PULLEY GP-IDLER 1725754 - Caterpillar

Illustration 1 g01525616
Top view
Illustration 2 g01525613
Right side view
Note: Refer to Testing and Adjusting, "CAT Compression Brake Lash - Adjust" in order to obtain the correct procedure for setting the lash on the compression brake. (1) Use the following procedure to tighten the locknuts:
Set the lash for the CAT compression brake to 0.686 0.050 mm (0.0270 0.0020 inch).
Tighten the locknut on the adjustment screw to 15 3 N m (11 2 lb ft). Use the following procedure to tighten the nine studs (2):
Tighten the studs in the numerical sequence that is shown in Illustration 2 to 50 5 N m (37 4 lb ft).
Turn the studs to an additional 45 5 degrees. (3) Torque for three taperlock studs ... 65 10 N m (48 7 lb ft)
Illustration 3 g01165873
Tightening sequence for CAT compression brake
Use the following steps in order to install the housing for the CAT compression brake onto the cylinder head:
Place the housing over the mounting studs. Finger tighten the mounting stud nuts and the mounting bolt.
Torque the CAT compression brake to the cylinder head by using the numerical sequence that is shown in Illustration 3.
Torque the CAT compression brake again by using the same numerical sequence.