JLG 1350SJP Service Manual - Manual (Page 71)

SECTION 3 - CHASSIS & TURNTABLE
3121142 – JLG Lift – 3-25
6. Tighten the 2 socket head screws M8x16 (4) with a male
hex head torque wrench at 18.4 ft.lbs. (25 Nm) torque.
7. Repeat the above steps to engage the gearbox again.
Operation:
a. Engaged gearbox
At this condition the motion is transmitted from the
hydraulic motor to the gearbox.
b. Disengaged gearbox
AT THIS CONDITION THE HYDRAULIC MOTOR AND THE BRAKE ARE DISCON-
NECTED TO THE GEARBOX: THE WHEEL IS IDLE.
Maintenance Information
PERIODIC MAINTENANCE
The gearbox only requires the scheduled maintenance proce-
dures set out by the manufacturer (see Table 3-4).
Good maintenance will ensure an ongoing functioning in time
as well as maximum reliability.
Should irregularities in function arise, it will be necessary to
consult the troubleshooting checklist to find the most ade-
quate solution.
If unsuccessful, it may be necessary to partially or completely
disassemble the gearbox.
Changing the Lubricating oil
1. Check that the gearbox axis is horizontal. Rotate the
gearbox housing until the drain plug is on the bottom of
the vertical axis of the end cover.
2. Unscrew the both plugs (Fill and Drain) and let the oil
flow in a large enough container; in order to facilitate
draining the oil must still be warm.
3. Wait a few minutes until all the oil is drained and then
proceed to screw on the plugs.
4. Proceed with the oil fill-up. Refer to Filling-up the Gear-
box with Lubricating Oil.
NOTE: Never mix mineral oils with synthetic oils and vice versa.
DO NOT DISPOSE OF THE OIL IN THE NATURAL ENVIRONMENT. BE CAREFUL TO
ELIMINATE IT IN COMPLIANCE WITH THE RELATIVE RULES AND REGULATIONS
THAT GOVERN LOCALLY.
Figure 3-18. Gearbox Disengaged
Table 3-4. Drive Hub Maintenance Schedule
Inspection Frequency Action
Tightening bolts After the first 50 operating hours
of the gearbox Bolt tightening torque
check
Oil level Every 150 operating hours of the
gearbox Refill oil if necessary
1 st oil change
At 150 operating hours of the
gearbox Oil replacement
Next oil change Every 1200 operating hours Oil replacement