Volvo Penta 31 Series Workshop Manual page 90

Repair Instructions
Drive belts, tensioning
32/42/43/44 series (early model)
Applies to the following engines:
32 series up to engine number 2203202197
KA(M)D42 series,
TAMD42WJ up to engine no. 2204216366
43 series up to engine number 2204303258
44 series up to engine number 2204404631
Special tools: 1159 660
64
Check belt tension with tool no. 1159 660. Make the
check at the points on the belt specified for each belt.
Tension the belt, zero the tool (press arm "A" down)
and put the tool on the belt. Put a finger (pressure
point) on the check point as in the illustration. Then
press the tool against the belt until a click is heard.
NOTE! It is important that the tool touches the belt at
surface "B" when you press the belt. Read the value
on the tool. Tension or slacken the belts as necessa-
ry.
IMPORTANT! Tighten the belt tensioner before doing
the check. Tension the belts in the following order
(items 64–67) to avoid unbalanced loading.
65
Inspection points, drive belts,
1. Supercharger belt
3. Alternator belt
88
5. Water pump belt
7. Servo pump belt
66
Circulation pump belts (double V-belts)
(only KA(M)D42 up to engine no. 2204208023)
5B
The check point for the belts is at (5B), 80 mm
(3.1496") down from the center of the belt tensioner
roller.
6B
Adjust with belt tensioner (6B). Belt tension 20–25 kg
(44-55.1 lb)