Toro Groundsmaster 7210 Service Manual page 258

Removing the Battery (continued)
Inspecting, Maintaining, and Testing the Battery
Electrical System: Service and Repairs
Be careful when removing the battery cables and ensure that you do
not damage the terminal posts or cable connectors.
1. Unlatch, raise the hood and support it. Loosen the battery retainer that
secures the side of the battery to the frame.
2. Loosen the nut on the ground cable (-) first and remove the ground cable
from the battery. This must prevent the short circuiting the battery, other
components, or the operator's hands.
3. After you disconnect the negative cable from the battery, loosen the nut on
the positive cable (+) and remove the positive cable from the battery.
4. Ensure that the battery vent caps are tight.
5. Remove the battery from the battery compartment to a service area to allow
better access for service.
1. Do the following inspections and maintenance:
A. Check for cracks. Replace the battery if cracked or leaking.
B. Check the battery terminal posts for corrosion. Use the wire brush to
clean corrosion from the posts.
Before cleaning the battery, tape or block the vent holes of the
filler caps and ensure that the caps are tight.
C. Check for the signs of wetness or leakage on the top of the battery which
might indicate a loose or missing filler cap, overcharging, loose terminal
post, or overfilling. Also, check the battery case for dirt and oil. Clean
the battery with a solution of baking soda and water, then rinse it with
clean water.
D. Check that the cover seal is not broken away. Replace the battery if the
seal is broken or leaking.
E. Check the electrolyte level in each cell. If the level is below the tops of
the plates in any cell, fill all the cells with distilled water between the
minimum and maximum fill lines. Charge at 15 to 25 A for 15 minutes to
allow sufficient mixing of the electrolyte.
2. Perform the hydrometer test of the battery-electrolyte.
Ensure that the area around the cells is clean before opening the
battery caps.
A. Use a hydrometer to measure the specific gravity of each cell. Pull the
electrolyte in and out of the hydrometer barrel before taking a reading
to warm-up the hydrometer. At the same time, take the temperature of
the cell.
IMPORTANT
IMPORTANT
IMPORTANT
Page 5–62 Groundsmaster 7210
16222SL Rev C