Caterpillar 3126B / 3126B Industrial Engine — Engine Oil and Filter - Change

Maintenance · Lubrication system

For the Caterpillar 3126B / 3126B Industrial Engine, from the Caterpillar owner's manual.

Applies to: Caterpillar 3126B, Caterpillar 3126B Industrial Engine engine

Procedure

1. Run the engine at normal operating temperature, then stop the engine. Attach a DO NOT OPERATE tag to the ignition keyswitch.
2. Remove the oil drain plug to allow the oil to drain. Clean and install the drain plug.
3. Remove the oil filter with a 1U-8760 Chain Wrench.
4. Cut the oil filter open with a 175-7546 Oil Filter Cutter. Inspect for metal debris.
5. Clean the sealing surface of the filter mounting base. Ensure all of the old oil filter gasket is removed.
6. Apply clean engine oil to the new oil filter gasket.
7. Install the oil filter. Tighten by hand until the gasket contacts the base; do not overtighten.
8. Remove the oil filler cap. Fill the crankcase with the proper amount of oil.
9. Start the engine and run at LOW IDLE for two minutes; inspect the oil filter for leaks.
10. Stop the engine and allow oil to drain back to the sump for a minimum of ten minutes.
11. Check the oil level; maintain between the ADD and FULL marks on the ENGINE STOPPED side of the oil level gauge.

Full service-parts list: Caterpillar 3126B →, Caterpillar 3126B Industrial Engine engine →

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.

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