Belt And Belt Tension - Inspect And Adjust - Mitsubishi S16R Operating Instructions Manual

Chapter 8 PERIODIC INSPECTION AND MAINTENANCE PROCEDURES

Belt and Belt Tension - Inspect and Adjust

If defects such as cuts or surface separations are found during inspection, replace the belt.
Keep oil and grease away from the belt. They may cause the belt to slip and shorten the service life.
Excessive belt tension can cause rapid wear of the alternator bearing and shorten the service life of the belt.
Adjust the belt tension accurately by following the procedures below.
Belt - Inspect
1. Inspect the belt visually for separation or damage. If any abnormality is found, replace the belt with a new one.
2. Inspect belt tension (deflection) and pressing force.
V-belt
Push the belt downward at the midway between pulleys with approximately 98 to 147 N {10 to 15 kgf} [22.05 to
33.05 lbf]. If the deflection is 10 to 15 mm [0.39 to 0.59 in.], the tension is correct. If the deflection of belt is not within
the standard, adjust the belt tension.
Ribbed belt
Refer to Table 8-1 "Ribbed Belt Tension
belt downward till 15 mm [0.59 in.] at the midway between pulleys with gauge.
Belt Tension (Alternator Side) - Adjust
1. Remove the belt cover.
2. Loosen all retaining bolts of the alternator and ad-
justing rod.
3. Loosen the upper and lower lock nuts on the ad-
justing rod.
Note: That the lower nut on the adjusting rod has left-
hand threads.
4. Turn the adjusting rod to adjust the belt tension.
5. After adjusting deflection, fix the upper and lower
lock nuts.
6. Tighten all retaining bolts of the alternator and ad-
justing plate.
7. Reinstall the belt cover and front cover.
8-2
Force", adjust the pressing force if it is not average level when pushing the
Fixing bolt
Fig. 8-1 Belt and Belt Tension - Inspect and Adjust
V-belt Width Approx.
10 mm [0.39 in.]
Approx.
10 to 15 mm
[0.39 to 0.59 in.]
15 mm [0.59 in.]
Pressing force
Gauge
Ribbed belt
Lock nut (left-hand thread)
Adjusting rod
Lock nut (left-hand thread)