CYLINDER BLOCK GP 7E4850 - Caterpillar

Proper Connection and Grounding of Electrical WiringThe heater plug connection and fuel solenoid valve ground wire have screwed cable design connections. Use serrated washers to ensure a good ground.Inspect the ground wire from the heater plug boss to the cylinder block for proper connection. Inspect all wiring/connections for proper grounding.Fabricated Electrical Wires from Installed Components to Engine Connection
Required wire lengths will vary by OEM.Install the 145-6758 Harness assembly. The 145-6758 Harness assembly is routed from the engine to the chassis. Please note that the lengths of the wires may not be correct for all applications. Additional wire length may be added by splicing the wire and adding more. The wire that is spliced into the harness must be the same gauge as the wire being spliced.Operating the Air Inlet Heater
This section will explain how to operate the air inlet heater. A brief explanation of how the air inlet heater functions is also included.A few moments spent learning the sequential steps required to engage the air inlet heater, and a reasonable knowledge of the component functions during cranking, will allow the operator to start the engine in a minimum amount of time.Preheat Mode
By switching the main key operated switch to the RUN position, the preheat mode begins. The list that follows includes information about the preheat mode:* The preheat mode will last 40 to 60 seconds to warm the flame start plug.* The indicator light on the dash must stay on for the duration of the preheat process.
The flame start plug will begin to heat as soon as the switch is activated to the ON (RUN) position. The flame start plug and the air inlet elbow will be too HOT to touch. Personal injury may occur if the flame start plug or the air inlet elbow is touched after the unit is activated. Avoid touching the flame start plug and the air inlet elbow.
* The preheat mode process is voltage dependent.* Upon completion of the preheat mode, the indicator light on the dash will go out.* The engine can now be started.Starting the Engine
Refer to the Operation and Maintenance Manual for your engine for the complete starting procedure. The information that follows refers to starting the engine when using an air inlet heater.* The engine must be started no later than 30 8 seconds after the indicator light goes out. The preheat mode is over when the indicator light goes out.* The alternator must reach charging speed. When the alternator reaches charging speed, a signal is sent to the D+ terminal of the ECU.* The oil pressure sensor must close. Oil pressure must be registered for the air inlet heater to operate.If the alternator and oil pressure requirements are not met, the air inlet heater system will be switched off automatically. Locate the source of the problem. Refer to the service manual for your engine for more information. Once the problem is solved, perform the following steps in order to restart the engine.1. The main key operated