScreeds

Screed Versions TV, TP1, TP2, TVP2

Basic Width 2.5m


Larger Widths 25cm, 50cm, with Bolt-on Extensions 100cm, 150cm

Reduction in Width with Cut-Off Shoes 25cm, 50cm




TP2: 2.02 tonnes TVP2: 2.1 tonnes

SB250Fixed-Width Screed

SB300Fixed-Width Screed

HydraulicBolt-onExtensionsfor SB 250 / SB 300 Fixed-Width Screeds

SB250BConcrete Screed

The SB 250 Fixed-Width Screed combines with a variety of VGELE tractor units. The screed allows tractor units with a basic width of 2.5m to make use of the advantages offered by VGELE Fixed-Width Screed Technology.

The SB 300 Fixed-Width Screed for SUPER 2500 covers a wide range of applications from a basic width of 3m through to a maximum width of 16m.

Fixed-Width Screeds are ideal for paving in larger widths. Their fields of applications are enhanced by VGELE Hydraulic Bolt-on Extensions.

For concrete paving, high compaction is a crucial issue. The SB 250 B Concrete Screed is ideally suited to PCC paving on storage areas for containers, roads on factory grounds, industrial floors, etc.

Screed Version TVP2

Basic Width 2.5m



Crown Adjustment (Mechanical) -2% to +3%*

* With SUPER 1900-2. Other pave widths or tractor units upon request. Use of the SB 250 B Concrete Screed belongs to the field of special applications. Clients interested in this screed are requested to contact the VGELE Applications Technology Service.

4.3.1 OptionsforFixed-WidthScreedsandSpecialConcreteScreed

Screed Versions TV, TP1, TP2, TVP2

Basic Width 3m



Reduction in Width with Cut-Off Shoes 25cm, 50cm


Weights TV: 2 tonnes


TP2: 2.41 tonnes TVP2: 2.5 tonnes

4 Screed

Screed Versions T, TP1, TP2

Infinitely Variable Range, Each Side 75cm

Infinitely Variable Range, Total 1.5m

Weigths T: 1.55 tonnes

(1 Set) TP1: 1.7 tonnes

TP2: 1.8 tonnes

To be mounted to 1m or 1.5m fixed bolt-on extensions

Basic screed needs to be enlarged in width by at least

1.5m, left and right sides

Mounting

48 49

4.3.2 CompactingSystemsInstalledinFixed-WidthScreeds

TP2=Tamperand2PressureBars

Installed in:

- SB 250 (and Hydraulic Bolt-on Extensions) - SB 300 (and Hydraulic Bolt-on Extensions)

Recommended for:

- All conventional mixes.- A screed in TP2 version achieves a high

pre-compaction even of thick pavement layers.- Mixes which are difficult to compact on account

of their grain shape and consistency.- Jobs where paving can be done in a largely

constant width.- Large radii.- Less effort required for subsequent compaction

by rolling.

TVP2=Tamper,Vibratorsand2PressureBars

Installed in:

- SB 250 - SB 300 - SB 250 B

Recommended for:

- Jobs where paving can be done in a largely constant pave width.

- Large radii.- SB 250, SB 300: All conventional mixes.- SB 250 B: For paving PCC, as this type of job does

not include subsequent compaction by rolling.

TV=TamperandVibrators

Installed in:

- SB 250 - SB 300

Recommended for:

- All conventional mixes.- Materials which are easy to compact

or thinner pavement layers.- Jobs where paving can be done in a largely

constant width.- Large radii.

TP1=Tamperand1PressureBar

Installed in:

- SB 250 (and Hydraulic Bolt-on Extensions) - SB 300 (and Hydraulic Bolt-on Extensions)

Recommended for:

- All conventional mixes.- Pre-compaction by a screed in TP1 version

is higher than by a TV screed, but lower than by a screed in TP2 version.

- Jobs where paving can be done in a largely constant width.

- Large radii.- Less effort required for subsequent compaction

by rolling.

4 Screed

50 51

4

TopViewHorizontalBracing

4.3.3 Fixed-WidthScreedsandBolt-onExtensions

As a general rule, bolt-on extensions should be fitted symmetrically on both sides of the screed, wherever possible. The advantage of a Fixed-Width Screed is a deeper screed plate of 500mm compared to a screed plate of 250mm found on Extending Screeds. This has a positive effect upon the screeds floating behaviour.

Moreover, the leading edge of the Fixed-Width Screed forms a single line over the entire pave width and different planing angles do not leave marks in the pavement. Fixed-Width Screeds are capable of handling considerably larger pave widths than Extending Screeds, albeit with restrictions as regards the screeds variability. As a result, Fixed-Width Screeds are particularly suited to paving long sections with a large, unchanging pave width.

HydraulicBolt-onExtensionforavariablepavewidthofFixedScreeds.

Please Note

The Hydraulic Bolt-on Extensions can only be fitted to mechanical extensions of 1m or longer. The basic screed needs to be enlarged in width by at least 1.5m, left and right sides.

