UNDERCARRIAGE MLC80A-1/MLC90A-1/MLC100A-1/MLC100-1 SERVICE/MAINTENANCE MANUAL
8-8
Published 10-09-2020, Control # 259-06
INTERMEDIATE ROLLER BOLT TORQUE
See Figure 8-5.
Annually, Every 2000 Hours of Engine Operation, or
Every 250 Hours of Travel Operation, Whichever Occurs
First
1. Check the torque of the bolts (2) at each intermediate
roller (1). The bolts must be at 610 Nm (450 ft-lb) torque.
The bolts must not turn.
2. Replace ALL loose bolts with new bolts and torque as
follows:
• Clean threads with solvent/degreaser as needed
• Apply LOCTITE™ 263 to threads
• Torque bolts to 895 Nm (660 ft-lb)
CRAWLER HAND PUMP AND CYLINDER
FIGURE 8-5
Item Description
1 Intermediate Roller (qty 11 each crawler)
2 Bolt with Flat Washer (qty 4 each roller
WARNING
Hand Pump Explosion
The hand pump and cylinder is provided for crawler
adjustment only, any other use is neither intended nor
approved.
Wear safety glasses and other personal protective gear
when operating the hand pump.
Do not set the pump relief valve higher than 10,000 psi
(700 bar). Higher pressure can cause components to
explode.
The pump is not vented. It can explode if subjected to high
pressure. Do not attempt to return more oil to the pump
than it is capable of holding. Do not overfill the pump.
In some cases, the pump handle can “kickback.” Always
keep your body to side of pump, away from line of handle
force.
Do not add extensions to handle. Extensions can cause
unstable operation.
Item Description
1 Jacking Cylinder
2Hose
3 Vent Fill Cap
4Pump
5Valve
6 Jacking Handle
FIGURE 8-6
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