GAUGE GP-OIL LEVEL (DIPSTICK) 4430068 - Caterpillar

Disassembly Procedure
Start By:
Remove the fuel injection pumps. Refer to Disassembly and Assembly, "Fuel Injection Pump - Remove".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
When the fuel injection pumps are disassembled, handle the parts carefully. Do not damage the surfaces of the plungers, the barrels and the bonnets. Any scratches will cause leakage inside the fuel injection pump. The plunger and the barrel for each pump are made as a set. Do not intermix the plunger of one pump in the barrel of another pump. If one part is worn, install a completely new plunger and barrel assembly. Be careful when placing the plunger into the bore of the barrel.
Illustration 1 g00456318
Pull plunger (1) and washer (5) out of barrel (3) and spring (2) .Note: Do not remove the gear from the plunger. The gear and the plunger are assembled and adjusted at the factory.
Remove washer (5) and spring (2) .
Remove ring (6). Separate barrel (3) from bonnet (4) .
Illustration 2 g00456324
Remove check valve assembly (7) and spring (8). If check valve assembly (7) is disassembled, do not mix parts with parts from another check valve assembly.