DROPSA 3414100 Manuale utente

Hydraulic pump

Hydraulically controlled pump for oil

Operation and maintenance manual

Original instructions

DropsA products can be purchased at DropsA branches and authorised distributors,

go to www.dropsa.com/contact or write to [email protected]

C2305IE - WK 23/19

Index

1. INTRODUCTION____________________________ 3

2. GENERAL INFORMATION____________________ 3

2.1. Features and Benefits ___________________ 3

3. Product Identification_______________________ 4

4. Technical Specifications ___________________ 5

4.1 Hydraulic system________________________ 6

5. Components ______________________________ 6

6. Unpacking and Installation __________________ 7

6.1 Unpacking _____________________________ 7

6.2 Installation of the Pump __________________ 7

6.3 Hydraulic Connections ___________________ 7

7. Instructions for use_________________________ 8

7.1. Measures to be taken prior to start-up______ 8

7.2. Lubricant Filling ________________________ 9

7.3. Flow capacity adjustment _______________ 10

8. Problems and Solutions ____________________ 11

9. Maintenance Procedures ___________________ 11

9.1 Scheduled Maintenance _________________ 12

3.3. Warning of Residual Risks ______________ 12

10. Disposal ________________________________ 12

11. Ordering Information _____________________ 12

12. Dimensions______________________________ 13

13. Handling and Transport____________________ 14

14. Precautions for Use _______________________ 14

14.1. Lubricants ___________________________ 14

15. Contraindications of Use __________________ 15

1. INTRODUCTION

DROPSAS.P.A.- Allrights reserved

This operation and maintenance manual refers to the hydraulic pump and contains important

information for the health and safety protection of the personnel who use this equipment.

The most recent version can be obtained by requesting it from the Sales Technical Office or online

at http://www.dropsa.com.

This manual must be read carefully and kept so that it is always available to the operators who

want to consult it.

2. GENERAL INFORMATION

2.1. Features and Benefits

The pump can be used on machinery in the agricultural sector.

The hydraulic cartridge pump is a pump with a piston driven by hydraulic oil with spring

return.

The pump can house 400 cc cartridges.

The pump has a flow rate adjustment.

3. Product Identification

A label is located on the pump reservoir that indicates the product part number,

the power supply voltages and the basic features.

4. Technical Specifications

GENERAL TECHNICAL SPECIFICATIONS

Pumping system

Type

Piston

Flow rate

cm3/stroke

[in3/rev]

0.2 ~ 2 see diagram (Fig. 1)

[0.012 ~ 0.12]

Operating pressure

See diagram (Fig. 2)

Hydraulic pressure

bar [psi]

100~300 [1450~4351]

Hydraulic connection

Type

G1/4"

Lubricant outlet connection

Type

G1/4"

Operating Temperature

°C [°F]

-10 ÷ +70 [-14 ÷ +158]

Storage temperature

°C [°F]

-30 ÷ +90 [-22 ÷ +194]

Net weight

Kg [lb]

7 [15.4]

Relative humidity

Cartridge capacity

g [lb]

400 [0.88]

Drive fluid

Hydraulic oil

Lubricant

NLGI

Grease 000 ~ 2

Fig. 1 Fig. 2

* NOTE: The indicated flow rate value refers to the following test conditions: grease with NLGI 2

consistency class, standard environmental conditions (Temperature 20°C [68°F], pressure 1bar [14.5psi]).

4.1 Hydraulic system

The hydraulic diagram is below:

5. Components

In the following, the main components are indicated that make up the pump in the various

versions, accessories and related options.

STANDARD PUMP COMPONENTS

Piston

Lubricant filling and bleeding

Adjustment screw and lubricant outlet

Hydraulic oil bleeding

Hydraulic connection

Lubricant cartridge housing

6. Unpacking and Installation

6.1 Unpacking

Once you have identified the place suitable for installation, open the packaging, remove the pump

and check to ensure that it has not suffered any damage during transportation and storage. The

packing material does not require special disposal precautions as it is in no way dangerous or

pollutant. For disposal, refer to local regulations.

6.2 Installation of the Pump

Place the pump and fasten it to its support by using the appropriate Ø9 mm holes (0.354 in),

with 2 suitable screws.

Assemble the pump in such a way that the cartridge housing and the bleed valve are easily

accessible.

Leave at least 100 mm (3.94 in) as a perimeter distance with respect to other equipment or

barriers to prevent access to the pump.

Assemble the pump at “labourer height” in order to prevent abnormal posture or possible

impact.

Do not install the pump submerged in liquids and/or in aggressive environments.

Do not install the pump in environments where there are explosive or flammable mixtures.

Do not install the pump near heat sources.

Verify that the grease used is fit for operating temperatures, especially at temperatures

below 0° C. If in doubt, contact our Sales Technical Office for the correct choice of

lubricant.

6.3 Hydraulic Connections

The connection with the hydraulic oil is marked with “A” and its size is G1/4”. The connection with

the lubricant outlet is marked with “B” and its size is G1/4”.

7. Instructions for use

7.1. Measures to be taken prior to start-up

The unit may be put into operation by specialized personnel.

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.

Use gloves and eye protection as required by the lubricant safety data sheet.

DO NOT use lubricants that are aggressive to NBR gaskets. If you are unsure, contact the

Dropsa S.p.A technical office for a detailed list of recommended lubricants.

Never ignore health hazards and always follow sanitary regulations.

Always use suitable piping for the operating pressure.

Check the integrity of the pump.

Ensure that the pump operates at operating temperature and that the pipelines are free of any

air bubbles.

To determine the maximum operating pressure, it is necessary to know the pressure drop of the

pipeline connected to the pump outlet, depending on the length, temperature and type of

lubricant.

Depending on these variables to achieve a proper supply to the delivery point, you must always

ensure that the pipeline pressure loss plus the pressure required at the lubrication point does not

exceed the maximum pressure supplied for pump delivery.

7.2. Lubricant Filling

The pump is supplied without a cartridge and completely empty. The reservoir can house 400 cc

cartridges.

To fill it, you must proceed as follows:

Cartridge Pump

Step1:

Unscrew the reservoir

from the base

Step2:

pull the reservoir rod

upward

Step3:

Remove the cartridge cap

Step4:

Insert the cartridge in the

reservoir

Step5:

Remove the cartridge tear

cap

Step6:

Screw the cartridge onto

the pump all the way,

tightening it moderately

Step7:

Press the tab on the upper

part of the reservoir and put

the rod back in

7.3. Flow capacity adjustment

For the adjustment of the flow rate, you must proceed as follows:

Unscrew the locking nut

Tighten or loosen the adjustment screw to achieve the desired flow rate (see diagram below).

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