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e alarms are preset to function by measuring the LEL (Lower Explosive Limit) as a percentage of the gas being
detected. Using 100% as fully combustible the display operates in the following manner: At 20% LEL (Lower
Explosive Limit) the High LED light is triggered. At 40% of LEL (Lower Explosive Limit) the High/High LED light
and Audible Alarm are triggered. is gives the vehicle occupants advance warning before explosive concentrations
are reached. e trigger points are preset and tested at the factory before delivery.
Note: e Polytron IR Gas Transmitter mounted on a BearCat is located under the vehicle on the driver side ahead of
the rear wheels. e Gas Transmitter on a BEAR is mounted behind the front bumper.
Note: For more information refer to the Drager Operation Manual.
Gunports
e Gunports are ring positions located throughout the vehicle. Common locations include: one at each door,
ree per side wall, and one in the roof mounted Hatch lid.
When operating Gun Ports; use an open hand to prevent potential pinching of ngers as the port opens. Push the
Gun Port Handle all the way in, allow the weight of the Gun Port door to swing the Gun Port open. To close the
Gun Port, rotate the handle 180 degrees. e port will seat itself back into the stowed position.
Rectangular ports with larger openings are located at key positions. e larger openings are meant to accommodate
weapons with various sights and other attachments.
Note: If a Gunport has an arrow on the interior surface it can only be opened in the direction of the arrow.
Hydraulic Ram Bar System
e Ram Bar System is a breaching tool that is deployed by inserting the Ram Bars into the receiver located at the
front of the vehicle. Slide pins on safety lanyards secure the Ram Bars to the vehicle and to each other. A push plate
is mounted in the end of the lead Ram Bar using the same type of safety lanyard. e Hydraulic Li System allows
height adjustability of the Ram Bar from the ground to approximately 10 plus feet. e vehicle can be maneuvered
with the Ram Bar in place and at dierent heights. Height adjustment is controlled by a rocker switch located in
the switch panel, on center console of the vehicle.
Rectangular Gunport
Round Gunport
Ram Bar Up
Hydraulic Ram bar Control
Ram Bar Down
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