JLG 120HX Service Manual - Manual (Page 13)

SECTION 1 - SPECIFICATIONS
3120819 – JLG Lift – 1-3
1.5 FUNCTION SPEEDS (MACHINES BUILT
AFTER S/N 38697)
Telescope
Extend - 80-100 seconds.
Retract - 85-100 seconds.
Lift
Up - 85-100 seconds.
Down - 75-100 seconds.
Extend-A-Reach
Up - 15-25 seconds.
Down - 15-25 seconds.
Swing Speed 360°
143-243 seconds.
Platform Rotation
Left - 7-20 seconds.
Right - 7-20 seconds.
Ground to 120’
165 to 200 seconds.
From 120’ to Ground
150 to 200 Seconds
Ground to 120’ to Ground
315 to 400 Seconds
1.6 TORQUE REQUIREMENTS
NOTE: See Section 2 for tightening sequence of turntable
bearing bolts.
NOTE: When maintenance becomes necessary or a fas-
tener has loosened, refer to the Torque Chart Figure
1-1 to determine proper torque value.
Table 1-1. Torque Requirements
Description
Torque Value
(Dry)
Interval Hours
Bearing To Chassis 298 NM
(220 FT LB)
200/500*
Bearing To Turntable 298 NM
(220 FT LB)
200/500*
Wheel Lugs 407 NM
(300 FT LB)
50
Drive Torque Hub to
Spindle 353 NM
(260 FT LB )
500
Boom Chains 80 NM
(59 FT LB)
200
Swing Motor to Swing
Brake 102 NM
(75 FT LB)
500
Swing Brake to
Torque Hub 149 NM
(110 FT LB )
500
Torque Hub to Mount-
ing Plate 353 NM
(260 FT LB )
500
Frame Valve Bolts 9 NM
(80 IN LB)
See Note
Below**
* Retorque swing bearing bolts after first 200 hours of oper-
ation and every 500 hours thereafter.
**Re-torque frame valve bolts after checking or adjusting
steer pressure.