HARNESS AS-WIRING 4556840 - Caterpillar

Disassembly Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     1P-0510     Driver Gp     1    
B     7S-7786     Puller Leg     2    
5F-7345 Screw     1    Start By:
Remove the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump - Remove".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Illustration 1 g00614664
Remove the two bolts, oil pickup tube (2), and the gasket from the engine oil pump. Remove one bolt and outlet elbow (1) from the engine oil pump.
Illustration 2 g00614677
Remove bolt (3), washer (4), and idler gear (5) from the engine oil pump.
Illustration 3 g00614683
Use Tooling (A) and a suitable press in order to remove the bearing from idler gear (5) .
Remove shaft (6) from oil pump body assembly (7) .
Use Tooling (B) to remove drive gear (8) .
Illustration 4 g00614689
Remove bolts (10). Separate oil pump body (9) from oil pump body assembly (7) .
Illustration 5 g00614694
Before removing the drive shaft from the pump housing, be sure that no burrs exist on the drive shaft. If the drive shaft has burrs on it, the bores in the pump housing may be scratched.
Remove shaft assembly (11) and shaft assembly (12) from oil pump body (9) .
Illustration 6 g00614696
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Remove the following items from oil pump body assembly (7) : bolt and washer, spring (14) and oil pressure relief plunger (13) .