JLG 600SC_660SJC Service Manual User Manual
Page 49
SECTION 3 - GRADALL CHASSIS
3121157
– JLG Lift –
3-5
19.
Reference offset in idler spring from centerline of
idler (to be oriented down). Using gantry crane and
sling, pick up and slide spring / idler assembly into
pre-greased slider area, using nylon sledge hammer
lightly to assemble. Repeat for other side.
20.
Repeat process for opposite side:
21.
Push idler assembly against the seat. Using the spe-
cial adapter, pump in grease to start expanding
shock assembly; just enough to inspect for proper
assembly prior to track installation.
22.
Repeat process to opposite side:
23.
Assemble fittings for hoses to both drive motors fin-
ger tight until correct positioning is established.
24.
Install swivel supports with hardware and loctite.
Torque supports to 53 ft-lbs, +5-0 (74 Nm, +7 -0).
25.
Lift swivel using supports previously installed, and
assemble to frame. Use loctite with bolts to help
secure. Torque to 68 ft-lbs.(95 Nm).
26.
Guide in hoses from swivel area through each side
frame. Make initial connections for hoses from
swivel to drive motors.
27.
Route brake, shift, and drain hoses through rh side
frame. Lubricate o-rings, and hand tighten hoses to
RH drive motor fittings.
28.
Repeat hose routing process on LH side frame with
correct hoses to drive motor.