BasicScreed3m

1.5m 1.5m 0.25m

1.5m 1.5m 0.25m0.5m

0.5m

1.5m 1.5m 0.25m1m 1m

1.5m 1.5m1m 1.5m0.5m

1.5m 1.5m1m 1.5m 0.5m0.25m0.5m

1.5m 1.5m 1m1.5m0.25m0.5m

1.5m

1.5m 1.5m 1m1.5m0.25m 1.5m1m 0.5m

1.5m 1.5m 1.5m1.5m 0.25m1.5m1.5m

1.5m 1.5m 1.5m1.5m 1.5m1.5m 1.5m1.5m0.25m 0.5m

1.5m 1.5m 1.5m1.5m 1.5m1.5m 1m1m 0.25m

1.5m 1.5m 1.5m 1.5m 1.5m1.5m 1.5m1m0.5m

1.5m 1.5m 1.5m1.5m 1.5m1.5m 0.25m0.5m

0.5m

6m 6.5m

7m 7.5m

8m 8.5m

9m 9m

9.5m 10m

10m 11.5m

11.5m 12m

12m 12.5m

13m 13.5m

14m 14.5m

15m 15m

15.5m 16m

4 Screed

52 53

4 Screed

RearViewVerticalBracing

BasicScreed3m

1.5m

0.25m

0.25m0.5m

6m 6.5m

1.5m

1.5m

7m 7.5m

1.5m

0.5m

0.25m

1.5m

8m 8.5m

1.5m

1.5m

9m 9m

1.5m

0.5m

0.5m0.5m

1.5m

9.5m 10m

1.5m

0.25m

1.5m

10.5m 11m

1.5m

0.75m 0.75m

0.75m 1.5m

0.75m 1.5m

0.5m0.25m

0.75m1.5m1.5m

BasicScreed3m

1.5m

0.5m

0.25m

11.5m 12m

1.5m

1.5m

12m 12.5m

1.5m

0.25m

0.25m

1.5m

13m 13.5m

1.5m

1.5m

14m 14.5m

1.5m

1.5m

15m 15m

1.5m

1.5m

15.5m 16m

1.5m

0.75m 1.5m

1.5m

1.5m1.5m

1.5m 0.75m1.5m0.75m

0.5m

1.5m 1.5m1.5m1.5m

0.5m

1.5m 1.5m1.5m1.5m

1.5m1.5m1.5m

0.25m

0.75m

0.75m 1.5m1.5m1.5m

0.5m

1.5m

1.5m1.5m 1.5m

0.5m0.25m

1.5m

54 55

!

4.3.4 BuildingUpaFixed-WidthScreedwithBolt-onExtensions

Bolt-on extensions are fitted to enlarge the screeds width. The trailing edges of the screed plates shall be flush across the entire pave width. The leading edges of the screed plates should be set higher towards the outside by roughly 0.5mm.

Horizontal braces are to be fitted in such a way that the trailing edges of the screed plates are flush.

To compensate the uplift at the outer edges of the screed, there should be a light sag of the screed when raised. The magnitude of this sag depends on the pave width. The sag can be adjusted by way of the braces over the screeds basic unit.

In order to prevent the bolt-on extensions from bending towards the rear as a result of the pressure exerted by the mix, horizontal braces must be fitted.

Recommendation

Pave Width Sag

16m 5.5cm (approx.)

12m 3.5cm (approx.)

up to 10.5m 2cm (approx.)

RearView

TopView

+0mm+0.5mm+0mm+0.5mm

BasicScreed 1.5m 1.5m 1.5m1.5m 1.5m 1.5m

Sag

Attention!

The values indicted in the table are approximate values for set-up of the screed. When paving, the transverse evenness of the pavement needs to be checked and the braces be re-adjusted, if necessary.

4 Screed

56 57

4.4 ScreedsataGlance

PaverType

SUPER 600

SUPER 800

SUPER 1100-2

SUPER 1103-2

SUPER 1300-2

SUPER 1303-2

SUPER 1600-2

SUPER 1603-2

SUPER 1800-2

SUPER 1803-2

SUPER 1900-2

SUPER 2100-2

SUPER 2500

MaximumPaveWidths

ScreedType

AB 200 V AB 200 TV AB 340 V AB 340 TV AB 500-2 AB 600-2 SB 250 SB 300

2.7m

3.2m

4.2m

4.2m

5m

4.5m

8m 8m

7m

8.5m 9m 10m

8m 8m

8.5m 9.5m 11m

8.5m 9.5m 13m

9.5m 16m

PaverType

ScreedVersionsforCompaction

ScreedType/SystemsforCompaction

AB 200 AB 340 AB 500-2 AB 600-2 SB 250 SB 300

SUPER 600

SUPER 800

SUPER 1100-2

SUPER 1103-2

SUPER 1300-2

SUPER 1303-2

SUPER 1600-2

SUPER 1603-2

SUPER 1800-2

SUPER 1803-2

SUPER 1900-2

SUPER 2100-2

SUPER 2500

V TV V TV TV TP1 TP2 TV TP1 TP2 TV TP1 TP2 TVP2 TV TP1 TP2 TVP2

X

X

X

X

X

X

X X X X X X

X X

X X X X X X X X X

X X X

X X X X X X X X X X

X X X X X X X X X X

X X X X X X X

4 Screed

58 59

!

