Caterpillar G3500 — Engine Oil and Filter - Change
Maintenance
For the Caterpillar G3500, from the Caterpillar owner's manual.
Applies to: Caterpillar G3500 engine
Before you start
- Engine damage can occur if crankcase is filled above the FULL mark on the dipstick.
Procedure
- If equipped, open the oil drain valve and drain oil, then close the valve
- If equipped with a dirty-oil pump, connect a hose and pump the crankcase empty
- If no drain valve or pump, remove the oil drain plug, drain oil, clean plug and fitting, reinstall and tighten drain plug to 145 ± 15 N·m (105 ± 10 lb ft)
- Replace the engine oil filter elements before filling the crankcase with new oil
- Remove the oil filler cap, fill crankcase through the oil filler tube only per Refill Capacities and Recommendations, clean and install filler cap
- Close the fuel supply line and crank the engine until oil pressure gauge indicates 70 kPa (10 psi); allow starting motor to cool 2 minutes before cranking again
- Start the engine and operate at low idle for two minutes to fill lubrication system and filters; inspect for leaks
- Stop the engine and allow oil to drain back into the sump for a minimum of ten minutes
- Check oil level with the oil level gauge; maintain between ADD and FULL marks on the ENGINE STOPPED side
Specs & values
- Oil pan drain plug torque 145 ± 15 N·m (105 ± 10 lb ft)
Source: Caterpillar owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.