Solenoid Valve Coil (Tow Hitch Kit) - Toro ProCore Processor Service Manual

Solenoid Valve Coil (Tow Hitch Kit)

The ProCore Processor tow hitch kit uses four (4) sole-
noid valve coils on the hydraulic tow hitch manifold (Fig.
15). When the solenoid valve coils are energized, tow
vehicle hydraulic flow can be directed to the tow hitch hy-
draulic offset cylinder to change the position of the Pro-
Core Processor behind the tow vehicle.
NOTE: The four (4) tow hitch manifold solenoid valve
coils are identical and can be reversed for testing pur-
poses.
Testing
NOTE: A solenoid coil does not have to be removed
from the cartridge valve or manifold for testing.
1. Make sure that Processor ignition switch is in the
OFF position. Remove key from the ignition switch.
2. Disconnect wire harness electrical connector from
the solenoid valve coil that is to be tested.
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 from the measured value of the component you are
testing.
3. Measure resistance between the two coil connector
terminals. Resistance of the solenoid coil should be
approximately 7.1 ohms.
4. If solenoid coil needs replacement, see Solenoid
Valve Coil in the Service and Repairs section of this
chapter.
5. After testing, reconnect wire harness electrical con-
nector to the solenoid valve coil.
ProCore Processor
3
UP
4
1. Solenoid coil S1
2. Solenoid coil S2
Page 5 - - 11
1
2
Figure 15
3. Solenoid coil S3
4. Solenoid coil S4
Electrical System