PREVOST H 2018 Series, Руководство оператора

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5-50 OTHER FEATURES
PA1628 H3-41, H3-45 Operator’s Manual
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.
NOTE
Only in rare instances will adjustment be
needed in the counterclockwise direction.
1. 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.