TRIMA Service Manual

SERVICE SCHOOL2002

1. Loader

2. ELC

3. FLD 1000

4. AutoSafe

5. 3rd - 4th function

6. TMD

7. TCC

8. General hydraulics

9. General attachments

10. Evaluation of welding quality

11. Evaluation template for twisted loader

12. Instruction manual

13. Claims under warranty

14. Trima accessories

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Operation - TestTroubleshootingAdjustmentsOther information

Loader / Section 1

Lift and lowering functionOperate all the loader functions to maximum travel.Check that everything is functioning normally and thatthere are no oil leaks.See the following section if anything does not functionnormally:

■ Troubleshooting to locate faults■ Adjustments■ Other information for additional details■ Instruction manual for a description

of the function

Float positionCheck that the float position is locked in the positionby moving the lever past the lowering position. Asmall resistance must be overcome before engagingthe float position.

If the locked position cannot be reached, see■ Adjustment of float position■ Instruction manual

SafeLockCheck that the lever can be locked with theSafeLock function. Check that the loader doesnot begin to drop when SafeLock is in the lockedposition.

If SafeLock does not function, see■ Adjustment of SafeLock■ Instruction manual

Loader operation - Test

200 N(20 kg)

Implement latchCheck the locking mechanism by moving the leverback and forth. The lever has an interlock positionthat is overcome by pushing the lever backwards.It is important for this resistance to be present to pre-vent the lock from being opened unintentionally.

If the latch requires adjustment, see■ Adjustments■ Instruction manual

Implement connection and disconnectionCheck that the implement can be connectedand disconnected easily. If it is not possible toconnect the implement, check the connectionhooks of the implement and the implement frame.

For connection and disconnection, see■ Instruction manual, pages 11-12

Loader connection and disconnectionCheck that the loader can be connected anddisconnected readily, and that the loader can belocked easily with the locking pins. If the loader doesnot assume a position in which the locking pin canbe easily inserted, check that the paint has beenremoved from the contact surfaces.

For connection and disconnection of the loader, see■ Instruction manual, pages 15-19

Loader operation - Test

Troubleshooting, loader

SymptomLoader dropsCheck tolerances forinternal leakage for theloader valve.(See section 8)

Location of faultExternal leakage( lift rams )

Internal leakage( lift rams )

Internal leakage( control valve )

Possible faultsExternal leakage in liftrams.Internal leakage in liftrams.Leakage via seal on nonreturn valve.Leakage via seal on plugin connection a1.Leakage via spool inloader valve.

RemedyIn the case of visibleleakage, replace the sealkit. Also check that nomechanical damage ispresent on the internalparts of the ram.

If the loader stops drop-ping, replace the seal kit.Also check that no me-chanical damage ispresent on the internalparts of the ram.

In the case of visiblefaults in the o-rings in thenon return valve and theplug, replace the seals.If the loader continues todrop, replace the controlvalve.

Visual inspection

Move the loader to itsmaximum lift height.Then move the lever to its neutral position.

Check the o-rings onthe non return valvefor the lift spool.Check the o-ring onplug a1.


SymptomImplement dropsCheck toleraces forinternal leakage for theloader valve.( See section 8 )

Location of faultExternal leakage in im-plement rams

Internal leakage in imple-ment rams

Possible faultsExternal leakage in im-plement rams.Internal leakage in imple-ment rams.Leakage in shock valve(210 bar).Internal leakagein 3rd or 4th functionvalve.Leakage via seal in nonreturn valve.Leakage via seal on plugb2.

RemedyIn the case of visibleleakage, replace the sealkit. Also check that nomechanical damage ispresent on the internalparts of the ram.

If the implement stopsdropping, see Internalleakage in control valve.If the implement contin-ues to drop, the fault liesin the implement rams,shock valve (210) bar,AutoSafe valve, if fitted,or in the 3rd or 4th func-tions, if fitted.

Visual inspection

Lift the loader with aload in the implementand with the hoses forthe implement functiondisconnected at thecontrol valve.Connections A2 and B2.

SymptomInternal leakage inshock valve

Internal leakage in3rd/4th function

Internal leakage incontrol valve

Possible faultsIf the implement stopsdropping, replace the210 bar shock valve. Ifthe implement continuesto drop and no extrahydraulic functions areinstalled,replace the seal kit in theimplement ram. Alsocheck that no mechanicaldamage is present on theinternal parts of the ram

If the implement stopsdropping, replace thecomplete valve.

In the case of visiblefaults in the o-rings in thenon return valve and theplug, replace the seals.If the loader continues todrop, replace the controlvalve.


Visual inspectionReverse the positionof the shock valves onthe cross member.

Bypass the 3rd/4thfunction valve. Use 2 x3/8”x3/8” adapters.

Check the o-rings on thenon return valve for thelift spool.Check the o-ring onplug b2.

