5-54 Other Features
DOB 1300-1556
PA-1639 Operator's Manual 2020 X3-45 Commuter
Wheelchair Occupant Restraint
Secure the wheelchair occupant in the following
manner:
Fasten and adjust the lap belts so it sits snug
across the hips. Make sure that you place the lap
belt buckle on the center aisle side. Fasten the
shoulder belt by inserting the lap belt tab into the
shoulder belt buckle. A retractor adjusts shoulder
belt length automatically.
WARNING
A snug fit with the lap belt positioned low on the
hips is necessary to maximize safety. The belt
should not be worn or twisted. Avoid pinching the
belt and/or hardware. Do not wear over rigid or
breakable objects such as eyeglasses, pens or
keys as these may cause injuries.
CAUTION
The safety belt buckle provided with the red
release button must always be located on the
center aisle side.
To unfasten the belts, press the red release
button on the shoulder belt buckle first and then
unfasten the lap belt by pressing the red release
button on the lap belt buckle.
WHEELCHAIR LIFT SYSTEM -
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.
FIGURE 23: TWS AREA
2. 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.
3. 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.
NOTE
Only in rare instances will adjustment be
needed in the counterclockwise direction
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