TESTING ELECTRICAL COMPONENTS
This 24 volt solenoid requires a minimum of 18 volts to
The following results indicate a solenoid that is
functioning properly:
engage, therefore, it is necessary to use the actual
mower batteries to test it (Figure 38). Test the A - A
terminals by connecting power and the ohmmeter as
shown below.
Power
Result at Terminals B - B
Not connected
No Continuity (R = infinity)
Connected to C - C Continuity (R = 0 ohms)
Testing Batteries
Before reading voltage, the batteries must rest a
minimum of one hour after charging to prevent an
incorrect reading. Test the batteries using a digital
voltmeter.
Note: Voltage will increase from original reading about
.25
volts per hour for up to 4 hours. Also, charge
output voltages will vary with temperature: higher in
cold and lower in heat.
Figure 38
36294105
Combined
24
Volt
36 Volt
Voltage Test
A properly functioning solenoid will yield the following
results:
Combined voltage
(charger off)
24 - 26 VDC
36 - 39 VDC
Power
Result at Terminals A - A
Combined Voltage
(charger on at
room temp.)
26.5 - 30.5 VDC 39.5 - 45.5 VDC
Not connected
Continuity (R = 0 ohms)
Connected to C - C No Continuity (R = infinity)
Perform the same test as above on the B - B terminals
(Figure 39).
Toro
All
Individual
Voltage Test
20647 &
Others
20649
Only
Individual Voltage
12 - 13 VDC 6 - 6.5 VDC
Figure 39
36294103
Carefree Mower Service Manual
4 - 3
| Categories | Lawn Mower Manual, Lawn-Boy Lawn Mower Manuals, Toro Lawn Mower Manual |
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| Language | English |
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