Air Burners, Inc.
T-400 Air Curtain Trench Burner with Kubota V3600-TE Engine
OPERATING MANUAL
Page 12 of 34
(Vers. 09.15)
HOW TO BUILD A PIT
1. The pit needs to be constructed with straight, vertical walls to the dimensions shown
on Page 13.
2. With the manifold resting on the ground, mark the outline of the pit. Leave the trailer
and manifold in position if possible as it will save time in relocating the trailer.
3. Excavate as close to the manifold without damaging it (see the photo on the next
page). This will give you the proper manifold position to
ensure that the manifold
does not protrude over the edge of the pit
which may lead to excessive tem-
perature build-up in the manifold which will cause damage to the manifold.
4. The ground under the machine needs to be as close to level as practical. If the
ground slopes down from the pit this will cause the air curtain to be too high and if
the ground slopes up from the pit this will cause the angle to be too low.
NOTE: IF YOU HAVE TO BUILD UP THE GRADE IT IS IMPORTANT THAT THE
FILL IS WELL COMPACTED, SUCH THAT A STABLE PIT MAY BE FORMED.
5. After the pit has been used for several days, it may need some re-construction due
to partial collapse. After the pit becomes wider that 10 feet and the walls are less
than vertical, the unit will begin to lose its effectiveness and may start to emit more
smoke and particles than desired. At this point you should either repair the pit or re-
locate and construct a new pit.
DANGER:
THE PIT SHOULD BE PROTECTED AT ALL TIMES, USING A
SUITABLE FENCE, BARRIER OR ENCLOSURE, TO PREVENT PERSONNEL
OR ANIMALS FROM FALLING IN.
