Serving the lift industry since 1996 Applications and Layout Data · 2020. 11. 3. · VG Range of Safety Gears Version 3.0 2 General Information VG safety gears consist of a pair

Serving the lift industry since 1996

Operation and Installation Manual

Serving the lift industry since 1996

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Applications and Layout Datafor the VG Range of Safety Gears

Version 3.0

Applications and Layout Datafor the VG Range of Safety Gears

Version 3.0

1 Atwell International Limited

Contents General Information ..................................................................................................... 2

Guidance Notes ............................................................................................................. 3

Over-speed governors

Governor rope attachment

Inertia spring

Guide rails

Carbide inserts

Rail lubricant

Ascending Car Upward Protection

Design Features ...........................................................................................................7

Accessory kits ..............................................................................................................8

Illustrations and Data Sheets

Figure TD1.0 Outline Data - VG Safety Gears .................................................. 10

Figure TD1.01 Maximum Rated Mass (P+Q) ..................................................... 11

Figure TD1.1 Standard Equipment - Kits SK1 and SK7 .................................... 12

Figure TD1.1 S2 Standard Equipment - Kits SK1 and SK7 .................................... 13

Figure TD1.2 Inertia Bracket Assembly - Kit SK2 ............................................. 14

Figure TD1.2 S2 Inertia Bracket Assembly - Kit SK2 ............................................. 15

Figure TD1.3 Auxiliary Inertia Spring Kit SK3 ................................................... 16

Figure TD1.4 Dual acting safety gears - indirect connection ......................... 17

Figure TD1.4 S2 Dual acting safety gears - indirect connection ......................... 18

Figure TD1.4.1 Duplex dual acting safety gears - indirect connection ............. 19

Figure TD1.4.1 S2 Duplex dual acting safety gears - indirect connection ............. 20

Figure TD1.4.2 Duplex dual acting safety gear - indirect connection .............. 21

Figure TD1.4.2 S2 Duplex dual acting safety gear - indirect connection .............. 22

Figure TD1.5 Duplex Operation - Kit SK5 ......................................................... 23

Figure TD1.6 Dual acting safety gear - direct connection .............................. 24

Figure TD1.7 VG-5 Bi-directional safety gear .................................................. 25

Figure TD1.7.1 VG5 with bi-directional Kit SK10 ................................................ 26

Figure TD1.7.1 S2 VG5 with bi-directional Kit SK10 ................................................ 27

Figure TD1.7.2 Combined safety gears .............................................................. 28

Figure TD1.8 Special Duplexed Four guide rail lift ......................................... 29

Figure TD1.8.1 Special Four guide rail lift general layout .................................. 30

Figure TD1.8.4 Special Four guide rail lift general layout .................................. 31

Figure TD1.9 Friction type Governor Forces ................................................... 32

Figure TD1.9.6 Governor and safety gear forces with KITSK10 ......................... 33

Figure TD1.10.1 Kit SK10 for combined VG-2a and VG-6 safety gears ................ 34

Figure TD1.10.1 S2 Kit SK10 for combined VG-2a and VG-6 safety gears ................ 35

Figure TD1.10.3 Kit SK10 with dual acting safety gears ....................................... 36

Figure TD1.10.3 S2 Kit SK10 with dual acting safety gears ....................................... 37

Figure TD2.8 Tripping Speed Versus Breaking Distance ................................. 38

Figure TD7.2 Tripping Speed versus Braking Distance - Year 2011 ................ 39

Figure TD8.3 VG8 Down Acting Safety Gear .................................................... 40

Figure TD8.4 VG8 Bi-Directional Acting Safety Gear ...................................... 41

Figure TD8.5 VG8 Bi-Directional Acting Safety Gear ...................................... 42

Safety Gears Special Projects ..................................................................................... 43

Solutions Using VG Safety Equipment ........................................................................ 44

EN81-20/50:2014 (Compliance) .................................................................................. 45

VG Range of Safety Gears Version 3.0 2

General Information VG safety gears consist of a pair of end assemblies which can bolt directly to the buffer channels or car frame. However, the top plate of the safety gear must be supported by an intermediate mounting plate if the distance between the car frame supports is too great. The maximum unsupported distance and the principal dimensions of the VG range are shown in Figure TD1.0. All channels and/or support plates must extend the full depth of the safety gear top plate (see figure TD 1.7.2)

Each end assembly has two spring loaded linkage mechanisms which carry and engage the gripping elements. The linkage mechanisms are designed to centralise the safety gear when it is engaged. This feature, in conjunction with large running clearances, means that VG safety gears can be used with spring loaded roller guide shoes, sliding shoes or solid rollers.

The force needed to operate a pair of downward acting safety gear end assemblies is approximately 30 Newtons (disregarding the force of any torsion springs fitted) and several pairs can be operated by a single over-speed governor. The actuating arm may be mounted on either side of the safety gear depending on the location of the over-speed governor. The end assemblies are connected together by a screwed rod for easy and accurate synchronisation of the end assemblies.

The force needed to release the safety gear is also very low. This enables the safety gear to be disengaged by the lift machine and not to require special lifting tackle.

The braking force is controlled by the compression of the spring stacks. These are adjusted in accordance with the certification tests carried out by BSI. Tests were carried out on guide rails with a superior surface finish as this represents the best practice in modern guide rail technology. If the safety gear is used on rails with a standard finish, or if used with a mass different from that shown on the label, the braking force may need to be adjusted on site. (See relevant installation and adjustment data)

To comply with the harmonised version of EN81, a lift must prevent “uncontrolled upward movement”. As all VG safety gears can be inverted to brake in the upward direction, code compliance can be obtained by fitting separate “upward acting” safety gear in tandem with a standard “downward acting” safety. This additional safety can either be attached directly to the downward acting safety gear or mounted separately on top of the crown channels. The VG range of safety gears can also be used as the braking means and as a complete solution to EN81-20/50:2014 when used in conjunction with the VG Overspeed Governor.

The VG-5 safety gear is bi-directional safety gear and has two independent braking mechanisms within a common housing. Both bi-directional and “combined” safety gears can be operated from a single friction type, bi-directional over-speed governor.

VG-2a, VG-5 and VG-6 safety gears have a common footprint and mounting dimensions. The VG-4 has a narrower footprint more suited to smaller lifts. The VG-4 can be fitted with an extended shaft to match the rest of the VG range.

2.1 Over-speed governors

VG safety gears can be operated by either “friction“or “drop-jaw” type overspeed governors. However, when bi-directional operation is required, either a bi-directional VG governor or friction governor capable of operating in both directions is required.

These governors have different operating characteristics which must be considered when deciding on which type of governor is best suited for a specific application. The preferred option is to fit a VG governor as this is technically superior to friction types.

Regardless of which type of governor is fitted, EN81 requires that it must generate twice the force needed to engage the safety gear. This must include the force needed to centralise the lift car prior to engaging the safety gear plus the inertia spring force.

Guidance Notes


Guidance Notes 2.1.1 Friction Governors

These governors can operate in both directions and hence can be used to detect an over-speed in either the “up” or “down” directions. They operate by locking the governor wheel using a latch which engages when the governor reaches a specific speed. The force generated by the governor will depend on:-

1. The governor rope tension. This is controlled by the tension weight, the size of the governor rope and the length of travel. (refer to section TD1.9 for design formulae)

2. The travel of the lift car. As stated above, this can become a major factor in the governor force generated in both directions of travel.

