Textron Jacobsen Super LF 1880 Fairway Mower with ROPS, Service & Repair Instructions

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ELECTRICAL SYSTEM
10I-32
SOLENOID TEST
The solenoid valves can be tested using the following
procedure.
1. Shut down the engine and place the ignition
switch in the RUN position and release the park-
ing brake.
2. Place the reel switch in the forward or reverse
position. An audible click should be heard in the
forward solenoid valve. If no click is heard, con-
tinue with the test. If a click is heard, the problem
may be in the hydraulic control valve. See
Section 8 for control valve information.
3. Remove the connector from the solenoid valve.
4. Set the multimeter to the 20 volts DC scale.
Figure 10I-6. Solenoid Power Test
5. Connect the test leads, red test lead to red wiring
harness connector wire and black test lead to the
black wire (Figure 10I-6). Activate the reel switch
in the appropriate position.
The multimeter should indicate battery voltage. If
no voltage is indicated, connect the black test lead
to the battery negative terminal and red test lead
to the solenoid red wire to check solenoid ground
connection. If no voltage is indicated, check the
wiring harness circuit using the electrical schemat-
ics in Section 10Q.
6. Set the multimeter to the 200
Ω
.
7. Connect the test leads to the solenoid socket
(Figure 10I-7).
The multimeter should indicate approximately
5.1
Ω
.
If coil is not within range, replace coil.
If there is no voltage indication on the multimeter,
replace the coil.
Figure 10I-7. Coil Resistance Test
LIFT/LOWER SOLENOID TESTING
The lift/lower control valve is mounted on the center
rear of the front axle (Figure 10I-8). The control valve
uses a double-sided solenoid valve to control the lift
and lower functions of the control valve.
The lift and lower solenoid coils can be identified using
the electrical schematics in Section 10Q. The solenoid
lift coil uses a tan power wire and black ground wire.
The lower solenoid coil uses a green power wire and
black ground wire.
The solenoid coils and circuits can be tested in the
same manner as the reel solenoid valve using the joy-
stick instead of the reel switch.
Figure 10I-8. Lift/Lower Control Valve