Case 1088 Excavator Service Manual

Table of Contents

1. General
2. Engines
3. Fuel System
4. Electrical
5. Track and Suspension
6. Power Train
7. Hydraulics
8. Mounted Equipment

Manual Extract Fuel Injector Tester

A Diesel Fuel Injection Nozzle tester (CAS-10249) is needed for checking a11d adjusting the injectors ..
The following instructions will work for all models of testers except for descriptions on adjustments to the tester. Operating instructions are given with the tester:
The tester is used to make the following checks:

1. Check and adjust the injector opening pressure.
2. Check the injector assembly for fuel leakage.
3. Check the injector for accurate spray pattern.

Fuel injectors must be checked on the tester when making the following service operations:

1. An injector that has been removed from the engine for cleaning, must be checked on the tester before the injector can be installed in the engine.
2. A new injector assembly must be checked on the tester before the injector can installed in the engine.
3. All the injectors must be removed and checked on the tester during an engine overhaul.
4. An injector must be removed and checked on the tester before the injector is disassembled, if the injector is the cause of engine performance that is not acceptable.