
918496/GP0313 125
Planetary Axles
Changing Planetary Axle Oil
Replace the oil in the axles if it becomes contaminated, after the first 500 hours
of service, and every 1500 hours or annually thereafter.
1. Warm the axles to operating temperature.
2. Perform the “Mandatory Safety Shutdown Procedure” on page 10. The
machine must be parked on a level surface.
3. Complete the following procedures as appropriate for the model machine.
Changing Axle Wheel-Hub Oil (AL 500, AL 400 and AL 300 Series)
Note: Removing the tires and raising the machine on jackstands can make hub oil
changing easier.
1. Rotate the oil drain/fill plugs (A, Fig.
94) on the wheel hubs so they are
positioned at the top as shown in the
figure. Thoroughly clean the area
around the plugs and slowly loosen
and remove the plugs.
2. Position a waste oil collection contain-
ers, capacity 0.5 liters (0.5 quarts)
each, underneath the wheel hubs, to
catch oil as it drains.
Important: Always dispose of waste oil
according to environmental laws or take
to a recycling center for proper disposal.
DO NOT pour onto the ground or down a
drain.
3. Rotate the oil drain holes (B, Fig. 95)
on the wheel hubs so they are posi-
tioned at the bottom as shown in the
figure. Allow the oil to completely
drain from the hubs.
4. Rotate the holes on the wheel ends so
they are positioned to the side as
shown (C, Fig. 96).
5. Add oil through the holes to the level
line (D) stamped on the hub and
shown in Fig. 96. See “Fluid Capaci-
ties/Lubricants” on page 31 for the
specific oil type and grade.
Figure 94 – Wheel-Hub Oil Drain
Plug Removal Position
A
Figure 95 – Wheel-Hub Oil Drain
Position
B
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