LIFT / TILT Non return valves

Tractors hp 45-80 60-100 75-150 90-150 90-260 kW 33-59 44-74 55-110 66-110 66-192Loader model 3.10c 3.20 3.40 3.60 3.65 4.60 4.80 4.85 5.80

H1 Lift height to pivot point (m) 3,15 3,55 3,55 3,75 3,90 3,70 4,00 4,20 3,85H2 Lift height under level implement (m) 2,95 3,30 3,30 3,50 3,70 3,50 3,75 3,95 3,60

Lift capacity at pivot point at 185 bar oil pressureL1a - at ground level (kg) 2100 1800 2200 2200 2100 2400 2800 2500 2650L3a - max. height (kg) 1300 1350 1900 1950 1800 1950 2300 2150 2200

Lift capacity, 750 mm from pivot point at 185 bar oil pressureL1 - at ground level (kg) 1650 1600 1900 2000 1800 2100 2500 2200 2400L2 - at 1.5 m height (kg) 1400 1250 1600 1800 1650 1850 2250 2050 2200L3 - max. height (kg) 1200 1100 1500 1600 1600 1700 2050 1900 1950

Max tear-out force 750 mm from pivot point 1700 1900 2600 2600 2600 3350 3350 3350 2800B1 crowd anglel SMS/W -frame 35/39 41/45 41/45 41/45 41/45 41/45 42/46 43/47 39/43B2 crowd angle SMS/W -frame 42/46 50/54 50/54 50/54 50/54 50/54 50/54 50/54 56/62T1 dump angle SMS/W -frame 56/62 59/55 59/55 59/55 55/51 55/51 54/50 48/44 56/52T2 dump angle SMS/W -frame 86/82 94/90 94/90 94/90 94/90 99/95 99/95 99/95 84/78

bar


SymptomLift function weak

Location of fault causeMeasure the system pres-sure with a pressuregauge between the lifthose and the controlvalve.

Possible faultsIf the lifting capacity istoo low, this could bedue to excessively lowhydraulic pressure.

RemedyIf the sound of fluid trans-fer is heard, replace therelief valve. If no sound isheard, or if no reliefvalve is fitted, the hy-draulic system of thetractor must be checkedby an appointed work-shop.

Check specification

At a low value, listen toestablish whether therelief valve in the loader’scontrol valve is blowing.

Lift capacity, 750 mm from pivot point at 185 bL1 - at ground level (kg) 1650L2 - at 1.5 m height (kg) 1400L3 - max. height (kg) 1200


SymptomImplement function is toweak

Location of fault causePerform the same inspec-tion as for a weak liftingfunction

Location of fault causeSlow loader

Possible faultsIf the tear out force is toolow, this will be due toexcessively low hydraulicpressure

RemedyIf the measured pressureis in accordance with thespecification, move thepressure gauge to thecrowd feed hose. If thepressure is lower, replacethe 210 bar shock valveon the cross member.

Possible faultsIf the loader is slow, thiswill be due to a low oilflow.

Check specification

Check the specificationand measure the timewith the oil at its operat-ing temperature.

Tractors hp 45-80 60-100 75-150 90-150 90-260 kW 33-59 44-74 55-110 66-110 66-192Loader model 3.10c 3.20 3.40 3.60 3.65 4.60 4.80 4.85 5.80

H1 Lift height to pivot point (m) 3,15 3,55 3,55 3,75 3,90 3,70 4,00 4,20 3,85H2 Lift height under level implement (m) 2,95 3,30 3,30 3,50 3,70 3,50 3,75 3,95 3,60

Lift capacity at pivot point at 185 bar oil pressureL1a - at ground level (kg) 2100 1800 2200 2200 2100 2400 2800 2500 2650L3a - max. height (kg) 1300 1350 1900 1950 1800 1950 2300 2150 2200

Lift capacity, 750 mm from pivot point at 185 bar oil pressureL1 - at ground level (kg) 1650 1600 1900 2000 1800 2100 2500 2200 2400L2 - at 1.5 m height (kg) 1400 1250 1600 1800 1650 1850 2250 2050 2200L3 - max. height (kg) 1200 1100 1500 1600 1600 1700 2050 1900 1950

Max tear-out force 750 mm from pivot point 1700 1900 2600 2600 2600 3350 3350 3350 2800B1 crowd anglel SMS/W -frame 35/39 41/45 41/45 41/45 41/45 41/45 42/46 43/47 39/43B2 crowd angle SMS/W -frame 42/46 50/54 50/54 50/54 50/54 50/54 50/54 50/54 56/62T1 dump angle SMS/W -frame 56/62 59/55 59/55 59/55 55/51 55/51 54/50 48/44 56/52T2 dump angle SMS/W -frame 86/82 94/90 94/90 94/90 94/90 99/95 99/95 99/95 84/78

Max tear-out force 750 mm from pivot point 1700B1 crowd anglel SMS/W -frame 35/39B2 crowd angle SMS/W -frame 42/46T1 dump angle SMS/W -frame 56/62T2 dump angle SMS/W -frame 86/82

Loader Lifting time Working times at a pump2.10-3.10-3.10c-3.20 5.0 sec. capacity of 40 l/min1.50-2.20-2.40 6.5 sec.3.40-3.55-3.60-3.65 6.5 sec.4.60 8.0 sec.2.70-4.70-4.75-4.80-4.85 8.5 sec.5.80 9.0 sec.

