UNIA HARRIER, Operating And Maintenance Manual

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OPERATING AND MAINTENANCE MANUAL HARRIER
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b) hydraulic protection
WARNING! THE HYDRAULIC SYSTEM IS UNDER
PRESSURE!
Never manipulate the gas supply valve!
Inspection and maintenance of the pressure accumulator may only be carried out by a
qualified service. Any interference with the pressure accumulator results in a loss of
warranty.
Never disconnect any hydraulic connections when the system is pressurized!
The diaphragm accumulator is filled with nitrogen. The maximum filling pressure is
indicated on the label attached to the accumulator housing
Fig 10.
Hydraulic protection – HARRIER H
In order to pressurize the hydraulic system to the required working pressure and to bleed
it:
•
clean the hydraulic connections
•
connect the hose [A] to the tractor
•
open the valves [B] and [E]
•
pressurize the machine hydraulic system to the desired working pressure, controlling the
flow with the controller
[C] , while observing the pressure gauge [D] ,
•
in order to bleed the hydraulic system, lower the machine to the ground, move forward,