PUMP GP-FUEL INJECTION 3175045 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 439-3941 Link Bracket As 1
B - Loctite 243 -
Illustration 1 g02126083
Position the machine onto suitable cribbing below the first roller, as shown. Ensure that the master pin is above the center line of the sprocket, if equipped.
Separate the track.
Illustration 2 g02126096
Remove bolts (1) that hold sprocket (2) to the final drive.
Illustration 3 g02126097Note: Use several washers between Tooling (A) and sprocket (2). The use of the washers will prevent damage to the sprocket.
Reposition sprocket (2). Attach Tooling (A) and a suitable lifting device to sprocket (2). The weight of sprocket (2) is approximately 86 kg (190 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).
Tighten bolts (1) in an alternating sequence to a torque of 250 25 N m (184 18 lb ft). Turn an additional angle of 35 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.