Other Features 75
NOTE
Only in rare instances will adjustment be
needed in the counterclockwise direction.
4. Move centerline of small wheels of
wheelchair (with passenger) to within 24
inches of doorway and repeat aiming
procedure in previous step.
TWS MODULE DETAIL 23368
Test Aim of Acoustic Sensor Beam
1. Move wheelchair and passenger slowly
towards doorway. TWS should detect
wheelchair and passenger (LED will flash,
buzzer will sound and the module red light
will flash) when centerline of front wheels is
between 18 and 24 inches from doorway.
2. Open vehicle access door above lift. Lower
platform to ground and place wheelchair and
passenger at rear of platform. Rollstop (rear
barrier) should be up. Raise platform to floor
level. This normal platform motion with
wheelchair and passenger aboard should
not actuate TWS. If LED does flash (buzzer
will also sound and module red light will
flash), turn sensor adjustment screw slightly
counterclockwise.
NOTE
If an adjustment is made, repeat the previous
step where wheelchair is between 18 and 24
inches from doorway.
Adjust Acoustic Sensor Timing
1. Support a flat
sheet of cardboard, or similar
material, directly beneath TWS module at a
distance of 4½ feet below module. Sheet
must be facing sensors.
NOTE
Before proceeding, visually inspect sensors to
verify that they are pointing directly at floor, or
nearly, and are not pointing off at an extreme
angle..
CHECKING NORMAL PLATFORM POSITION 23372
2. Note the sensor timing access hole. This
hole provides access to a plunger-actuated
switch that sets the sensor timing. Insert a
1/16-inch diameter wire-like object into the
access hole and press the plunger inward.
The LED will flash momentarily while the
module establishes the distance and then
remain on steady. Release the plunger
when the LED ceases to flash.
NOTE
It is important that objects, such as your body,
tools, seats, etc, do not interfere with the
beam while the adjustment is being made.
INTERIOR APPOINTMENTS
To accommodate a wheelchair, two rows of
regular seats on one side of the coach must be
folded and slid away. Seats may be folded on
both sides of the coach to make room for a
second wheelchair.
POSSIBLE SEATING ARRANGEMENTS 23259
An electrical wheelchair or tri-wheeler may
require sliding back seats from both sides of the
coach to allow enough turnaround space.
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