SHAFT-PINION 5054781 - Caterpillar

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 to clear the cylinders of unburned fuel.Start the engine using the following procedure:Manual Starting
1. Perform all prestart checks.2. Open the main electrical circuit breaker.3. Depending upon your equipment:* turn the manual speed potentiometer (if equipped) fully counterclockwise* move the governor control lever to idle speedThis 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.4. Turn the starter switch to START position..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 SEHS7668 for information on using the 6V-2150 Starting/Charging Analyzer Group.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, the 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.Some engines have starter-to-frame ground straps. Many of these starters have electrical insulation systems and are not electrically grounded to the engine. For this reason, the starter-to-frame ground strap may not be an acceptable engine ground.If the engine is not electrically connected directly to the rails through mounting bolts, install a separate ground strap. Refer to the Electrical Schematic for your engine, or consult with your Caterpillar dealer.Your engine has a 24 volt starting system. Use only the same voltage for boost starting. Use of a welder or higher voltage will damage the electrical system and is not recommended.Refer to the following instructions to properly jump start the engine.
When using an external electrical source to start your engine: turn the START switch off, remove the key, and turn off all electrical accessories before