Toro GREENSMASTER 3100 - Manual (Page 111)

Turf Guardian TM Leak Detection System
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.
To check alarm and delay timer, turn ignition switch to
ON, then move leak detector switch rearward and hold.
After a one second time delay alarm should sound.
To check leak detector float switch, remove hydraulic
tank cap and strainer from neck of tank. Turn ignition
switch to ON (DO NOT start engine). Insert a clean rod
or screw driver into tank neck and gently push down on
switch float. Alarm should sound after a one second time
delay.
Normal Operation (Warm Oil)
When key switch is turned on, solenoid valve closes.
During normal operation, hydraulic fluid expands, caus-
ing it to flow into overflow tank. Float stays in raised
position, keeping alarm circuit open.
Leak Alert !
If oil leaks during operation, fluid level drops in system
hydraulic tank. This causes float to lower, closing alarm
circuit. After a one second delay alarm will sound.
NOTE: During normal operation, with cutting units low-
ered, approximately 5 oz. of oil will leak before float
switch activates alarm.
Sight
Gauge
Float Switch
(Float Raised,
Switch Open)
Overflow
Tank
Solenoid
Valve
(Closed)
Alarm
(No Sound)
System Hydraulic Tank
Normal Operation (Warm Oil)
Figure 3
Sight
Gauge
Float Switch
(Float Raised,
Switch Open)
Overflow
Tank
Solenoid
Valve
(Open)
Alarm
(No Sound)
System Hydraulic Tank
Before Start-Up (Cold Oil)
Figure 2
Sight
Gauge
Float Switch
(Float Lowered,
Switch Closed)
Overflow
Tank
Solenoid
Valve
(Closed)
Alarm
(Sound On)
System Hydraulic Tank
Leak Alert !
Figure 4
Greensmaster
®
3100 Page 5 - 3 Turf Guardian
TM
Leak Detection System
(Greensmaster 3100 S/N below 230000001)
Rev. D