Caterpillar C27 / C32 — Fuel System - Prime
Maintenance
For the Caterpillar C27 / C32, from the Caterpillar owner's manual.
Applies to: Caterpillar C32
Before you start
- Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire. Turn the start switch off when changing fuel filters.
- Do not crank the engine continuously for more than 30 seconds; allow the starting motor to cool for two minutes.
Procedure
- Turn the priming pump plunger (4) counterclockwise in order to unlock the plunger.
- Manually pump the plunger in order to fill the fuel lines and the fuel filters with fuel.
- Continue to pump the plunger until a strong resistance is felt.
- Push in the plunger and lock it by turning the plunger clockwise.
- Start the engine at low idle.
- If the engine runs rough, continue to run the engine at low idle until the engine runs smoothly.
Full service-parts list: Caterpillar C32 →
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.