8/05/08
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Section 7: Lubrication
4220ST & 4420ST Light Utility Vehicles 700-504M
Table of Contents
rear trans-axle case, 2” for center transfer case and
1/4” from bottom of fill opening for front differential
case.
3.
Add correct lubrication if needed. (Don’t overfill)
4.
Replace fill cap and tighten securely.
Oil Change
Warm oil drains quickly and completely. Drain used oil
while it is still warm as follows:
1.
Park vehicle on a level surface, set park brake, turn off
ignition switch and remove switch key.
2.
Place a suitable container below housing to catch
used oil. Remove fill cap and drain plug.
3.
Allow used oil to drain completely and then reinstall
drain plug and tighten securely.
4.
Dispose of used oil in a manner that is compatible with
the environment. Do not throw used oil in the trash,
pour it on the ground, or down a drain.
5.
Fill gear cases per capacities in "Section 10:
Specifications and Capacities" on page 45.
6.
Replace fill cap and tighten securely.
Case Oil
A general description of maintenance, recommendations
and capacities for the trans-axle case, center transfer
case and front differential case are provided below.
Maintenance Schedule
•
Check case housing for damage and possible oil
leakage after each use.
•
Check oil level every 6 months or every 100 hours
(whichever comes first).
•
Change oil once a year or every 400 hours (whichever
comes first).
Level Check
Oil must be drained and refilled with proper quantities to
insure correct oil level in the front differential case. Check
rear trans-axle case and center transfer case oil at the fill
plug with a clean rod. The rod should be long enough so
that it will not fall pass the fill opening.
1.
Park vehicle on a level surface, set park brake, turn off
ignition switch and remove switch key.
2.
Remove fill cap and measure from top of fill hole to oil
level in case. This should be approximately 4 1/2” for
Rear Trans-axle Case
Refer to Figure 7-4 & Figure 7-5:
See also "Section 10: Specifications and Capacities" on
page 45.
Fill cap location: Top center rear side (See Figure 7-4)
Drain plug location: At bottom left side (see Figure 7-5)
Type of lubrication: Mobil 424
Trans-axle case oil capacity: 20 oz.
Quantity: Fill to center line of output shaft.
(Approximately 4 1/2” from top of fill opening to top
of oil level.)
6 mo/100 hrs
NOTE: Running trans-axle or driveline gearboxes low
on oil can damage seals, bearings and gears voiding
warranty for the trans-axle and gearboxes.
Rear Trans-axle Check and Fill Plug
Figure 7-4
Rear Trans-axle Drain Plug
Figure 7-5
24707a
Check and Fill Plug
24707b
Drain Plug
