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SECTION 3 - CHASSIS & TURNTABLE
3-26
3121171
6.
Tighten two socket head screws M8x16 (4) with a male
hex head torque wrench to 18.4 ft-lb (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 gearbox axis is horizontal. Rotate gearbox hous-
ing until drain plug is at bottom of the vertical axis of the
end cover.
2.
Unscrew both plugs (Fill and Drain) and let the oil flow in
a large enough container. To facilitate draining, the oil
must 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 OIL IN THE NATURAL ENVIRONMENT. BE CAREFUL TO
ELIMINATE IT IN COMPLIANCE WITH LOCAL RULES AND REGULATIONS.
Figure 3-19. 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
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