4.5 Set-UpofTamper

The tamper shall be set to an identical stroke length across the entire pave width. The setting can be changed by simply turning the eccentric bush on the shaft driving the tamper bar. The driving shaft is accessible from behind, so that this can easily be done between job site sections. Adjusting the lower reversal point of the tamper bar, however, takes more time. First, the tamper shields need demounting. Then remove the screws on all shaft brackets. After loosening the locking nut (2), the tamper bar can be adjusted via bolt (1). The height to be set depends on the tamper stroke selected.

TamperStroke2mm

The tamper bar at the lower reversal point is flush with the bevelled edge of the screed plate.

EccentricShaftatLowerReversalPoint

4.6 Set-UpofTamperShield

The tamper (3) must be set so that it rests on the wear strip (1) across the full width. Then adjust the spring steel bar (2) on the tamper shield by means of screw (4) from the rear of the screed until a gap of 0.5 - 1mm is obtained between tamper bar and the spring steel bar.

Release screws (6) and fit various small shims (5) to align the tamper shield. With the tamper shield correctly aligned, the spring steel bar (2) is at least parallel with the tamper or preferably inclined slightly to the front.

Check the clearance between tamper and spring steel bar and correct, if necessary.

0mm

Tip!

At a stroke length of 2mm, the tamper bar should be flush with the screed plate (check with your hand).

TamperStroke4mm

The tamper bar at the lower reversal point is 1mm lower (maximum) than the bevelled edge of the screed plate.

TamperStroke7mm

The tamper bar at the lower reversal point is 3.5mm lower than the bevelled edge of the screed plate.

ScreedPlate

TamperStroke2mm

BevelledEdgeofScreedPlate

0mm

ScreedPlate

TamperStroke4mm


1mm

ScreedPlate

TamperStroke7mm


2.5mm

ScreedPlate


1mmatStrokeLengthof4mm

Tamper

0.51mm

1

2

6

5

4

3

12

4 Screed

60 61

4.7 Set-UpofPressureBar(s) 4.8 BevelIrons

1. Unscrew the nut (2) with anti-twist device (3) on the hydraulic ram (1) for the pressure bar.

2. Turn the hydraulic ram (1) to adjust the height of the pressure bar. The clearance (7) between pressure bar and bottom edge of the screed plate should be at least 4mm.

3. Check that the hydraulic ram for the pressure bar makes contact with metal plate (5) when retracted.

4. Set pre-tension of spring (6) to 5.5mm via nut (4) to yield a distance (8) of 59.5mm.

5. Resecure the hydraulic ram (3) for the pressure bar.

0.51mm

Bevel irons shape and compact the edges of the pavement.

They are available with a bevel edge of 45 and 60. Their size depends on the thickness of the layer to be paved.

A heating rod can be installed as an option to improve the sliding properties of the bevel iron.

ScreedPlatePressureBar4mm

59.5mm

0.51mm

LayerThicknessAngle

45 60

4 6cm

6 12cm

12 18cm

12

4

6

6

43

58

7

4 Screed

62 63

! +

4.9 FunctionCheckofScreedHeating

All screed components in contact with the hot mix should be heated to approx. 90 C before starting work.

It is recommended to protect the screed against excessive loss of heat to the surroundings so that the heating power can be utilized effectively, for instance by putting down the screed, preferably on hot mix.

Asphalt may stick to the tamper bar, screed plates or pressure bar(s) if the screed temperature is too low. This can lead to the formation of strips and an irregular surface texture.

The floating behaviour of the screed may vary before it reaches its operating temperature, with the result that layer thickness may also vary and deviate from the desired one.

Tip!

Directly after switching on screed heating, correct operation of the heating rods can be checked by cautiously touching the tamper bar, screed plates and pressure bar(s).

For the dash 2 machines, a monitoring unit for screed heating is available as an optional extra. This feature monitors each single heating rod for proper function and indicates any fault without delay.

Should one of the green indicator lights extinguish over a prolonged period of time, then the reason may be:

n Poor insulationn Asymmetrical power consumptionn Generator temperature too high

Advantage

A failure of heating rods is detected immediately. New parts can be procured without delay to promptly restore the screeds full functionality.

1Engine2ControlDesk3ControlBox/FuseBox4DistributorBox5Generator6TamperwithHeatingRod7ScreedPlatewith2HeatingRods

1

2

5

6

7

4

3

4 Screed

5.1 PavingMaterial. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

5.2 PavingParameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

5.3 PaverSet-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67-69

5.4 RelationshipBetweenTamperSpeedandPaveSpeed . . . . . . . . . . . . . . . . 70

5.5 RecommendedSettingsfortheCompactingSystems. . . . . . . . . . . . . . . . 71

5.6 FunctionsoftheHydraulicRamsforRaising/Lowering theScreed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72-73

5 ParametersInfluencingthePavingProcess

66 67

MixTemperature - The mix temperature should be constant and high enough to prevent the mix from cooling before it is laid.

