Perkins 4016-61 TRG Operation And Maintenance Manual page 48

48
Maintenance Section
Belts - Inspect/Adjust/Replace
2. Loosen the fasteners for the air pipes (not shown).
3. Remove the guards (not shown).
Illustration 35
4. Inspect the belts (1) for cracks. Inspect the belts
for contamination. If necessary, replace the belts.
Refer to "Replacement" for more information.
5. The belt tension must be checked at position
A. Use a suitable spring balance and a suitable
straight edge in order to check the belt tension.
6. The belt tension should be 24 to 36 N
(5.39544 to 8.09316 lb) with a maximum deflection
at position B of 8 mm (0.314 inch).
7. Adjust the belts if the belt tension exceeds 36 N
(8.09316 lb). Refer to "Adjustment" for more
information.
8. Tighten the fasteners for the air pipes (not shown)
to a torque of 120 N·m (88.5 lb ft).
9. Install the guards (not shown).
10. Restore the electrical supply to the engine.
Adjustment
1. If necessary, isolate the electrical supply to the
engine. Loosen the fasteners for the air pipes and
remove the guards.
Illustration 36
2. Loosen the locknut (4).
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3. Rotate the rod (3) in order to achieve the correct
tension of belts (1). Refer to "Inspection" for the
correct specification.
4. Tighten the locknut (4) to a torque of 120 N·m
(88.5 lb ft).
5. If necessary, restore the electrical supply to the
engine. Tighten the fasteners for the air pipes and
install the guards.
Replacement
Note: Fan drive belts must be replaced as a set. Do
not replace individual belts.
Removal of the Fan Drive Belts
1. If necessary, isolate the electrical supply to the
engine. Loosen the fasteners for the air pipes and
remove the guards.
2. Loosen the locknut (4).
3. Rotate the rod (3) until the pulley (2) is toward the
center of the engine.
4. Remove the belts (1).
Installation of the Fan Drive Belts
1. Install the belts (1) over the pulleys.
SEBU8604
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