63
PERIODICAL INSPECTION AND MAINTENANCE
.
7/20, P65
(2) Checking and adjusting cooling fan V
−
belt
When there is not enough tension in the V
−
belt, the V
−
belt will slip
making it impossible for the alternator to generate power and cooling
water pump and cooling fan will not work causing the engine to
overheat. Check and adjust the V
−
belt tension (deflection) in the
following manner.
1) Press
the V
−
belt
down with your thumb [approx. 100N(10.2kgf)]. at
the middle of the V
−
belt span to check the tension (deflection).
The specified deflection should be as follows.
A
7
9mm
D.
Radiator fan
E.
Set bolt
F.
Alternator
G.
Deflection
H.
Press with thumb
I.
Crankshaft V
−
pulley
J.
V
−
belt
2) If necessary, adjust the V
−
belt tension (deflection). To adjust the
V
−
belt tension, loosen the set bolt and move the alternator to tighten the
V
−
belt.
3) Visually check the V
−
belt for cracks, oiliness or wear. If any , replace
the
V
−
belt with
new one.
(Adjusting the V
−
belt tension)
A.
Adjust the V
−
belt tension by prying with a wooden bar
B.
Alternator
C.
Adjusting bracket
Use of genuine Ingersoll Rand fan belt
Always use genuine Ingersoll Rand fan belts as they provide high
driving ability and long operating durability. Use of non
−
Ingersoll Rand
fan belts could result in premature belt wear or belt elongation leading
to engine overheating or excessive belt noise.
CAUTION:
To help avoid being injured, check and adjust the fan belt tension with
engine stopped.