Textron Jacobsen Super LF 1880 Fairway Mower with ROPS, Инструкции по обслуживанию и ремонту

Страница: 200 / 300

ELECTRICAL SYSTEM
10G-20
SENSITIVITY TEST
The reed contacts should close within 0.05” minimum
from alignment of the metallic object and the centerline
of the switch magnet (Figure 10G-4). The switch con-
tacts must remain closed for a minimum travel of 0.18”.
Travel of the metallic object may be from either direc-
tion.
Figure 10G-4. Typical Proximity Switch
REEL SWITCH TEST
The reel switch is mounted on the control panel. The
switch has three positions used to control the rotation
of the hydraulic reel motors. The center position of the
switch is OFF. Pushing the switch forward activates the
reel motor into forward rotation. Pushing the switch to
the rear activates the reel motor into reverse rotation
for back lapping the reels, removing grass buildup and
dislodging objects stuck in the reels. The switch
reverse position has a safety lock that must be pressed
in order to place the switch in the reverse position.
1. Shut down the engine and remove the ignition
key.
2. Remove the control panel from the top of the
hydraulic tank. Locate the reel switch and remove
the wiring harness connector, see Figure 10G-5.
3. Set the multimeter to the continuity scale.
4. Place the switch in the OFF (center) position and
test all terminals for continuity (Figure 10G-5).
Continuity should not be available between any
terminals.
5. Place switch in the forward position and test all
terminals for continuity (Figure 10G-5).
Continuity should be available between terminal 1
and terminal 2 and between terminal 4 and termi-
nal 5 only.
6. Place switch in the reverse position and check all
terminals for continuity (Figure 10G-5).
Continuity should be available between terminal 2
and terminal 3 and between terminal 5 and termi-
nal 6 only.
Sensing Area Proximity Switch
Metal
Target
Connector Plug