PUMP GP-FUEL TRANSFER 2925906 - Caterpillar

Instrument Panel Switches
Illustration 1 g00474506
Instrument Panel Switches (1) Speed potentiometer ( SP) (2) Engine control switch (ECS) (3) Optional starting aid switch (SAS) (4) Voltage adjust rheostat (VAR) (5) Emergency stop push button (ESPB) (6) Optional panel light switch (PLS)The engine control switch (ECS) (2) determines the status of the control panel. When the ECS is in the AUTO position and the remote starting contacts are closed, the GSC allows the engine to start. The engine also shuts down after the initiate contacts open. The cooldown period is programmable in order to give a 0 to 30 minute cooldown period before the engine shuts down. The cooldown period is factory set at five minutes. In the MANUAL START position, the engine starts and runs as long as the ECS is in this position. When the ECS is in the COOLDOWN/STOP position and the cooldown is completed, the engine is turned off. In the OFF/RESET position, the engine shuts down immediately and any fault indicators are reset, except emergency stop.When the emergency stop push button (ESPB) (5) is pressed, the fuel is shut off. Restart the engine by turning the ESPB (5) clockwise, until the switch releases. Turn the ECS to the OFF/RESET position. Then turn the ECS to the MANUAL START position.The voltage adjust rheostat (VAR) (4) is used to adjust the generator voltage to the desired level.The speed adjust potentiometer (SP) (1) controls the engine speed. The optional panel light switch (PLS) (6) turns the panel lamps ON and OFF. The starting aid switch (SAS) (3) allows the engine ECM to control the ether injection system. The ether injection system improves the cold starting capability of the engine. The AUTO position is the normal position of the switch. The system is always in AUTOunless the switch is in MANUAL. Two operation modes of the ether injection system exist: Manual - The manual position is momentary and the SAS must be held in this position in order to allow the ether system to operate in manual mode. Manual mode allows ether to be injected for a maximum of 130 seconds whenever the engine coolant temperature is less than 30°C (86°F) and the engine speed is greater than 50 rpm.Automatic - This is the normal position of the SAS. The ether system is in automatic mode without operator input whenever the engine is started. In automatic mode, ether will be injected for a minimum of 15 seconds whenever the engine coolant temperature is less than 30°C (86°F) and the maximum of 130 seconds at -50°C (-58°F). The automatic ether injection system is disabled whenever the engine rpm exceeds 400 rpm or the engine coolant temperature exceeds 30°C (86°F).