39
Electrical Maintenance
ALTERNATOR (AUSTRALIAN BOSCH)
Charging System Diagnostic Procedures
NOTE: Units manufactured with CYCLE-SENTRY and
alternators with integral regulators MUST use replace-
ment alternators with integral regulators.
CAUTION: Full-fielding alternators with the
integral regulator is accomplished by installing a
jumper from terminal F2 to ground. Attempting to full-
field the alternator by applying battery voltage to terminal
F2 will cause voltage regulator failure.
CAUTION: The F15 fuse must be removed from the
relay board on units equipped with the Australian
Bosch alternator. The voltage regulator will be damaged if
the unit is turned ON with the F15 fuse in place on the
relay board.
Complete the following checkout procedure before replac-
ing the voltage regulator or the alternator.
•
When testing alternators use accurate equipment such
as a Thermo King P/N 204-615 (FLUKE 23) digital
multimeter and a Thermo King P/N 204-613 amp
clamp or an equivalent.
aea692
1.
Check Point for 2A Amperage
3.
Check Point for Sense Circuit and
Excitation Circuit Voltages
2.
Check Point for B+ Voltage
4.
Position for Full Fielding Jumper
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