Accessory Solenoid - Toro Multi Pro 1200 Service Manual

Accessory Solenoid

The accessory solenoid provides a current supply to the
spray system, boom actuators and optional accessories
(e.g. foam markers). The solenoid is energized when
the ignition key switch is in the RUN position. The acces-
sory solenoid is located under the operator seat (Fig.
23).
Testing
1. Park machine on a level surface, stop engine, en-
gage parking brake and remove key from ignition
switch.
2. Disconnect battery cables from battery. Make sure
that negative (--) cable is removed from battery before
positive (+) cable.
3. Raise operator seat and locate accessory solenoid.
Put labels on wires for proper installation after repairs
are completed. Disconnect machine wire harness con-
nectors from solenoid.
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 the measured value of the component you are
testing.
4. Apply 12 VDC directly across the solenoid coil posts
(steel). The solenoid should click as the solenoid coil is
energized. Make sure resistance across the main con-
tact posts (copper) is less than 1 ohm.
5. Remove voltage from solenoid coil posts. The sole-
noid should click as the solenoid coil is de--energized.
Make sure resistance across the main contact posts is
infinite ohms.
6. With no voltage to any of the solenoid coil posts,
measure resistance of the coil across the solenoid coil
posts (steel). Resistance should be approximately 13.5
ohms.
7. Replace accessory solenoid if necessary.
8. Using labels placed on wires before removal, con-
nect electrical connections to solenoid.
9. Connect battery cables to battery. Make sure that
positive (+) cable is secured to battery before negative
(--) cable is attached to battery.
10.Lower operator seat.
Electrical System
4 2
3
5
1. Accessory solenoid
2. Lock washer (2 used)
3. Jam nut (2 used)
4. Boot
1
2
2
1
1. Main posts (copper)
Page 5 - - 16
1
8
6
Figure 23
5. Nut (2 used)
6. Harness connectors
7. Flange nut (2 used)
8. Cap screw (2 used)
2
1
WIRING
DIAGRAM
Figure 24
2. Solenoid posts (steel)
Multi Pro 1200/1250
7
2
1