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D-TEC O
M
PERATOR
S
3.3.2 Operating the Mast
To extend the mast, hold the Up/Down Switch to the UP position.
For a:
Pneumatic mast, the Air Control Valve will energize and the mast will begin extending
Stiletto mast, the mast sill begin extending.
Provided there are no alarms or fault conditions, the mast will be able to be extended to full
extension.
When extending the mast, it is possible that one or more of the following conditions may be
encountered:
AC Voltage (Electric Field) Detected
AC Current (Magnetic Field) Detected
Should the D-TEC encounter an electric field (AC voltage) or magnetic field (AC current), an
audible alarm will sound, the appropriate LED on the Display will light, and the D-TEC will
disable the mast.
For a:
Pneumatic mast, the Air Control Valve will change state and lower the mast as long as
the toggle is held in the Up Position. As soon as the Up/Down Switch is released, the Air
Control Valve will be deactivated and the mast will stop.
Stiletto mast, the mast will s change state and lower as long as the toggle is held in the
Up Position. As soon as the Up/Down Switch is released, the mast will stop.
To lower the mast, move the Up/Down Switch to the DOWN position.
3.3.3 Clearing an Alarm
In the event the D-TEC has generated an alarm, the operator has the ability to clear the alarm
by momentarily pushing the Override/Clear Switch. This will enable normal operation of the
mast. Should the alarm occur again, the mast will be disabled and the appropriate warning
message will be played again.
3-4
ANUAL
TP-5522901-00
July 2018
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