CORE GP-O CLR 0R3979 - Caterpillar

Assembly Procedure
Table 1
Tools Needed     A     B     C    
1P-1861 Retaining Ring Pliers     1            
1P-0510 Driver Group         1        
1P-1855 Retaining Ring Pliers             1    Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement.
Illustration 1 g00685369
Install bearing race (2) in cover (1). Use Tool (A) to install snap ring (3) in order to hold bearing race (2) in position.
Illustration 2 g00685371
Use Tool (B) to install seal (4) in the cover. Install seal (4) with the lip of seal (4) toward the inside of the cover, as shown. Put clean oil on the lip of seal (4) .
Illustration 3 g00685373
Heat bearing cone (5) to maximum temperature of 135°C (275°F). Install bearing cone (5) on gear (6) .
Illustration 4 g00685375
Install the spacer in the groove in adapter (8) .
Lower the temperature of bearing cups (7). Install bearing cups (7) in adapter (8) .
Illustration 5 g00685377
Put adapter (8) in position on the gear, as shown.
Heat bearing cone (11) to a maximum temperature of 135°C (275°F). Install bearing cone (11) on the gear.
Put washer (9) in position on bearing cone (11). Use Tool (C) to install snap ring (10) on the gear.
Illustration 6 g00685379
Install the O-ring seals on adapters (8). Put clean oil on the O-ring seals.
Put adapters (8) in position on cover (1). Install the bolts that hold the parts in place.
Illustration 7 g00685381
Put gear (13) in position on shaft (14), as shown.
Heat bearing race (12) to a maximum temperature of 135°C (275°F). Install bearing race (12) on shaft (14) .
Illustration 8 g00685389
Install shaft (14) and gear (13) in the cover as an assembly.
Illustration 9 g00685394
Install coupling assembly (15) on the shaft.
Put the O-ring seal and retainer (16) in position on coupling assembly (15) .
Install the washer and bolt (17). Tighten bolt (17) to a torque of 110 N m to 140 N m (80 lb ft to 105 lb ft).End By: Install the pump drive. Refer to Disassembly and Assembly, "Pump Drive - Install".