3. The groove profile of the governor. Normally these are “V” grooves.

4. The rope speed over the governor wheel. The higher the speed, the lower the force generated by the governor. However, manufacturers do not produce any data for this reduction.

5. The direction of travel. The governor generates a much higher force in the “down” direction than in the “up” direction. (refer to section TD1.9 for design formulae)

Despite the above, friction governors are very popular because of their low-cost and bi-directional properties. However, they will reset following a safety gear test if there is counterweight “bounce” after the lift car has come to rest. In turn, the safety gear can be released thereby permitting the car to start downwards again if the machine brake is held open.

Counterweight “bounce” will occur if the car deceleration is too severe or the

overall compliance of the lift installation is too soft.

However, it should be noted:-This cannot happen under the “free fall” conditions which both safety gears and governors have been tested and certified.

2.1.2 VG Drop Jaw Governor

This governor uses digital technology for speed measurement and has a built-in control system for detecting uncontrolled movement and overspeed in the “up” direction. When triggered, a drop-weight is released which operates a linkage system to clamp the governor rope between spring loaded jaws. The governor force generated depends on:-

1. The spring force in the clamping jaws. Four compression springs are fitted as standard but these can be increased to six if required.

2. The speed of the rope passing through the gripping elements. As with a friction type, the higher the speed, the lower the force generated. Use is made of the speed versus friction coefficient given in EN81 to determine the minimum braking force.

3. The groove profile of the gripping elements. The standard groove is semi-circular with a 50% undercut. The undercut can be increased to either 63% or 75% to increase the braking force.

As the gripping force does not depend on the governor rope tension, a lighter tension weight can be used than on friction type governors. However, this must have an integral lock-down mechanism to react the force generated in the “up” direction.

Regardless of any car or counterweight “bounce”, a drop-jaw governor will keep the safety gear fully engaged after it has operated.

Drop jaw type governors are considered more reliable and are the preferred option over friction types.


Guidance Notes 2.2 Governor Rope Attachment

The total movement of the actuating arm to fully engage a VG safety gear is 44 mm. The first 30 mm brings the jaws into contact with the guide rail and braking commences during the final 14 mm.

The governor rope can be attached either directly to the actuating arm or indirectly via an anchorage bracket bolted to the car frame as per accessory kits SK2 and SK10.

a) If the governor rope is attached directly to the actuating arm, the maximum force from the governor must not exceed 300 Newtons. If the force is greater than 300 Newtons, then accessory kit SK3, or similar device, must be fitted to avoid damage to the actuating arm. (data sheet TD1.3)

b) The preferred governor connection is via accessory kits SK2 or SK10. (see data sheets TD1.2 and TD1.10) These have been designed to operate with governors producing a force between 300 and 600 Newtons (maximum 900 Newtons) and to limit the vertical movement to 44 mm.

As the force produced in the “down” direction by a friction governor is nominally five times that in the “up” direction, these accessories may need strengthening if double acting safety gears are used. If a customer prefers a friction governor, stronger versions of the kits are available to special order.

However, the accessories are ideally suited for the VG digital governor as this produces the same force in both “up” and “down” directions.

2.3 Inertia Springs

To ensure the safety gear does not operate during normal lift service, a force is required to overcome the governor rope system inertia. This force is normally provided either by an “inertia spring” fitted to the safety gear or by a “bomb release” mechanism. For a bi-directional safety gear, two inertia springs will be required, one for the up direction and one for the down direction.

The governor must generate sufficient force to:-

a) Overcome the inertia springs

b) Centralise the safety gear against any lateral force Lx

c) Move the connecting linkage and accessory kits

d) Lift the gripping elements into contact with the guide rail.

According to EN81, the minimum force generated must be twice the sum of all these elements.

a) Inertia springs - Torsion springs are included as standard across the entire VG range to act as “inertia springs” and biasing springs when brake units are inverted for upward operation. Two strengths of spring can be fitted depending on the application.

Two light springs are recommended when a safety gear is used in the “up” direction and one on a “down” acting safety gear. These will produce a force of 100 Newtons in both up and down directions and hence are suitable for lift travels up to 40 metres.

These springs can be augmented by auxiliary inertia springs kits SK2 and SK3 can be fitted to increase the maximum lift travels up to 100 metres.

b) When used with roller guide shoes which may permit the lift car to “float”, the governor will have to overcome any lateral force Lx generated by a car imbalance.

c) The mass of the connecting linkages used in various accessory kits must be taken into account. This will increase the force needed to engage a “down” safety gear but reduce the force needed in the “up” direction.


Guidance Notes d) The force needed to engage a “down” safety gear is approximately 15 Newtons per end assembly. The force to engage in the “up” direction is minus 15 Newtons when it is inverted. This force is deducted from the inertia spring force.

When duplexing VG safety gears, it may be necessary to reduce the number of torsion springs fitted to each end assembly. These can either be removed or left in place but disengaged.

A spread sheet program (4.3.1) is available for checking code compliance (by Atwell International) of different combinations of inertia springs and accessory kits.

2.4 Guide Rail Type

VG safety gears were type-tested using class one rails from SAVERA having with a super-brushed finish. These rails have a lower friction coefficient than standard machined guide rails. However, all VG safety gears can be used with rails having a coarser surface finish. To compensate for different surface finishes, the braking force can easily be adjusted on site should this prove to be necessary.

If the safety gears are to be used on existing guide rails, these may have become work-hardened and/or have developed a hard oxide coating. Under these conditions, it may be necessary to increase the clamping force to enable the carbide inserts to break through any hard surface.

2.5 Carbide Toothed Inserts

All current models of VG safety gears use a common carbide toothed insert. On both dry and lubricated guides, these have demonstrated a consistency of braking force and superior wear characteristics to conventional gib materials.

The inserts brake by a combination of sliding friction and shearing as the teeth grip the guide rail. The teeth produce 8 shallow grooves some 0.15 mm deep by 0.25 mm wide in the rail surface. Guided by the gib stabilisers, these grooves remain parallel to the rail front edge and can be easily dressed smooth using emery paper.

These grooves do not detract from the performance of either sliding or rolling guide shoes or reduce the braking force of VG safety gears.

The minimum life expectancy of a VG safety gear is 10 full-load, full-speed drop tests. However, it is recommended that after each safety gear test the inserts are inspected for any signs of damage or wear.

During a public demonstration at the Augsburg International Lift Exhibition in 2007, a VG-4 safety gear was drop-tested repeatedly at 2 m/sec over the same section of guide rail. After 150 tests, the grooves had increased to only 0.4 mm deep and there was no loss of braking force. After testing was discontinued, both the guide rail and inserts were still serviceable.

2.6 Guide Rail Lubricant

VG safety gears have been certified using different lubricants to determine their sensitivity to different types of rail lubricant. These include a mineral oil to ISO grade 68, an extreme pressure gear oil and a 15-50 multi-grade engine oil. Tests have also been carried out using other oils and greases on a hydraulic test rig with different braking materials.

As a result of these tests it has been confirmed that VG safety gears are insensitive to the grade of oil used. Furthermore, there is no significant braking difference between lubricated and non-lubricated guide rails.

A reduction of up to 25% of the braking force may be encountered when the carbide inserts operate on high alloy steels lubricated with grease. Consequently, a down-rating of the braking capacity of the safety gears must be allowed for when used on special applications involving high alloy steels lubricated using grease.


