System Operation; System Operation - Toro Greensmaster 3150 Service Manual

Turf Guardiant
Before Start-Up (Cold Oil)
With ignition switch Off, solenoid valve is open. Before
start-up, hydraulic fluid is at level mark of sight gauge (oil
cold). Float is in raised position, keeping alarm circuit
open.
Normal Operation (Warm Oil)
When ignition switch is turned On, solenoid valve
closes. During normal operation, hydraulic fluid ex-
pands, causing it to overflow into auxiliary tank. The float
stays in the raised position keeping alarm circuit open.
Leak Alert!
If hydraulic fluid leaks during operation, the fluid level in
the main hydraulic tank drops. This causes the float to
lower, closing the alarm circuit. The alarm will sound af-
ter a one second time delay.
Note: During normal operation, with cutting units low-
ered, approximately 5 oz (148 ml) of hydraulic fluid will
leak before the float closes the alarm circuit and acti-
vates the alarm.
Electrical System
Leak Detector System Operation
Page 5 – 4
AUXILIARY
TANK
SIGHT
GAUGE
SOLENOID
VALVE
(open)
MAIN HYDRAULIC TANK
Figure 3
AUXILIARY
TANK
SIGHT
GAUGE
SOLENOID
VALVE
(closed)
MAIN HYDRAULIC TANK
Figure 4
AUXILIARY
TANK
SIGHT
GAUGE
SOLENOID
VALVE
(closed)
MAIN HYDRAULIC TANK
Figure 5
FLOAT SWITCH
(raised/open)
ALARM
(off)
FLOAT SWITCH
(raised/open)
ALARM
(off)
FLOAT SWITCH
(lowered/closed)
ALARM
(off)
Greensmaster 3150