Belts - Inspect/Adjust/Replace - Perkins 4006-23 Operation And Maintenance Manual

56
Maintenance Section

Belts - Inspect/Adjust/Replace

Illustration 38
3. Each belt must be checked.
4. Loosen nuts (4) on fan adjuster plate (5). Loosen
lock nut (3).
5. Turning bolt (2) counter-clockwise will adjust fan
pulley (6) and loosen the fan belts (7).
6. Turning bolt (2) clockwise will adjust fan pulley (6)
and tighten the fan belts (7).
7. When the fan belts (7) are at the required tension,
tighten nuts (4) to a torque of 85 N·m (62 lb ft).
Then, tighten nut (3) securely.
8. Install guards (1) and restore electrical power to
the engine.
Replace
Refer to "Disassembly and Assembly Manual"V-Belts
(Fan Drive V-Belts) - Remove and Install for more
information.
Belts - Inspect/Adjust/Replace
(Alternator Belt)
Inspection
1. Isolate the electrical supply to the engine.
g06079895
Illustration 39
Typical example
2. Loosen the bolts (1) and (3). Remove the guard (2)
from alternator (4). If necessary, loosen the bolts
(5) and(7) and remove lower guard (6).
3. Inspect the belt (10) for cracks. Inspect the belt for
contamination. If necessary, replace the belt.
Refer to "Replacement" for more information.
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