Guidance Notes 2.7 Ascending Car Over-speed Protection

All VG safety gears can be inverted to operate in either the “up” or “down” directions. To comply with EN81, a lift manufacturer can choose either:-

a) Separate Safety gears

One safety gear is used to brake in the “up” direction and an additional and separate safety gear used to brake in the “down” direction. The safety gears can either be combined in tandem below the lift car or alternatively, mounted separately with the “upward” braking safety gear fitted to the crown channels.

Examples of the different methods of combining “up” and “down” safety gears are illustrated in figures TD1.4 to TD1.6. Examples of safety gears mounted in tandem below the lift car are illustrated in figures TD1.10.1 and TD1.10.2.

The preferred arrangement is to have the “downward” safety gear mounted below the car and the “upward” acting mounted onto the crown channels. Mounted in this way, the safety gears are inherently stable and the loads imposed on the holding down bolts are low.

When combining safety gears below the lift car it is recommended that the flanges of the buffer channels be strengthened by fitting an adapter plate between the buffer channels and the safety gear. This is suitable for a maximum (P+Q) of 4500 kg. At higher loads, additional bracing will need to be incorporated and technical assistance from Atwell International must be obtained.

b) Bi-directional safety gear

The VG-5 is a bi-directional safety gear and is illustrated in Figures TD1.7 and TD1.7.1. Essentially it combines two braking elements within a common housing. One mechanism is designed to brake in the “up” direction and the other in the “down” direction. Normally the VG5 should only be fitted below the lift car. If required to be mounted above the lift car, technical assistance from Atwell International must be obtained.

It is recommended that the VG-5 is mounted onto an intermediate adapter plate as per TD1.7.2 in order to strengthen the flanges on the buffer channels.

Regardless of whether separate safety gears or a bi-directional unit is used, the Braking Force needed in the “up” direction is substantially less than that required in the “down” direction. The braking force required to decelerate a lift car at 0.5g in the “up” direction is approximately half that required in the “down” direction. All bi-directional and combined safety gears are adjusted to generate 50% braking force in the up direction.

Both separate and bi-directional safety gears can be operated by a single friction type governor. However, to generate sufficient force in the up direction, the mass of the governor rope tension weight may need to be increased. Furthermore, it should be fitted with a “lockdown” device to prevent it losing tension. A lock-down kit for attachment to a standard tension weight is available. See accessory kit SK8.

2.7A Duplexing VG safety gears

VG safety gears were designed to stack together or “duplexed”. This could be in the form two “down” units (TD1.4.1/2) or one “up” and one “down” (TD1.10.1/2).

When two “down” brake units are duplexed, the total number of torsion springs fitted must be checked using the spread sheet program TD-4.3.1 (Atwell International). Furthermore, additional bracing may be required to ensure stability of the two brake units in both planes. (see TD1.5)


2.8 Environmental Protection

VG safety gears have been designed to operate in a benign environment and exposed to temperate climatic conditions. Consequently, environmental protection is achieved by zinc plating to a commercial standard, chemical blacking or by painting.

Should the safety gear be required to operate under more severe climatic conditions, then special finishes may be required and these are available to special order. All special operating environments should be brought to the attention of Atwell International.

1. 6 mm running clearance both sides - suitable for roller guide shoes or sliding shoes

2. Certified for both lubricated and dry rails on class one guide rails.

3. All single models can be duplexed to double their braking capacity.

4. VG safety gears can be inverted to prevent “upward falling”. Either tandem mounted or separately mounted.

5. Special “dual acting” safety gear for upward and downward protection.

6. “See through” design for ease of inspection and maintenance.

7. Surface mounted for ease of design and installation.

8. Large running clearances between safety gear frame and guide fixings

9. Simple and accurate braking force adjustment to suit on-site conditions.

10. Rail widths 9 to 19 mm as standard - other widths to special order

11. Special configurations accommodated by means of accessory kits

12. Low operating force – up to 8 end assemblies can be operated by a single friction type governor.

13. Technical support by Atwell International.

14. Non-handed and universal design

15. Low release force after engagement

16. Common mounting across complete VG range.

17. Common spares on critical components across range.

The VG range was re-certified in 2013 and in 2018 to the latest EN81 requirements:

a) To harmonise the maximum governor tripping speed across the range. All VG safety gears with toothed inserts can now operate at a maximum governor tripping speed of 5m/sec*.

b) To restrict the disc spring compression to 75% of its maximum value. This will permit harmonisation of the load ratings between the ANSI and EN81 codes.

c) To allow different values of (P+Q) at different governor tripping speeds. The entire range can now benefit from the enhanced braking effect at lower operating speeds.

d) To have common values of (P+Q) for lubricated and non-lubricated guide rails. The previous minor rating differences between lubricated and non-lubricated guide rails have been eliminated.

The revised “down” ratings for the range are shown in the table on the next page. *except for the VG8

Guidance Notes

Design Features


The modular nature of the VG range means that several different mounting arrange-ments are possible by selecting from a range of accessory kits. The following is a list of the kits currently available. The diagrams show typical assemblies using standard kits.

Atwell International can provide technical assistance to lift manufacturers on special applications. For example, figure TD1.8 illustrates a special car lift arrangement on a four guide system. This required double-duplexed VG safety gears in the down direction and single VG safety gears in the up direction.

SK1 Standard Operating Kit - Figure TD1.1

This kit comprises of the actuating arm, transfer arms and clevis assemblies needed to operate a standard downward acting safety gear. It should be noted that the connecting rod between pairs of safety gears and the actuating rod is normally supplied by the car manufacturer but can be supplied to special order.

SK2 Inertia Bracket Assembly - Figure TD1.2

This is used for an indirect connection between the safety gear actuating rod and the governor rope. The position of the governor rope is offset by 61 mm from the actuating rod.

The bracket is used only with downward acting safety gears which require a car-top connection. It must be bolted to the car sling as illustrated. The assembly does not include the connecting rods or wedge sockets (kit SK9) as standard although these are available to order. The bracket has an auxilliary inertia spring to increase the maximum lift travels up to 75 metres.

SK3 Auxiliary Inertia Spring Assembly - Figure TD1.3

These are used:-

1.To balance the mass of the connecting linkages on various applications such as TD 1.4, TD 1.6 and TD 1.8.

2.To oppose the force exerted by the governor on the safety gear linkage and operating arm. This is done by adjusting the stop springs inside the spring assembly

3.To provide an auxiliary inertia force on lifts with long travels when the torsion springs may not provide a sufficiently high force.

The spring assembly bolts directly to the safety gear as illustrated in TD1.3. There are two versions of this kit. The standard version SK3 is suitable for all safety gears fitted with normal length connecting shafts. (refer to dimension “C” in figure TD1.0) However, safety gear VG-4 can be fitted with an extended shaft to enable it to work with the VG-2a for upward movements. The kit for this is SK3E.

Notes: 1 The above (P+Q) loads are nominal values. These can be exceeded by a maximum value of 7.5% as permitted in EN81. 2 The above values of (P+Q) can be doubled when a safety gear is being used as an upward acting brake. 3 Duplexing of VG safety gears has been verified under drop test conditions to double the above ratings. 4 Non-standard rail widths (greater or smaller than 16 mm) are available to special order. 5 Safety gears can be used on guide rails other than Savera Class one. This may require some on-site adjustment to the braking force.

