Operation Section Use of Jumper Cables 10. Connect one end of the negative (-) jumper cable to the other terminal (negative) of the boost battery. 11. Make final connection of negative (-) cable to the stalled truck frame (not battery negative post) away from battery, fuel or hydraulic lines, or moving parts. 12. Start the engine on the boost lift truck, or energize the charging system on the auxiliary power source. 13. Wait a minimum of two minutes for the batteries in the stalled lift truck to partially charge. 14. Attempt to start the stalled engine. Refer to section on Engine Starting . 15. Immediately after starting the stalled engine, disconnect the jumper cables in reverse order. 16.
Conclude failure analysis on starting/charging system of the stalled lift truck as required with the engine running and charging system in operation. When auxiliary start receptacles are not available, use the following procedure. 1. Make initial determination as to failure of lift truck to crank. Procedure applies even if lift truck does not have diagnostic connector. 2. Place the directional control in NEUTRAL on the stalled lift truck. Engage the parking/secondary brake. Lower all attachments to the ground. Move all controls to HOLD (CENTER). 3. On stalled lift truck, turn the start switch to OFF. Turn off all accessories. 4.
On stalled lift truck, turn on (close) the disconnect switch (if equipped). 5. Move boost start lift truck near enough to stalled lift truck for cables to reach, but DO NOT ALLOW LIFT TRUCKS TO TOUCH. 6. Stop the engine on the boost lift truck. Or, if using an auxiliary power source, turn off the charging system. 7. Make sure battery caps are all in place and tight on both lift trucks. Typical Example of 24 Voltage 8. Connect positive (+) jumper cable (red) to positive (+) cable terminal of discharged battery, or battery set on the stalled lift truck. Do not allow positive cable clamps to touch any metal other than battery terminals. 9.
Connect the other end of this positive jumper cable (red) to positive (+) terminal of boost battery. Use procedure of Step 8 to determine correct terminal. 68