KIT-BARREL 2804459 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 439-3941 Link Bracket As 1
- - Loctite 243 -
Illustration 1 g02158432
Position the machine onto suitable cribbing below the first roller. Ensure that the master pin is above the center line of the sprocket.
Separate the track.
Illustration 2 g02158433
Illustration 3 g02158434
Remove bolts (1) that hold sprocket (2) to the final drive. Reposition sprocket (2) and attach Tooling (A) and a suitable lifting device to sprocket (2). The weight of sprocket (2) is approximately 57 kg (125 lb). Remove sprocket (2). Installation Procedure
Install sprocket (2) in the reverse order of removal.
Before assembly, remove compound, oil, and dust from female threads, then apply Tooling (B) to threads of bolts (1).
Refer Table 2 for correct torque specification values. Refer to Service Magazine , M0083843 , "An Improved Bolt Tightening Procedure for the Critical Joints Is Now Used on all Excavators" for more detailed information.
Table 2
Sales Models Torque Specification for bolts (1)
330D Tighten to a torque of 150 15 N m (111 11 lb ft). Turn an additional angle of 40 5 degrees.
336D and 340D Tighten to a torque of 250 25 N m (184 18 lb ft). Turn an additional angle of 35 5 degrees.