43
Electrical Maintenance
Australian Bosch Alternator
Charging System Diagnostic
Procedures
NOTE: Units manufactured with
CYCLE-SENTRY and alternators with integral
regulators MUST use replacement alternators
with integral regulators.
Complete the following checkout procedure
before replacing 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.
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 F7 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 F7 fuse in place
on the relay board.
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
Figure 17: Check Points for Alternator Test
Summary of Contents for Spectrum DE 30-2
Page 4: ...4...
Page 12: ...Safety Precautions 12...
Page 16: ...Specifications 16...
Page 31: ...Unit Description 31 1 Access Panels 2 Defrost Dampers Figure 12 Back View of Unit 1 2 AGA215...
Page 42: ...Operating Instructions 42...
Page 48: ...Electrical Maintenance 48...
Page 106: ...Structural Maintenance 106...
Page 110: ...Mechanical Diagnosis 110...
Page 114: ...Remote Evaporator Specifications 114...
Page 116: ...Remote Evaporator Maintenance Inspection Schedule 116...
Page 122: ...Remote Evaporator Electrical Maintenance 122...
Page 126: ...Remote Evaporator Refrigeration Service Operations 126...
Page 128: ...Remote Evaporator Structural Maintenance 128...
Page 130: ...Remote Evaporator System Diagnosis 130...
Page 134: ...Wiring and Schematic Diagrams Index 134...
Page 135: ...135 Schematic Diagram Page 1 of 2...
Page 136: ...136 Schematic Diagram Page 2 of 2...
Page 137: ...137 Wiring Diagram Page 1 of 4...
Page 138: ...138 Wiring Diagram Page 2 of 4...
Page 139: ...139 Wiring Diagram Page 3 of 4...
Page 140: ...140 Wiring Diagram Page 4 of 4...