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Service Manual Mitsubishi SL-Series diesel engines
Version 08/2004
ELECTRICAL SYSTEM
ENGLISH
DISASSEMBLY
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4) Connect the magnetic switch to a 12 volt
battery with a switch as shown in the
illustration to make a pinion return test. Close
the switch and pull the pinion away from the
commutator end by hand. Release the pinion
to see if it returns immediately when released.
If the pinion fails to so return, the magnetic
switch is faulty.
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9.1.2 Removal
1. Disconnect the battery wires. Disconnect the
negative (â) wire first.
2. Disconnect wire (1) from the starter.
3. Loosen bolts (2) (two) holding starter (3) in position
and remove the starter.
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9.2 Alternator
9.2.1 Inspection before removal
The correct diagnosis of the charging system requires
a careful inspection with the alternator on the engine to
determine whether or not it is necessary to remove the
alternator from the engine for further inspection. The
following chart, in which two troubles are listed with four
possible causes of each, will help locate the cause of
the trouble:
Figure 11 Connections for pinion return test
Connector disconnected
Battery
(12 volts)
îîCAUTION
Due to the amount of current being passed through
the solenoid series winding, this test must be made
within 10 seconds.
Figure 12 Removing starter
Figure 13 Alternator on engine
Alternator charge
too high
Voltage regulator setting too high
Ground return circuit defective
Wiring incorrect
Series resistor or winding open-circuited
Alternator gives
no charge
Alternator drive belt loose
Voltage regulator setting too low
Alternator output low
Brushes worn
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