CABLE AS 4173539 - Caterpillar

Illustration 1 g00588901
Stop the engine. Open the engine access door on the right side of the machine.Alternator Belt
Illustration 2 g00596358
To check the belt tension, apply 110 N (25 lb) of force midway between the pulleys. Correctly adjusted belts will deflect 13 to 19 mm (1/2 to 3/4 inch).
In order to adjust the alternator belt, loosen bracket bolt (1) and mounting bolt (2) on the alternator bracket.
To achieve the correct adjustment, move the alternator inward or move the alternator outward, as required.
If necessary, use a pry bar in the square hole (3) in the alternator bracket.
Tighten mounting bolt (2) and bracket bolt (1) .
If new belts are installed, check the belt adjustment again after 30 minutes of engine operation at the rated speed.Water Pump Belt
Note: The water pump is located below the alternator.
To check the belt tension, apply 110 N (25 lb) of force midway between the pulleys. Correctly adjusted belts will deflect 13 to 19 mm (1/2 to 3/4 inch).
Illustration 3 g00613760
To adjust the water pump drive belt, loosen mounting bolt (1) and bracket bolt (3) .
Move idler pulley (4) in order to achieve the correct adjustment.
If necessary, use a pry bar in square hole (2) in the mounting bracket.
Tighten mounting bolt (1) and bracket bolt (3) .
If a new belt is installed, run the engine at rated speed for thirty minutes. Check the bolt torque. Readjust the belt, if necessary.