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Check and Adjust Fan Belt Tension
--- every 100 hours (first time after 50 hours)
IMPORTANT: Loose fan belt tension may result in in-
sufficient battery charging, engine
overheating as well as a rapid, abnormal
belt wear. Belts that are too tight, how-
ever, can damage both water pump and
alternator bearings, and belts.
Check
Check fan belt tension by depressing the fan belt
mid-point with the force [approx. 98 N (10kgf, 22 lbf)] of
thumb. Deflection must be 7 to 9 mm (0.28 to 0.35 in) at
a mid point between fan pulley (1) and alternator pulley
(2).
In addition, check the fan belt for any damage. If the belt
has any cracks, replace the belt with a new one.
Adjustment of Fan Belt Tension
1. Remove wing bolt (3) from the right side of the seat
and switch box (4) to open the inspection door.
2. Loosen mounting bolts (6) of alternator (5).
3. Move alternator (5) to correctly adjust the fan belt
tension.
4. Securely tighten bolts (6).
IMPORTANT: When a new belt is installed, the new belt
is difficult to be correctly seated from
the beginning. Be sure to readjust the
tension after operating the engine for 3
to 5 minutes at slow idle speed.
MAINTENANCE
4
3
5
7-44
Deflection
7 to 9 mm
(0.28 to 0.35 in)
1
Push
[Approx.98 N (10 kgf, 22 lbf)]
2
M589-07-014
3
M1M7-07-045
M1M7-07-046
6
6
M1M7-07-047
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