Caterpillar C15 Industrial Engine — Electronic Unit Injector - Inspect/Adjust
Adjustments
For the Caterpillar C15 Industrial Engine, from the Caterpillar owner's manual.
Applies to: Caterpillar C1.5 engine
Before you start
- The electronic unit injectors use high voltage. Disconnect the unit injector enable circuit connector to prevent personal injury.
- Improper adjustment can reduce engine efficiency and shorten component life.
Procedure
- Ensure the engine cannot be started while maintenance is performed. Do not use the starting motor to turn the flywheel.
- Allow hot engine components to cool before measuring or adjusting the unit injectors.
- Disconnect the unit injector enable circuit connector to prevent personal injury. Do not contact injector terminals while engine is running.
- Only qualified service personnel should perform this maintenance.
- Refer to Systems Operation, Testing and Adjusting, 'Electronic Unit Injector - Test' and 'Electronic Unit Injector - Adjust'.
- Camshafts must be correctly timed with the crankshaft before injector lash adjustment. Remove timing pins before turning crankshaft.
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.