Design Features

Accessory Kits

Governor Speed

m/sec

Maximum Value of (P+Q) kg

VG-2a

VG-5

VG-6

VG6E

VG8

0.5

3850

2800

5600

5600

2789

1.0

3530

2630

5250

5500

1.5

3275

2490

4980

5260

2668

2.0

3010

2350

4690

5100

2546

2.5

2770

2210

4420

4900

2.63

2425

3.0

2545

2080

4160

4700

3.5

2340

1955

3910

4500

4.0

2130

1840

3680

4320

5.0

3970


SK4 Pivot Bracket Assembly - Figure TD1.4

The pivot bracket is bolted direct to the car frame and is used to connect separate “up” and “down” safety gears requiring an indirect connection to the governor rope. The offset of 61 mm from the actuating rod is common with the inertia bracket assembly SK2. This bracket assembly can withstand a maximum governor force of 1200 Newtons.

It is recommended that the auxiliary spring kit SK3 is fitted to protect the operating linkage from being subjected to an excessive governor force.

The assembly is supplied with slotted link plates and clevises to connect top and bottom safety gears and the governor. The kit does not include the connecting rods or wedge sockets (kit SK9) as standard although these can be supplied if required.

SK5 Double stacking kit (duplexing) - Figure TD1.5

This kit is used to connect two safety gears working in tandem to double the load carrying capacity of the safety gear. Each kit comprises the additional clevises and linkages to enable the safety gears to be operated by a single governor.

When duplexing a pair of safety gears, only one standard operating kit SK1 and Switch kit SK7 will be provided for each duplexed pair.

SK6 Up-Down Connection kit - Figure TD1.6

Used to connect 2 sets of safety gears, one set fitted beneath the lift car to work in the down direction and the other mounted on the crown channels to work in the up direction. The kit includes the linkages and clevises to connect the separate “up” and “down” safety gears together. The kit does not include the connecting rod or wedge sockets (kit SK9) although these are available to special order.

It is recommended that the auxiliary spring kit SK3 is fitted to prevent the safety gear operating linkage from being subjected to an excessive governor force.

SK6C Combined Safety Linkage Kit - Figure TD 1.7

Actuating linkage for “combined” safety gears acting as bi-directional devices. Linkage kits are available for different combinations of VG safety gears.

SK7 Switch Kit

Safety switch, operating cam and fixings to connect to the safety gear. One kit is normally supplied for each set of safety gears.

SK8 Lock-down Kit

This is should be fitted to the tension weight used with all bi-directional governors to prevent it from lifting. The device is supplied with the fixing bolt to secure the unit to the tension weight but not for securing the device to the lift well or bracket structure.

SK9 Wedge Sockets

A pair of wedge sockets to suit 6-8 mm diameter governor rope.

SK10

This is a bi-directional version of kit SK2 but without an inertia spring. The kit is fitted with a balance spring to offset the mass of the connecting rod or link (provided by the lift manufacturer). The inertia spring force is provided by the torsion springs fitted as standard to VG safety gears.

The kit can be used for combined safety gears fitted below the car or with dual acting safety gears. Examples of different applications is given in Figures 1.10.1 to 1.10.3.

AK- 7 Bi-directional kit

A kit of parts for the VG-5 bi-directional safety gear. The kit includes the actuating kits, switch kits and torsion springs. The kit can also be specified for combined safety gears. These have different link plates to suit the different sizes of safety gear.

Accessory Kits


Figure TD1.0 Outline Data – VG Safety Gears – Year 2019 – Issue H

YEAR ISSUE

FIGURE NUMBER

OUTLINE DATA - VG SAFETY GEARSTD1.0

C A M E R O N D E S I G N - NORTHAMPTON ENGLAND

Wid

th

"C"

Acc

ess

ory

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s ce

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es

60

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nka

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an b

e m

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d e

ither

side

"D"

"B"

Height

Face

of

guid

e r

ail

VG

-2a

370

900 k

g

186

25

115

176

70

MIN

IMU

M M

AS

S

SA

FE

TY

GE

AR

WID

TH

FIX

ING

CE

NT

RE

S

DIM

"A"

DIM

"B"

DIM

"C"

HE

IGH

T

SLO

T L

EN

GT

H

AC

CE

SS

OR

Y C

EN

TR

ES

328

77

DIM

"D"

DIM

"E"

VG

-4

270

700 k

g

370

VG

-6

2000 k

g

VG

-5

370

850 k

g

186

186

140 41

25

25

30*

99

115

144

225

176

70

70

45

328

328

238 61

63/1

61

77

200

56/1

68

MA

X (

P+

Q)

@ 1

m/s

ec

3500 k

g1810 k

g2405 k

g5400 k

g

MA

X (

P+

Q)

@ 2

m/s

ec

MA

X (

P+

Q)

@ 3

m/s

ec

3000 k

g1639 k

g2145 k

g4660 k

g

2550 k

g1477 k

g1900 k

g4000 k

g

RE

FE

R T

O D

AT

AS

HE

ET

TD

1.0

1

FO

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ULL L

OA

DS

PE

ED

EN

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125

100

100

Note

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pro

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pla

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etw

een

safe

ty g

ear

and c

ar

fram

e.

Max

dim

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on "

E"

120

26

5

Ext

end c

hannels

and

any

support

pla

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ofr

ont

face

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Figure TD1.1 Standard Equipment - Kits SK1 and SK7 - Year 2000 - Issue B

AC

TUAT

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RO

D B

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MA

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Figure TD1.1 Standard Equipment - Kits SK1 and SK7 - Year 2000 - Issue B – sheet 2


Figure TD1.2 Inertia Bracket Assembly - Kit SK2 - Year 2004 - Issue D

43150

AC

TUAT

ING

RO

D T

HRE

AD

ED M

12 x

35

MIN

BO

TH E

ND

S

2 H

OLE

S 11

DIA

BRA

CK

ET C

AN

BE

ROTA

TED

61

100

DIMENSION TO SUIT CAR DESIGN

SWIT

CH

KIT

- SK

7

4827

4 TO

GO

VER

NO

R RO

PE

213

INER

TIA

BRA

CK

ET A

SSEM

BLY

- K

IT S

K2

WED

GE

CLA

MPS

TO

DIN

153

15

61

INER

TIA

SPR

ING

76

38

TO S

UIT

6 -

8 M

M R

OPE

50

274

MO

VEM

ENT

OF

AC

TUAT

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RO

D

CO

NN

ECTI

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RO

D :

LEN

GTH

= D

BG

- 27

5 T

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AD

ED M

12 x

35

MIN

BO

TH E

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S

38/4

3

STA

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ARD

OPE

RATI

NG

KIT

- SK

1

FAC

E O

F G

UID

E RA

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GO

VER

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C

NO

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IS A

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USE

S TH

E FO

LLO

WIN

G K

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MA

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1 O

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- SK1

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CH K

IT

- SK7AC

CESS

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KIT

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1 PA

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IA W

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SK9

OPE

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(45/

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ET A

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AR

MA

NU

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BY C

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MA

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40 N

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900

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INER

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SPR

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BA

LL

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L T

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BU

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2 6

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NO

.

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SU

E N

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ISS

UE

NO

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DA

TE

.

R

EV

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N.

INIT

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SH

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T

O

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DO

NO

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CA

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DR

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:

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L:

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l:

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S

K-i

Kit

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ra

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Gu

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ra

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ar.

