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Maintenance Section
Front Axle Differential
Illustration 229 g01014889
1. Clean the area around combined level and filler
plug (2) for the front differential. Remove combined
level and filler plug (2) and check that the oil is level
with the hole.
2. If necessary, add oil through the same hole.
3. Clean combined level and filler plug (2) and install
combined level and filler plug (2).
Differential Oil Sample - Obtain
Hot oil and components can cause personal injury.
Do not allow hot oil or components to contact skin.
NOTICE
Care must be taken to ensure that fluids are contained
during performance of inspection, maintenance, testing,
adjusting and repair of the product. Be prepared to collect
the fluid with suitable containers before opening any
compartment or disassembling any component
containing fluids.
Refer to Special Publication, NENG2500, "Caterpillar
Dealer Service Tool Catalog" for tools and supplies
suitable to collect and contain fluids on Caterpillar
products.
Dispose of all fluids according to local regulations and
mandates.
Illustration 230 g01014887
Rear axle differential
Illustration 231 g01054802
Front axle differential
Obtain a sample of oil from each axle. Keep the oil
samples separate from each other.
Clean the area around filler plug (1) for the differential.
Remove the filler plug. Use a sampling gun in the filler
hole in order to obtain an oil sample from the
differential. Inspect the filler plug for damage. Install the
filler plug.
Analysis of oil from each axle will provide an accurate
representation of oil condition within each system.
Use SOS Oil Analysis in order to monitor the
condition of your oil.
For additional information, refer to the appropriate
Service Manual.