Battery Service |
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| Jump Starting With Auxiliary (Booster) Battery | ||||
Checking Battery Voltage |
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| Jump starting is not recommended. However, if it must be | ||||
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| done, follow these directions. Both booster and | |||||
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| WARNING |
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| batteries should be treated carefully when using jumper | |||
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| cables. Follow the steps below EXACTLY, being careful not | ||||
Keep open flames and sparks away from the |
| to cause sparks. Refer to Figure 49. | |||||
battery; the gasses coming from it are highly |
| 1. Both batteries must be of the same voltage. | |||||
explosive. Ventilate the battery well during |
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| 2. | Position the vehicle with the booster battery adjacent to | |||||
charging. |
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| the vehicle with the discharged battery so that booster | ||
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A voltmeter can be used to determine condition of battery. |
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| cables can be connected easily to the batteries in both | ||||
When engine is off, the voltmeter shows battery voltage, |
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| vehicles. Make certain vehicles do not touch each other. | ||||
which should be 12 volts. When engine is running, the |
| 3. | Wear safety glasses and shield eyes and face from | ||||
voltmeter shows voltage of charging circuit which normally |
| batteries at all times. Be sure vent caps are tight. Place | |||||
is 13 to 14 volts. |
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| damp cloth over vent caps on both batteries. | |||
A dead battery or one too weak to start the engine may not | 4. Connect positive (+) cable to positive post of discharged | ||||||
| battery (wired to starter or solenoid). | ||||||
mean the battery needs to be replaced. For example, it may |
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5. | Connect the other end of same cable to same post | ||||||
mean that the alternator is not charging the battery properly. | |||||||
If there is any doubt about the cause of the problem, see |
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| marked positive (+) on booster battery. | ||||
your dealer. If you need to replace the battery, follow the |
| 6. | Connect the second cable negative | ||||
steps under Cleaning the Battery & Cables in the Regular |
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| booster battery. |
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Maintenance Section. |
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| 7. | Make final connection on e gine block of stalled vehicle | |||
Charging a Completely Discharged Battery |
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| away from battery. Do ot lean over batteries. | ||||
| 8. | Start he eng ne | f the vehicle with the booster battery. | ||||
1. | Be aware of all the safety precautions you should |
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| Wait a few m nu es, then attempt to start the engine of | |||||
| observe during the charging operation. If you are |
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| the vehi le wi h | he discharged battery. | ||
| unfamiliar with the use of a battery charger and | for9. If the vehi le does not start after cranking for thirty | |||||
| hydrometer, have the battery serviced by y ur dealer. |
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| seconds, STOP PROCEDURE. More than thirty seconds | |||
2. | Add distilled water sufficient to cover the plate (fill to the |
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| sel om starts the engine unless some mechanical | ||||||
| proper level near the end of the charge). If the battery |
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| a justment is made. | |||
| is extremely cold, allow it to warm before adding water | 10. After starting, allow the engine to return to idle speed. | |||||
| because the water level will rise as it warms. Also, an |
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| Remove the cable connection at the engine or frame. | ||||
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| Not |
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| extremely cold battery will not accept a normal cha ge |
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| Then remove the other end of the same cable from the | |||
| until it becomes warm. |
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| booster battery. |
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3. | Always unplug or turn the charger off b fore attaching |
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| 11. Remove the other cable by disconnecting at the | ||||||
| or removing the clamp connections. |
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| discharged battery first and then disconnect the opposite | ||||
4. | Carefully attach the clamps to the batt ry in prop r |
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| end from the booster battery. | |||||
| polarity (usually red to [+] positive and black to |
| 12. Discard the damp cloths that were placed over the | ||||
| negative). |
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| battery vent caps. | |||
5. While charging, periodically measure the temperature of |
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| Reproduction |
the electrolyte. If the temperature exceeds 125° F (51.6° C), or if violent gassing or spewing of electrolyte occurs, the charging rate must be reduced or temporarily halted to prevent battery damage.
6. Charge the battery until fully charged (until the specific gravity of the electrolyte is 1.250 or higher and the electrolyte temperature is at least 60° F). The best method of making certain a battery is fully charged, but not over charged, is to measure the specific gravity of a cell once per hour. The battery is fully charged when the cells are gassing freely at low charging rate and less than 0.003 change in specific gravity occurs over a three hour period.
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