Inspection - Mitsubishi S3L Service Manual

ALTERNATOR
Check for cracks or
other defects.
Test for open or short
circuit using the
procedure that follows.
Figure 187 Inspection points
Trio-diodes
Heat sink (+)
Figure 188 Testing diode
124 / 195 124 / 195
Test for open or short
circuit usingthe procedure
that follows.
Heat sink (-)
Diode lead wires
ENGLISH
ELECTRICAL SYSTEM

30.2 Inspection

Check for cracks or
other defects.
Check for wear.
30.2.1 Diodes
1. Test the resistance between the diode and heat
sink. First touch the positive (+) prod of an
ohmmeter to the diode, then the negative (–) prod.
If the resistance is infinite in both cases, the diode
is open. If it is nearly zero in both cases, the diode
is shorted. Do the same step for the remainder of
the diodes. If any diode is open or shorted,
replace the rectifier.
Service Manual Mitsubishi SL-Series diesel engines
Test for open or short
circuit using theprocedure
that follows.
Version 08/2004