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

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ELECTRICAL SYSTEM
10G-22
4 WHEEL DRIVE SWITCH TEST
The 4 wheel drive switch is mounted on the control
panel. The switch has two positions (ON/OFF) used to
control the traction capability of the mower by switching
from 2-wheel drive to 4 wheel drive. The switch can be
tested as follows:
1. Shut down the engine and remove the ignition
switch.
2. Remove the control panel from the top of the
hydraulic tank. Locate the 4 wheel drive switch
and remove the wiring harness connector, see
Figure 10G-7.
3. Set the multimeter to the continuity scale.
4. Place the switch in the OFF position. Check conti-
nuity between all terminals (Figure 10G-7).
Continuity should not be available between termi-
nal 1 and terminal 2.
5. Place the switch in the ON position. Check conti-
nuity between all terminals (Figure 10G-7).
Continuity should be available between terminal 1
and 2.
NOTE:
Replace the switch if it does not meet the above
test results.
Figure 10G-7. 4 Wheel Drive Switch
JOYSTICK TEST
The joystick is mounted on the control panel and has
three positions (RAISE/OFF/LOWER). The joystick is
used to raise and lower the reels. The joystick can be
tested as follows:
1. Shut down the engine and remove the ignition
key.
2. Remove the control panel from the top of the
hydraulic tank. Locate the joystick and disconnect
the wiring harness connector, see Figure 10G-8.
3. Set the multimeter to the continuity scale.
4. Holding the joystick in the OFF position, check all
terminals for continuity (Figure 10G-8).
Continuity should be available between terminal 1
and terminal 3 and between terminal 6 and termi-
nal 4 only.
5. Holding the joystick in the raise position, check all
terminals for continuity (Figure 10G-8).
Continuity should be available between terminal 1
and terminal 2 and between terminal 6 and termi-
nal 4 only.
6. Holding the joystick in the lower position, check all
terminals for continuity (Figure 10G-8).
Continuity should be available between terminal 6
and terminal 5 and between terminal 1 and termi-
nal 3 only.
Position Terminal Continuity
OFF None
ON 1 & 2
If other terminals test with continuity, the switch
should be replaced.
1 2
ON OFF