- Paving material that has cooled is harder to compact. - The load bearing capacity of the mix, too, depends

on its temperature. - Feed of the paver with mix shall be planned with

a view to an optimal temperature for paving.

GrainSize - The maximum grain size should not exceed 1/3 of the layer thickness.

MixComposition -The composition of the mix should remain constant throughout the paving job.

PropertiesoftheMix - Properties of the mix have an influence upon the screeds floating behaviour.

- Paving materials with a high bearing capacity confront the screed with a higher resistance than materials of poor bearing capacity.

- Conveying and compacting systems can be set up in an optimal manner to match the type of mix.

LayerThickness - The larger the layer thickness, the larger the screed planing angle.

PaveWidth - The floating behaviour of the screed changes in accordance with the pave width.

PaverStop - The longer the paver stop, the greater the irregularity to be expected in a longitudinal direction.

AmbientConditions - Ambient conditions, such as temperature, can influence the mix and change the floating behaviour of the screed.

5.1 PavingMaterial 5.2 PavingParameters

5.3 PaverSet-Up

- If there is a too large head of mix in front of the screed, the mix may cool, thus having an adverse effect upon both pre-compaction and the screeds floating behaviour.

- A constant head of mix in front of the screed is a precondition for perfect floating of the screed.

- The thicker the layer, the greater is the upward force exerted on the screed.

- Proportional control of conveyors and augers provides for an optimal head of mix in front of the screed.

HeadofMixinFrontoftheScreed


68 69


- The length of the tamper stroke and the tamper speed are factors influencing pre-compaction of the mix and floating of the screed.

- On VGELE screeds, the tamper stroke can be set to 2mm, 4mm or 7mm. The longer the tamper stroke, the higher the pre-compaction and the compaction depth. For this reason, the length of the tamper stroke should be set in accordance with the layer thickness in order to obtain the smallest possible, positive screed planing angle. A negative screed planing angle may result if the tamper stroke is too long for the layer thickness paved. This can lead to an open-textured, cracked surface structure and uncontrolled levelling resulting in irregularities.

TamperStrokeTamperSpeed

- Both the tamper speed and the pave speed have a major influence on pre-compaction of the mix. This means that the tamper speed must be adjusted in accordance with the pave speed or vice versa. An optimal relationship has not yet been found. For this reason, the values must be individually adjusted until the smallest possible, positive screed planing angle is obtained and wear on the compacting systems is minimized.

TamperSpeed

- When making major changes or one-sided changes to the screed planing angle, torsion of the screed may result.

RigidityoftheScreed

- Screed Freeze is a briefly activated feature following a paver stop in Screed Float mode. A pressure of about 30 bar is applied to the piston side of the hydraulic rams for raising / lowering the screed in order to prevent it floating up when resuming paving.

ScreedFreeze

- The pave speed determines the impact of the compacting systems on the pavement.

- Pave speed and head of mix in front of the screed must be well adapted to each other.

- When paving at a high speed, large quantities of paving material are consumed, which requires good job site logistics for supply of the paver with mix.

- The pave speed shall be selected so as to obtain as constant a supply of mix from the feed trucks as possible.

- As the pave speed has a major influence on pre-compaction, it should be set so that the positive screed planing angle is not too large, as this would promote irregularities. The pave speed should, therefore, be set to a value ensuring good pre-compaction with the screed floating on the mix at a small planing angle.

PaveSpeed

- When paving thick layers, the vibration frequency has little influence upon compaction. Vibration is far more important when paving wearing course, as it promotes the formation of a close-textured, even surface behind the screed.

VibrationFrequency

- The pressure bar(s) are moved up and down by a pulsed hydraulic pressure. These pulses are generated by a rotary valve in the screed at a rate of between 58 and 68 Hz. Hydraulic rams press the pressure bar(s) downwards over the entire pave width. At the end of each pulse, the pressure bar(s) are returned to their original positions by springs acting against the force of the rams. The pressure applied to the pressure bar(s) changes the distance travelled by the pressure bar(s) with each pulse.

Frequency/PressureofPressureBar(s)

70 71

5.4 RelationshipBetweenTamperSpeedandPaveSpeed

While paving, when screed tow point rams are not changed in position, an equilibrium of forces comprising pave speed, screed weight and tamper speed is established. If any one of these parameters changes, this immediately affects the screeds floating behaviour.

Tamper speed and pave speed are very strongly dependent on one another. Any change in pave speed without changing the tamper speed and position of the screed tow point rams will affect pre-compaction of the mix.

If the pave speed is increased without simultaneously increasing the tamper speed, the load bearing capacity of the mix will be reduced and the screed lay a thinner layer at a steeper planing angle.

