PERIODIC SERVICE136
EVERY 400 HOURS
BChecking Fan / Air-conditioner Belt
Tension
[M6-131, M6-141]
To avoid personal injury or death:
A Be sure to stop the engine before checking belt
tension.
The belt is of self-tension type and needs no
readjustment. Check the belt tension in the following
procedure. If the deflection is out of spec or the belt itself
is found damaged, replace it with new one.
1. Stop the engine and remove the key.
2. Press on the spot indicated in the figure below to
measure the deflection.
C Replacing the belt
1. Loosen the lock nut first and then fully loosen the
tension bolt.
2. Lift the tension pulley and remove the belt.
3. Fit the new belt instead as shown below.
4. Tighten the tension bolt until the tension spring end
comes in close contact with the engine body. Finally
tighten up the lock nut.
Proper belt
tension
A deflection of between 9 to 11 mm (0.35
to 0.47 in.) when the belt is pressed (98 N
[22.1 lbs]) in the middle of the span.
(New belt: 7 to 9 mm [0.28 to 0.35 in.])
(1) Fan / Air-conditioner belt (A) Check the belt tension
(1) Tension bolt
(2) Lock nut
(3) Self-tension pulley
(4) Self-tension spring
(1) Belt
(2) Tension spring end
(3) Tension bolt
(4) Lock nut
(5) Self-tension pulley
Tightening
torque
Tension bolt below 15 N-m (11.1 ft-lbs)
Lock nut
123.6 to 147.1 N-m
(91.2 to 108.5 ft-lbs)