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ca

r.

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Sa

fety

SK

-7 K

it

Go

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rno

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pe

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ge

cla

mp

SK

-9

Kit

We

dg

e c

lam

p S

K-9

K

it

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rtia

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cke

t A

ssy.

SK

-2

Kit

Gu

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ra

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Go

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rno

r ro

pe

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id b

racke

t s

up

plie

d

& f

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by lift

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JA

E

2

DT

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INE

RT

IA B

RK

T A

SS

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17

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01

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2

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te.

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is a

pp

lica

tio

n u

se

s t

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fo

llow

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kits.

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e o

ff x

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nd

ard

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tin

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it

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ne

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afe

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witch

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Figure TD1.2 Inertia Bracket Assembly - Kit SK2 - Year 2004 - Issue D – sheet 2


Figure TD1.3 Auxiliary Inertia Spring Kit SK3 - Year 2009 - Issue DYEAR ISSUE

FIGURE NUMBER

TD1.3

NO

TE

TH

IS A

PP

LIC

AT

ION

US

ES

TH

E F

OLLO

WIN

G K

ITS

AC

TU

AT

ING

RO

D

1 O

FF

ST

AN

DA

RD

OP

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AT

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- S

K1

1 O

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TY

SW

ITC

H K

IT -

SK

7

BY

CA

R M

AN

UF

AC

TU

RE

RB

Y C

AR

MA

NU

FA

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UR

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OR

SP

EC

IAL O

RD

ER

2000 N

MA

XIM

UM

FO

RC

E

GU

IDE

SH

OE

AD

AP

TO

R P

LA

TE

Buffer

channels

SP

RIN

G A

DJU

ST

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NU

TS

ST

OP

NU

TS

SW

ITC

H K

IT -

SK

7

ST

AN

DA

RD

OP

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AT

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- S

K1

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IA S

PR

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KIT

- S

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38 T

O 4

3

AC

TU

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213

RO

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UID

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213

IF T

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OR

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XC

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DS

2000 N

EW

TO

NS

EN

HA

NC

ED

SK

1 A

ND

SK

3 K

ITS

SH

OU

LD

BE

FIT

TE

D

TH

ES

E C

AN

WIT

HS

TA

ND

A G

OV

ER

NO

R F

OR

CE

OF

6000 N

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1 O

FF

AU

XIL

IAR

Y S

PR

ING

KIT

- S

K3

2009 D


AUXILIARY SPRING ASSEMBLY


Figure TD1.4 Dual acting safety gears - indirect connection - Year 2010 - Issue EYEAR ISSUE

FIGURE NUMBER

CROWN CHANNELS

DUAL ACTING SAFETY GEARS - INDIRECT CONNECTIONTD1.4

1200 Newtons Maximum

ACCESSORY KIT SK9

C A M E R O N D E S I G N NORTHAMPTON ENGLAND

THIS APPLICATION USES THE FOLLOWING KITS

2 0FF STANDARD OPERATING KITS - SK1

I OFF PIVOT BRACKET ASSEMBLY - SK42 OFF SWITCH KIT - SK71 OFF WEDGE CLAMP KIT - SK9

2 OFF INERTIA SPRING KITS - SK3

AN ALTERNATIVE ARRANGEMENT FOR DUAL SAFETY GEARSIS TO USE ACCESSORY KIT SK10 - SEE SECTION TD-1.10.3

234

Guide shoe adaptor plate

50

GOVERNOR ROPE

274

213

200

WEDGE CLAMPS TO DIN 15315

2010 E

Buffer channels

PROVIDED BY CAR MANUFACTURER OR SPECIAL ORDER

140 Newtons TO OPERATE

"DOWNWARD" ACTING SAFETY GEAR


"UPWARD" ACTING SAFETY GEAR

CONNECTING ROD BETWEEN UPPER AND LOWER SAFETY GEARS

LINKAGE STOP NUTS

SK3 KIT USED AS LINKAGE BALACING SPRING

SPRING ADJUSTING NUTS

PIVOT BRACKET ASSEMBLY - SK4

4 OFF M12 CLEVIS ASSY

SUPPLIED WITH KIT SK4

STANDARD OPERATING KIT SK1

USE SK3 KIT WITHOUT SPRINGADJSUST STOP NUTS ONLY

2 TORSION SPRINGS REQUIRED PER END UNIT

STANDARD END UNITSFITTED WITH ONE TORSION SPRING

1200 Newtons Maximum


Figure TD1.4 Dual acting safety gears - indirect connection - Year 2010 - Issue E – sheet 2

2E

2

Se

e s

he

et 1

of 2

fo

r d

ime

nsio

n in

form

atio

n.

DU

AL

AC

TIN

G S

AF

ET

Y G

EA

RS

- IN

DIR

EC

T C

ON

NE

CT

ION

.

TD

- 1

.4

VG

SA

FE

TY

VG

SA

FE

TY

GE

AR

SK

-9 K

IT

GE

AR

Piv

ot b

racke

t a

ssy -

SK

-4

SK

-3 K

IT U

SE

D A

S L

INK

AG

E B

AL

AN

CIN

G S

PR

ING

SK

-1 K

ITS

K-1

KIT

Co

nn

ectin

gro

d.

JA

E

VG

SA

FE

TY

18

MA

Y 2

01

1

US

E S

K-3

KIT

WIT

HO

UT

SP

RIN

G

SK

-1 K

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A

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ST

ST

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ON

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AR

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UID

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-1 K

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AR

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LL

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L T

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NA

TIO

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L L

TD

HA

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2 6

PD

DE

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TIO

N:

DR

AW

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NO

.

IS

SU

E N

O.

ISS

UE

NO

.

DA

TE

.

R

EV

ISIO

N.

INIT

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.

SH

EE

T

O

F

DO

NO

T S

CA

LE

DR

AW

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.

FIN

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:

MA

TE

RIA

L:

Te

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5 6

41

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1

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5 6

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29

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: w

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Em

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: i

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al.

co

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Figure TD1.4.1 Duplex Dual Acting Safety Gears - Indirect connection - Year 2010 - Issue BYEAR ISSUE

FIGURE NUMBER


DUPLEX DUAL ACTING SAFETY GEARS - INDIRECT CONNECTIONTD1.4.1

GOVERNOR FORCE

1200 NEWTONS MAXIMUM

THIS ARRANGEMENT USES THE FOLLOWING

2 OFF SWITCH KITS - SK7

1 OFF DUPLEXING KITS - SK5

1 OFF PIVOT BRACKET ASSEMBLY - SK4

2 OFF AUXILIARY INERTIA KIT - SK3

2 OFF STANDARD OPERATING KITS - SK1

1 OFF WEDGE CLAMP KIT - SK9

2010 B

GOVERNOR ROPE


ACCESSORY KIT - SK9

234 TO CLEAR LINKAGES

274

213 rod centres

45 mm TRAVEL UP AND DOWN



200

50

M12 CLEVIS

PIVOT BRACKET ASSEMBLY - SK4

DUPLEXING KIT - SK5


LINKAGE STOP NUTS

KIT SK3 USED AS LINKAGE BALANCING SPRING

FIT ONLY ONE TORSION

SPRING EACH END. FIT

TO LOWER SET.

