Lifting Arms
409
Keyless Locking Devices
The H
ELPING
-H
AND
™ arm utilizes keyless locking devices to retain certain pins. Proper inspection
and maintenance procedures are essential for trouble-free operation of these arms. The procedures
outlined below will cover the proper inspection, disassembly and assembly procedures.
During the daily arm inspection, pay particular attention to the pins. The pins should not move and
should be centered equally between both keyless locking devices. If any movement has been
detected, the keyless locking device should be disassembled and inspected for wear or damage.
The illustration below shows the location of the keyless locking devices on the H
ELPING
-H
AND
™ arm.
Figure 10
-
46 Keyless locking devices on H
ELPING
-H
AND
™ arm
The disassembly and assembly procedures differ some depending on the part number you are
working with. Refer to the correct procedure and specifications listed in the table below.
Here are some important notes to remember for all applications:
Do not use any oil with Molybdenum Bisulphide, high pressure additives, or grease.
These substances notably reduce the coefficient of friction.
Do not use an impact wrench or power tools to loosen or tighten any of the tightening screws.
Use a torque wrench to verify tightening torque value on each screw.
Labrie P/N Bolt Torque (Qty x Size) Bore Diameter
Pin
Diameter
Page
QUB00495
13 ft-lbs (8 x M6)
2.362" - 2.364"
1.250"
See page 410
QUB00498
30 ft-lbs (8 x M8)
3.150" - 3.152"
2.000"
See page 412
Содержание EXPERT
Страница 1: ...EXPERT TM MAINTENANCE MANUAL...
Страница 2: ......
Страница 3: ...EXPERT MAINTENANCE MANUAL...
Страница 10: ...viii Table of Contents...
Страница 18: ...8 Introduction...
Страница 244: ...234 General Maintenance...
Страница 251: ...Lubrication 241 Figure 4 11 Glass compartment lubrication chart optional...
Страница 252: ...242 Lubrication Figure 4 12 EXPERT lubrication chart...
Страница 261: ...Lubrication 251 Figure 4 27 Packer lubrication points 2 Grease fitting LH side front cylinder pin...
Страница 263: ...Lubrication 253 Pump Drive Shaft U Joint Figure 4 30 Pump drive shaft lubrication points Grease fittings...
Страница 264: ...254 Lubrication...
Страница 320: ...310 Hydraulic System...
Страница 357: ...Troubleshooting 349...
Страница 358: ...350 Troubleshooting...
Страница 386: ...378 Multiplexing...
Страница 388: ...380 Lifting Arms Figure 10 1 Mounting bolts Figure 10 2 Wear pads Figure 10 3 Helping Hand gripper...