320 GC, 320 and 323 Excavator Machine Systems Specifications Caterpillar


Swing Gear and Bearing

Usage:

320 GC BR4


Illustration 1g02724727
Typical example

Table 1
Item  Qty  Part  Specification Description 
Position "S" that is on inner race (12) relative to the carbody assembly (1) and bearing stopper (2). Refer to Illustration 1. 
The five holes which are marked “3” are not for use. 
8T-4136 Bolt  Apply blue Loctite 242 to the threads.
Torque to 20 ± 2 N·m (177 ± 18 lb in)
8T-4136 Bolt  Apply blue Loctite 242 to the threads.
Torque to 37 ± 4 N·m (27 ± 3 lb ft)
7Y-1650 Hose Clamp  Torque to 5.39 ± 0.49 N·m (47.71 ± 4.34 lb in)
8T-4137 Bolt  Apply blue Loctite 242 to the threads.
Torque to 37 ± 4 N·m (27 ± 3 lb ft)
096-4902 Dowel  Apply Loctite C5A Cooper Anti-Seize to the dowel holes. 
Apply blue Loctite High Flex GM between the mating surfaces of the gear group and upper frame assembly. Apply blue Loctite High Flex GM between the mating surfaces of the gear group and carbody assembly. 
10  37  461-3880 Bolt  Before assembly, remove Anti-seize, oil and dust from bolts, washers and female threads.
Then apply Loctite C5A Copper Anti-Seize compound.
Torque to 150 ± 15 N·m (110 ± 11 lb ft). Turn an additional 70 ± 5 degree. 
11  40  461-3879 Bolt  Before assembly, remove Anti-seize, oil and dust from bolts, washers and female threads.
Then apply Loctite C5A Copper Anti-Seize compound.
Torque to 150 ± 15 N·m (110 ± 11 lb ft). Turn an additional 60 ± 5 degree. 

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