Service manual

G420F(FE) 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,
adjust it as follows.
Standard
Item
New belt Used belt
Drive belt deflection (L) 4.0~4.4mm 5.1~5.7mm
2. Using a tension gauge
1) Type
• BORROUGHS BT - 33 - 73F
• NIPPONDENSO BTG – 2
2) How to use
• Insert the belt between the gauge hook and
spindle and press the tension gauge handle.
• Leave the handle and read the gauge.
Standard
New belt Used beltTension(T)
65~75kg 40~50kg
CAUTION
The belt used over 5 minutes should be ad-
justed as used belt of standard
Check that the belt is installed correctly.
When the belt is loosened, slip noise is heard.