GASKET-WOUND 4N1918 - Caterpillar

Illustration 1 g00670686
Instrument Panel Switches (1) Start Aid Switch (SAS) The switch is optional. (2) Voltage Adjust Rheostat (VAR) (3) Panel Light Switch (PLS) (4) Speed Potentiometer (SP) (optional) or Governor Switch (GS) (optional) (5) Emergency Stop Push Button (ESPB) (6) Engine Control Switch (ECS)The engine control switch (ECS) (6) determines the status of the control panel. In the AUTO position (3 o'clock), the GSC+ allows the operator to remotely control and remotely monitor the generator set with a Customer Communication Module. See Systems Operation, "Customer Communication Module". The GSC+ allows the engine to start whenever the remote initiating contact is closed. The engine shuts down after the remote initiating contacts open. An engine cooldown time is programmable (setpoint P019) to give a 0 to 30 minute cooldown period before the engine shuts down. The engine cooldown time is set for five minutes at the factory. The engine starts and the engine runs while the ECS is in the MANUAL START position. In the COOLDOWN/STOP position (9 o'clock), the fuel control solenoid shuts the engine down after a cooldown. In theOFF/RESET position (12 o'clock), the engine shuts down immediately and any fault indicators are reset (except emergency stop while the ESPB is pushed in).If the red emergency stop push button (ESPB) (5) is pressed, the fuel is shut off. The operator must turn the ESPB (5) clockwise until the ESPB releases in order to restart the engine. Next turn the ECS to OFF/RESET and then turn the ECS to the MANUAL START.The voltage adjust rheostat (VAR) (2) connects to the voltage regulator and the VAR is used to adjust generator voltage to the desired level. The VAR is used in place of the voltage level rheostat. The voltage level rheostat is located on the generator voltage regulator assembly.The optional speed adjust potentiometer (SP) (4) is used to raise the engine speed. The optional speed adjust potentiometer is used to lower the engine speed when an electronic governor is used. An optional governor is mounted in this location if a governor with a speed adjust motor is used.The panel light switch (PLS) (3) turns ON the panel lamps and turns OFF the panel lamps.The optional start aid switch (SAS) (1) is present only on required generator sets. The start aid system is a manual shot type of system and the start aid system is a metered shot type of system. When the SAS (1) is placed and the SAS is held in the ON position (momentary contact), the metered shot start aid system is activated. A specific amount of ether is metered into a holding chamber. When SAS (1) is released, a solenoid allows ether to flow to the engine. The metered shot start aid system deactivates when the following conditions are present.
The contacts of the run relay (RR) open.
The engine coolant temperature is sufficient to open the start aid temperature switch (SATS).
The SAS (1) is released to the OFF position.
Crank the engine before you activate (keep SAS in OFF