TIGIEFFE Airo V Series, Руководство по эксплуатации и обслуживанию

Страница: 62 / 103

Use and Maintenance Manual - Series V8 E V10 E Page 62
7.2.7.
Pressure relief valve operation check
The main pressure relief valve controls the
maximum pressure of the hydraulic circuit.
Normally, this valve does not require any
adjustment, since it is calibrated at the factory
before the machine is delivered.
Calibration is required:
▪ in case of replacement of the hydraulic
block
▪
in case of replacement of the pressure
relief valve only.
Check operation at least once a year
Fig.24
To check the operation of the pressure relief valve:
▪
Introduce a pressure gauge with full scale of at least 150 bar in the special quick coupling (1/4” BSP) A;
▪
Using the ground control panel, lift the machine of the telescopic column up to the end stop;
▪
Check the pressure value. The correct value is indicate d in the chapter “ Technical features " .
To calibrate the pressure relief valve:
▪ Introduce a pressure gauge with full scale of at least 150 bar in the special quick coupling (1/4” BSP) A;
▪
Locate the pressure relief valve of lifting circuit B;
▪ Unscrew the adjusting dowel lock-nut.
▪ Using the ground control panel, lift the machine of the telescopic column up to the end stop;
▪ Adjust the pressure relief valve by means of the adjusting dowel so as to reach the pressure value indicated
in chapter " Technical Features " .
▪
Once calibration has been carried out, lock the adjusting dowel by means of the lock-nut.
WARNING!
AS THIS OPERATION IS VERY IMPORTANT IT IS TO BE CARRIED OUT BY SKILLED
TECHNICIANS ONLY.
7.2.8.
Operation check of the turret inclinometer
WARNING!
Usually the inclinometer does not need to be adjusted unless the electronic control unit is
replaced. The equipment necessary for the replacement and adjustment of this component is
such that these operations should be carried out by skilled personnel.
AS THIS OPERATION IS VERY IMPORTANT IT IS TO BE CARRIED OUT BY SKILLED
TECHNICIANS ONLY.