PavingwithAutomatedGradeandSlopeControl

If Automated Grade and Slope Control is used for paving, the desired elevation of the screed can be maintained by increasing the planing angle, but pre-compaction will not remain constant.

AfterCompactionbyRolling

When the roller passes over the mix, the amount of extra compaction will differ on account of varying pre-compaction and result in irregularities in the surface.

5.5 RecommendedSettingsfortheCompactingSystems

KindofLayer

Wearing Course Binder Course Base Course

m/min. > 5 4 10 2 8

Stroke 2 4 4 4 7

(mm)

Revs/min.

300 800 800 1,200 1,200 1,800

Pressure 50 80 70 90 80 100 (bar)

Revs/min. 1,200 2,000 1,500 2,500 2,000 3,000

Pressure 45 70 60 90 90 110 (bar) Frequency 58 68 58 68 58 68 (Hz)

C > 120 > 120 > 120

PaveSpeed

TamperSpeed

Vibrators

PressureBar(s)

CompactingTemperature

8m/min. 4m/min.

PaveSpeed

LowPre-compaction

HighPre-compaction

8m/min. 4m/min.

PaveSpeed

8m/min. 4m/min.


72 73

!

5.6 FunctionsoftheHydraulicRamsforRaising/LoweringtheScreed

ScreedFloat

Normally, mix is paved with the screed in Screed Float mode. In other words, the piston-side and rod-side valves operating the hydraulic rams are open for free up and down movement.

ScreedAssist

If the bearing capacity of the mix is poor, the screed will not reach the desired elevation even when set to a large planing angle. The Screed Assist function allows pressure to be applied separately to the right and left-hand hydraulic rams from below. This pressure counteracts the screed weight and allows it to float up in accordance with the magnitude of the pressure.

ScreedFreeze

The Screed Freeze function is activated automatically following a paver stop in Screed Float mode. The valves activating the hydraulic rams for raising / lowering the screed are closed on both the piston and the rod sides, thus briefly suspending the Screed Float mode in order to prevent irregularities in the pavement when resuming paving.

Attention!

Do not use for wearing course!

ScreedFloat

ScreedAssistPressure

ScreedFreezePressure


6.1 BasicPrinciples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76-776.1.1 SettingtheLayerThickness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78-796.1.2 WeatherConditionswhenPavingAsphalt. . . . . . . . . . . . . . . . . . . . . . . . . . 806.1.3 RequirementsMadeontheBaseandSub-Base . . . . . . . . . . . . . . . . . 81-83

6.2 AugersandLimitingPlatesfortheAugerTunnel onanExtendingScreed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84-85

6.3 HeadofMixinFrontoftheScreed...............................86

6.4 DefinitionoftheRoute. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

6.5 CorrectUseofNIVELTRONIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 886.5.1 AutomatedGradeandSlopeControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 886.5.2 DevelopmentfromNIVELTRONICtoNIVELTRONICPlus. . . . . . . . . . . . . . 896.5.3 QuickReferenceGuideforNIVELTRONIC andNIVELTRONIC/V-TRONIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90-926.5.4 QuickReferenceGuideforNIVELTRONICPlus . . . . . . . . . . . . . . . . . . 93-956.5.5 ComponentsofNIVELTRONIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96-996.5.6 UseofDifferentGradeSensors . . . . . . . . . . . . . . . . . . . . . . . . . . . 100-103

6.6 PositionofSensorsforControloftheFloatingScreed (Example:ReferencingfromStringline). . . . . . . . . . . . . . . . . . . . . . . . . . 104

6.7 PositionoftheGradeSensorinTransverseDirection . . . . . . . . . . . . . . . 105

6.8 UseofScreedAssist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106-107

6.9 JointsbetweenLanes........................................1086.9.1 PavingHottoCold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1086.9.1 PavingHottoHot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

6.10 JointsinAsphaltPavements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110-112

6.11 ExpansionJoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

6 RecommendationsforPaving/PointstoNote

76 77

6.1 BasicPrinciples

n Before starting work, the minimum and maximum pave widths should be established and the paver be set up accordingly.

n The paving sequence should be co-ordinated with the other teams on site in order to assure the supply of material and prevent the hot mix being driven over too soon.

n The feed vehicles must be organized in such a way as to ensure a continuous supply of mix with as few paver stops as possible.

n Check with the mixing plant(s) to ensure that mix will be supplied as planned.

n Check serviceability of the road paver (filling levels, electrical and hydraulic functions, etc.).

n The feed vehicles tarpaulin cover should only be removed just before dumping the hot mix in order to prevent it cooling.

n The pave speed should be as constant as possible. If mix can only be supplied to a limited extent, it is better to continue paving slowly and uniformly than to interrupt the process by paver stops.

n In the event of prolonged disruptions in the supply of mix and in cool weather, it is advisable to use up the entire mix stored in the paver and then to lift up and clean the screed. The screed can be re-lowered and the work continued when the supply of mix is resumed.

