349F and 352F Excavators Machine System Specifications Caterpillar


Swing Gear and Bearing

Usage:

352F-VG A9J


Illustration 1g02641256
Top view

Table 1
Specification for 333-2879 Swing Gear and Bearing Gp 
Item  Qty  Part  Specification Description 
Position "S" that is on inner race (3) relative to the carbody assembly (1) and bearing stopper (2). Refer to Illustration 1 for correct orientation. 


Illustration 2g02641277

Table 2
Item  Qty  Part  Specification Description 
Before assembly, apply 8C-8422 Sealant between the mating surfaces of the gear group and upper frame assembly. and between the gear group and carbody assembly. 
455-3798 Bolt  Before assembly, apply blue Loctite 243 to the threads.
Torque to 37 ± 4 N·m (27 ± 3 lb ft)
455-3798 Bolt  Before assembly, apply blue Loctite 243 to the threads.
Torque to 20 ± 2 N·m (177 ± 18 lb in)
7Y-1095 Dowel  Before assembly, apply Loctite C5A Copper Anti-Seize compound to the dowel holes. 
54  461-3889 Bolt  Before assembly, remove compound, oil and dust from female threads, then apply Loctite C5A Copper Anti-Seize compound to the threads.
Use the following tightening procedure:

1. Tighten bolts to 250 ± 25 N·m (184 ± 18 lb ft).
2. Turn to an additional angle of 70 ± 5 degrees. 
7Y-1650 Hose Clamp  Torque to 5.39 ± 0.49 N·m (47.71 ± 4.34 lb in)
10  457-8759 Bolt  Before assembly, apply blue Loctite 243 to the threads.
Torque to 20 ± 2 N·m (177 ± 18 lb in)
11  70  461-3887 Bolt  Before assembly, remove compound, oil and dust from female threads, then apply Loctite C5A Copper Anti-Seize compound to the threads.
Use the following tightening procedure:

1. Tighten bolts to 250 ± 25 N·m (184 ± 18 lb ft).
2. Turn to an additional angle of 55 ± 5 degrees. 

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