Drive Belt Installation

T o install a poly V - swing the automatic tensioner the full sprung position (fully toward the install then place the belt over the Slowly return the automatic tensioner back its original not allow the tensioner snap against the For proper belt refer the following belt routing Before installing the new ensure that the pulley grooves are clean and free

Certain and CXU model chassis equipped MP7 engines utilize a - rib belt - rib When replacing the the belt must installed against the rear face the pulley (edge pulley closest the engine) shown the illustration below .

W0054031

Install - rib belt against rear edge - rib pulley .

Drive Belt Routing MACK MP7 and MP8 engines, all models.

Drive

Engines

W0054017

Crankshaft Pulley Automatic T ensioner

Idler Pulley W ater Pump

Main Drive Belt Fan Drive

Idler Pulley (when applicable) Accessory Drive Belt Automatic T ensioner

10. Alternator

1 Air Conditioner Compressor (if equipped)

Drive Belt Routing MP10 Engine

Crankshaft Pulley

Idler Pulley Automatic T ensioner W ater Pump Main Drive Belt

Fan Drive Automatic T ensioner Alternator Accessory Drive Belt 10. Air Conditioner Compressor