Other Features
74
thereby enables the lift. When turned on, the
power switch and each button illuminate. When
operating the lift, be careful the control wire
doesn’t bind with the lift mechanism.
Using the handheld control pendant, deploy the
lift by pressing on the DEPLOY button.
When the lift begins to deploy, it is normal to
hear a clutch action of one or two clicks should
be heard. Once deployed, lift the handrails until
locked in vertical position. Buckle the restraint
belt.
Use the UP and DOWN buttons to raise or lower
the platform. Upon reaching the top or the
bottom of its stroke, the appropriate rollstop will
lower.
NOTE
The restraint belt acts as a safety device and it
prevents raising or lowering the lift when not
buckled.
Roll the wheelchair onto the platform with the
wheelchair facing outwards because the front
rollstop is not designed to keep the large rear
wheels of a wheelchair from rolling off the
platform.
CONTROL PENDANT 23364
WARNING
Use extreme care when rolling on or off the
platform and lock the wheelchair brakes while
stationary on the platform. Make sure the
wheelchair fits safely on the platform. Keep
arms and legs away from moving parts.
To stow the platform, detach the restraint belt
and fold the left handrail, then fold the right
handrail (lift the slam lock handles to fold
handrails). Re-fasten restraint belt. Press down
and hold the STOW button until the lift is fully
stowed.
THRESHOLD WARNING SYSTEM (TWS)
ADJUSTMENT
There are three verifications to perform; 1)
Adjust Aiming of Acoustic Sensor Beam, 2) Test
Aim of Acoustic Sensor Beam, and 3) Adjust
Acoustic Sensor Timing.
Adjustment of the sensor timing is done at the
factory and should not need to be repeated in
the field. Readjustment should only be
considered if the sensor aiming could not be
adjusted to ignore both the wheelchair in the
aisle and the platform during its normal
movement.
Adjust Aiming of Acoustic Sensor Beam
1. Place wheelchair with passenger in center
aisle of coach, pointed at doorway where
Threshold Warning System (TWS) is
installed. The TWS should not detect a
wheelchair and passenger when they are
located this far from doorway.
TWS AREA 23371
2. Turn power to lift on (LED on TWS module
will light steady) and indicator light on the
control device illuminates. If wheelchair and
passenger are detected by acoustic sensors
the LED will flash, the buzzer will sound and
the module red light will flash. If this occurs it
is necessary to adjust aiming of sensors.
3. Turn sensor angle adjustment screw
clockwise to move direction of beam away
from center aisle and towards doorway.
Stop adjustment when LED ceases to flash.
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