Service manual

G420F(FE) Service Manual Chapter 2. Recommended Maintenance 24
Adjusting
1. Loosen the alternator support bolt “A” nut and
adjusting lock bolt “B”.
2. Adjust the belt tension by moving the alternator
brace adjusting bolt to “T” direction.
Alternator adjusting lock bolt “B” 1.2~1.5kg·m
Alternator support bolt “A” 2~2.5kg·m
3. Tighten the bolt “A” and then tighten “B” to the
specified torque.
CAUTION
If the belt tension is too excessive, noise as well
as early wear of belt occurs and the water pump
bearing and alternator bearing are damaged.
If the belt is too loose, due to early wear of belt
and insufficient power of alternator, battery and
water pump become inefficient and finally en-
gine is overheated or damaged.
Checking Belt for Damage
Check the following items and replace the belt if
defective.
1. Check the belt surface for damage, wear and
crack.
2. Check the belt surface for oil or grease
contamination.
3. Check the rubber part for wear or hardening.
4. Check the pulley surface for crack or damage.
Crank
pulley