Reel Drive Solenoid - Toro Reelmaster 3100-D Service Manual

Reel Drive Solenoid

Testing
Electrical System: Component Testing
g346523
1. Hydraulic manifold
The hydraulic system on the Reelmaster uses a solenoid valve coil on the
hydraulic manifold (Figure
hydraulic flow is directed to the cutting decks.
The standard control module provides current to the solenoid valve coil based
on the position of several inputs. A LED on the standard control module will be
illuminated when the solenoid valve coil is energized.
Note: The solenoid does not have to be removed from the cartridge valve for
testing.
1. Make sure key switch is in the OFF position. Unplug 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 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 value from the measured value
of the component you are testing.
2. Apply 12 VDC source directly to the solenoid. Listen for solenoid to switch on.
3. Remove 12 VDC source from the solenoid. Listen for solenoid to switch off.
4. Measure resistance between the two connector terminals. The resistance
should be about 7.2 ohms.
5. Install new solenoid if necessary.
A. Make sure O-ring is installed at each end of coil. Apply "Loctite 242" or
equivalent to threads on end of valve stem before installing nut.
B. Tighten nut to a torque of 34 N·m (25 ft-lb). Over-tightening may damage
the solenoid or cause the valve to malfunction.
6. Reconnect electrical connector to the solenoid.
Figure 140
2. Solenoid
140). When the solenoid valve coil (SV) is energized,
Page 6–40 Reelmaster ® 3100-D/3105-D
20252SL Rev A