SEAL (3.999" Diameter) 8J2331 - Caterpillar

For point to point wiring diagrams, make reference to section in this manual, Point to Point Wiring Diagrams. For specifications on components located on the engine, make reference to the ENGINE SERVICE MANUAL.
CONTROL PANEL DOOR (FRONT VIEW)
CONTROL PANEL DOOR (Top View with Door Open) ACAAC AmmeterACVAC VoltmeterADRAlarm Disconnect RelayARArming RelayATDArming Delay TimerAUXAuxiliary RelayAVSAmmeter-Voltmeter Phase Selector SwitchCDMCooldown ModuleDCVDC VoltmeterENFREngine Failure RelayF1, F2, F3, F4FuseGSGovernor SwitchHzFrequency MeterOCTOvercrank TimerOPGOil Pressure GaugePLSPanel Lights SwitchPRPreregulatorRPRReverse Power RelayRPSRReverse Power Slave RelayRRRun RelaySASStarting Aid SwitchSLSynchronizing LightTBATerminal Board ATBBTerminal Board BTBCTerminal Board CVARVoltage Adjust RheostatWARWarning Alarm RelayWTGWater Temperature Gauge2301Governor (Electronic)Standard Components
All panels will have the following standard components. The automatic start/stop module and the manual start/stop module are options and one or the other has to be selected (make reference to section, OPTIONAL COMPONENTS).Ammeter-Voltmeter Phase Selector Switch (AVS) (Make reference to the AC Schematic)
To avoid personal injury due to electrical shock, make sure jumpers are installed correctly on the AVS.
Each of the three positions 1, 2 and 3 allows the operator to check generator output current and voltage for each of the phases 1, 2 and 3 respectively. AC current and AC voltage are checked on the AC ammeter (A) and AC voltmeter (V) respectively.AC Ammeter (A) (Make reference to the AC Schematic)
AC ammeter (A) gives an indication, in amperes, of the current from each phase of the generator to the load. The AVS connects the ammeter to the current transformers (CT1, CT2 or CT3) on phases (T1, T2 or T3) respectively (make reference to the AVS chart). The CT's transform the actual line current, in its respective phase lead, to a level (approximately 0 to 5 amperes) within the input range of the ammeter. The ammeter is calibrated (has marks) to give an indication of the actual current flow in one phase of the generator.AC Voltmeter (V) (Make reference to AC Schematic)
The AC voltmeter (V) shows the potential difference (voltage) between phases T1-T2, T2-T3, or T3-T1 at positions 1, 2 or 3 respectively of the AVS.Frequency Meter (Hz) (Make reference to ACS Schematic)
Frequency meter (Hz) shows the frequency in hertz (cycles per second) of the electricity made when the generator set is in operation. There is a direct relation between the frequency of the electricity and the rpm of the generator set, as shown in following formula: Connection of the frequency meter to the AC circuit is different depending on whether the control panel is 600 V.A.C. or all others.
AC SCHEMATICS (JIC)
AC SCHEMATICS (IEC) Voltage Adjust Rheostat (VAR) (Make Reference to AC Schematic)
Voltage adjust rheostat (VAR) is located below the voltmeter and to the left of the frequency meter on the panel front. The rheostat (VAR) takes the place of the voltage level rheostat (R2) located on the generator regulator assembly. It is used to adjust the voltage output of the generator. Make reference to Form No. SENR7968, SR-4 Generator; OPERATION OF GENERATOR; REGULATOR ADJUSTMENT. On generators equipped with a generator mounted control panel, the yellow wire from voltage level rheostat (R2) on the