Hydraulic Valve Block Solenoids - Toro Reelmaster 5100-D Service Manual

Hydraulic Valve Block Solenoids

1. Disconnect the wire connector.
2. Connect a 12 volt battery so the positive (+) battery
terminal is connected to colored solenoid lead. Connect
the negative (–) battery terminal to black lead. The valve
spool should retract completely as 12 V.D.C is applied
between leads.
3. If valve spool does not retract check for binding or
damage in valve.
4. If valve operates smoothly, but does not retract when
12 V.D.C is applied to solenoid leads, replace solenoid
coil.
5. If valve still does not retract after replacing solenoid
coil, replace the valve.
NOTE: To to a quick test without removing solenoid
valve, hold a screwdriver to top of affected valve. When
solenoid is energized, screw driver should be attracted
to valve stem, due to magnetism from energized sole­
noid. This test will not identify a sticking valve spool.
Resistance specifications:
20 Watt solenoid:7.2 Ohms
28 Watt solenoid: 5.1 Ohms
Testing
Page 5 - 28 Rev. B
1
Figure 27
1. Solenoid
Solenoid Wire Identification
Solenoid Power Wire Color
1S Pink/Blue
2S Brown/White
3S Orange/Blue
4S Yellow/Black
5S Yellow/White
6S Orange/Red
7S Yellow/Blue
8S Black/Red
9S Brown/White
VS1 Orange/Black
VS2 Orange/White
Figure 28
Reelmaster
®
5100-D