Check the belt for insufficient tension, wear
and damage, and adjust it properly in order to
maintain the maximum engine performance and
the service life.
1.
Use the starter key to release the lock,
open the right side cover of the machine
and support it with the stay.
2.
Loosen attaching nut (1) and adjusting bolt
(2) slightly.
3.
Loosen adjusting bolt (3), adjust the fan
belt to the specified tension, and tighten
attaching nut (1) and adjusting bolt (2).
4.
After adjustment, run the engine at low
idle for about 5 minutes and then check
the belt tension again.
5.
Step the engine and check the fan belt
tension.
6.
Release the support stay, close the side
cover, and lock it with the starter key.
Belt
Tension of new belt
Tension of belt in use
Pushing force
Fan
8 to 12 mm (0.32 to 0.47 inch)
10 to 14 mm (0.39 to 0.55 inch)
98 N (22 lbf)
4.14
250 HOUR (3-MONTH) INSPECTION & MAINTENANCE
PROCEDURES
Thoroughly read and understand "1. SAFETY PRECAUTIONS" of this manual before performing the
inspection and maintenance.
Follow this section together with daily and 50-hour inspection and maintenance.
4.14.1
ADJUSTING FAN BELT TENSION
Be sure to stop the engine before inspection and maintenance. Inspecting and maintaining the running
engine may cause injury by being caught in the cooling fan or fan belts.
Be sure to check the deflection and tension after adjusting the tension and tightening screws.
[
4. INSPECTION AND MAINTENANCE
]
4-46
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