51
Caution
the stability zone of the barycenter
In order to make the truck stable, the combined center must be
within the triangle which is made up of the two points where the
two front wheels touch the ground and the midpoint of the back
driving axle.
If the combined center is in the front driving axle, the two front
wheels become two fulcrums, and the truck will overturn. If the
combined center departs the triangle, the truck shall overturn in
the corresponding direction.
Caution
the max load
The distance between the load center and the front surface of
forklift or load backrest (select the min) on the forklift is called
LOAD CENTER DISTANCE. The max gravity that the truck can
load is called MAX LOAD on condition that the load is on the
load center distance. The relationship of MAX LOAD and LOAD
CENTER DISTANCE is specified on the load capability chart. If the
load center is moved near the front of forklift, the load should be
reduced.
Caution
the load capability chart
This chart shows the relationship of MAX LOAD and the
location of LOAD CENTER DISTANCE. Check whether
the load and load center distance is in the range referred
by the chart. Put the most important parts near the load
backrest if the shape of goods is asymmetrical.
Caution
speed and acceleration
A static object keeps its static station which is not affected by outside force, one dynamic object
moves with the same speed which is not affected by outside force, this is inertia.
Because of inertia, one force affected backward when the truck is moving, one force affected
forward when the truck is stopping.
It is very dangerous to press the brake suddenly. It may result in capsizing or sliding down of the
load because of huge force to the front.
Centrifugal force is present during turning and its direction is from the turning center to the outer.
If the force is strong enough, it may result in the capsizal of the truck. The right-and-left stable
zones are very small, so the truck‘s speed must be reduced when turning to prevent capsizing. If
the truck is carrying a load with the forks raised high, the possibility of capsizing is very great.
