NUT 8J7368 - Caterpillar

Disassembly Procedure
Start By:
Remove the fuel transfer pump. Refer to Disassembly and Assembly, "Fuel Transfer Pump - Remove".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: Cleanliness is an important factor. Before you begin the disassembly procedure, the exterior of the components should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism. Precision components can be damaged by contaminants or by dirt. Perform disassembly procedures on a clean work surface. Keep components covered and protected at all times.
Illustration 1 g00918544
Pull drive coupling (2) from the drive shaft. Remove O-ring seal (1).
Illustration 2 g00918545
Personal injury can result from parts and/or covers under spring pressure.Spring force will be released when covers are removed.Be prepared to hold spring loaded covers as the bolts are loosened.
Remove cap (6), washer (5), valve spring (4), and valve poppet (3).
Illustration 3 g00918549
Remove bolts (7). Remove head (8) from plate (9).
Illustration 4 g00918554
If check valve (10) will be replaced, remove the check valve from head (8).
Illustration 5 g00918555
Remove plate (9). Remove gasket (11). Remove the O-ring seal from the side of the plate that is opposite of gasket (11). If the bearings in plate (9) are damaged, the plate must be replaced. The bearings are nonserviceable.
Illustration 6 g00918557
Remove idler gear (12) and drive shaft (13) from casing (14).
Illustration 7 g00918558
Remove casing (14) and sleeves (15) from bracket (16). Remove the O-ring seal from casing (14).
Illustration 8 g00918559
Remove outer lip seal (17) and inner lip seal (18) from bracket (16). If the bearings in bracket (16) are damaged, the bracket must be replaced. The bearings are nonserviceable.