24 Volt Voltage Divider - Toro Groundsmaster 5900 Series Service Manual

24 Volt Voltage Divider

Testing
Electrical System: Component Testing
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1. Battery−disconnect switch
24 Volt electrical system activity is monitored as an input to the master TEC. A
voltage divider in the circuit reduces the 24 Volt system voltage for the TEC input
signal to approximately 4 VDC. The TEC uses the reduced signal voltage to
calculate the 24 Volt system voltage. The voltage divider is located in the rear
power center in the right rear corner of the engine compartment
1. Park the machine on a level surface, lower the cutting units and stop the
engine. Remove the key from the key switch.
2. Turn battery−disconnect switch to the OFF position.
3. Locate the voltage divider and unplug it from the rear wire harness for testing.
4. The voltage divider can be tested using a digital multimeter (ohms setting)
and the table to the right. Replace the voltage divider if testing determines
that it is faulty.
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5. The voltage divider terminals are marked as shown in
use of a multimeter (ohms setting) the divider may be tested to determine
whether each ot the internal resistors in the divider is functioning properly
(shown in below table).
Note: Voltage divider terminals 2 and 5 are not used.
Figure 273
2. Voltage divider
1
2
3
Figure 274
Page 6–132
1
2
(Figure
6
5
4
Figure 274. With the
Groundsmaster
16227SL Rev B
273).
® 5900 & 5910