LAUMETRIS PTL Series, User Manual

Page: 21 / 56

USER MANUAL Tractor semitrailers PTL 21

reverse until the hole of the hitch loop of the tractor coincides with the hole of the drawbar loop
of the semi-trailer;

insert a pin and fasten;

raise the hitch loop of the tractor to the required height;

pull up the hand-brake of the tractor;

raise the support of the semi-trailer to the required height;

connect the hydraulic and pneumatic systems of the semi-trailer with the respective systems of
the tractor;

connect the light signalling cable of the semi-trailer to the electricity system of the tractor;

check the operation of the hydraulic cylinders of the semi-trailer and tightness of the system;

check the operation of the brakes of the semi-trailer and tightness of the system;

check the operation of the light signalling of the semi-trailer;

before driving, make sure that the parking brake of the semi-trailer is released.
Repeat these actions every time when attaching the semi-trailer.
ATTENTION!
Any unauthorized persons are prohibited to stay between the tractor and semi-trailer when
attaching the semi-trailer!
6.2. Loading of a semitrailer’s tipping body
The semi-trailer may be loaded only when it is attached to the tractor and stands on a horizontal surface.
Before starting the loading operation, make sure that the tailgate and discharge port of the semi-trailer
are fully closed.
If the body is covered with a canopy, uncover it.
When loading, it is necessary to distribute the load evenly throughout the body. When transporting
materials that act the bottom of the body with a concentrated mass (e.g. large stones), cover the bottom of
the body with wood boards.
Do not overload in order to prevent spillage.
If necessary, cover the load with a canopy. Secure the canopy reliably.
If the items being transported project beyond the dimensions of the semi-trailer, follow the
requirements of the traffic rules.
While marking of the load and ensuring safety on the road.
ATTENTION!
It is prohibited to to exceed the maximum permissible total weight of the semi-trailer! In order
to avoid overloading, refer to the densities of the main materials to be transported set out in Table
Material Density, kg/m
3
Material Density, kg/m
3
Winter wheat 650-830 Fertilizers:
Spring wheat 620-800 Granulated ammonium nitrate 800-1000
Rye 650-790 Potassium salt, 30-40% 1000-1200
Barley 580-750 Superphosphate 950-1100
Maize 700-750 Lime powder 1500-1700
Oat 390-500 Earth (soil) 1600-1800
Buckwheat 640-700 Coal 1200-1600
Pea 780-800 Construction waste 1400-1850
Clover (seeds) 780-840 Concrete 1800-2800
Rapeseed 700-750 Sand, gravel 1500-1900
Sugar beets 570-700 Dry wood 500-800
Potatoes 640-770 Bricks 1800-1900
Combined Feed 480-690 Glass 2500-2700
Chopped maize silage 200-250 Cement, rubber 1600-1700