BRACKET AS 3663951 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description QTY
A 385-8479 Hydraulic Torque Wrench Pump Gp (115V) 1
385-8916 Hydraulic Torque Wrench Pump Gp (208-240V) 1
384-8910 Square Drive Hydraulic Torque Wrench 1
B 422-5474 Lift Link 2
C 154-6185 Forcing Bolt 2
D 8C-8422 Sealant -
E - Loctite C5A Copper Anti-Seize - Start By:
Remove swing motor.
Lower the bucket to the ground.
Drain the oil from the swing drive. Refer to Operation and Maintenance Manual, "Swing Drive Oil - Change".
Illustration 1 g02142753
Disconnect hose assembly (1). Remove hose assembly (2).
Illustration 2 g02142796
Attach tooling (B) and a suitable lifting device to swing drive (4). The weight of swing drive (4) is approximately 281 kg (620 lb). Use Tooling (A) to remove bolts (3) for the swing motor.
Illustration 3 g02142856
Use Tooling (C) to remove swing drive (4). Remove swing drive (4). Installation Procedure
Install swing drive (4) in the reverse order of removal.
Apply Tooling (D) between swing drive (4) and the frame.
Before assembly, remove compound, oil, and dust from female threads, then apply Tooling (E) to the threads of bolts (3).
Tighten bolts (3) in an alternating sequence to a torque of 250 25 N m (184 18 lb ft). Turn an additional angle of 45 5 degrees. Refer to Service Magazine , M0083843 , "An Improved Bolt Tightening Procedure for the Critical Joints Is Now Used on all Excavators" for more detailed information.