56 SEBU8726-03 Operation Section After Starting Engine 5. Immediately after the engine is started, disconnect the jump-start cables in reverse order. After jump starting, the alternator may not be able to recharge fully batteries that are severely discharged. The batteries must be replaced or charged to the proper voltage with a battery charger after the engine is stopped. Many batteries which are considered unusable are still rechargeable. Refer to Operation and Maintenance Manual, “Battery - Replace” and Testing and Adjusting Manual, “Battery - Test”. Improper jump start cable connections can cause an explosion resulting in personal injury. Prevent sparks near the batteries.
Sparks could cause vapors to explode. Do not allow jump start cable ends to contact each other or the engine. Note: If possible, first diagnose the reason for the starting failure. Refer to Troubleshooting, “Engine Will Not Crank and Engine Cranks But Will Not Start” for further information. Make any necessary repairs. If the engine will not start only due to the condition of the battery, either charge the battery, or start the engine by using another battery with jump-start cables. The condition of the battery can be rechecked after the engine has been switched OFF. i05397433 After Starting Engine After starting, the engine will be held at low speed.
The time held at low speed will depend on ambient temperature and time since last run. The procedure is in order to allow the engine systems to stabilize. NOTICE Using a battery source with the same voltage as the electric starting motor. Use ONLY equal voltage for jump starting. The use of higher voltage will damage the electrical system. Note: In ambient temperatures from 0 to 60°C (32 to 140°F), the warm-up time is approximately 3 minutes. In temperatures below 0°C (32°F), additional warm-up time may be required. Do not reverse the battery cables. The alternator can be damaged. Attach ground cable last and remove first.
When the engine idles during warm-up, observe the following conditions: Do not check the high-pressure fuel lines with the engine or the starting motor in operation. If you inspect the engine in operation, always use the proper inspection procedure in order to avoid a fluid penetration hazard. Refer to Operation and Maintenance Manual, “General hazard Information”. Turn all electrical accessories OFF before attaching the jump start cables. Ensure that the main power switch is in the OFF posi- tion before attaching the jump start cables to the en- gine being started.
Check for any fluid or for any air leaks at idle rpm and at one-half full rpm (no load on the engine) before operating the engine under load. 1. Turn the start switch on the stalled engine to the OFF position. Turn off all the engines accessories. 2. Connect one positive end of the jump-start cable to the positive cable terminal of the discharged battery. Connect the other positive end of the jump-start cable to the positive cable terminal of the electrical source. Allow the engine to idle for 3 to 5 minutes, or allow the engine to idle until the water temperature indicator begins to rise. Check all gauges during the warm-up period. 3.
Connect one negative end of the jump-start cable to the negative cable terminal of the electrical source. Connect the other negative end of the jump-start cable to the engine block or to the chassis ground. This procedure helps to prevent potential sparks from igniting the combustible gases that are produced by some batteries. Note: Gauge readings should be observed and the data should be recorded frequently while the engine is operating. Comparing the data over time will help to determine normal readings for each gauge. Comparing data over time will also help detect abnormal operating developments. Significant changes in the readings should be investigated. Note:
The engine ECM must be powered before the starting motor is operated or damage can occur. 4. Start the engine in the normal operating procedure. Refer to this Operation and Maintenance Manual, “Starting the Engine”.