Greensmaster 3250--D
Page 5 -- 32
Electrical System
Figure 41
VALVE SOLENOID
TEST SWITCH
LEVEL SWITCH
1 SEC.
DELAY
TIMER
AUDIO ALARM
270 OHM
RESISTOR
CONNECTOR
RED/WHITE
BLACK
BLACK
BLACK
REDYELLOW
GRAY
BLACK/WHITE
YELLOW
+
--
LEAK DETECTOR CIRCUIT
--
+
RED
+
--
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
theapplicationofpower,thetimedelayisinitiated.Atthe
completionoftheone(1)seconddelay,theaudioalarm
becomesenergized. Whenpowerisremoved, thetimer
is reset.
1. Isolatetimerfromthecircuit.Connect12VDCsource
inseries withvoltmetertoconnectoroftimer. Makesure
to observe polarity.
2. Thevoltmetershouldjumpfrom0to12VDCafterthe
one (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 42
1
2
4
5
6
3
Valve Solenoid Coil
1. Isolate solenoid coil from the circuit. Connect multi-
meter (Ohms setting) to solenoid coil connector. Make
sure to observe polarity.
2. Resistance ofsolenoidcoilshouldbeapproximately
7.2 ohms.
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