Loader Dumping witt full Dumping from paralleltravel of bucket position

2.10-3.20 2 sec. 1 sec.3.40-3.65 2.5 sec. 1.5 sec.4.60-4.85-5.80 3 sec. 2 sec.


Location of fault causeCheck the quick-couplings and the returnline.

If no visible problem canbe identified, check thehydraulic flow of thetractor with a flow meter.

Fault symptomLift or implement functiondips slightly before liftingduring operation.

Location of fault causeDisconnect the non returnvalve for the function thatdips.

Fault symptomSingle-lever control isdifficult to operate.

Possible faultsIf a constriction is lo-cated, replace the defec-tive component.

If the flow is low, the faultmust be must be cor-rected by an appointedworkshop.

Possible faultsLeak in non return valve.

RemedyClean and test. If thefault remains, replacethe non return valve.

RemedyClean and lubricate.

Check whether the cableis trapped or is installedwith an excessively smallradius.

Remove the cable coverand operate the spoolmanually. If it is heavy,remove the spool andclean. If any mechanicaldamage is evident, re-place the complete con-trol valve.

LIFT / TILT Non return valves

Possible faultsLack of lubrication.

Cable seized.

Spool seized incontrol valve.

Adjustment ofFloat position and SafeLock

Float position, RMT 90 valveThe allen screws (1) holding the adjust-ment caps on the loader valve must beremoved to allow adjustment of theloader float position (4 mm allen key).Rotate the adjusting cap (2) to adjustthe position of the lever.N.B. To achieve an efficient function forthe float position, the single-lever mustbe adjusted slightly backwards in rela-tion to the lever housing. Fasten theadjusting cap with the screws (1) onceadjustment is complete.

Float position, Walvoil valveThe allen screws (16) must be releaseda few turns (4 mm allen key) to permitadjustment of the loader’s float position.Rotate the adjusting cap (15) to changethe position of the lever.N.B. To achieve an efficient function forthe float position, the single-lever mustbe adjusted slightly backwards in rela-tion to the lever housing. Fasten theadjusting cap with the screws (16) onceadjustment is complete.

SafeLockMove the locking mechanism (3) to thelocked position. If it cannot be locked,move the control lever forwards untilthe lock engages.N.B. The loader must not beginto drop in this position. The floatingposition must be re-adjusted if theloader begins to drop.

Min 400

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16

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ELC / Section 2

Operation - Test ELC

Before calibration.See Adjustments.

See General instructions.In the event of functionaldisorder. See Trouble-shooting.

Check that the joystick iscorrectly adjusted.Check the proportionalitybetween the joystick andthe loader valve.

Check that the float posi-tion and the 3rd and 4thfunctions can be acti-vated and de-activated.

Troubleshooting, ELC

ProblemLoader functions fail.Lights on the joystickcannot be activated.

Loader functions fail.Lights for the 3rd and4th functions and thefloat position cannot beactivated.

Slow loader functions.

3rd and/or 4th func-tions fail.

Float position fails.

RemedyCheck the power supply tothe joystick. Repair as nec-essary.Replace the joystick if thepower supply is correct.

Check and repair the powersupply (wiring) between thejoystick and the loader servovalve.Check and adjust the servopressure. 15-20 bar.

Check and adjust the servopressure. 15-20 bar.Re-adjust the joystick.

Check and repair the powersupply between the joystickand the connector for the3rd and 4th function. Seealso Troubleshooting– 3rd and 4th functions.

Check and repair the powersupply to the float positionsolenoid.

Test and replace, if required.Remove and clean the servovalve. Test. Replace the sole-noid valve, if required.

Check the return connection.This must be pressure-freeand it may not be connectedto other return lines.

Re-adjust the joystick.

CauseElectrical fault

Electrical fault

Low servo pressure.(RMT 90 valve only)

Low servo pressure.(RMT 90 valve only)Incorrectly adjustedjoystick

Electrical fault

Electrical fault(RMT 90 valve only)

Faulty solenoidFaulty solenoid valve(RMT 90 valve only)

Incorrect connectionof return hose forelectrical servo(RMT 90 valve only)

Incorrectly adjustedjoystick

ADJUSTMENT INSTRUCTIONS

Programming of 3rd and 4th functions

1. Activate the ELC main switch on the instrument panel.2. Press down the switch on the joystick and turn on the ignition.3. Release the switch after approx 1 second, after which one or more of the

lamps will light up.4. Find the alternative that you need in the table below. Move through the alter-

natives by pressing the switch repeatedly until one or more lamps light upindicating your selection. Only one selection at a time can be programmed.

