Boom Disassembly - JLG Lull 1044C-54 II Series Service Manual

Boom Disassembly

4-Section Boom
31200079
a. With the outriggers up, extend the boom, noting that Boom
Extension proximity light illuminates when the boom is extended to
specified distance (approximately 21 feet with tilting tower or 25
feet with standard carriage). If light does not illuminate, stop and
retract the boom. See page 6-119 for adjustment procedures.
b. Retract and lower boom to ground and shut off engine.
c. Complete proximity switch adjustment before proceeding to
Step 18.
18. Inspect hydraulic connections for leaks and tighten as necessary.
19. (Ref. Fig. 6-59) Install boom cover (Item 4) with six (6) each
flatwashers (Item 3), lockwashers (Item 2), and nuts (Item 1). Tighten
nuts to 180 in-lbs.
1. Remove boom assembly from machine.
2. Place boom assembly on work stands in upside down position.
CAUTION: To avoid personal and equipment damage, make sure that the
boom is properly supported through this entire procedure.
Boom and Transfer
6-63