2 TORSION SPRINGS REQUIRED

ON EACH END UNIT



USE SK-3 KIT WITHOUT AUXILIARY SPRING

ADJUST LINKAGE STOP NUTS ONLY

ADDITIONAL BRACING IF REQUIRED.

SEE DATA SHEET TD 1.5


Figure TD1.4.1 Duplex Dual Acting Safety Gears - Indirect connection - Year 2010 - Issue B – sheet 2

2

SE

E S

HE

ET

1 O

F 2

FO

R D

IME

NS

ION

IN

FO

RM

AT

ION

D

UP

LE

X D

UA

L A

CT

ING

SA

FE

TY

GE

AR

S -

IN

DIR

EC

T C

ON

NE

CT

ION

.

JA

E1

8 M

AY

20

11

B

2

SK

-3 K

IT U

SE

D A

S L

INK

AG

EB

AL

AN

CE

SP

RIN

G.

TD

- 1

.4.1

DU

PL

EX

ING

KIT

SK

-5

RE

AR

VIE

W

rod

.C

on

ne

ctin

g

SK

-3 K

ITW

ith

ou

t b

ala

nce

sp

rin

gA

dju

st sto

p n

uts

on

ly.

Co

nn

ectin

gro

d.

BA

LL

MIL

L T

OP

BU

SIN

ES

S P

AR

K

AT

WE

LL I

NT

ER

NA

TIO

NA

L L

TD

HA

LL

OW

WO

RC

ES

TE

R

WR

2 6

PD

DE

SC

RIP

TIO

N:

DR

AW

ING

NO

.

IS

SU

E N

O.

ISS

UE

NO

.

DA

TE

.

R

EV

ISIO

N.

INIT

IAL

.

SH

EE

T

O

F

DO

NO

T S

CA

LE

DR

AW

ING

.

FIN

ISH

:

MA

TE

RIA

L:

Te

l:

01

90

5 6

41

88

1

Fa

x:

01

90

5 6

41

29

8W

eb

: w

ww

.atw

ell

inte

rna

tio

na

l.c

om

Em

ail

: i

nfo

@a

twe

llin

tern

ati

on

al.

co

m


Figure TD1.4.2 Duplex dual acting safety gears - direct connection - Year 2011 - Issue A YEAR ISSUE

FIGURE NUMBER


DUPLEX DUAL ACTING SAFETY GEARS - DIRECT CONNECTIONTD1.4.2

THIS ARRANGEMENT USES THE FOLLOWING

2 OFF SWITCH KITS - SK7

1 OFF DUPLEXING KITS - SK5

2 OFF AUXILIARY INERTIA KIT - SK3


1 OFF WEDGE CLAMP KIT - SK9

2010 A

234 TO CLEAR LINKAGES

213 rod centres



M12 CLEVIS

DUPLEXING KIT - SK5


LINKAGE STOP NUTS

KIT SK3 USED AS LINKAGE BALANCING SPRING

FIT ONLY ONE TORSION

SPRING EACH END. FIT

TO LOWER SET.

2 TORSION SPRINGS REQUIRED

ON EACH END UNIT

PULL UP TO OPERATE

PULL DOWN TO OPERATE

ADDITIONAL BRACING IF REQUIRED.

SEE DATA SHEET TD 1.5

ACCESSORY KIT SK9

3000 NEWTONS

MAXIMUM FORCE

3000 NEWTONS

MAXIMUM FORCE


LINK PLATES - KIT SK6


PROVIDED BY CAR MANUFACTURER


Figure TD1.4.2 Duplex dual acting safety gears - direct connection - Year 2011 - Issue A – sheet 2IS

SU

E N

O.

D

AT

E.

RE

VIS

ION

.

IN

ITIA

L.

BA

LL

MIL

L T

OP

BU

SIN

ES

S P

AR

K

AT

WE

LL I

NT

ER

NA

TIO

NA

L L

TD

DR

AW

ING

NO

.

IS

SU

E N

O.

DE

SC

RIP

TIO

N:

WO

RC

ES

TE

R

WR

2 6

PD

HA

LL

OW

DO

NO

T S

CA

LE

DR

AW

ING

.

FIN

ISH

:

SH

EE

T

O

F

MA

TE

RIA

L:

Te

l:

01

90

5 6

41

88

1

Fa

x:

01

90

5 6

41

29

8W

eb

: w

ww

.atw

ell

inte

rna

tio

na

l.c

om

Em

ail

: i

nfo

@a

twe

llin

tern

ati

on

al.

co

m


Figure TD1.5 Duplex Operation - Kit SK5 - Year 2011 - Issue C

YEAR ISSUE

FIGURE NUMBER

TD1.5


NO

TE

PU

RC

HA

SE

R T

O E

NS

UR

E S

AF

ET

Y G

EA

RC

LE

AR

S G

UID

E C

LIP

S, J

OIN

T P

LA

TE

BO

LT

S A

ND

GU

IDE

FIX

ING

S

NO

TE

TH

IS A

PP

LIC

AT

ION

US

ES

TH

E F

OL

LO

WIN

G K

ITS

1 O

FF

ST

AN

DA

RD

OP

ER

AT

ING

KIT

- S

K1

1 O

FF

SA

FE

TY

SW

ITC

H K

IT -

SK

71

OF

F D

UP

LE

XIN

G K

IT -

SK

5

GENERAL ARRANGEMENT - DUPLEX MOUNTING

LIN

KA

GE

TO

CO

NN

EC

T U

PP

ER

AN

D

LO

WE

R S

AF

ET

Y G

EA

RS

AT

TH

IS E

ND

IS F

ITT

ED

ON

TH

E S

IDE

RE

MO

TE

FR

OM

T

HE

OP

ER

AT

ING

AR

M

2011 C

213

DU

PL

EX

ING

LIN

KA

GE

CO

NN

EC

TIN

G L

INK

AG

E

SW

ITC

H C

AN

BE

MO

UN

TE

D E

ITH

ER

EN

D

DU

PL

EX

ING

LIN

KA

GE

ST

AN

DA

RD

OP

ER

AT

ING

KIT

- S

K1

DU

PL

EX

ING

KIT

- S

K5

AC

TU

AT

ING

RO

D

Ad

diti

on

al b

raci

ng

if r

eq

uire

dto

en

sure

sa

fety

ge

ars

are

st

ab

le in

th

is p

lan

e.

(Su

pp

lied

by

lift

ma

nu

fact

ure

r)B

uff

er

cha

nn

els

FO

RC

E T

O A

CT

UA

TE

WIT

HO

UT

T

OR

SIO

N S

PR

ING

S O

RA

CT

UA

TIN

G R

OD

IS 6

0 N

EW

TO

NS

SA

FE

TY

GE

AR

S A

RE

LO

CA

TE

D A

ND

B

OL

TE

D T

OG

ET

HE

R A

S S

HO

WN

US

ING

8 D

IA L

OC

AT

ION

PIN

S A

ND

M1

6 B

OL

TS

PR

OV

IDE

D W

ITH

DU

PL

EX

ING

KIT

SK

5


Figure TD1.6 Dual acting safety gear - direct connection - Year 2011 - Issue FYEAR ISSUE

