Lower Reels Time Delay; Leak Detector Alarm And Delay Timer - Toro Greensmaster 3150 Service Manual

Lower Reels Time Delay

This is a solid state timer used to energize solenoid
valve S4 long enough to fully retract the cutting unit lift
cylinders, making sure the cutting units are fully lower-
ed. Upon the application of power, the load is energized
and the time delay is started. After 6 seconds the load
is de–energized.
1. Connect voltmeter across test load and test load to
timer. Connect 12VDC source to timer and load. Make
sure to observe polarity. After 6 seconds, there should
be no voltage across the load.
2. Disconnect timer from 12VDC source and test load.
Figure 17

Leak Detector Alarm and Delay Timer

To prevent the leak detector system from sounding false
alarms during normal operation. the alarm circuit in-
cludes a one second delay timer.
1. Turn ignition switch to On (do not start the engine),
then move leak detector test switch rearward and hold.
After a one second time delay the alarm should sound.
Greensmaster 3150
TIMING
RESISTOR
TIME
DELAY
2
1. Alarm
Page 5 – 15
+
–
INPUT VOLTAGE
LOAD
3 2 1
4 5
Figure 18
Figure 19
2. Delay timer
Electrical System
1