83
Electrical Maintenance
Alternator (Prestolite)
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.
•
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.
•
The battery must be well charged, the battery
cable connections must be clean and tight, and
the 2A and excitation circuits must be
connected properly.
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.
2
1
7
6
3
4
5
AJA1520
1.
EXC Terminal
5.
NEG—B- Terminal
2.
F2 Terminal
6.
POS—B+ Terminal
3.
VOLT SENSE Terminal
7.
REG—D+ Terminal
4.
AC TAP Terminal
Figure 10: Prestolite Terminal Locations
Summary of Contents for 914970
Page 3: ...3...
Page 10: ...Table of Contents 10...
Page 40: ...Operating Instructions 40...
Page 82: ...Electronic Controls 82...
Page 92: ...Electrical Maintenance 92...
Page 124: ...Refrigeration Maintenance 124...
Page 140: ...Hilliard Clutch Maintenance 140...
Page 160: ...Refrigeration Diagrams 160...
Page 163: ...Index 163 W wiring 85 wiring diagrams 165...
Page 164: ...Index 164...
Page 166: ...Wiring and Schematic Diagrams Index 166...
Page 167: ...167 Cab Control RD Wiring Diagram...
Page 168: ...168 RD w o Thermostat Cab Control Schematic...
Page 169: ...169 RD Cab Box Wiring Diagram...
Page 170: ...170 RD Cab Control w Thermostat Schematic Diagram...
Page 171: ...171 RD 50 STD 3 Phase Wiring Diagram Page 1 of 2...
Page 172: ...172 RD 50 STD 3 Phase Wiring Diagram Page 2 of 2...
Page 173: ...173 RD 50 STD 3 Phase Schematic Diagram Page 1 of 2...
Page 174: ...174 RD 50 STD 3 Phase Schematic Diagram Page 2 of 2...
Page 175: ...175 RD 30 STD Wiring Diagram Page 1 of 2...
Page 176: ...176 RD 30 STD Wiring Diagram Page 2 of 2...
Page 177: ...177 RD 30 STD Schematic Diagram Page 1 of 2...
Page 178: ...178 RD 30 STD Schematic Diagram Page 2 of 2...
Page 179: ...179 RD 30 C S Wiring Diagram Page 1 of 2...
Page 180: ...180 RD 30 C S Wiring Diagram Page 2 of 2...
Page 181: ...181 RD w CYCLE SENTRY Schematic Diagram Page 1 of 2...
Page 182: ...182 RD w CYCLE SENTRY Schematic Diagram Page 2 of 2...
Page 183: ...183 RD 50 C S 3 Phase Wiring Diagram Page 1 of 2...
Page 184: ...184 RD 50 C S 3 Phase Wiring Diagram Page 2 of 2...
Page 185: ...185 RD w CYCLE SENTRY Schematic Diagram Page 1 of 2...
Page 186: ...186 RD w CYCLE SENTRY Schematic Diagram Page 2 of 2...