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Construction and principle of operation
3.2 CHASSIS
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10
1
3
Figure 3.1
Trailer chassis
(1) lower frame,
(4) rear beam
(7) unbraked half shaft
(10) wire support
T679/4M trailer chassis is made with
tandem suspension (Figure 3.1). The
lower frame (1) is a welded structure made
of steel sections of triangle shape. The
basic load-bearing element of the frame
are two longitudinal members connected
with crossbars. The left side member has
a parking brake crank mechanism (8). Next
to the parking brake mechanism there are
support wedges (9).
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8
5
(2) swingarm
(5) parking support
(8) parking brake
(11) road wheel
In the central part of the frame there is
a tipping cylinder bed (12), next to it there
is a service platform for the load box. In
the rear part of the frame there are pins
forming the tipping body of the load box.
Bumper (4) is located below. At the rear of
the frame there is a tandem wheel set.
The tandem suspension consists of longi-
tudinal arms (2) to which the drive shafts
(6) and (7) were welded. The drive shafts
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9
(3) drawbar eye
(6) braked shaft
(9) support wedges
(12) tipping cylinder
PRONAR T679/4M
Chapter 3
4
7
2
609 G.01-1
3.3
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