Avdel 73440-02000, Instruction Manual, Page: 48 / 57

19
Putting Into Service
Pressure Settings
• Start the pump and press and hold the Up Arrow as previously described to build pressure in the pull / advance
circuit. While holding the Up Arrow button turn the relief valve control handle until the pressure display reads 530 to
550 BAR .
•
Note: To get an accurate setting, decrease the pressure to a point below the final setting and then slowly increase
the pressure until it reaches the final setting.
•
Tighten the relief valve locking nut.
•
Release the Up Arrow button. Then recheck the final pressure setting by pressing the Up Arrow and pressurising the
system.
•
De-activate the LOCAL mode by displaying the ‘LOCAL’ menu and toggling the setting to ‘OFF’. Save the setting by
pressing the MENU button once.
•
Display the ‘HI PRESS’ menu and adjust the value to 510 BAR using the Down Arrow button. Save the setting and
return to the ‘AVDEL’ display by pressing and holding the MENU button for 2 seconds.
Note: For the pressure relief valve and High Pressure switch to function correctly, the pressure relief valve setting
must be at least 20 bar higher than the High Pressure switch value.
Return Pressure Settings:
IMPORTANT – THE RETURN PRESSURE RELIEF VALVE SETTING MUST NOT EXCEED 225 BAR.
The return pressure relief valve will be factory set, but should this need adjusting the following process must be followed.
•
Disconnect the placing tool and hoses from the pump.
•
The return pressure relief valve is positioned on the left hand side of the valve block manifold. Refer to the
illustration below.
•
Connect the unit to the power supply and switch on as described on page 11 and 12.
RETURN PRESSURE
RELIEF VALVE
JAM NUT
ADJUSTMENT
SET SCREW
COPPER GASKET
ACORN NUT