Yale MPB040-E, Руководство пользователя

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Lift Link Proximity Sensor (MPW050-E)
The lift link proximity sensor is located near the bot-
tom of the control panel. This sensor detects the lift
linkage position when the forks reach maximum lift
height and stops the lift pump motor. In the event that
the lift pump motor continues to run after the forks
reach maximum height, check the lift link proximity
switch for proper function and adjustment. See Fig-
ure 19.
1. CONTROLLER
2. PROXIMITY SENSOR
3. HORN
Figure 19. Lift Proximity Sensor Location
CHECK
1. Remove the electrical compartment covers. Turn
the key switch to the
ON position and move the
control handle arm to the RUN position. Check
the battery discharge indicator for proper battery
charge.
2. Completely lower the forks then press and hold
the lift button. The lift pump and motor assembly
should activate, raise the forks to their maximum
lift height, and turn off while the lift button is still
depressed.
a. If the lift pump and motor activates but does
not raise the forks, the problem may be in the
hydraulic or lift linkage systems.
b. If the lift pump and motor does not activate,
troubleshoot the electrical system.
c. If the forks raise properly but the lift pump and
motor does not shut off when the forks reach
maximum lift height, unplug and clean the
proximity sensor connector. Reconnect the
sensor with the wiring harness and check oper-
ation again. If the problem remains, proceed to
the next step.
CAUTION
Keep hands and fingers clear of lift linkage to
avoid injury from pinch points.
3. Cover the face of the proximity switch with a piece
of metal then press and release the lift button.
a. If the lift pump and motor shut down when the
sensor is covered, properly adjust the lift link-
age proximity sensor. See Adjust.
b. If the lift pump and motor assembly continues
to operate when covered, test the lift linkage
proximity switch. See Test.
REPAIR
The following repairs are performed with the key
switch in the
OFF position and the electrical compart-
ment cover removed unless otherwise noted. Replace
the cover when repairs are complete.
Remove
1. Disconnect the sensor wiring connector from the
truck wiring harness.
2. Remove the front jam nut from the position sensor
threads. See Figure 20.
3. Remove the sensor from the mounting bracket on
the truck frame.
4. Remove the rear jam nut if replacing the senor.
Test
1. Remove the lift linkage proximity sensor. See Re-
move.
Lift Link Proximity Sensor (MPW050-E) 2200 YRM 1007
30