SEBU8455
67
Maintenance Section
Belt Tensioner - Check
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Belt Tensioner - Check
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Illustration 37
Typical example
1.
Remove belt, refer to this Operation and
Maintenance Manual, “Alternator and Fan Belts-
Replace”.
2.
With the belt removed check the alternator pulley
(1), the fan pulley (6), and water pump pulley (4).
Ensure that all these pulleys rotated freely. Ensure
that all pulleys are clean and free from damage
including the crankshaft pulley (5).
3.
Check the pulley (3) on the tensioner. Ensure that
the pulley can rotate freely. Check the bearing for
lateral movement.
4.
Check the securing bolt (2). The torque for the bolt
is 50 N·m (37 lb ft).
g02865556
Illustration 38
Typical example
5.
Install a suitable tool into the half inch square hole
(7). Rotate the tensioner between the point (A) and
point (B). Ensure that there is an even resistance
when rotating between the two travel points.
Replace parts as necessary, for replacing the
tensioner. Refer to Disassembly and Assembly, “Belt
Tensioner - Remove and Install”.
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Belt - Inspect
Inspect the belt for wear, cracks, spites, grease,
damage to the cord, or
fl
uid contamination.
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Coolant (Commercial
Heavy-Duty) - Change
NOTICE
Care must be taken to ensure that
fl
uids are contained
during performance of inspection, maintenance, test-
ing, adjusting and repair of the product. Be prepared to
collect the
fl
uid with suitable containers before open-
ing any compartment or disassembling any compo-
nent containing
fl
uids.
Dispose of all
fl
uids according to Local regulations and
mandates.