Hydraulic Valve Solenoids - Toro Groundsmaster
4000?D Service Manual

PRELIMINARY – For Toro Distributor and Toro Company use only.

Hydraulic Valve Solenoids

There are several hydraulic valve solenoids on the
Groundsmaster 4000−D (Fig. 25). Testing of these sole-
noids can be done with the solenoid on the hydraulic
valve.
NOTE: Prior to taking small resistance readings with a
digital multimeter, short the meter test leads together.
The meter will display a small resistance value (usually
0.5 ohms or less). This resistance is due to the internal
resistance of the meter and test leads. Subtract this val-
ue from from the measured value of the component you
are testing.
1. Make sure engine is off. Disconnect wire harness
connector from the solenoid (Fig. 24).
2. Measure resistance between the two solenoid con-
nector terminals. The resistance for the solenoid coil
should be about 7.2 ohms.
3. Install new solenoid if necessary. Torque solenoid
nut to specification identified in Figure 25. Over−tighten-
ing may damage the solenoid or cause the valve to mal-
function.
4. Connect wire harness connector to the solenoid.
RIGHT
FRONT
2 to 5 ft−lb
(3 to 7 N−m)
1
1. Hydraulic valve solenoid (decks)
2. Hydraulic manifold (decks)
Electrical System
2 to 5 ft−lb
(3 to 7 N−m)
1
2
3. Hydraulic valve solenoid (traction)
2
1. Manifold (RH shown)
2. Valve solenoid
2
Figure 25
Page 5 − 18
1
3
Figure 24
3. Solenoid connector
4
3
4 to 6 ft−lb
(5 to 8 N−m)
2 to 5 ft−lb
(3 to 7 N−m)
1
2
4. Hydraulic manifold (traction)
Groundsmaster 4000−D