Lift Cutout Limit Switch; Down Limit Switch; Tilt Sensor; Figure 3-11: Limit Switch Locations - Upright SL30SL Service & Parts Manual

Section
3.8
Lift Cutout Limit Switch (Figure 3-11)
The lift cutout limit switch is a mercury switch that
prevents the lift cylinder from bottoming out when the
platform is raised.
1. Raise the platform to its' maximum height (mer-
cury switch may need to be rotated if switch is
cutting out lift function before cylinder bottoms
out).
2. Mark the cylinder rod 25.4 mm (1 in.) from base
of the rod. Lower platform slightly so the mark is
at cylinder head cap.
3. Disconnect the wires at the mercury switch and
connect an ohmmeter or continuity tester.
4. Rotate the switch until it just opens. If necessary,
tighten the locknut that mounts the switch.
5. Raise and lower the platform to verify the adjust-
ment.
6. Lower platform.
Magnets
Down Limit
Switches
8 Meter Cutout
Limit Switch

Figure 3-11: Limit Switch Locations

3-10
M
AINTENANCE
Down Limit Switch (Figure 3-11)
The down limit switches are dual proximity switches
which allow the machine to run at HI speed when the
platform is lowered.
1. Raise the platform 30 cm (12 in.) from its' fully
2. Disconnect the wires at the proximity switches
3. Move the brackets holding the magnets so the
4. Raise and lower the platform to verify the adjust-
5. Disconnect ohmmeter and reconnect wires.
6. Lower platform.
Tilt Sensor (Figure 3-12)
The tilt sensor has three wires; red-power (12v in),
black-ground, white-output (12v out). To verify the
sensor is working properly, there is one LED under
the sensor; red indicates the sensor is out of level
Cushion Down
and the white wire is "hot" (12v out).
Limit Switch
1. Level the platform with the platform controls using
Lift Cutout
Limit Switch
2. Adjust the platform bubble level with the three lev-
3. Dismount the platform and remove the cover from
4. Adjust the three leveling locknuts on the tilt sen-
5. Replace the mast pivot weldment cover.
lowered position.
and connect an ohmmeter or continuity tester.
switch just closes. Tighten the locknuts that hold
the brackets.
ment.
the inclinometer (p/n: 010119-000) to ensure the
platform is level ±1/4°. side-to-side and front-to-
back.
eling screws until the bubble is centered in the cir-
cle on the bubble level.
the back of the mast pivot weldment.
sor until the bubble is centered in the circle on the
attaches bubble level.

Figure 3-12: Tilt Sensor Adjustment

SL26/30SL Work Platform