Volvo Penta AQ145A Workshop Manual page 43

127. Then fit the belt tensioner carefully so that the belt
is not damaged. Turn the belt tensioner so that
the spring rod (1) can be pushed onto its shaft
and the guide pin (2) can be pushed into the hole.
Use no tools otherwise the belt can be damaged.
Fit a washer and tighten the nut.
128. Compress the spring with a polygrip or similar
tool and then remove the pin which has held the
spring in the compressed position. Undo the nut
so that the spring tensions the belt. Then tighten
the nut.
129. Turn the crankshaft clockwise a few degrees.
This is to take up the backlash between the pul-
leys. NOTE! Do not turn the crankshaft
anti-clockwise otherwise the belt can hop over
teeth and alter the adjustment.
130. Loosen the nut on the belt tensioner againso that
the spring tensions the belt. Check that the belt
tensioner can move around its shaft. Then tighten
the nut again. The tightening torque is 50 Nm (5.0
kpm) (36.9 lbf. ft.). Then rotate until the marking
agrees for the crankshaft and check the marking
for the intermediate shaft and the camshaft. The
belt is to be tensioned once every season and to
be changed every 500 hours.
41