Service manual

G420F(FE) Service Manual Chapter 2. Recommended Maintenance 20
Adjusting Timing Belt Tension
Adjust the tension as the following order.
1. Remove the fan drive bracket.
2. Loosen the timing belt upper cover bolt (B) and
disconnect the upper cover (A).
3. As the illustration, insert the hex wrench to the
adjuster groove and turn it counterclockwise to
move the arm indi-cator in the middle of the base
groove.
CAUTION
If it is turned in reverse direction, be sure that
the tensioner may function abnormally.
4. Tighten the tensioner fixing bolt with the arm
indicator fixed.
Tightening torque 2.3~2.9kgf·m
5. Rotate the crankshaft 2 turns clockwise and make
sure the auto tensioner arm indicator is placed in
the middle of the base groove.
6. If the arm indicator is out of the middle, loosen the
bolt and repeat the previous procedure.
7. Install the timing belt upper cover (A) and tighten
the bolt(B).
Tightening torque 0.8~1.0kg·m