Electrical Maintenance 8-2
ALTERNATOR (AUSTRALIAN BOSCH)
Charging System Diagnostic Procedures
NOTE: Units manufactured with CYCLE-SENTRY and alternators with integral regulators MUST use replacement
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.
Complete the following checkout procedure before replacing the voltage regulator or the alternator.
• When testing alternators use accurate equipment such as a Thermo King (FLUKE 23) digital multimeter and a Thermo King
amp clamp or an equivalent.
• Make sure the drive belts and pulleys of the charging system are in good condition and are adjusted properly before testing
the alternator. Worn belts and pulleys or loose belts will lower the output of the alternator.
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