5. Acknowledge your choice by holding down the switch until the lamp/lamps goout. Note. A green lamp will light if alternative 2 is selected.

6. “Ready for use” and the selected alternative will now be displayed until an-other selection is made.

O = lamp extinguished = lamp lit

Programming

Alternative Function

Yellow Green RedLamp Lamp Lamp

3rd or 4th

loader function

3rd loader function only(on – off). Float positioncan be used.

3rd loader function onlyor 3rd and external 4th

function simultaneously.

3rd loader function only(on-off). Float positioncannot be used

Alt: 1

Alt: 2

Alt: 3

Alt: 4

O

O

OO

OO

OPERATING INSTRUCTIONS

3rd and 4th functions and float position

Activated lamp lights

Yellow Green Redlamp lamp lamp

Alt 1

Alt 2

Alt 3

De-activation takes place by repeating the same procedure as for activation.

Note! When the loader is not being used in tractor work the main switch on theinstrument panel should be deactivated to prevent accidents.

Activation and operation

3rd function: Hold down the switch, and movethe lever to the right until the green lamp lights.Release the switch, and move the lever to theneutral position. The 3rd function can now beoperated with a tilting movement of the joystick.4th function: Hold down the switch, and movethe lever to the left until the yellow lamp lights.Release the switch, and move the lever to theneutral position. The 4th function can now beoperated with a tilting movement of the joystick.

3rd function: can be operated with a tilting move-ment of the joystick when the switch is helddown. Note: Trima bale handler.

3rd function: Hold down the switch, and movethe lever to the right, and then move the lever tothe left, until the green lamp lights. Release theswitch, and move the lever to the neutral posi-tion. The 3rd function can now be operated witha tilting movement of the joystick.External 4th function together with 3rd function:Hold down the switch, and move the lever to theright until the yellow and green lamps light up.Release the switch, and move the lever to theneutral position. The implement function can nowbe operated with a tilting movement of the joy-stick. Note: Trima V- plough

Connecting float position:Press down the switch on the joystick and pullback the lever until the red lamp begins to flash.The floating position is now programmed so thatit goes “in” when the lever is moved forwards toits full extent, and “out” when the lever is movedbackwards. The lamp remains lit when the floatposition is “in”.

ADJUSTMENT INSTRUCTIONS ELC No 1Valid for joystick 431 835 with production numbers from 00-18-XX. Manufacturing sign, see joystick bottom.The adjustment of proportionality between joystick and loader valve shall only bedone if necessary and with warmed up oil. Basic joystick adjustments are made atTrima.NOTE! When adjusting, always observe loader movements.

Starting position (must always be performed):1. Hold down the joystick switch, activate the

ELC main switch, start the tractor.2. Release the switch when all the lamps

light up. (After approx 3 seconds thelamps will begin to flash, after 3 secondsmore the lamps will show a steady light).The yellow lamp will now begin flashing.

3. Maintain the engine speed at ca. 1000-1300 rpm (hand throttle). Use a lowerengine speed for a larger hydraulic pump.

Adjustment of lifting function:4a. The yellow lamp must flash rapidly.

Start position lift.Pull the lever slowly backwards until thelifting function begins to react (1), thenslowly allow the lever to return to the posi-tion at which the function stops (2), not tothe neutral position.

Hold the lever still in that position. Pushdown the switch, wait until all the lampslight. Release the switch. Release the leverto neutral position.

4b. The yellow lamp must flash slowly.Max position lift.Pull the lever slowly backwards to theposition in which the lifting function has itsmaximum speed and hold the lever still inthat position.Push down the switch, wait until all thelamps light, and release the switch. Re-lease the lever to neutral position.

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2.

ADJUSTMENT INSTRUCTIONS ELC No 1cont´d

Adjustment of lowering function:5a. The green lamp must flash rapidly.

Start position lowering.Push the lever slowly forwards until thelowering function begins to react (1),thenslowly allow the lever to return to theposition at which the function stops, notto the neutral position.

Hold the lever still in that position. Pushdown the switch, wait until all thelamps light, and release the switch.Release the lever to neutral position.

5b. The green lamp must flash slowly.Max position lowering.Push the lever slowly forwards to theposition in which the lowering functionhas its maximum speed and hold thelever still in that position.

Push down the switch, wait until all thelamps light, and release the switch.Release the lever to neutral position.

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2.


Adjustment of tilt function:6a. The yellow lamp must flash rapidly, and

the red lamp must remain lit.Start position tilt.Move the lever slowly to the right untilthe tilt function begins to react (1), thenslowly allow the lever to return to theposition at which the function stops, (2)not to the neutral position. Hold the leverstill in that position.


