3.
- Non Stop
Security Systems
NF
Models
:
Security guaranteed through shearbolts. When the
point meets an obstacle it breaks in order to allow the tine to
turn over its placing. In order to continue the labor you must
rearrange the tine again and change the shearbolt F
(fig.3)
NOTE
: Ovlac shearbolts are calculated to break at a certain
pressure. It is important to use original shearbolts. The use of
other kind of bolts fully cancels any warranty the machine
may had.
Fig. 3
NH Models: “Non-Stop” Hydraulic Security System works automatically. When the
point meets an obstacle, the system gives up, allowing the tine to lift up and save
the obstacle, getting back its original position without stoping the tractor. (Fig. 1)
In the HYDRAULIC models, in order to adapt the plough to the conditions of the
terrain, you may regulate the trigger pressure by injecting (hard terrains) or
retiring (soft terrains) oil from the circuit and modifying the pressure in the whole
system.
This operation is done from the tractor’s cabin through the pressure gauge M,
supplied for such purpose, after opening the key L (Fig. 3).
The key L closes in parallel position to the tube, opposite to the normal, in order to
avoid any object at the terrain impacts against it while laboring, causing an
opening on the circuit.
Important: always works with a pressure in between 100 and 135 bars.
NOTE: OVLAC Non-Stop security systems are regulated in factory with an optimum
pressure for mid hardness terrains.
Fig. 4
8
Fig. 2
Fig. 5
Fig. 6
L
M
F