FIGURE NUMBER

DUAL ACTING SAFETY GEARS - DIRECT CONNECTION TD1.6

NOTETHIS APPLICATION USES THE FOLLOWING KITS


1 OFF CONNECTION KIT - SK61 PAIR WEDGE CLAMPS - SK92 OFF SWITCH KITS - SK7


2 OFF INERTIA SPRING KITS - SK3

ACCESSORY KIT SK9

3000 NEWTONSMAXIMUM FORCE

CROWN CHANNELS

PULL UP TO OPERATE"DOWNWARD" ACTING SAFETY GEAR

PULL DOWN TO OPERATE"UPWARD" ACTING SAFETY GEAR

3000 NEWTONSMAXIMUM FORCE

BY CAR MANUFACTURER

234

125


M12 CLEVIS ASSY

LINK PLATES - KIT SK6


SAFETY SWITCH KIT - SK7

GUIDE SHOE ADAPTOR PLATE

Buffer channels

STANDARD OPERATING KIT - SK1

213

PROVIDED BY CAR MANUFACTURER

USE KIT - SK3 WITHOUT SPRINGADJUST STOP NUTS ONLY

SK3 KIT USED AS LINKAGEBALANCING SPRING

VG safety gears fitted with2 torsion springs per end unit

2011 F

VG safety gear fitted with 1 torsion spring per end unit

Stop nuts


Figure TD1.7 VG-5 Bi-directional safety gear - Year 2002 - Issue E

4 clevises assemblies supplied

Switch kit SK7Torsion Springs - 2 off CDS05919

Front view of safety gear Rear view of safety gear

2 OFF SWITCH KIT - SK7

6 OFF TORSION SPRING

UPWARD ACTING

100 NewtonsDOWNWARD ACTING

1 OFF LINK PLATE - SK6B

NOTE!

100 Newtons

The VG-5 is fitted with integral inertia springs as illustrated. These have been designed to

system inertia. EN-81 requires the governor to generate a minimum force of 300 Newtons.

Switch can be mounted horizontally

provide a 100 Newtons force at the operating linkage. This force is used to overcome governor

1 off CDS05920

The integral inertia springs are suitable for lift travels up to 40 metres

2 OFF OPERATING KIT - SK1 (4 clevises)

SUPPLIED OPERATING KIT AK7 for VG-5

2 off CDS05919

1 off CDS05920

YEAR ISSUE

FIGURE NUMBER

TD1.7


VG-5 BI-DIRECTIONAL SAFETY GEAR

Front view of safety gear Rear view of safety gear

2 OFF SWITCH KIT - SK7

6 OFF TORSION SPRING

UPWARD ACTING

100 NewtonsDOWNWARD ACTING

1 OFF LINK PLATE - SK6B100 Newtons

Switch can be mounted horizontally 1 off CDS05920

2 OFF OPERATING KIT - SK1 (4 clevises)

OPERATING KIT AK7 for VG-5

2002 E

Switch kit SK7

4 clevises assemblies supplied

Torsion Springs - 2 off CDS05919

NOTE!

The VG-5 is fitted with integral inertia springs as illustrated. These have been designed to

system inertia. EN-81 requires the governor to generate a minimum force of 300 Newtons.provide a 100 Newtons force at the operating linkage. This force is used to overcome governor

The integral inertia springs are suitable for lift travels up to 50 metres when used with kit SK10


Figure TD1.7.1 VG5 with bi-directional Kit SK10 - Year 2004 - Issue D


YEAR ISSUE

FIGURE NUMBER

TD-1.7.1

MAXIMUM GOVERNOR FORCE

Refer to data sheet TD-SK10

Accessory kit SK9 (Other sizes available)

LENGTH OF CONNECTING LINK MUSTBE ADJUSTED SO THAT THE BRACKETHAS 44 mm OF TRAVEL IN BOTH DIRECTIONS

Wedge sockets not drawn

Supplied with kit SK10

ACCESSORY KITS REQUIRED

2 OFF SWITCH KITS SK72 OFF STANDARD OPERATING KITS SK11 0FF ROPE SOCKET KIT SK91 OFF BI-DIRECTIONAL KIT SK10

KIT SK10 WITH BI-DIRECTIONAL SAFETY GEAR VG-5

1 OFF LINK PLATE CDS10059

2 OFF M12 Nyloc nuts2 OFF M12 x 30 Hex Head Screws

2004 D

900 NEWTONS

305 R

ef

Connecting link by lift manufacture

Bracket can be rotated Wedge clamps to DIN 15315

To suit 6 - 8 mm diameter rope

Accessory kit SK-10

44

44

61

Adaptor plate (see TD1.7.2)

Switch kit SK7

150

67

49

370

280

Stabiliser bracket

2 m

etr

es

max

with

out st

abili

ser

bra

cket

Clevis with kit SK1

Studding and nuts with kit SK10

50

500 M

inim

um

219

2000 M

axi

mum

Link plate CDS10059

M12 screw and nyloc nut

Connecting rods by lift manufacturer

98

40

16


Figure TD1.7.1 VG5 with bi-directional Kit SK10 - Year 2004 - Issue D – sheet 2

KIT

SK

-10

WIT

H B

I-D

IRE

CT

ION

AL

SA

FE

TY

GE

AR

VG

-5

SH

EE

T

O

F

ISS

UE

NO

.

DA

TE

.

R

EV

ISIO

N.

INIT

IAL

.

BA

LL

MIL

L T

OP

BU

SIN

ES

S P

AR

K

AT

WE

LL I

NT

ER

NA

TIO

NA

L L

TD

FIN

ISH

:

DO

NO

T S

CA

LE

DR

AW

ING

.

DE

SC

RIP

TIO

N:

DR

AW

ING

NO

.

IS

SU

E N

O.

MA

TE

RIA

L:

WO

RC

ES

TE

R

WR

2 6

PD

HA

LL

OW

Te

l:

01

90

5 6

41

88

1

Fa

x:

01

90

5 6

41

29

8W

eb

: w

ww

.atw

ell

inte

rna

tio

na

l.c

om

Em

ail

: i

nfo

@a

twe

llin

tern

ati

on

al.

co

m


Figure TD1.7.2 Combined safety gears - Year 2011 - Issue EYEAR ISSUE

FIGURE NUMBER


TD1.7.2

2 O

FF

ST

AN

DA

RD

OP

ER

AT

ING

KIT

- S

K1

CO

NN

EC

TIO

N K

IT A

K7 fo

r C

OM

BIN

ED

SA

FE

TY

GE

AR

S

2 O

FF

SW

ITC

H K

IT -

SK

71 O

FF

CO

MB

INE

D A

CT

UA

TIN

G K

IT -

SK

6C

ensu

re t

hat

an a

dapto

r pla

te 1

6 m

m t

hic

k is

fitt

ed

betw

een t

he b

uff

er

channels

and t

he s

afe

ty g

ear

When c

om

bin

ing s

afe

ty g

ears

beneath

the li

ft c

ar

SU

ITA

BLE

FO

R A

MA

XIM

UM

(P

+Q

) O

F 4

500 k

gP

LE

AS

E S

EE

K A

DV

ICE

AT

HIG

HE

R L

OA

DS

COMBINED SAFETY GEARS - BELOW LIFT CAR

RE

CO

MM

EN

DE

D D

ES

IGN

OF

AD

AP

TO

R P

LA

TE

A m

inim

um

of

4 f

ixin

gs

should

be p

rovi

ded t

o s

ecu

reth

e a

dapto

r pla

te t

o t

he b

uff

er

channels

usi

ng

M12 c

ounte

rsunk

scre

ws

as

illust

rate

d.