6b. The yellow lamp must flash slowly, andthe red lamp must remain lit.Max position tilt.Move the lever slowly to the right to theposition in which the tilt function has itsmaximum speed and hold the lever stillin that position.


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2.


Adjustment of crowd function:7a. The green lamp must flash rapidly, and

the red lamp must remain lit.Start position crowd.Move the lever slowly to the left until thecrowd function begins to react (1), thenslowly allow the lever to return to theposition at which the function stops (2),not to the neutral position. Hold the leverstill in that position.Push down the switch, wait until all thelamps light, and release the switch.Release the lever to neutral position

7b. The green lamp must flash slowly, andthe red lamp must remain lit.Max position crowd.Move the lever slowly to the left to theposition in which the crowd function hasits maximum speed and hold the leverstill in that position.Push down the switch, wait until all thelamps light, and release the switch.Release the lever to neutral position.

The yellow lamp will now begin to flashrapidly, at the same time as the red lampis extinguished. Finish with confirmation.

Confirmation position (must always beperformed):8. Hold the joystick lever in the neutral

position. Push down the switch, waituntil all the lamps light up, and releasethe switch.The ELC is now ready for use. Test andreadjust if required.

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2.

Note 1. Each adjustment phase may be performed separately, but must be pre-ceded by “Starting position” and terminated with “Confirmation posi-tion”. Switching between adjustment phases can take place by pressingthe joystick button repeatedly in neutral position.

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FLD 1000 / Section 3

Functional testing - FLD 1000Check that the tractorcan be raised when therelief valve is open, andthat the tractor is slowlylowered when the controllever is moved to theneutral position.

Check that the tractorremains in the raisedposition when the reliefvalve is closed and thecontrol lever is moved tothe neutral position.

Check that the suspen-sion system works whenthe relief valve and theaccumulators are acti-vated.

In the event of functionaldisorder.See Troubleshooting.

Troubleshooting, FLD 1000SymtomLoader feels solid.

Loader feels dead withthe accumulators open.

Loader feels solid with the press valve open.

Possible faultAccumulators closed.

Relief valve closed.

Accumulator fault.

Relief valve fault.

RemedyOpen the accumulatorshut-off tap.Open the relief valve.

Close the press valve.Rock the loader. If theloader is solid, replacethe accumulators.

Raise the front end of thetractor with the loader.The tractor must drop tothe ground when thesingle-lever control re-turns to the neutral posi-tion. If not, replace therelief valve.

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AutoSafe / Section 4

Functional testing - AutoSafeCheck the function of theAutoSafe.Activate the switch andcrowd the implementframe, the locking pinswill open.De-activate the switchand crowd the implementframe, the lockingpins will lock.

See instruction manualpage 13.


Troubleshooting - AutoSafe

ProblemLocking pins seek to engagefrom the opened, activatedposition if the implementframe is tilted forwardagainst the mechanical stop.

Locking seeks to engagefrom the activated positionwhen the singlelever controlreturns to the neutral posi-tion after opening.Or:Locking seeks to engagefrom the open position whenthe implement frame is tiltedforwards.

Locking will not open duringactivation and operation.

Locking will not open duringactivation (new installation).

CauseNormal

Internal leakage inthe locking cylinder.

No power supply tothe switch.No power supplyfrom the switch.Defective solenoid.

Defective electricallyactuated valve.As above.

As above.

Hoses wrongly con-nected to the C andD unions of theAutoSafe valve.

RemedyNone

Fit new seals to the cylin-der (seal kit 420 079).Check that there is nomechanical damage toconstituent parts of thecylinder.

Check the 8 Amp fuse.

Check the wiring.

Test and replace thesolenoid if defective.Clean and test. Replacethe electrically actuatedvalve if defective.

As above.

Reconnect hoses C and D.

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3:rd – 4th function / Section 5

Functional testing - 3rd and 4th functionCheck that the 3rd and/or the 4th function oper-ate when the switch isactivated. When in use,the respective functionwill be controlled via theimplement function of theloader. The implementframe must not move when these functions areused.


Troubleshooting 3rd – 4th functionSymtom3rd or 4th functiondoes not operate.

Possible faultElectrical fault.

Defective solenoid.

Spool seized in valve.

Spool seized after in-spection and cleaning.

RemedyCheck the fuse and thecable to and from theswitch.

Test the solenoid with ametal tool to determinewhether it becomes mag-netic on activation. If not,replace the solenoid.

Remove and clean.

Replace the valve.

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TMD / Section 6

Functional testing - TMD

Check that the lockingmechanism for the lock-ing handle is not seized.Check that the TMD canbe opened and closedwithout resistance. Checkfor oil leaks in any cou-pling component.


Troubleshooting – TMD

ProblemTMD leaks whenconnected. Oilexits from one ormore of the drainholes.

TMD still leaksafter implementa-tion of theabove remedy.

TMD still leaksafter implementa-tion of theabove remedy.

