RING-RETAINING 5100992 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 5F-4764 Pry Bar 1
B 9U-6862 Tapered Brush 1
9U-7237 Brush Extension 1
C 9U-6863 Small Bore Brush 1
9U-7237 Brush Extension 1
D 8T-2998 Lubricant 1
E 1U-5718 Vacuum Pump 1
169-7372 Fluid Sampling Bottle -
4C-4057 Tube
7.9 mm (0.31 inch) OD - Start By:
Remove the rocker arms and shafts.
Turn the fuel supply to the “OFF” position.
Illustration 1 g01855294
Disconnect hose assemblies (1).
Drain the fuel from the cylinder head.
Illustration 2 g01261606
Disconnect harness assembly (2) from electronic unit injector (3).
Remove bolt (4).
Illustration 3 g01261609
Position Tooling (A) under clamp (5) to remove electronic unit injector (3).Installation Procedure
When a fuel injector group is serviced, the new fuel injector group's electronic injector code must be programmed into the engine's personality module software by using the calibration menu on the Electronic Service Tool. If the new fuel injector group's electronic code is not entered, the previous fuel injector group's characteristics are assumed.If it is not possible to immediately reprogram the electronic injector code of the injector into the personality module software, the engine will not be severely harmed. The new electronic injector code should be reprogrammed as quickly as possible in order to optimize engine performance.
Install electronic unit injector (3) in the reverse order of removal.
Use Tooling (E) to remove the fuel and oil from the cylinder. Evacuate as much fuel and oil as possible from the cylinder before installing the electronic unit injector. Several evacuations may be necessary.
Illustration 4 g01009642
(7) Injector seating
(8) Tip bore
Use Tooling (B) to clean injector seating (7).
Use Tooling (C) to clean tip bore (8).
Lubricate the seals lightly with a 50/50 mix of clean engine oil and Tooling (D).
Tighten bolt (4) to a torque of 70 15 N m (52 11 lb ft).
Illustration 5 g03380304
Electronic unit injector serial number (Y)
Record all the injector serial numbers located on top of electronic unit injector (3). The injector serial numbers will be used for downloading trim files for new or exchanged electronic unit injectors (3). Refer to Troubleshooting, "Injector Trim Calibration" for the correct procedure for injector trim calibration.