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Maintenance Section
Be sure the engine cannot be started while this
maintenance is being performed. To prevent possible
injury, do not use the starting motor to turn the
flywheel.
Hot engine components can cause burns. Allow
additional time for the engine to cool before
measuring/adjusting engine valve lash clearance.
NOTICE
Operation of Caterpillar Engines with improper engine
valve lash adjustments will reduce the engine efficiency.
This reduced efficiency could result in excessive fuel
usage and/or shortened engine component life.
Measure the engine valve lash with the engine
stopped. To obtain an accurate measurement, allow at
least 20 minutes for the valves to cool to engine cylinder
head and block temperature.
Final Drive Oil - Change
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 250 g00952214
Position of the plug for draining the oil
1. Park the machine on level ground. Position the
drain plug in the position that is shown in
Illustration 250.
2. Fully retract the boom and fully lower the boom.
Move the transmission control to the NEUTRAL
position and engage the parking brake. Shut off the
engine.
3. Clean the area around the drain plug. Remove the
drain plug and drain the oil into a suitable container.
Illustration 251 g00952220
Position of the plug for draining the oil
4. Move the machine until the plug hole is at the
horizontal center line of the wheel. The correct
position is shown in Illustration 251.
5. Add oil to the final drive through the plug hole. Oil
should be dripping out of the plug hole when the
final drive is full of oil. Refer to Operation and
Maintenance Manual, "Capacities (Refill)" and
Operation and Maintenance Manual, "Lubricant
Viscosities" for more information.
Refer to the appropriate Service Manual for more
detailed lubricant information.
6. Clean the drain plug and reinstall the drain plug.
7. Repeat the steps that are explained above for each
of the three remaining final drives.
Final Drive Oil Level - Check
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.