Toro Greensmaster 3120 Service Manual page 219

Installing the Battery
Inspecting, Maintaining, and Testing the Battery
Greensmaster 3120
17230SL Rev C
To prevent possible electrical problems, install only a fully charged
battery.
1. Ensure that the key switch and all accessories are in the O
2. Ensure that the battery tray is clean and place the battery tray in position.
3. Ensure that all the battery terminals, battery cables and battery hold down
components are in good condition.
4. Place the battery into the battery tray. Make sure the battery is level and
flat. Connect the positive (+) cable connector onto the positive (+) battery
terminal. Use 2 wrenches to attach the cable bolt and lock nut.
5. Install and secure battery hold down rod with two (2) wing nuts. Do not
overtighten to prevent cracking or distorting the battery case.
6. Connect a digital multimeter (set to A) between the negative (-) battery post
and the negative (-) cable connector. Ensure that the reading is less than
0.1 A. A reading of more than 0.1 A usually indicates a damaged switch, a
shorted circuit, or grounded wire. Identify and repair the electrical faults
before returning the machine to service.
7. Connect the negative (-) cable connector to the negative (-) battery terminal.
Use the 2 wrenches to attach the cable bolt and lock nut.
8. After you make the connections, apply battery terminal protector Toro Part
No. 107-0392 or a light layer of grease to the battery terminals and cable
connectors to reduce corrosion; refer to
Temperature Correcting Specific Gravity
Cell Temperature
Cell Specific Gravity
38°C minus 27°C equals 11.0°C
(100°F minus 80°F equals 20°F)
11°C multiply by 0.004/5.5°C equals 0.008
(20°F multiply by 0.004/10°F equals 0.008)
ADD (conversion above)
Correction to 27°C (80°F)
Minimum Voltage
Minimum Voltage
9.6
9.5
9.4
9.3
9.1
8.9
IMPORTANT
Special Tools (page
100°F
1.245
0.008
1.253
Battery-Electrolyte Temperature
70°F (and up)
60°F
50°F
40°F
30°F
20°F
Page 5–33
position.
FF
5–3).
21°C (and up)
15°C
10°C
4°C
-1°C
-7°C
Electrical System: Service and Repairs