24. SERVICE PROCEDURE 24.4.4 CHECK, ADJUST ALTERNATOR DRIVE BELT TENSION CHECK The standard deflection for the drive belt is approx. 15 mm (0.59 in) when pressed by thumb (approx. 6 kg (13.23 lb)) at a point midway between the drive pulley and alternator pulley. ADJUSTING 1. Loosen bolts and nuts 1 , 2 and 3 . Alternator pulley 2. Turn nut 4 clockwise, then move alternator 5 to adjust the belt tension so that the deflection is approx. 15 mm (0.59 in) when pushed with a force of 6 kg. About 15 mm (0.59 in) 3. Tighten the bolts and nuts 1 , 2 and 3 to fix alternator 5 in position. Drive pulley 4. Check each pulley for damage, wear of the V-groove, and wear of the V-belt.
In particular, be sure to check that the V-belt is not touching the bottom of the V-groove. 5. If any belt has stretched and there is no allowance for adjust- ment, or if there are cuts or cracks on any belt, replace the belt. 6. When the new belt is set, readjust it after operation for an hour. 3-50