94 Maintenance Section Belts - Inspect/Adjust/Replace 3. Disconnect the negative battery cable from the disconnect switch. 1. Access the alternator from the left side of the machine. Note: Do not allow the disconnected battery cable to contact the disconnect switch. 2. Inspect the condition of the alternator belt. If the belt is cracked or frayed, replace the belt. 4. Disconnect the negative battery cable at the battery. 3. Use a BT-33-97 Borroughs Gauge to check the tension of the alternator belt. 5. Disconnect the positive battery cable at the battery. The tension of a used belt with more than 30 minutes of operation at rated speed should be 400 ± 44 N (90 ± 10 lb).
The tension of a new belt with 30 minutes of operation or less at rated speed should be 534 ± 22 N (120 ± 5 lb). 6. Make any necessary repairs. If necessary, replace the battery. If necessary, replace the battery cables. 7. Connect the positive battery cable at the battery. Adjusting the Tension of the Alternator Belt 8. Connect the negative battery cable at the battery. 9. Connect the battery cable at the battery disconnect switch. 10. Install the key and turn the battery disconnect switch ON. i01557085 Belts - Inspect/Adjust/Replace SMCS Code: 1357-025; 1357-040; 1357-510 Note: Stop the engine before you perform any of the following procedures. g00592143 Illustration 136 1.
Loosen one mounting bolt (4) and adjustment bolt (2). Alternator Belt 2. Insert a ratchet with a square drive into the hole in mounting bracket (1). Use the ratchet as a lever to rotate alternator (3). Rotate the alternator until the correct belt tension is reached. 3. Tighten adjustment bolt (2) and mounting bolt (4). 4. Recheck the tension of belt (5). If the tension of the belt is incorrect, repeat the adjustment procedure. Air Conditioner Belt 1. Access the compressor from the right side of the machine. 2. Inspect the condition of the air conditioner belt. If the belt is cracked or frayed, replace the belt. g00809512 Illustration 135 3.
Use a BT-33-97 Borroughs Gauge to check the tension of the air conditioner belt.