JLG M600 Service Manual - Manual (Page 111)

SECTION 4 - BOOM & PLATFORM
3121813 – JLG Lift – 4-1
SECTION 4. BOOM & PLATFORM
4.1 BOOM
Removal
1. Raise the boom to horizontal and make sure that it is
adequately supported with a lifting device or block-
ing.
2. Tag and disconnect the electrical leads at the plat-
form and the platform valve.
3. Tag and disconnect all hydraulic lines on the plat-
form valve and rotator. Cap or plug all openings.
4. Remove the hardware attaching the platform and
platform support and remove the platform.
NOTE: Steps 5 and 6 are only applicable if the machine is
equipped with a jib.
5. If equipped with a jib, place the jib in a horizontal
position and support it with blocking. Tag and dis-
connect the hydraulic lines running to the jib cylin-
der. If equipped with a side swing jib, also tag and
disconnect the hydraulic lines running to the jib rota-
tor.
6. Remove the jib pivot pin and the slave cylinder pivot
pin and remove the jib.
7. Disconnect the hydraulic and electrical lines from
the bulkhead fittings at the rear of the boom.
8. Remove the cover at the rear of the upright.
9. Remove the covers on the side of the upright for the
pivot pins.
10. Tag and disconnect the hydraulic lines running to
the telescope cylinder.
11. Tag and disconnect the hydraulic lines running to
the master cylinder.
12. Remove the upper lift cylinder pivot pin.