TMD leaks whenconnected underpressure. Oil exitsfrom one or moreof the drain holes.

TMD leaks in themobile part(loader part) afterdisconnection.

TMD leaks in thefixed part (tractorpart) after discon-nection.

RemedyReplace seal “N” inthe male coupling inthe mobile part(loader part). Test.

Replace femalecoupling “L” in thefixed part (tractorpart). Test.

Check lever “D” andits attachment. Re-place the lever ifnecessary. Test.

Replace seal “N” inthe male coupling inthe mobile part. Test.

Replace coupling“L” if necessary.

Replace coupling“M” if necessary.

Check lever “D” andits attachment. Re-place the lever ifnecessary. Test.

Replace seal “N” inthe male coupling inthe mobile part. Test.

Replace coupling“M” if necessary.

Replace coupling“L” if necessary.

CauseLeaking seal inmale coupling.

Leaking seal infemale coupling.

Deformed lever.

Leaking seal inmale coupling.

Worn femalecoupling.

Worn male cou-pling.

Deformed lever.

Leaking seal inmale coupling.

Worn male cou-pling.

Worn femalecoupling.

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TCC / Section 7

Functional testing - TCC

Check that the clutch isdisconnected when anyof the TCC’s switches areactivated.Check all the switches.Also check that the footbrake connection (ifpresent) functionscorrectly.Check this when acti-vated and de-activated.Check that the linkageposition for the clutch iscorrectly adjusted.

In the event of functionaldisorder.See Troubleshooting.See Linkage positionadjustment

Troubleshooting and operator’s instructions – TCCFunctional faults in conjunction with new assembly.

ProblemClutch pedal does not godown.

Clutch pedal does not godown fully.

Clutch “grabs” or slips.

CauseElectrical fault.

Drain valve open.(Applicable only to accu-mulator system).

Incorrect assembly.

Low pedal pressure.

Incorrect bite position.

RemedyCheck the electrical in-stallation.

Close the drain valve.

Check the length ofstroke of the cylinder(max 50 mm).

Adjust the pedal pres-sure.

Adjust the bite position.

Troubleshooting and operator’s instructions – TCCFunctional disorder after a period of use.

ProblemClutch pedal does not godown.

Clutch pedal does not godown fully.

Clutch pedal does not godown after stopping theengine. (Accumulatormodel).

CauseElectrical fault.

Low pedal pressure.

Accumulator fault.

RemedyCheck the fuse and elec-trical lines.

Check the pressure andadjust if necessary.

Replace the accumulator.

Operator’s instructions1. The TCC is activated via electrical switches positioned on the gear levers.2. The TCC is activated via the brake pedal.3. Electrical switches on the gear levers are convenient during transport driving,

which completely relieves the load on the left leg.4. Disengagement via the foot brake is more appropriate in conjunction with

loader operation and inching. The foot brake function is engaged via a switchconveniently positioned on the instrument panel. With the foot brake functionactivated, the tractor is automatically disengaged during braking, and en-gaged again when the brake is released.

When inching, the TCC is activated by depressing the brake pedal, when disen-gagement takes place automatically. The pressure on the brake pedal is then re-leased, and the brake pedal is depressed once more when the tractor begins tomove. it is possible to inch in this way by alternately depressing and releasing thebrake pedal. By closing the needle valve progressively, the tractor will move pro-gressively more slowly.

Note that the foot brake function must not be connected during transport driv-ing.

TCC – ADJUSTMENT OF THE BITE POSITION

1) Run the tractor until the oil reaches workingtemperature.

2) Stop the engine. Remove the outer sleeve on theadjusting rod (No5)

3) Turn the adjusting rod inwards until 10 mm isvisable.

4) Close the needle valve ( No 6 ). Start the engine.

5) Disengage the clutch using one of the TCCswitches.

6) Engage 1st gear and increase engine speed to1400 rpm using the hand throttle.

7) Release the handbrake.

8) Release the TCC switch to allow the clutch pedalto move upwards.

9) Adjust the rod No3 outwards until you feel therear wheels begin to turn.

Important! Engage the handbrake, and stop theengine when this adjustment is being carried out.

10) Opening the needle valve at this point will allowthe pedal to move and engage drive smoothly.

11) In the event of not obtaining the correct biteadjustment, repeat steps 4,5,6,7,8 and 9.

12) Close the needle valve.

13) Disengage the clutch using one of the TCC switches.

14) Release the TCC switch.

15) Stop the engine, and engage the handbrake.

16) Fit the outer sleeve back onto the adjusting rod.

17) The bite position is now set correctly.

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General hydraulics / Section 8

Walvoil- and Nordhydraulik RMT 90 loader valveChecking for internal leakage

Hydraulic valves returned as defective by dealers are often found to be free offaults when checked by the valve manufacturer. The customer has frequently com-plained that the loader sinks abnormally fast. The table below contains approxi-mate tolerances to help service personnel gain some indication of what measure-ments may be regarded as lying within the tolerances when a “diagnosis” is to bemade.

