Athena 850-BL EVO, Translation Of Original Instructions

Page: 125 / 183

PAGE
125 ALMAC s.r.l.
Checking the maximum pressure valves relating to lifting (2)
The pressure gauge relating to this valve is the one connected to outlet 4.
d)
Start the internal combustion engine.
e) Press the platform "up" button ( 15 ) until it reaches the limit and hold it
down. This activates the pressure relief valve of the lift circuit.
f) Read the pressure on the gauge, which should be 160 bar ± 5 bar
Warning: to allow the lifting cylinder to reach its mechanical limit switch, it is
necessary to disable the electronic limit switch. Only specialised technicians,
authorised by Almac Srl, must perform this operation.
The valves are calibrated during the testing phase performed by ALMAC Srl and
should not require further adjustment unless:
•
the hydraulic circuit is replaced
•
the actual pressure relief valve is replaced
In these cases, the valve must be calibrated by SPECIALIZED PERSONNEL
according to the monitoring procedure described above. Using the appropriate
tools, unscrew the lock nut (1) and tighten or loosen the adjuster screw (2) until
the indicated pressure level has been reached. Once the adjustments have
terminated, tighten the lock nut (1) to hold the screw in position.
Diagram of the pressure relief valve
Warning: the calibration operation must only be performed by SPECIALIZED
personnel. It must not be done by a generic operator.