SECTION 1 OPERATION Page 32 FAN - INSPECTION WARNING! Personal injury can result from a fan blade failure. Never pull or pry on the fan. This can damage the fan blade(s) and cause fan failure. * Rotate the crankshaft by using the crankshaft barring techniques recommended by Cummins Engine Company, Inc. Check for cracks, loose rivets, and bent or loose blades.
Check the fav to make sure it is securely mounted Tighten the capscrews # necessary Replace any fan that is damaged FAN DRIVE BELT - INSPECTtON DRIVE BELT Replace belts that are cracked or frayed Adjust belts that have a glazed or shiny surface which indicates belt slippage Correctly installed and tensioned belts will show even pulley and belt wear. Belt damage can be caused by . Incorrect tension . Incorrect size or length . Pulley misalignment . Incorrect installation - Severe operating environment - Oil or grease on the belts BELT TENSION - CHECK Use Part No.ST-1293(A). Belt Tension Gauge to measure the tension of the belt. If the belt tension is less than 50 kg it must be adjusted.
Refer to the Belt Tension Chart. An alternate method (deflection method) can be used to check belt tension by applying 11.3 kg force between the pulleys on v-belts. If the deflection is more than one (1) belt thickness per foot of pulley center distance, the belt tension must be adiusted