PLATE 8X2939 - Caterpillar

System Operation Description:Before testing of the ether injection system, remove the ether cylinder from the system.The ether injection system will improve cold weather starting of the engine. The Electronic Control Module (ECM) controls the ether injection system. The ether injection system has two operating modes. The ether injection system can operate in automatic mode and in manual mode. The engine oil temperature and the engine speed are used to determine ether injection. The ether injection system is disabled if there is an active engine shutdown.In the automatic mode, the ether injection system is enabled when all of the following conditions occur:
Ether is programmed to the ON position in the configuration screen.
Inlet air temperature is less than 0 °C (32 °F).
Engine speed is less than 200 rpm above the low idle speed.In the automatic mode, the ECM energizes the relay for the ether in cycles of six seconds. The ether is turned ON for three seconds. The ether is then turned OFF for three seconds.Manual mode is activated by pressing the starting aid switch. In the manual mode, the ether injection system is enabled when all of the following conditions are met:
The starting aid switch is placed in the MANUAL position.
Inlet air temperature is less than 0 °C (32 °F).
Engine speed is less than 200 rpm above the low idle speed.In manual mode, ether injection is disabled if engine speed is greater than 200 rpm above the low idle speed.
Illustration 1 g00751022
Schematic for ether injection system
Breathing ether vapors or repeated contact of ether with skin can cause personal injury. Personal injury may occur from failure to adhere to the following procedures.Use ether only in well ventilated areas.Do not smoke while changing ether cylinders.Use ether with care to avoid fires.Do not store replacement ether cylinders in living areas or in the operator's compartment.Do not store ether cylinders in direct sunlight or at temperatures above 49 °C (120 °F).Discard cylinders in a safe place. Do not puncture or burn cylinders.Keep ether cylinders out of the reach of unauthorized personnel.To avoid possible injury, be sure the brakes are applied and all controls are in Hold or Neutral when starting the engine.
Test Step 1. Verify the Status of the Ether Injection SystemVerify that the ether injection system has been programmed to ON.Results:
OK - The ether injection system has been programmed to ON. Proceed to Test Step 2.
Not OK - The ether injection system has not been programmed to ON. Program the ether injection system to ON. Verify that all of the conditions are met in order for the ether injection system to function properly. Proceed to Test Step 2.Test Step 2. Inspect Electrical Connectors and Wiring
Turn the keyswitch to the OFF/RESET position.
Thoroughly inspect ECM connector J1/P1, customer connector J61/P61, and all other connectors in the wiring harness. Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Inspect the following components for damage, for corrosion, and for incorrect attachment:
Battery posts
Alternator
Breaker
Engine ground
Chassis groundExpected Result:All connectors, pins, and sockets are completely inserted and coupled. The harness and wiring