Never check the battery charge by placing a metal object across the terminal posts. Use a voltmeter or a hydrometer to check the battery charge.
The batteries must be kept clean. The covers (if equipped) must be kept on the cells. Use the recommended cables, connections, and battery box covers when the engine is operated.
Generator set applications commonly use a constant charge such as a float charge during operation. The use of this type of constant charge shortens the life of the battery if the battery is not maintained properly. Using accessible batteries allows proper maintenance and service to the batteries.
The nominal system voltage for this generator set is 12V.
When replacing batteries, use the same number and 12 V.
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A battery presents a risk of electrical shock and high short circuit current. |
The following precautions are to be observed when working on batteries:
- Remove watches, rings, or other metal objects.
- Use tools with insulated handles.
- Do not lay tools or metal parts on top of batteries.
- Disconnect charging source prior to connecting or disconnecting battery terminals. Never disconnect any charging unit circuit or battery circuit cable from the battery when the charging unit is operating.
- Determine if the battery is inadvertently grounded. When inadvertently grounded, remove source of ground. Contact with any part of a grounded battery is capable of resulting in electrical shock. The risk of such shock is reduced when such grounds are removed during installation and maintenance (applicable to a generator not having a grounded supply circuit).
Disconnect the batteries when maintenance is performed or when the electrical system is serviced. Disconnect the battery ground leads. Tape the leads in order to help prevent sparks.
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A battery presents a risk of fire and explosion. Do not dispose of battery or batteries in a fire. The battery is capable of exploding. Do not charge a frozen battery. This may cause an explosion. A spark can cause the combustible gases that are produced by some batteries to ignite. |
To help prevent sparks from igniting combustible gases that are produced by some batteries, the negative "-" jump-start cable should be connected last from the external power source to the negative "-" terminal of the starting motor. If the starting motor is not equipped with a negative "-" terminal, connect the jump-start cable to the engine block.
Arcing or sparking could cause a fire. Secure connections, recommended wiring, and properly maintained battery cables will help to prevent arcing or sparking.
Improper jumper cable connections can cause an explosion that can result in injury. Refer to the Operation Section of this manual for specific instructions. Gases from a battery can explode. Keep any open flames or sparks away from the top of a battery. Do not smoke in battery charging areas.
Lead-acid batteries present a risk of fire because they generate hydrogen gas. The following procedures are to be followed:
- DO NOT SMOKE when near batteries.
- DO NOT cause flame or spark in battery area.
- Discharge static electricity from body before touching batteries by first touching a grounded metal surface.
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A battery presents a potential burn hazard. The electrolyte is a dilute sulfuric acid that is harmful to the skin and eyes and is toxic. The electrolyte is electrically conductive and corrosive. |
The following procedures are to be observed:
- Do not open or mutilate the battery or batteries.
- Wear full eye protection and protective gloves and clothing.
- Where electrolyte contacts the skin, wash off immediately with water.
- Where electrolyte contacts the eyes, flush thoroughly and immediately with water and seek medical attention.
- Spilled electrolyte is to be washed down with an acid neutralizing agent. A common practice is to use a solution of
500 g (1 lb) bicarbonate of soda to4 L (1 US gal) of water. The bicarbonate of soda solution is to be added until the evidence of reaction (foaming) has ceased. The resulting liquid is to be flushed with water and the area dried. - Wash hands after touching the batteries and connectors.
Refer to Special Instruction, SEHS7633, "Battery Test Procedure" for additional instruction.