Service Manual

Greensmaster 3320/3420Page 6 − 6Electrical System
Turf Guardian
TM
Leak Detector System Operation (Optional
Kit)
NOTE: The Turf Guardian
TM
Leak Detector System is
optional on Greensmaster TriFlex Hybrid machines.
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). Oil level sensor float is in raised position, keeping
alarm circuit open.
Figure 2
TANK
SIGHT
GAUGE
SOLENOID
VALVE
(open)
ALARM
(off)
OIL LEVEL SENSOR
(raised/open)
MAIN HYDRAULIC TANK
LEAK DETECTOR
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 leak detector tank. The
oil level sensor stays in the raised position keeping
alarm circuit open.
Figure 3
TANK
SIGHT
GAUGE ALARM
(off)
MAIN HYDRAULIC TANK
SOLENOID
VALVE
(closed)
(raised/open)
OIL LEVEL SENSOR
LEAK DETECTOR