JLG 1500SJ Service Manual - Manual (Page 328)

SECTION 4 - BOOM & PLATFORM
4-82 – JLG Lift – 3121262
11. Repeat the following boom movement steps three
times. This is to ensure that the wire rope tension
has equalized on both sides of the sheaves and the
ropes are seated properly in the sheave grooves.
a. Fully retract the boom.
b. Extend the boom such that the platform moves 4
feet (1.3 m) from fully retracted position.
12. Verify the Fly Boom and Outer Mid Boom Retract
wire rope torques.
a. If the torque values are not correct, repeat the
Wire Rope Tensioning procedure.
b. If the torque values are correct, proceed to the
next step.
13. Retract the boom 2-3 feet (0.5-1 m). Do not fully
retract or bottom out the boom.
14. Verify the Fly Boom and Outer Mid Boom Extend
wire rope torques.
a. If the torque values are not correct, repeat the
Wire Rope Tensioning procedure.
b. If the torque values are correct, proceed to the
next step.
15. Check for proper function of the boom assembly.
When properly torqued and positioned, all three
moving boom sections will move simultaneously.
16. Install new nylon collar locknuts to the Fly Boom
Extend wire rope fittings. Do not re-use the old nylon
collar lock nuts. Torque the locknuts to 10 ft-lb (13.5
Nm)
17. Reinstall the lock plates to the remaining adjuster
nuts.
18. Install all covers.