Upright X Series, Service & Parts Manual

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Page 3-8
Maintenance
3.7 - Switch Adjustments
X Series Work Platform
3.7 S
WITCH
A
DJUSTMENTS
T
ILT
S
ENSOR
I
NTRODUCTION
The Tilt Sensor Is located on the chassis between the scissor sections and is covered with a pro-
tective metal box. It has three wires: red-power (24 v in); black-ground; white-output (24 v out).
To verify the sensor is working properly there is one red LED under the sensor that indicates the
sensor is off level.
Figure 3-9: Level Sensor
A
DJUSTMENT
1. Place the machine on a firm, level surface ± 1/4°.
2. Use the Inclinometer (P/N: 10119-000-00) to ensure
the front and rear of the Chassis is level ± 1/4°.
3. Use the Chassis Controls to raise the platform to
approximately 9.5 Ft. (2.9 m).
4. Install the Scissor Brace (see Page 3-4).
5. Remove the Tilt Sensor Electrical Box cover at the
front of the machine.
6. Adjust the three leveling lock nuts until the bubble is centered in the circle on the attached
bubble level.
7. Replace the Tilt Sensor Electrical Box cover.
8. Store the Scissor Brace and lower the platform.
T
EST
Raise the platform approximately 7 feet, then push the level sensor to the side. The red LED
should turn on, and the tilt alarm should sound.
D
OWN
L
IMIT
S
WITCH
The Down Limit Switch provides power to the High Speed Circuit when the platform is completely
lowered and enables the Tilt Sensor/Depression Interlock Circuit when the platform is elevated.
The Down Limit Switch is located on the chassis frame at the front of the machine near the low-
est pivot tube of the elevating assembly. The switch adjustment is to be performed with the plat-
form completely lowered.
Figure 3-10: Down Limit Switch
1. Disconnect the switch wires at the control module by unplugging
the slide terminals.
2. Loosen the bolts securing the switch to the chassis mount just
enough to allow the switch to slide. Slide the switch down.
3. Use a multimeter to check continuity in the switch. The switch
contacts should be open (no continuity). Slowly slide the switch
upward until the contacts close. Tighten the bolts to secure the
switch in place.
4. Connect the switch leads.
5. Elevate the platform six inches and verify that the high speed circuit is inoperable. If the high
speed circuit is operable, the switch is not properly adjusted and the above procedure must
be repeated.
W A R N I N G
! !
Always use the elevating assembly brace whenever it is necessary to enter
the elevating assembly when the platform is elevated.
060571-005