Operating manual
Tractor mounted snow plow
Smart (K), Lite 150, Uni
-
18
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Tab. 4.
Schematic visualization of the permissible loading of the Smart plow
Tab. 5.
Approximate force
F
h
acting on the plow, at speed
V
and stopping distance
S
h
with a tractor weight
equal to 3 tons – according to Tab. 4d
Braking distance
S
h
= [cm]
Estimated head force
F
h
= [T], for braking of tractor with mounted plow at
speeds
V
.
5 km/h
10 km/h
20 km/h
10 cm
1
11
16
20 cm
0,5
3
8
30 cm
0,3
1,2
3
40 cm
0,2
0,5
2
The table above is a demonstration to show the operator how suddenly the forces change
depending on speed and stopping distance.
The initial force under which the moldboard starts to tilt depends on the initial spring
setting. The initial spring setting can be adjusted in the range of
0
to approximately
60 mm
using
the four tension bolts located in the upper part of the moldboard. As evident in
Tab. 6
this force is
not constant as the moldboard tilts but rather changes unevenly. The table above shows the
working of the blade with the initial spring setting at
30 mm
. The greatest resistance force
Fu
is
created in the moldboard between tilt angles of
35
o
and
45
o
from starting position. By increasing
the initial spring setting the
Fu
is also increased along with the pressure on the entire plow, which
can lead to damage of the plow especially with greater operating speeds. If the initial spring
setting is high then great care should be taken to maintain low plowing speed, since in the event of
encountering an obstacle this will allow the operator to quickly stop the tractor.
Lateral coping is achieved thanks to the oval, vertical openings in the mountings of the front
TPH of municipal tractors. If the front TPH is not equipped with this solution then care should be
taken during plowing, especially on uneven terrain.
a)
Schematic of the permissible loads
affecting the Smart plows
up to 3 tons
Ground
Fu - Force tilting
the blade
Distribution of permissible loads of the Smart
plows with SJ2F-50-28x200
actuator - up to 3 tons
F=3 tons
Schematic of the permissible loads of the
Smart plows
Option 1
Option2
F=3 tons
up to 1500 kg
Fmax up to
800 kg
b)
c)
d)
