Workshop Manual

40.1 RE MOVAL OF THE POLY-V-BELTS
2. Turn the grooved pulley i dler arm counterclockwise. Maximum allowable torque is
90-100 N·m (66-73 lb·ft).
3. Insert an M10x80 bolt (or equivalent pin), into the bracket hole (2) in the idler arm.
4. Release the idler arm. The grooved pulley idler arm is now locked in a pre-tensioned
position.
5. Remove the belt.
6. Install a half-inch extension into the square hole (V) on the non-grooved pulley idler
arm (1).
7. Turn the non-grooved pulley idler arm counterclockwise. Maximum allowable torque is
90-100 N·m (66-73 lb·ft).
All information subject to change without notice.
40-4 DDC-SVC-MAN-0081 201 0 Copyrig ht © 2010 DETROIT DIESEL CORPORATION