Warm up the tractor so that the hydraulic oil reaches its working temperature.Connect a pressure gauge to the function to be checked. Fill the bucket (or otherimplement) until a pressure of ca. 100 bar (kp/cm3) at rest can be read on thepressure gauge. Raise the loader a little and stop the tractor engine. Measure onthe piston rod the number of millimetres per minute by which the loader/imple-ment sinks.

Continue to measure for a period of 10 minutes to obtain a more accurate reading.

Loader Implement cylinder Lifting cylindermm/min mm/min

730-930-590-790 1,5 1,01.10

820-890-912-1020 1,0 1,01090

1220-1320-1290 1,0 1,02.10-3.10-3.10C-3.20

1190-1420-1390-1490 1,0 0,51495-1.50-2.20-2.403.40-3.50-3.55

1520-1620-1640-1590 1,0 0,51690-1790-1820-18402.65-2.70-3.60-3.654.60-4.70-4.75

1890-2.80-4.80-4.85 1,0 0,55.80

WALVOIL LOADER VALVEThe four hydraulic systems most commonlyfitted to agricultural tractors

SERIES-CONNECTEDOPEN CENTRE SYSTEMWhen the system is series-connectedand the loader valve is not connectedlast in the tractor’s hydraulic system,three hoses must always be connectedto the loader valve: one pump hose,one tank hose and one series hose. Thevalve is of the open-centre model(recirculation pumping) and must beequipped with a carry over adaptor430 280; Item 4. It can also beequipped with or without a pressurerelief valve, Item 3, depending onwhere the valve is connected in thesystem.

SERIES-CONNECTEDOPEN CENTRE SYSTEMWhen the system is series-connectedand the loader valve is connected lastin the tractor’s hydraulic system, or ifthe loader valve is connected to a sepa-rate system (front pump), two hosesmust be connected to the loader valve:one pump hose and one tank hose. Thevalve is of the open-centre model andmust be equipped with a plug 435 150in the series outlet, Item 6, and a plug430 281 where the pressure relief valveis normally installed; Item 5.NOTE. For a front pump installation, thevalve must be equipped with a pressurerelief valve 430 279.

3

TP

4

Traktorventil

Pumpe

6

P T

5

Pumpe

Pump

Pump

Tractor´s valve

CONSTANT-PRESSURE SYSTEMWhen the system is of the constant-pressure type (old JD model), the loadervalve is not connected last in the trac-tor’s hydraulic system. Two hoses areconnected to the loader valve; onepump hose and one tank hose.The valve is of the open-centre modeland must be equipped with a plug 430281 in the connection in which a pres-sure relief valve is normally installed;Item 7. The valve must also beequipped with plug 435 285. Item 8.

LOAD-SENSING SYSTEMWhen the system is load-sensing, theloader valve can be connected at anypoint in the tractor’s hydraulic system.Three hoses are connected to the loadervalve: one pump hose, one tank hoseand one signal hose. The valve is of theclosed-centre model (not recirculationpumping).Note. This valve must not be used inany other hydraulic system.

Note. The electrical servo models of thistype of valve are equipped with identi-cal hydraulic components to the above-mentioned hydraulic systems.

TP

8

7

Pumpe

PT

LS

Pumpe

WALVOIL LOADER VALVEThe four hydraulic systems most commonlyfitted to agricultural tractors

Pump

Pump

RMT 90 LOADER VALVEThe four hydraulic systems most commonlyfitted to agricultural tractors

SERIES-CONNECTEDOPEN CENTRE SYSTEMWhen the system is series-connected,the loader valve is not connected last inthe tractor’s hydraulic system. Threehoses are always connected to theloader valve: one pump hose, one tankhose and one series hose. The valve isof the open-centre model (recirculationpumping) and must be equipped with acarry over adaptor (various);Item 4. It can also be equipped with orwithout a pressure relief valve (vari-ous), Item 3, depending on where thevalve is connected in the system.

SERIES-CONNECTEDOPEN CENTRE SYSTEMWhen the system is series-connectedand the loader valve is connected lastin the tractor’s hydraulic system, or ifthe loader valve is connected to a sepa-rate system (front pump), two hosesmust be connected to the loader valve:one pump hose and one tank hose. Thevalve is of the open-centre model andmust be equipped with a plug 435 150in the series outlet, Item 6, and a plug435 148 where the pressure relief valveis normally installed; Item 5.NOTE. For a front pump installation, thevalve must be equipped with a pressurerelief valve 435 145.

