JLG 601S ANSI Service Manual - Manual (Page 137)

SECTION 4 - BOOM & PLATFORM
3120746 – JLG Lift – 4-9
Installation
1. Using a suitable lifting device, position boom
assembly on turntable so that the pivot holes in both
boom and turntable are aligned.
2. Install boom pivot pin, ensuring that location of hole
in pin is aligned with attach point on turntable.
3. If necessary, gently tap pin into position with soft
headed mallet. Secure pin mounting hardware.
4. Align push bar pivot hole with pivot holes in turnta-
ble. Install push bar pivot pin, ensuring that location
of hole in pin is aligned with attach point on turnta-
ble.
5. If necessary, gently tap pin into position with soft
headed mallet. Secure pin mounting hardware.
6. Connect all wiring to the ground control box.
7. Connect all hydraulic lines running along side of
boom assembly.
8. Using all applicable safety precautions, operate lift-
ing device in order to position boom lift cylinder so
that holes in the cylinder rod end and boom struc-
ture are aligned. Insert the lift cylinder pin, ensuring
that location of hole in pin is aligned with attach
point on boom.
9. Align holes in boom structure with hole in master
cylinder. Insert the master cylinder pin, ensuring that
location of hole in pin is aligned with attach point on
boom.
10. Adjust retract and extend cables to the proper
torque. Refer to Section 4.2, Boom Rope Torquing
Procedures.
11. Using all applicable safety precautions, operate
machine systems and raise and extend boom fully,
noting the performance of the extension cycle.
12. Retract and lower boom, noting the performance of
the retraction cycle.
4.2 BOOM ROPE TORQUING PROCEDURES
Torque Procedures
1. Position boom in fully down and fully retracted posi-
tion.
2. Clamp both threaded ends of wire rope to prevent
rotation.
NOTE: Do not clamp on threads.
Figure 4-10. Reassembly of Components - Boom
Powertrack Assembly
Figure 4-11. Dimensions of Boom Sections