Volvo Penta TMD22 Wartungshandbuch Seite 119

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117
Electrical system
Repair Instructions
Generator, replacement
(22A-01)
To prevent damage to the diodes and resistance,
the following instructions must be followed.
Do not disconnect the battery when the engine
is running. This causes an increase in voltage
in the generator charging system, which may
cause damage to the diodes or transistors.
Do not disconnect any electrical cables until
the engine has stopped and all electrical
switches are in the OFF position.
Do not cause a short-circuit by connecting
electrical cables to the wrong socket. The cor-
rect identification of electrical cable to socket
must be carried out. A short-circuit or incorrect
connection, which reverses polarity, may cause
lasting damage to diodes and transistors.
Do not connect a battery to the system until it
has been checked for the correct polarity and
voltage.
Do not check whether a cable is carrying cur-
rent by seeing if it sparks, as this may damage
the transistors.
Removing
1
Disconnect the electrical connections at the genera-
tor.
2
Detach the generator mounting from the pivot
mounting and the mountings for the adjuster link.
3
Slacken off the belt tension and remove the belt.
4
Remove the adjuster link from the generator and re-
move the pivot shaft. Note the position of the wash-
er to ensure that it is correctly installed. Remove
the generator (A).
Installation
5
Place the generator in position and loosely install
the pivot mountings and the mountings for the ad-
juster link. Check that the washer is installed in the
correct position and that the generator pulley is
aligned with the crankshaft pulley.
6
Install the drive belt and adjust the pulley. Tighten
the mountings for the adjuster link and the pivot and
check the belt tension again.
7
Connect the electrical connectors to the generator.
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