ENG
1 0991 486
EN
-
29.09.2016
4 / 11
DLV
VALVE MANUAL
I
NSTALLATION
,
U
SE AND
M
AINTENANCE
0.4
GENERAL ORDERS
The valves shall be maintained in good working order in accordance with the European Standards.
To this effect, regular maintenance of the installation shall be carried out, to ensure, in particular, the safety of
the installation.
The safety of an installation shall take into account the ability to be maintained without causing injury or damage
to health.
Regular maintenance of the installation shall be carried out to ensure the reliability of the installation.
The access and the associated environment shall be maintained in good working order.
The competence of the maintenance person within the maintenance organization shall be continuously updated.
0.5
LIABILITY AND WARRANTY
These instructions are intended for people with experience in installation, adjustment and maintenance of
hydraulic lifts.
GMV disclaims any liability for damage caused by improper or different use from what described in these
instructions or inexperience or carelessness of those responsible to assemble, adjust or repair hydraulic
components.
GMV's warranty is voided if you install any components or parts not original, if you make unauthorized
changes or modifications or made by unauthorized or unqualified personnel.
Unless otherwise indicated, the following situations are forbidden for safety reasons:
-
Any product modification;
The installation of the product for purposes other than those described;
Damage to the joints;
Carrying out maintenance or inspections improper or inadequate;
The use of improper accessories and not original spare parts or materials from GMV.
NOTES
Indicates information which contents must be seriously taken in consideration.
WARNING
Indicates that the described operation may cause, damages to the system or physical damages if
performed without complying with the safety standards.
To install or replace system components,we should pay attention to the following measures:
-
Make the car lift rest on the buffers
-
make sure the lift shouln’t be unintentionally powered,locking the main switch
-
bring to zero the pressure before opening the hydraulic circuit,removing cups,unscrewing fittings
-
In case of welding,be care the slags do not get in touch with the fluid,the jask and the gaskets
-
Remove the fluid in excess,the leakages,keep clean the system to find out and consequently remove the
leakages
WARNING
Before starting all kind of installation operation:
ALWAYS verify that all the safety devices, mechanical or electrical, are active and working properly
1
FEATURES AND REQUIREMENTS
1.1
DLV A3 VALVE
The DLV A3 is a pilot-operated non-return valve that must be mounted
between the cylinder and the 3010 control valve or any other control valve
for lifts,traditional or electronic.
The valve should be installed as close as possible to the main hydraulic block
but in special cases can be installed also close to the cylinder without
compromising its function.
During the upward phase it works as a normal non-return valve . So the
pressure of the oil sent from the pump can control the opening degree.
In down direction however, when energized, the valve allows the passage of
oil from the cylinder to the main block and then into the tank.When de-
energized, the solenoid valve immediately closes and stops the car.
