Caterpillar C15 Industrial Engine — Fuel System Secondary Filter - Replace
Maintenance
For the Caterpillar C15 Industrial Engine, from the Caterpillar owner's manual.
Applies to: Caterpillar C1.5 engine
Before you start
- Do not fill the secondary fuel filter with fuel before installing.
- Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire.
Procedure
- Stop the engine. Turn the ignition switch to OFF or disconnect the battery. Shut off the fuel supply valve (if equipped).
- It may be necessary to relieve residual fuel pressure. Wait one to five minutes until fuel pressure has lowered. Use a suitable container to catch fuel.
- Remove the used fuel filter and discard.
- Clean the gasket sealing surface of the fuel filter base. Ensure all old gasket is removed.
- Apply clean diesel fuel to the new fuel filter gasket.
- Install the new fuel filter. Spin onto the base until the gasket contacts the base. Tighten according to instructions on the filter. Do not overtighten.
- Open the fuel supply valve. Prime the fuel system. Refer to Fuel System - Prime.
Tools required
- suitable container Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- A two micron high efficiency fuel filter is required for all Caterpillar Electronic Unit Injectors
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.