Service Manual

Greensmaster 3250−D
Page 5 − 15
Electrical System (Rev. C)
Figure 16
VALVE SOLENOID
TEST SWITCH
LEVEL SWITCH
1 SEC.
DELAY
TIMER
AUDIO ALARM
270 OHM
RESISTOR
CONNECTOR
RED/WHT
BLACK
BLACK
BLACK
REDYELLOW
GRAY
RED
BLK/WHT
YELLOW
+
−
CONNECTOR
LEAK DETECTOR CIRCUIT
CONNECTOR
−
+
RED
BLACK
+
−
Components can be tested by isolating them from the
rest of the circuit and individually testing the suspected
component.
Delay Timer
This is a solid state device with no moving parts. Upon
the application of power, the time delay is initiated. At the
completion of the 1 second delay, the audio alarm be-
comes energized. When power is removed the timer is
reset.
1. Isolate timer from the circuit. Connect 12VDC
source in series with voltmeter to connector of timer.
Make sure to observe polarity.
2. The voltmeter should jump from 0 to 12VDC after
the 1 second delay. Remove voltage source from the
timer. Reconnect timer to the circuit.
Audio Alarm
1. Isolate alarm from the circuit. Connect 12VDC
source to terminals. Make sure to observe polarity.
2. Alarm should sound. Remove voltage source from
the alarm. Reconnect alarm to the circuit.
1. 270 ohm resistor
2. Audio alarm
3. Delay timer
4. Toggle switch
5. Level detector
6. Valve solenoid
Figure 17
4
5
3
2
1
6
Valve Solenoid
1. Isolate solenoid from the circuit. Connect multime-
ter (Ohms setting) to connector. Make sure to observe
polarity.
2. Resistance should about 7.2 ohms.
Electrical
System