SR 4 GENERATOR
INDEX
SYSTEMS OPERATION
Generator and Regulator Components....................... 14
Generator Mounted Control Panel Attachments ....... 258
Ammeter ......................................................... 266
Auxiliary Relay Module ..................................... 266
Cycle Cranking Module ..................................... 265
Governor Switch .............................................. 266
Heat Switch...................................................... 266
Identification and Location ................................. 258
Prealarm Module ............................................. 263
Remote Annunciator Panel ............................... 267
Synchronizing Lights Module ............................ 266
Wiring Diagrams ........................................259-262
Generator Mounted Control Panel (Type 1 - Prior to
Caterpillar Parts service) ............................. 149
Automatic Start/Stop System............................. 158
Components .................................................... 154
Identification..................................................... 149
Introduction ...................................................... 149
Wiring ............................................................. 149
Wiring Diagrams ........................................150-153
Generator Mounted Control Panel (Type 2-Change level
0 thru 1) .................................................... 170
Automatic Start/Stop System............................. 176
Components .................................................... 173
Identification ..................................................... 170
Introduction ...................................................... 170
Wiring Diagrams ........................................171-172
Generator Mounted Control Panel (Type 3-Change level
2 thru 8) .................................................... 188
Automatic Start/Stop System............................. 198
Components .................................................... 194
Identification..................................................... 188
Introduction ...................................................... 188
Wiring Diagrams ........................................189-192
Generator Mounted Control Panel (Type 4-Change level
9 thru 11) ................................................... 210
Automatic Start/Stop System............................. 219
Components .................................................... 216
Identification..................................................... 210
Introduction ...................................................... 210
Wiring Diagrams ........................................211-214
Generator Mounted Control Panel (Type 5 - Change
level 12) .................................................... 232
Automatic Start/Stop System............................. 242
Components .................................................... 238
Identification..................................................... 232
Introduction ...................................................... 232
Wiring ............................................................. 232
Wiring Diagrams .........................................233-237
Glossary..................................................................... 5
How to Read Control Panel DC Schematics ............ 148
Identification............................................................... 8
Operation of Governor............................................... 23
Excitation Circuit................................................. 26
Excitation Circuit Control .................................... 30
Flyback Circuit.................................................... 32
Introduction ........................................................ 24
Manual Voltage Control Attachment .................... 50
Normal Voltage Generation ................................ 30
Output Voltage Sensing ...................................... 34
Power Supply for Regulator Module A1................ 36
Protection of Generator Circuits .......................... 41
Radio Frequency Interference (RFI) Suppression . 40
Regulator Adjustment ......................................... 42
Regulator Gain Circuit......................................... 38
Series Boost Attachment ..................................... 43
Start up Voltage Generation ................................ 24
Voltage Build-up Circuit ...................................... 28
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