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SECTION 3
Pronar 683
3.2.2 LOAD BOX
Trailer's load box consists of: upper frame (1) – figure (3.2) with welded steel floor, side walls
(2) front side (3) and rear side (4). Side walls are 800 mm high. As standard, Pronar T683
machine is also equipped with side wall extensions of steel sheet profile and height of 600
mm. Additional 600 mm wall extensions are also available to obtain total wall height of 800
+ 600 + 600mm. Another optional arrangement is 800 + 800mm.
The load box is mounted on sockets of the rear beam and front crossbar of the lower frame -
compare with figure (3.1). The chosen tipping direction is achieved by positioning the pin in
the appropriately profiled socket opening, the construction of which prevents their
inappropriate placing by trailer operator.
Load box rear and side walls are secured using pins in front side locks and locks welded to
rear stakes (5) and middle stakes (13) of side housing. In the lower part they are locked using
bolting hooks placed in the left and right longitudinal beam and also in the rear upper frame
beam. Closing and opening the front of the side walls (2) is done using two levers (1) - Figure
(3.3), placed on the front beam and, in the case of rear side walls (15) with a lever (6) -
Figure (3.2), on the left and right side of the load box. Opening and closing of the rear wall (4)
is accomplished using the arms positioned next to the lever (6).
Extensions are secured in the same way as the load box sides. Upper extension pins are
secured in extension front locks and rear stake (7) and middle stake (14) locks. In the lower
part the closure is formed by hinges (8) welded to the side wall edge. All hinges are equipped
with pins with cotter pins preventing them from falling out.
Middle stakes of walls(13) and wall extensions (14) bound together by linking cables (9).
Cables are anchored in stakes with eyebolts.
3.5
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