Toro Groundsmaster 5900 Series Service Manual page 365

Testing
Groundsmaster ® 5900 & 5910
16227SL Rev B
2
g288567
1. Rear power center
The remote sense (24 Volt enable) relay provides power to the 24 volt alternator
sense terminal. The 24 volt alternator with internal voltage regulator use this
circuit to monitor the 24 volt system battery voltage. The remote sense relay is
energized by the master controller. The remote sense relay is attached to the
rear power center in the right rear corner of the engine compartment
1. Make sure key switch is OFF. Remove key from key switch.
2. Turn battery−disconnect switch to the OFF position.
3. Verify the location of the relay being tested (above) and access the relay.
4. Disconnect wire harness connector from relay. Remove relay from mounting
bracket for testing.
Note: Prior to taking small resistance readings with a digital multimeter, short
the meter test leads together. The meter will display a small resistance value
(usually 0.5 ohms or less). This resistance is due to the internal resistance
of the meter and test leads. Subtract this value from the measured value
of the component you are testing.
g288568
1. Coil terminals
2. Common terminal
1
Figure 246
2. Remote sense relay
3
4
1
Figure 247
3. Normally closed term.
4. Normally open term.
Page 6–103
(Figure
2
1
Electrical System: Component Testing
246).