G643(E) Service Manual Chapter 2. Recommended Maintenance 23
Checking and Adjusting Drive Belt
1. Checking tension
1) Press the middle of the water pump pulley and
alternator pulley with 10kgf.
2) Inspect the belt deflection by pressing it.
3) If the belt deflection is out of the standard,
Inspect the belt tensioner.
(The belt tensioner is pre-set and spring
loaded)
Standard
Item
New belt Used belt
Drive belt deflection (L) 4.0~4.4mm 5.1~5.7mm
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.