n The composition and temperature of the mix should be checked regularly.

n The layer thickness should be checked regularly while paving in order to avoid errors.

n When using Automated Grade and Slope Control, the sensors must be checked to ensure that they are operating correctly.

n Paving by hand should only be done in exceptional cases, such as on small surfaces or in corners inaccessible to the paver.

n The rollers used for subsequent compaction must be dimensioned in accordance with the mix (compactability), paved area in square metres, temperature of the mix, surroundings and base so that roller compaction is completed before the mix has cooled.

n The pavement should only be re-opened to traffic when the temperature of the mix has dropped below 40 C in order to prevent any risk of deformation.

n The pave speed should be kept constant throughout the paving job, if possible.

n At the end of the day or between paving sessions, a transverse joint is to be installed.

n Adjustments on the screed while paving should be kept to a minimum.

n The pavers material hopper should not be run empty (to avoid segregation).

n If no kerbstones are installed, wearing course should always be paved with the screed in Screed Float mode. Do not use Automated Grade and Slope Control.


78 79

6.1.1 SettingtheLayerThickness

Due to the numerous parameters influencing the paving process, it has hitherto been impossible to develop a formula supplying exactly the right value for setting the tow point rams for a required layer thickness. When working with Extending Screeds, the general rule is: layer thickness in cm + (50 to 100%) yields roughly the values to be set on the pavers scales for layer thickness. The settings must be checked after paving the first few metres and corrected as required.

H = Layer Thickness S = Specified Thickness W = Amount of Compaction by Rolling

The screed only pre-compacts the mix. Final density is achieved through subsequent compaction by rolling. Rollers compact the mix by an amount (W) somewhere between layer thickness (H) and the specified thickness (S). (W) is the amount of subsequent compaction by rolling and must be taken into account when setting up the screed.

The planing angle results when setting the layer thickness H + (50 to 100%) via the tow point rams using the layer thickness scales. The layer thickness should be checked immediately when starting paving so that the position of the tow point rams can be corrected if necessary.

Since, on account on its floating behaviour, the screed would have to travel a certain distance before reaching the layer thickness, it is recommended to put the screed down on timbers or uniformly spread material level with the layer thickness.

After rolling, the surface must be checked to ensure it has the specified thickness. If not, the layer thickness must be corrected again until the correct result is obtained after rolling.

ScaleforLayerThickness

H W S

H

H

S


80 81

6.1.2 WeatherConditionswhenPavingAsphalt

On the majority of job sites, weather conditions can only be taken into account to a very limited extent because of the tight scheduling. However, this can give rise to problems when paving hot mix. In very cold conditions and if the distance between mixing plant and road paver is relatively long, the temperature of the mix may well have dropped to the lower limit permissible for paving.

6.1.3 RequirementsMadeontheBaseandSub-Base

n Depending on the bitumen type used, it will be difficult for the rollers to achieve the specified final density if the temperature of the mix is below 120 C when dumped from the feed lorry into the pavers material hopper.

n Since the ambient temperature causes the asphalt to cool more rapidly, wearing course should not be paved at temperatures below 3 C or better still below 6 C.

n Binder course contains more coarse grains which retain heat, with the result that such layers can still be paved at temperatures around zero.

n It may even be possible to pave base course at temperatures as low as -3 C, but be sure that the sub-base is always free from ice and snow.

n The decision whether or not paving is possible should not be made dependent on air temperature only: the temperature of the base must also be taken into account, as a cool base will similarly cause the mix to cool more rapidly.

n Paving on a wet or puddled base is not recommended. Water vapour may form under the paved layer when the hot mix comes into contact with moisture. Since this vapour strives to escape upwards, it produces cavities which will impair the bearing capacity and pre-compaction of the mix and may also have a negative effect on the screeds floating behaviour.

n Formation of vapour is normally unlikely when paving fresh emulsion, as the boiling point is very much higher.

n The sub-base under a non-bonded base must be level, stable and perfectly compacted, so that the asphalt pavement uniformly retains its load bearing capacity for a long time after being paved.

n It is advisable to hand over the sub-base with official acceptance guaranteeing that the load bearing capacity, evenness, as well as longitudinal grade and transverse slope meet with the requirements specified in the planning.

n When paving an asphalt layer on a bonded base, it should also be level, stable and compacted, just like the non-bonded base. Preliminary level regulating measures may be necessary if the sub-base is very uneven.

n It is also important to check the height of any shafts, drains or hydrants so that they cannot obstruct the paving process and remain accessible afterwards.

n The base must be cleaned by sweeping or with compressed air or a jet of water in order to ensure good bonding between pavement and base.

n The surface must then be sprayed with bitumen emulsion or a tack coat so that the freshly laid mix bonds with the base.


