Charging The Battery; Adding Water To The Battery - Toro 74405 Operator's Manual

3. Install the negative battery cable to the negative (–)
battery terminal.
4. Secure the cables with 2 bolts (1/4 x 3/4 inch), washers
(1/4 inch), and nuts (1/4 inch) (Fig. 25).
5. Slide the red terminal boot onto the positive (red)
battery post.
6. Secure the battery with the hold-down (Fig. 25).
Checking the Electrolyte Level
Danger
Battery electrolyte contains sulfuric acid which is a
deadly poison and causes severe burns.
Do not drink electrolyte and avoid contact with
skin, eyes or clothing. Wear safety glasses to
shield your eyes and rubber gloves to protect
your hands.
Fill the battery where clean water is always
available for flushing the skin.
1. Tip the seat forward to see the battery.
2. Look at the side of the battery. The electrolyte must be
up to the Upper line (Fig. 26). Do not allow the
electrolyte to fall below the Lower line (Fig. 26).
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2
3
Figure 26
1. Vent caps
2. Upper line
3. If the electrolyte is low, add the required amount of
distilled water; refer to Adding Water to the Battery,
page 27.

Adding Water to the Battery

The best time to add distilled water to the battery is just
before you operate the machine. This lets the water mix
thoroughly with the electrolyte solution.
1. Remove the battery from the tractor; refer to Removing
the Battery, page 26.
Important
Never fill the battery with distilled water
while the battery installed in the tractor. Electrolyte could
be spilled on other parts and cause corrosion.
3. Lower line
27
2. Clean the top of the battery with a paper towel.
3. Remove the vent caps from the battery (Fig. 26).
4. Slowly pour distilled water into each battery cell until
the electrolyte level is up to the Upper line (Fig. 26) on
the battery case.
Important Do not overfill the battery because
electrolyte (sulfuric acid) can cause severe corrosion and
damage to the chassis.
5. Wait five to ten minutes after filling the battery cells.
Add distilled water, if necessary, until the electrolyte
level is up to the Upper line (Fig. 26) on the battery
case.
6. Reinstall the battery vent caps.

Charging the Battery

Important
Always keep the battery fully charged
(1.260 specific gravity). This is especially important to
prevent battery damage when the temperature is below
32 F (0 C).
1. Remove the battery from the chassis; refer to Removing
the Battery, page 26.
2. Check the electrolyte level; refer to Checking the
Electrolyte Level, page 27.
3. Make sure that the vent caps are installed in the battery.
Charge the battery for 1 hour at 25 to 30 amps or
6 hours at 4–6 amps. Do not overcharge the battery.
4. When the battery is fully charged, unplug the charger
from the electrical outlet, then disconnect the charger
leads from the battery posts (Fig. 27).
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2
Figure 27
1. Positive battery post
2. Negative battery post
5. Install the battery in the tractor and connect the battery
cables; refer to Installing the Battery, page 26.
Note: Do not run the tractor with the battery disconnected,
electrical damage may occur.
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1
3. Red (+) charger lead
4. Black (–) charger lead