RACE 6J7846 - Caterpillar

Electric Starting
Startability will be improved at temperatures below 0°C (32°F) by the use of a starting aid. A jacket water (coolant) heater or other means can be used to heat the engine.
Do not crank the engine for more than 30 seconds. Allow the starting motor to cool for two minutes before cranking again.
If the engine does not start within ten seconds, move the governor control lever to the FUEL OFF position. Crank the engine for another ten seconds in order to clear the cylinders of unburned fuel.Automatic Starting
If the Engine Control Switch (ECS) is in the AUTOmatic position, the engine will automatically start when a remote start/stop contact is closed. The engine will accelerate to rated speed within a programmed warm-up cycle when the oil pressure sensors indicate there is sufficient oil pressure for rated speed.Manual Starting
1. Perform all prestart checks.2. Open the main electrical circuit breaker.3. Move the governor control lever to idle speed. This will allow the engine to run at a low speed. If the engine idle speed is below 1200 rpm for an extended period of time, the generator voltage regulator may shut off. The voltage regulator will reset automatically when the generator set is completely shut off.
Typical Engine Control Switch (ECS), shown at the MAN. START position.4. Turn the ECS to the MAN. START position in order to start the engine. The Generator Set Control or the GSC will allow the engine to be run at rated speed when the oil pressure sensors indicate sufficient pressure for rated speed.Starting From An External Power Source
Batteries give off flammable fumes that can explode.Improper jumper cable connections can cause an explosion resulting in personal injury. Do not allow jump start cable ends to contact each other or the engine.Prevent sparks near the batteries. Sparks could cause vapors to explode. Do not allow jumper cable ends to contact each other or the engine.Do not smoke when observing the battery electrolyte levels.Always wear protective glasses when working with batteries.Electrolyte is an acid and can cause personal injury if it contacts skin or eyes.
First, determine the reason it is necessary to start with power from an external source. Refer to SEHS7768, Use of the 6V-2150 Starting/Charging Analyzer.If the installation is not equipped with a backup battery system, an external electrical source may be required for starting.Many batteries which are considered unusable are still rechargeable. Severely discharged maintenance free batteries might not fully recharge from the alternator alone after jump starting. The batteries must be charged to the proper voltage with a battery charger. For complete information on testing and charging, refer to SEHS7633, Battery Test Procedure. The Special Instruction is available from your Caterpillar dealer.Engines installed without engine-to-frame ground straps can be damaged by electrical discharge.In order to prevent electrical discharge damage, make sure the engine's electrical system has an engine-to-frame ground strap.For engines which have the alternator connected to an engine component, the ground strap must connect that component to the frame.Most engines have starting motor-to-frame ground straps.