Caterpillar — Fuel System Primary Filter - Clean/Replace
Maintenance
From a Caterpillar owner's manual covering: 3408C, 3412, 3412C. Check it applies to your exact model before use.
Applies to: Caterpillar 3408C, Caterpillar 3412, Caterpillar 3412C
Before you start
- Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire.
- Do not fill the fuel filters with fuel before installing them.
Procedure
- Stop the engine; turn the start switch OFF; disconnect the battery.
- Shut off the fuel tank supply valve to the engine.
- Open the drain valve to drain fuel from the filter case; close the valve.
- Loosen the bolt on the filter housing; remove the filter case.
- Remove the element and wash it in clean, nonflammable solvent.
- Install the element and the filter case.
- Tighten the bolt to 24 ± 4 N·m (18 ± 3 lb ft).
Specs & values
- Filter housing bolt torque 24 ± 4 N·m (18 ± 3 lb ft)
Full service-parts list: Caterpillar 3408C →, Caterpillar 3412 →, Caterpillar 3412C →
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.