Load Box - PRONAR T663/1 Operator's Manual

SECTION 3 Pronar T663/1 T663/1 SILO

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 wall (3) and rear wall (4). Side walls are 600 mm high. As standard, Pronar T663/1
trailer is also equipped with 600 mm-high side wall extensions made of profiled steel sheet. In
the case of T663/1 trailer, the 600 mm-high wall extensions are available as accessories.
The load box of T663/1 SILO trailer – figure (3.5) consists of 600 mm-high side walls (2) and
a front wall (3). In standard configuration, the trailer is equipped with two sets of 500 mm-high
wall extensions and a hinged rear wall (4). The rear wall is opened and closed by means of
two hydraulic cylinders.
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 (T663/1) and side walls are secured using pins in front side locks and locks
welded to rear stakes (5) 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 walls is performed using two levers (1) - figure (3.4), placed on the
front beam and in the case of the rear wall, using a lever (6) – figure (3.2), placed on the left
side of the load box.
Extensions are secured in the same way as the load box walls. Upper pins of the wall
extensions are secured in the front extension locks and locks of rear stakes (7). In the rear
part the closure is formed by lug (8) bolted to the wall edge. All lugs are equipped with pins
with cotter pins preventing them from falling out.
Walls and side wall extensions are connected with each other using linking cables (9), placed
in cable release mechanisms (10). Mechanisms are equipped with spring cotter pins, locking
levers in the set position and securing mechanism against accidental release.
3.5