D250E Series II and D300E Series II Articulated Trucks Caterpillar

Some Caterpillar products may be equipped with an auxiliary starting receptacle as a standard part. If your machine is not equipped with this receptacle, the machine can be equipped with a receptacle from parts service. This will ensure that a permanent receptacle is always available in order to jump start the machine.

Two cable assemblies are also available in order to jump start the stalled machine from another machine that is also equipped with an auxiliary starting receptacle, or from an auxiliary power pack. Your Caterpillar dealer can provide the correct cables for your application.

Illustration 1	g00608488

If equipped, the auxiliary starting receptacle is located on the right side of the machine, next to the air cleaner.

1. Make the initial determination of the machine's failure to crank.

   Refer to Special Instruction, SEHS7768, "Use of 6V-2150 Starting Charging Analyzer Group".

2. Move the transmission control of the stalled machine to the NEUTRAL position and engage the parking brake. Move the hoist control to the FLOAT position.

3. Turn the engine start switch of the stalled machine to the OFF position. Turn off all accessories.

4. Turn the battery disconnect switch of the stalled machine to the ON position.

5. The machine that is providing the electrical source should be positioned close to the stalled machine in order to allow the jump start cables to reach the stalled machine. Do not allow the machines to contact each other.

6. Stop the engine on the machine that is being used as an electrical source. If you are using an auxiliary power source, turn off the charging system.

7. Ensure that the battery caps are tight. Ensure that the battery caps are correctly placed on both machines. Ensure that the batteries in the stalled machine are not frozen. Ensure that there is enough electrolyte in the batteries.

8. On the stalled machine, connect the appropriate jump start cable to the auxiliary starting receptacle.

9. Connect the other end of the jump start cable to the auxiliary starting receptacle that is on the power source.

10. Start the engine on the machine that is being used as an electrical source. If you are using an auxiliary power source, energize the charging system on the auxiliary power source.

11. Wait for a minimum of two minutes while the batteries in the stalled machine partially charge.

12. Attempt to start the stalled engine.

    Refer to Operation and Maintenance Manual, "Starting Above 0°C (+32°F)" or Operation and Maintenance Manual, "Starting Below 0°C (+32°F)".

13. Immediately after you start the stalled engine, disconnect the jump start cable from the electrical source.

14. Disconnect the other end of the jump start cable from the stalled machine.

15. When the engine is running and the charging system is in operation, conclude the failure analysis on the starting system and on the charging system of the stalled machine, as required.