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4 — MAINTENANCE
4-3
4-2 WHEEL NUT TORQUE REQUIREMENTS
It is very important to apply and maintain the correct wheel bolt torque on the boom lift
trailer. The wheel bolts must be evenly tightened to the following specified torque incre-
ments whenever a trailer wheel is removed and installed. Use the following tightening
procedure:
1. Evenly tighten the wheel bolts to 25 lb-ft (34 N
·m) in the tightening sequence
shown in Figure 4-1.
1
2
3
4
Figure 4-1. Wheel Bolt Tightening Sequence
2. Evenly tighten the wheel bolts to 60 lb-ft (81,4 N
·m) using the tightening se-
quence shown.
3. Evenly tighten the wheel bolts to 100 lb-ft (135,6 N
·m) using the tightening se-
quence shown.