82 83

LevelRegulatingMeasuresBeforePlacingBaseCourse

The layer thickness should remain constant over the full pave width to the greatest possible extent. If it does not, it is recommended to level out major differences beforehand in order to achieve uniform pre-compaction and uniform extra compaction by rolling.

n The type of mix used for such level regulating purposes should be adapted to the layer thickness.

n This material can be laid either by hand or with the paver.

n Good pre-compaction of the level regulating layer is important.

FillingDepression

LayerThicknessandGrainSizeoftheMix

The layer thickness should be at least three times the largest grain size in the mix!

If this is not the case, grains may be crushed and the screed begin to bounce due to the impact of its compacting systems.

If the colour of the crushed stone appears on the surface, this indicates that grains have been destroyed. This is quickly revealed, as all constituents in the mix are normally coated with black bitumen.

In addition, the screed may be unable to maintain the required elevation and the layer thickness will increase.

RaisingLevelofShoulder


84 85

!

6.2 AugersandLimitingPlatesfortheAugerTunnelonanExtendingScreed

The head of mix in front of the screed should be uniform and constant. This is ensured by strike-off plates and limiting plates for the auger tunnel which should be adapted to the pave width. It also prevents segregation of the mix and helps cool more slowly.

Tip!

The augers and the limiting plates for the auger tunnel should reach up to within 20cm of the end plate.

You find overleaf examples of correct auger extension and installation of limiting plates for the auger tunnel.


Horizontal/VerticalBracingStrike-offPlate

LimitingPlateforAugerTunnel

Bolt-onExtension Bolt-onExtension

EndPlate

HorizontalBracingStrike-offPlate

LimitingPlateforAugerTunnel EndPlate

Horizontal/VerticalBracingStrike-offPlate

LimitingPlateforAugerTunnel

Bolt-onExtensions Bolt-onExtensions

EndPlate

86 87

6.3 HeadofMixinFrontoftheScreed

The head of mix in front of the screed should be uniformly spread over the full pave width. The fitting of limiting plates for the auger tunnel and of strike-off plates is strongly recommended.

Mix is not spread adequately from the inside outwards, with the result that there is too much mix in front of the screeds basic unit:

- Reduce pave speed / increase auger speed.

- Check / adjust position of sensor for augers.

- Adjust auger height.

The conveyors do not deliver sufficient mix:

- Increase conveyor feed rate.

- Reduce pave speed.

- Fit limiting plates for auger tunnel.

- Check / adjust position of sensor for augers.

- Adjust auger height.

A steering guide should be installed in the front of the paver to help the machine operator follow the route of the road as accurately as possible. The steering guide helps steer the paver in parallel to a reference line so that the screed operators do not constantly have to correct the pavers steering movements by extending and retracting the screed in order to obtain a continuous pavement edge.

Since the steering guide prevents excessive steering movements by the paver, it also helps the drivers of the feed vehicles dump the mix into the middle of the pavers material hopper.

6.4 DefinitionoftheRoute

On larger job sites or when working with a Fixed-Width Screed built up to a large width, it is advisable to work with Automated Steering Control, since the reference and the steering guide may be beyond the operators field of vision.

If Automated Steering Control is installed, it steers the paver parallel to the reference line. This relieves the paver operator allowing him to concentrate his full attention on other paving tasks.


88 89

6.5 CorrectUseofNIVELTRONIC

6.5.1 AutomatedGradeandSlopeControl

TowPointRam(left-handside)

TowPointRam(right-handside)

Sensor

Sensor

RemoteControl

ControlUnitNIVELTRONIC

ExternalInterface

DirectConnectiontotheHydraulics

ConnectionbetweenSensorandControlUnit

RS232Link(SerialInterface)

6.5.2 DevelopmentfromNIVELTRONICtoNIVELTRONICPlus

1998

2003

2006

NIVELTRONIC

n Sonic grade sensor availablen Sensitivity is variablen Sensor recognized automaticallyn External handsetn Operation from either side

of the screed

NIVELTRONIC/V-TRONIC

n Can busn Up to 3 sensors can be used

for the system (activated alternately)n Controls for grade & slope control

integrated in the screeds lateral console

n Display of machine parameters

NIVELTRONICPlus

n Easy-to-learn conceptn Fully integrated in the

pavers control systemn Mechanical grade sensorn Use of self-explanatory symbols


90 91

I/O I/O

R

P

PPPPPPP

PP

PPP

I/O

P

P

1. Handset

Symbols (Left Side/Right Side)

1. Desired Value2. mm or %3. Sonic Level Sensor

(use at variable height)4. Sensitivity5. Mechanical Level Sensor

(use at fixed height)6. Ground Mode

(when working with Sonic Sensor)7. Stringline Mode

(when working with Sonic Sensor)8. Slope

6.5.3 Quick Reference Guide for NIVELTRONIC and NIVELTRONIC / V-TRONIC

4. Fault Shown on Display

Indication on Display Meaning

Sensor Sensor not connected. Wire in sensor cable broken.

Connection Handset not correctly connected. Handset not connected.

Please Check Sonic sensor positioned outside the Working Window.