Additi

onal b

raci

ng

may

be r

equir

ed t

o s

tabili

se t

he e

nd u

nits

.

115

75

60

175

17 w

ide s

lots

for

safe

ty g

ear

To c

ove

r ch

annel f

langes

6 t

o 1

0 m

m c

leara

nce

Adapto

r pla

te

30

4 o

ff M

12 c

'sunk

sock

et

head s

crew

Additi

onal b

raci

ng if

required

SW

ITC

H K

IT -

SK

7

LIN

K P

LA

TE

TO

SU

IT

12.3

DIA

HO

LE

Note

s

to s

trength

en t

he c

hannel f

langes

as

per

data

sheet

TD

-2.1

2011 E

VG

-6

VG

-2a

It is

reco

mm

ended t

hat

the in

vert

ed V

G-2

a s

afe

ty g

ear

is s

trength

ened a

s per

data

sheet

TD

-2.1


Figure TD1.8 Special Four guide rail lift - Year 2011 - Issue ESPECIAL DUPLEXED - FOUR GUIDE RAIL LIFT - GENERAL LAYOUT ISSUEDATE

FIGURE NUMBER

TD1.8


LIN

KA

GE

BA

LA

NC

ING

SP

RIN

G

TO

RS

ION

BA

R A

SS

EM

BLY

BY

LIF

T M

AN

UF

AC

TU

RE

RT

OR

SIO

NA

L S

TIF

FN

ES

S T

O E

NS

UR

E A

MA

XIM

UM

LA

GO

F 3

mm

A

T A

FO

RC

E O

F 1

50 N

EW

TO

NS

ON

T

HE

LIN

KA

GE

S R

EM

OT

E F

RO

M T

HE

GO

VE

RN

OR

CO

NN

EC

TIO

N

213 r

od c

entr

es

M12 C

LE

VIS

AS

SE

MB

LY

LIN

K P

LA

TE

S -

KIT

SK

6

LIN

KA

GE

BA

LA

NC

ING

SP

RIN

G

SEE NOTE BELOW

EN

D G

OV

ER

NO

R L

OC

AT

ION

TO

SU

IT

150 to 2

00

FIT

ON

E T

OR

SIO

N S

PR

ING

TO

EA

CH

UP

PE

R B

LO

CK

LIN

KA

GE

BA

LA

NC

ING

SP

RIN

GA

DJU

ST

TO

SU

IT T

HE

M

AS

S O

F T

HE

LIN

KA

GE

S

Piv

ot bra

cket to

suit

Tors

ion b

ar

arr

angem

ent by

car

manufa

cture

r

FO

R T

HE

"D

OW

NW

AR

D"

AC

TIN

G S

AF

ET

Y G

EA

RS

TO

RS

ION

BA

R L

EN

GT

H F

OR

EN

D G

OV

ER

NO

R L

OC

AT

ION

TO

RS

ION

BA

R L

EN

GT

H F

OR

CE

NT

RA

L G

OV

ER

NO

R

SE

E D

AT

A S

HE

ET

TD

1.8

.2 F

OR

SU

GG

ES

TE

D S

IZE

S A

ND

DE

SIG

NO

F T

OR

SIO

N B

AR

AR

RA

NG

EM

EN

Tpiv

ot bra

cket by

car

manufa

cture

r

M12 S

TU

DD

ING

BY

MA

NU

FA

CT

UR

ER

RE

MO

VE

OR

DIS

CO

NN

EC

T A

LL T

OR

SIO

N S

PR

ING

SF

ITT

ED

TO

TH

E "

DO

WN

" A

CT

ING

SA

FE

TY

GE

AR

S

Duple

xing k

its h

ere

Buffer

channels

Sto

p n

uts

US

E K

IT S

K3 W

ITH

OU

T A

UX

ILIA

RY

SP

RIN

GA

DJU

ST

LIN

KA

GE

ST

OP

NU

TS

ON

LY

8 O

FF

M12 C

LE

VIS

AS

SE

MB

LY

TH

IS A

RR

AN

GE

ME

NT

US

ES

TH

E F

OLLO

WIN

G

4 O

FF

ST

AN

DA

RD

OP

ER

AT

ING

KIT

S -

SK

14 O

FF

SW

ITC

H K

ITS

- S

K7

2 O

FF

DU

PLE

XIN

G K

ITS

- S

K5

4 O

FF

LIN

K P

LA

TE

S -

KIT

SK

6

45 m

m T

RA

VE

L U

P A

ND

DO

WN

FO

R "

UP

WA

RD

" A

CT

ING

SA

FE

TY

GE

AR

S

AD

JUS

T N

UT

S O

N S

K3 K

ITS

TO

SU

IT

PU

LL D

OW

N T

O O

PE

RA

TE

- 1

50 N

EW

TO

NS

CE

NT

RA

L G

OV

ER

NO

R

PR

EF

ER

RE

D L

OC

AT

ION

PU

LL U

P T

O O

PE

RA

TE

- 1

60 N

EW

TO

NS

See d

ata

sheet fo

r duple

xing T

D-1

.5F

it addtio

nal b

raci

ng a

s re

quired

4 O

FF

AU

XIL

IAR

Y S

PR

ING

KIT

S -

SK

3

MAY 2011 E


Figure TD1.8.1 Special Four guide rail lift - General layout - Year 2011 - Issue C


Figure TD1.8.4 Special Four guide rail lift - General layout - Year 2010 - Issue A

ISSUEDATE

FIGURE NUMBER


TH

IS A

RR

AN

GE

ME

NT

US

ES

TH

E F

OLLO

WIN

G

Piv

ot bra

cket to

suit

Tors

ion b

ar

arr

angem

ent by

car

manufa

cture

rpiv

ot bra

cket by

car

manufa

cture

r

150 to 2

00

TO

RS

ION

BA

R L

EN

GT

H F

OR

EN

D G

OV

ER

NO

R L

OC

AT

ION

TO

RS

ION

BA

R L

EN

GT

H F

OR

CE

NT

RA

L G

OV

ER

NO

R

EN

D G

OV

ER

NO

R L

OC

AT

ION

SE

E D

AT

A S

HE

ET

TD

1.8

.2 F

OR

SU

GG

ES

TE

D S

IZE

S A

ND

DE

SIG

NO

F T

OR

SIO

N B

AR

AR

RA

NG

EM

EN

T

CE

NT

RA

L G

OV

ER

NO

R

PR

EF

ER

RE

D L

OC

AT

ION

214 r

od c

entr

es

TO

SU

IT

TO

RS

ION

BA

R A

SS

EM

BLY

BY

LIF

T M

AN

UF

AC

TU

RE

RT

OR

SIO

NA

L S

TIF

FN

ES

S T

O E

NS

UR

E A

MA

XIM

UM

LA

GO

F 3

mm

A

T A

FO

RC

E O

F 1

50 N

EW

TO

NS

ON

T

HE

LIN

KA

GE

S R

EM

OT

E F

RO

M T

HE

GO

VE

RN

OR

CO

NN

EC

TIO

N

M12 S

TU

DD

ING

BY

MA

NU

FA

CT

UR

ER

adjust to suit

2 O

FF

AU

XIL

IAR

Y K

ITS

- S

K3

2 O

FF

ST

AN

DA

RD

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Serving the lift industry since 1996 Applications and Layout Data · 2020. 11. 3. · VG Range of Safety Gears Version 3.0 2 General Information VG safety gears consist of a pair