Volvo Penta D2-55, Руководство по ремонту

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Group 30 Electrical system
WARNING! Be extremely careful so that the
measurement cables, clothes or similar come
into contact with the drive beltor pulleys on the
engine or alternator when the engine is running.
Check the tension of the alternator belt and the belt
condition. Replace the belt if it is cracked, worn or
oily. Adjust the belt tension as required. It should be
possible to depress the belt approx. 10 mm between
the pulleys.
Current loss check
1. Wash the battery with lukewarm water and dry off.
Remove the battery cables and clean the poles.
2. Reconnect the positive pole (+) again.
3. Turn off the keyswitch or disconnect power to the
instrument panel and all other consumers con-
nected to the starting battery.
4. Set the multimeter for DC current measurement
(+20A). Connect the multimeter between the bat-
tery’s negative pole (-) and the negative cable.
The current loss may not exceed 0.1 A with the
keyswitch or instrument panel disconnected.
If the current loss is greater than 0.1 A:
Check that no short circuits or leakage occurs at
any of the connection points. Leakage can occur
through dirty or salt-encrusted electrical compo-
nents.
Clean and check all connection points.
If the current loss is less than 0.1 A:
Check the charge status of the battery.
Fault tracing the battery circuit
Special tools: 9812519
Note that other instruments may use different sym-
bols for the set measurement function.
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