Pto Solenoid Valve Coil - Toro Groundsmaster 360 Service Manual

PTO Solenoid Valve Coil

The Groundsmaster 360 transmission includes a sole-
noid valve coil that is used to engage the PTO drive (Fig.
58). When the solenoid valve coil is energized, hydraulic
flow is directed to operate the PTO system.
On 2WD machines, the Standard Control Module
(SCM) provides current to the PTO solenoid valve coil
based on the position of several input switches. The
PTO LED on the SCM will be illuminated when the sole-
noid valve coil is energized.
On 4WD machines, the Toro Electronic Controller (TEC)
provides current to the PTO solenoid valve coil based on
the position of several input switches. Before discon-
necting PTO solenoid valve coil on machines with 4WD,
test the solenoid and its circuit wiring as TEC controller
outputs with the Diagnostic Display (see Diagnostic Dis-
play in the Troubleshooting section of this chapter).
Testing
NOTE: The solenoid does not have to be removed from
the cartridge valve for testing.
1. Make sure ignition switch is in the OFF position. Un-
plug wire harness electrical connector from solenoid
valve coil.
NOTE: Prior to taking small resistance readings with a
digital multimeter, short the test leads together. The me-
ter will display a small resistance value (usually 0.5
ohms or less). This resistance is due to the internal re-
sistance of the meter and test leads. Subtract this value
from the measured value of the solenoid coil being test-
ing.
2. Measure resistance between the two solenoid coil
connector terminals. Resistance of the solenoid coil
should be approximately 7.5 ohms.
3. If solenoid coil needs replacement, see PTO Sole-
noid Valve Coil in the Service and Repairs section of this
chapter.
4. After testing is completed, connect wire harness
connector to the solenoid coil.
Electrical System
2
1. Transmission
2. Solenoid valve and coil
Page 5 - - 44
1
3
Figure 58
3. Coil connector
Groundsmaster 360