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水ポンプ DROPSA 3420000のPDF 使用およびメンテナンス・マニュアルをオンラインで閲覧またはダウンロードできます。DROPSA 3420000 6 ページ。 Piston pump

6.2 INSTALLATION

There is no assembly required for the pump.

Provide adequate space for installation, leaving a minimum clearance space of 100 mm (3.93 in.),

For mounting to wally, it is necessary to provide adequate space (as is indicated by the installation diagram). Subsequently, it is

necessary to hydraulically connect the pump. During the disassembly phase, disconnect the hydraulic part.

7. OPERATING INSTRUCTIONS

7.1 PRELIMINARY OPERATIONS

Check the integrity of the pump. (The unit can be opened and repaired only by specialized personnel.)

Ensure that the hydraulic connection has been carried out correctly.

Use lubricant that is free of impurities.

7.2 PUMP USE

The pump is mechanically operated by reciprocating action of the machine. It is important that the operating system allows for

the technical specifications of the project to be adhered to (stroke length, max. number of pumping cycles, etc.). The pump has

a reverse function where the piston is pressed, it goes into suction mode, while, when it is released, the oil is delivered for use.

We recommend carrying out a few cycles to bleed the air from the system.



Using the pump submerged in fluids or in a particularly aggressive or explosive/flammable environment is prohibited

unless it has been prepared ahead of time by the supplier for this purpose.



Wear gloves and eye protection as required by the oil lubricant safety data sheet.



DO NOT use aggressive lubricants for NBR gaskets; in the case of doubt, contact the technical office.



Never ignore health hazards and always follow sanitary regulations.

8. PROBLEMS AND SOLUTIONS

FAULT

The pump does not dispense

the exact prescribed quantity

The pump does not dispense oil

at the prescribed pressure.

The pump does not dispense

and only weakly sucks oil from

the reservoir.

* The reservoir is not included within the scope of supply.

9. MAINTENANCE PROCEDURES

The pump has been designed and built in a way to require minimum maintenance.

In order to simplify maintenance, we recommend installing it in a position that is easy to reach.Periodically check the joints of

the pipes and always keep clean the pump for leakage or faults.

The machine does not require special tools for any check and/or maintenance operations. It s recommended to use suitable

equipment and personal protective equipment (gloves) that are in good condition in accordance with applicable regulations to

avoid injury to people or damage parts of the pump.

ATTENTION: Ensure that the hydraulic power supply is disconnected before carrying out any maintenance operations.

In the event of doubts and/or irresolvable problems, do not search for the fault by disassembling parts of the machine, but

rather contact the Dropsa Technical Office S.p.A.

CAUSE

The pump sucks air because the

reservoir* is empty

The fittings are loose

Damaged pump

The check valve during suction can be

dry after long periods of non-use.

SOLUTION

Fill the reservoir* and bleed the system air

Carefully tighten all the fittings, ensuring that

there are no leaks

Replace the pump

Remove the suction fitting and allow a few drops

of oil fall onto the 90° valvular fitting. During the

first pumping cycles, the suction phase is forced,

making it prolonged compared to the release

phase, thereby allowing the pump to come under

pressure and fill the suction hose faster.