3

TP

4

Traktorventil

Pumpe

6

P T

5

Pumpe

Pump

Pump

Tractor´s valve

CONSTANT-PRESSURE SYSTEMWhen the system is of the constant-pressure type (old JD model), the loadervalve is not connected last in the trac-tor’s hydraulic system. Two hoses areconnected to the loader valve; onepump hose and one reservoir hose.The valve is of the open-centre modeland must be equipped with a plug 435148 in the connection in which a pres-sure relief valve is normally installed;Item 7. The valve must also beequipped with a plug 435 184 in theseries outlet; Item 8.

LOAD-SENSING SYSTEMWhen the system is load-sensing, theloader valve can be connected at anypoint in the tractor’s hydraulic system.Three hoses are connected to the loadervalve: one pump hose, one tank hoseand one signal hose. The valve is of theclosed-centre model (not circulationpumping).Note. This valve must not be used inany other hydraulic system.

TP

8

7

Pumpe

PT

LS

LSLS

Pumpe

RMT 90 LOADER VALVEThe four hydraulic systems most commonlyfitted to agricultural tractors

Pump

Pump

General attachments / Section 9

General points relating to attachments

Remove the paint from all contact surfaces on the side frames and the tractorbody.

Offer up the mounting brackets and fit all the bolts before finally tightening them.Check that the c/c dimension is correct. Standard attachment 842 +/- 5 mm, andwide attachment 1042 +/- 5 mm.

IMPORTANT:Remove paint atthese points. C/C 842+-5 (1042+-5)mm

All the bolts must be retightened after ca. 10 hours’ operation, and subse-quently at every service.

General points relating to attachments

CHECK THE FOLLOWING POINTS AFTER FINAL ASSEMBLY:

■ In the case of an opening wind screen, check that the loader doesnot touch the front screen in its raised position.

■ Check that the front wheels do not make contact with the attach-ment at full oscillation and at full lock. Restrict the movement, ifnecessary.

■ Contact between the lift cylinder and the wing/tyre is not serious,since this situation rarely/never occurs during normal operation.

■ The following table shows the recommended tightening torquesfor the various dimensions of bolt that we use.

M 8.8 10.9 12.9

14 128 Nm 181 Nm 217 Nm16 197 Nm 277 Nm 333 Nm18 275 Nm 386 Nm 463 Nm20 385 Nm 541 Nm 649 Nm22 518 Nm 728 Nm 874 Nm24 665 Nm 935 Nm 1120 Nm

Evaluation of weld quality / Section 10

Evaluation of welds

If a weld has a cold flow for ca. 5-7 cm around thecross member on the lift arm, an indication of fracturecan occur during normal use of loader. The lifting armwill then become twisted due to this welding fault. Insuch cases, the sides of the arms will be straight inspite of the weld having failed on the cross member =warrnaty claim.

If, on the other hand, the weld appears sound in spiteof the indication of fracture, and if the lifting arm istwisted (sloping bucket), the straightness of the armmust be checked. If one side has collapsed down-wards and forwards away from the cross member,the loader has been abused = warranty does notapply.

Once an evaluation has been made on the basis ofthe above, and it has been decided to invoke thewarranty as a result, the defective section of the liftarm (arm cross member) must be removed by cuttingand returned to us together with the warranty claimfor our own inspection and evaluation.

“Cold weld” = Unacceptable

Correct weld

Evaluation template for twisted loader/ Section 11

Troubleshooting template for warped loader

1) Place a 1 m straight-edge on the top surface ofthe lift arm at the point where the cross member iswelded in place, taking care to ensure that noforeign bodies are present. Check both halves ofthe arm. If a gap can be seen on either side be-neath the straight-edge, and if the other side isgood, this indicates that an impact has occurred.A visual defect of this kind is usually accompaniedby cracking of the paint on the welds around thecross member. 99% of such warranty claims arerejected. N.B. the paint and surface coating onsheet steel may give way under severe normalloading around welds, allowing rust to form, al-though this does not necessarily mean that thewelds have fractured.

2) Climb up onto a front tyre. Look down betweenthe triangulated links which hold the p-linkageand the implement ram. Assess by eye whetherthe front half of the arm is deflected to the left orright. Check both sides. If one side appears to bedeformed more than the other, it can be expectedthat 99% of warranty claims will be rejected.

Troubleshooting template for warped loader

3) Position the implement frame so that it is plumb.Raise the loader to eye level. Stand in front of theloader and align the upper part of the implementframe with the lower part or upper part of thecross member (whichever is easier to see). If thevisible lines are not level, this indicates that one orother of the front parts of the arm sides has beenbent downwards. Warranty claim rejection rate:99%.

4) Raise the loader to eye level. Stand to one side ofthe loader, and look at the sides of the lifting arm,which must lie parallel with one another. If this isnot the case, it may be due to cold weldingaround the cross member, which in turn hascaused the weld to fracture, with twisting as aresult. Cold welding occurs when the weld hastaken on only one of the weld materials. This is amanufacturing defect.

Instruction manual /Section 12

Claims under warranty / Section 13

Trima accessories / Section 14

Documents

TRIMA Service Manual