MAST,INNER 1034303 - Caterpillar

Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 8S-7640 Stand 2
8S-7611 Tube 2
8S-7615 Pin 2
B 439-3939 Link Bracket As 2
C - Loctite C5A Copper Anti-Seize -
Illustration 1 g00712767
Attach Tooling (B) and a suitable lifting device to final drive (1). The weight of final drive (1) and the sprocket is approximately 312 kg (688 lb). Position the final drive in the frame.
Illustration 2 g00712737Note: Make sure that bolt holes (2) for the travel motor are in the correct position.Note: Make sure that bolts (3), the washers, the motor housing, and the frame are clean and free of protective coating and oil.
Apply Tooling (C) to the threads of bolts (3). Refer to table 2 for the correct torque specification for bolts (3).
Table 2
Torque Table
Machine Model Torque Specification
326 150 25 N m (111 18 lb ft) turn an extra 55 5 degrees.
329 and 330 150 25 N m (111 18 lb ft) turn an extra 60 5 degrees.
Refer to Service Magazine, M0083843, "An Improved Bolt Tightening Procedure for the Critical Joints Is Now Used on All Excavators" for more detail information.
Remove Tooling (B) and the suitable lifting device from the final drive.
Illustration 3 g00489826
Lift the side of the machine to remove Tooling (A).End By:
Install the travel motor.
Connect the track assembly.