Cummins/Onan — - @- Oem

For these Cummins/Onan models: PE-95-(1), PE-95-(2), PE-95-F.

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Procedure

1. 2. 5 OMM SO WATY t (er 1 120 VOLT DUPLEX RECEPTACLE \ | 1 } \ i ! | t | | { | | | | | | | | I \ \ L 7 Oe ee ee eee ee (0) 2-8 VOLT BATT.IN SERIES FOR 120 VOLT OUTPUT JUMPER 384 5&6 ON AC TERMINAL. BLOCK FOR 240 VOLT OUTPUT JUMPER 4.45 ON AG TERMINAL BLOCK (1) With the MANUAL START-REMOTE START switch in REMOTE START position, of the start relay. This closes two pairs of con- tacts on that relay. The closing of the start relay contacts A supplies current to the igni- tion coil: Before reaching the ignition coil, this current passes through the remote start contacts of the MANUAL START-REMOVE START switch and through a voltage-dropping resistor. Cur- rent is also supplied to the coil of the ignition relay causing its contact C to close. This cur- rent passes through the stop relay contacts D to ground. (2) The closing of the start relay contacts B supplies current to the automatic choke and to start solenoid which closes the start switch contacts E. The closing of these contacts sup- plies current to the exciter field causing it to function as a motor and crank the engine. (8) At this stage of the starting cycle, the ignition has been switched on, the carburetor is being choked, and the engine is being cranked. When the engine starts, the oil pump the engine’s speed increases. When this pres- sure reaches approximately 6 pounds, the con- open. The exciter builds up voltage and sup- plies ignition current through another circuit. This current passes from terminal 5, through the battery-charging resistor and regulator group, through the ignition-relay contacts C to the remote start contacts of the ignition switch and through the ignition resistor to the ignition coil. (4) Releasing the START button opens the circuit to the start relay coil and allows con- tacts A and B to open. The opening of contact B stops the electric choking and allows the start switch contacts to open. This opens the cranking circuit. (5) The ignition current being supplied by the exciter does not pass through contacts A and therefore the engine does not stop when the contacts A open. However, if contacts A open before the exciter voltage has built up high enough to supply proper ignition current, the engine will stop upon release of the START button. The engine will also stop if the START built up far enough to open the contacts of the 63 (6) Power Unit PE-95-(2) may be stopped panel or by operating the stop switch at a re- mote station. This energizes the stop relay and opens its contacts D. The opening of these con- tacts de-energizes the ignition relay, allowing its contacts C to open. This opens the ignition circuit and stops the unit. nected to the ignition switch so that the fuel supplied to the ignition system. To read the switch the MANUAL START - REMOTE START switch to REMOTE START position. (8) Remote control circuits are extensions of the local control circuits connected in paral- lel. c. POWER UNIT PE-95-F. Basically, the operation of the electrical control circuits on Power Unit PE-95-F are the same on Power Unit PE-95-(2). See the wiring diagram,
2. 51. Governor

Source: manual:TM 11-904 PE-95 (Spec abcfgh) 10KW Military Generator Technical Manual 07-1945().pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.