Remedy depending on situation: Correct position. Push Confirm key ( ) for control outside the Working Window. Calibrate anew.

a

b

c

1

2

3

4

5

6/7

8

LEDs (Left Side/Right Side)

a) LED Starb) LED Side of Screedc) LED Grade and Slope Control

On/Off

Keys

P Program KeyR Reset Key

Confirm Key+ Plus Key (Left Side/Right Side) Minus Key (Left Side/Right Side)I/0 On/Off (Left Side/Right Side)

(Calibration)

2. LED Star ON/OFF (Left Side/Right Side)

Grade and Slope Control: Off

Screed Too High Move Ram for Tow Point Control Downwards

Ideal PositionScreed Too Low Move Ram for Tow Point Control Upwards

Ideal Position of Sensor

- Push Confirm key ( ).- LED star extinguishes.

Indication of Fault (see Item 4)

Grade and Slope Control Deactivated

LED Star flashing: - Turn Traction Main Switch to I.

LED Star staying on: - Turn Traction Main Switch to 0.

6 Recommendations for Paving / Points to Note

1 . S T A T U S D I S P L A Y

2 . 2 D E V I A T I O N

2 . 3 V E R S I O N

2 . 4 D I A G N O S T I C S ( * D )

2 . 5 S I D E O F S C R E E D

2 . 6 S T A R T S T A T U S

2 . 7 L A N G U A G E

2 . 8 T O L E R A N C E ( * W )

2 . 1 A C T U A L V A L U E S

2 . O P T I O N S

1 . 1 S E T - U P

1 . 2 S E N S I T I V I T Y1 . 3 S E L E C T

1 . 4 C A L I B R A T E ( * S )

4 . M A C H I N E D A T A ( * D )

5 . + / - V A L V E S + / -

3 . S L O P EI/O

R

P

I/O

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3. Menue Structure

(*D) =

(*W) = (*S) =

Only for pavers with V-TRONIC.Only when using Sonic Sensor.Change from Stringline Mode to Ground Mode by pushing P key.

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F1 F3F2 F4 F5

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6.5.4 Quick Reference Guide for NIVELTRONIC Plus

Screed Operators Console

Assigment of Push-Buttons and Keys

1. LED crosses on the left and right-hand sides of the screed operators console indicate whether a deviation from specified values exists or not.

2. The two yellow buttons on the left and the right-hand sides are provided to activate or deactivate NIVELTRONIC Plus for the side of the screed concerned. With NIVELTRONIC Plus activated, the Start Screen is displayed.

3. By pushing the F1 key for the left-hand side or the F5 key for the right-hand side of the screed, you carry out Quick Set-Up. Just push these keys to define the actual value currently picked up by the sensor as a new specified value for grade or slope control.

4. With NIVELTRONIC Plus activated, use the arrow keys, up or down, to increase or decrease the value specified for the sensor on the side concerned.

Screed Too High Tow Point Ram moves DownIdeal PositionScreed Too Low Tow Point Ram moves Up

NIVELTRONIC

Right Side OFF: Tow Point Ram UpRight Side ON: Increasing specified value for right-hand side

Change Displayfrom NIVELTRONIC to Machine Data

NIVELTRONIC Right Side:ON / OFF

NIVELTRONIC

Right Side OFF: Tow Point Ram DownRight Side ON: Decreasing specified value for right hand side

NIVELTRONIC

Left Side OFF: Tow Point Ram Up

Left Side ON: Increasing specified value

for left-hand side

Screed Width Control

NIVELTRONIC Left Side:ON / OFF

NIVELTRONIC

Left Side OFF: Tow Point Ram Down

Left Side ON: Decreasing specified value

for left-hand side

6 Recommendations for Paving / Points to Note

5. Set-Up

1 Setting up Screed

Set screed to desired position for paving.

2 Activating Mode for Calibration (Zeroing)

Status 1 Status 2

- Push key. - Push key.

- LED comes on. - LED extinguishes. (Mode for calibration activated)

- Push Program key to select desired Mode: Calibrate / Sensitivity / Sensor etc.

- Push key to confirm.

3 Calibrating: 4 Calibrating: 5 Calibrating: Slope Sensor Sonic Level Sensor Mechanical Level Sensor

On display: - 0.27% - 0.27% On display: + 400mm 0mm On display: + 3mm This means: Actual Value Displayed Value This means: Actual Value Displayed Value This means: Actual Value

When displayed value not identical with Make correction of displayed value with Correct position of mechanical measured value (measured for instance keys. level sensor with adjusting spindle with spirit level): until 0 is displayed.

Make correction with keys. Select Stringline Mode or Ground Mode with key.

6 Confirming Calibration

Confirming calibration only possible Push Confirm key. when LED Star is on.

7 Activating Grade and Slope Control

Push key to activate Grade and Slope Control. LED in key comes on to indicate that Grade and Slope Control is activated.

8 Changing Values While Paving

For changing values (Slope Sensor, Sonic Level Sensor) while paving: Use keys.

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Documents

Booklet on Paving