MAINTENANCE MAINTENANCE PROCEDURE
4-63
CHECK AND ADJUST COOLING FAN BELT TENSION 4
Checking 4
Deflection (a) should be 6 to 10 mm at a point midway between
the alternator pulley and fan pulley when pressed with a finger
force of approx. 58.8 N (6 kgf).
(A): Alternator pulley
(B): Fan pulley
(C): Crankshaft pulley
Adjustment 4
1. Loosen bolts and nuts (2) and (3).
2. Loosen locknut (4) and move alternator (1) with adjustment
bolt (5) so that the deflection of the belt is 6 to 10 mm
when pressed with a finger force of approx. 58.8 N (6 kgf).
3. Tighten locknut (4) and bolts and nuts (2) and (3) to hold
alternator (1) in position.
4. Check for damage to the pulleys, and wear of the V-groove and V-belt. Be particularly careful to check that the
V-belt is not in contact with the bottom of the V-groove.
5. If the belt has elongated and there is no more allowance for adjustment, or if the belt is cut or cracked, replace
the belt.
6. After replacing the V-belt, operate for one hour, then adjust again.
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