SaMASZ AlpS 271, Operator'S Manual

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OPERATOR’S MANUAL SNOW PLOW ALPS / OLIMP
Permissible loads
A snow plow is a device especially in danger of overloading resulting from the type of work
involved. This chapter has as its goal familiarizing the user with permissible loads that the construction
of the heavy duty AlpS, Olimp, AlpS Up (H) and Olimp Up (H) plow can withstand and possible sources
of such loads
.
ATTENTION!
The manufacturer is not responsible for damages resulting from exceeding
permissible loads
.
The construction of the plow allows it to withstand loads which cause reactions within the actuator!! no
larger than 10 [Tons]!! . Exceeding this value can cause damage to the plow. In Tab. 5 are presented a
set of pictures depicting different kinds of permissible loads:
Tab. 5a) Permissible point loads of one side of the plow. Depending on the distance of the load from
the rotation axis of the moldboard it value can not exceed the values shown in the picture . For example
if we are acting with force on the end of the side of the plow AlpS 401 this force can not exceed 2 T.
With the AlpS 301 plow it is 2.8 T (2800 kg)
.
Tab. 5b) Permissible uniform loads of the plow. While pushing snow uniformly distributed along
the entire length of the plow its construction allows for snow pressure of 12 T .
Tab. 5c) Permissible loads of folding blades . For every lower folding blade the permissible load is 3 T .
Tab. 5d) Permissible dynamic loads . While working with the AlpS, Olimp, AlpS Up (H) plow, we must
pay attention to dynamic loads , which are the most frequent cause of plow damage. The tractor-plow
unit moving with the initial velocity V decelerates hitting the heap on the road S
h
with the plowshare. As
a result of deceleration of the mass of the tractor and plow force F
h
is created. The greater the mass
and initial velocity of the unit the greater the force F
h
. Reducing the distance of deceleration S
h
by
colliding with a hard material (for example frozen snow) also causes considerable increase of the force
F
h
. Tab. 6 shows approximate load values acting on the plow depending on the initial velocity V of the
unit with the mass of 5 T and the distance of deceleration S
h
.