Volvo Penta KAD32 Instruction Book page 33

5
B
D
31, 41
1
3
4
1
2
C
D
32, 43
Exhaust system. Check
The exhaust system in the drive installations must be
checked every year for corrosion damage between
hose (1) and the pipe (2).
WARNING! Risk of water penetration. Checking
the exhaust system should be carried out with
the boat on land.
If there is heavy corrosion the pipe should be re-
paired or replaced with a new one.
To check: Undo the clamp (3) and the two lower
clamps holding the hose (1). Raise the elbow (4) so
the hose frees off from the pipe. Check the mating
surface (5). If there is heavy corrosion the pipe should
be repaired or replaced with a new one.
Drive belts. Check and adjust
WARNING! Always turn the engine off before
starting maintenance work.
B
The coolant pump and generator can be damaged if
the drive belts are too tight, and slip if they are too
loose.
A
Check the drive belt tension regularly by pressing
down the belts using thumb pressure at the check
points (A, B, C and D) as shown below for the different
belts. Adjust as required. Check and adjust as
necessary after operating the engine when the belts
are warm.
Check that the belts are not cracked or damaged.
Worn belts must be replaced.
Adjusting and replacing
IMPORTANT! Tighten the belts as described be-
low to avoid unequal stress on the units.
1. Circulation pump
Undo the bolt (1) enough so the belt slackens off. In-
sert an Allen key in the hole and turn the belt tensioner
counter clockwise so the belt is correctly tensioned.
Tighten bolt (1). At the correct belt tension it should be
possible to depress the belt approximately 5 mm at
(A).
31