7
7. INSTRUCTIONS FOR USE
Operations to perform before start-up.
Check the integrity of the unit.
Check the power supply pressure.
Check that the electric connection was carried out correctly.
Check that the unit is at the operating temperature.
7.1 USE
Open the manual cursor valve;
Press the start button on the machine to which the unit is connected or start it;
Check that the solenoid valves on the elements are correctly activated;
At the first start-up, it may be necessary to fill the oil pipes, wait until the lubricant exits;
Check that the lubrication is suitable (if there are doubts about correct operation, the Dropsa SpA technical office can be
contacted to request the inspection procedure).
7.2 REGULATION
The modular elements are normally supplied with the oil regulation and the air regulation completely closed. To regulate the
air/oil mixture for the individual elements, proceed as follows:
Turn the oil regulation knob clockwise to increase the flow rate or anticlockwise to decrease the flow rate.
Use a screwdriver to turn the air regulation pin clockwise to increase the flow rate or anticlockwise to decrease the flow rate,
until the desired spray is obtained.
8. PROBLEMS AND SOLUTIONS
A diagnostics table is provided below that indicates the main anomalies, the probable causes and the possible solutions.
If you were not able to solve the problem after consulting the diagnostics table, do not try to find the fault by disassembling
machine parts but contact the Dropsa technical office and report the discovered anomalies, with a detailed description.
DIAGNOSTICS TABLE
ANOMALY
CAUSE
SOLUTION
Lubrication does not take place
activating the solenoid valve.
Solenoid valve broken.
Replace the solenoid valve.
The air supply pressure is below 4 bar
[58psi]
.
Increase the supply pressure up to a
minimum of 4 bar.
The lubricant exits irregularly and with
large air bubbles visible in the Ø3 oil
pipe.
The Ø3 oil pipe is not perfectly engaged
into push-in of module.
Top up the tank with new lubricant.
Insert the pipe, making sure to insert it to
the end.
9. MAINTENANCE PROCEDURES
The units were designed and built in order to minimise maintenance requirements.
To simplify maintenance, it is recommended to install them in an easy to reach position.
(See paragraph 6.2).
Periodically check the pipe joints to detect any leaks.
Always keep the modules clean to be able to quickly detect any leaks.
The machine does not require any special equipment for any control and/or maintenance activity. It is recommended to use
tools and personal protective devices suitable for use in ref. to leg. Decree 81/2008, and that are in good condition according to
current regulations to prevent damage to people or machine parts.
ATTENTION: Make sure that the pneumatic power supply is disconnected before carrying out any maintenance
work.
ATTENTION: The unit may only be opened and repaired by authorised Dropsa personnel.
