Product Manual

Maintenance
Owner’s Manual for Stationary Emergency Generators 37
Figure 5-9. Engine Oil and Air Cleaner Maintenance (All Models)
5.7.9— Check Battery Condition/Fluid Level
5.7.9.1— Check Condition and Clean
1. Verify that top of battery is clean and dry. Dirt and electro-
lyte on top of the battery can cause battery to self-dis-
charge. Clean battery top with a solution of baking soda
(sodium bicarbonate) and water (5 teaspoons baking
soda per quart or liter of water). When solution stops bub-
bling, rinse off the battery with clean water.
2. Clean cable clamps and battery terminals using a wire
brush or sandpaper to remove any oxidation.
3. Inspect battery screws, clamps and cables for breakage,
loose connections and corrosion. Tighten and clean as
necessary.
4. Check the battery posts for melting or damage caused by
over tightening.
5. Inspect battery for discoloration, raised top or a warped
or distorted case, which might indicate that the battery
has been frozen, overheated or overcharged.
6. Inspect the battery case for cracks or leaks.
7. Check the battery fluid level of unsealed batteries. See
Subsection 5.7.9.2—Check Fluid Level.
8. Check the battery state of charge. See Subsection
5.7.9.3—Check State of Charge.
9. Replace battery if necessary. See Subsection 5.7.9.4—
Battery Replacement.
5.7.9.2— Check Fluid Level
Check the fluid level of unsealed batteries. If necessary, fill with
distilled water only. DO NOT use tap water.
5.7.9.3— Check State of Charge
Check the state of charge using a Digital Multimeter. Recharge and retest if state of charge is below manufacturer's
recommendations. Replace battery if necessary.
5.7.9.4— Battery Replacement
Removal
Always disconnect the negative battery cable first. If the positive cable should contact ground with the
negative cable installed, the resulting sparks may cause a battery explosion which could result in seri-
ous injury.
1. Remove battery negative cable (black) from battery negative (-) terminal.
2. Remove battery positive cable (red) from battery positive (+) terminal.
3. Install rubber protective cover over battery positive (+) terminal. See A of Figure 5-11
4. Loosen two screws with nylon washers to release battery hold-down clamp from battery tray.
5. Grasp battery strap, and lift battery from battery tray. See B of Figure 5-11
6. Remove rubber protective cover from battery positive (+) terminal.
Figure 5-10. Battery Cable Connections
Battery
Red Lead
From Starter
Black Lead
To Frame
$