HYDAC FILTER SYSTEMS OFU-ATEX Manual

OFU-ATEX
Pump-transfer unit
II 2G IIC T1
Operating and maintenance instructions
English (translation of original instructions)
Document No.: 3838730

Imprint
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Imprint
Publisher and responsible for the content:
HYDAC FILTER SYSTEMS GMBH
Postfach 1251
66273 Sulzbach / Saarland
Germany
Telephone: [phone]
Fax: [phone]
E-Mail: [email protected]
Homepage: www.hydac.com
Court of Registration: Saarbrücken, HRB 17216
Executive director: Mathias Dieter,
Dipl.Kfm. Wolfgang Haering
Documentation Representative
Mr. Günter Harge
c/o HYDAC International GmbH, Industriegebiet, 66280 Sulzbach / Saar
Telephone: ++49 (0)6897 509 1511
Fax: ++49 (0)6897 509 1394
E-Mail: [email protected]
© HYDAC FILTER SYSTEMS GMBH
All rights reserved. No part of this work may be reproduced in any form (print,
photocopy or by other means) or processed, duplicated or distributed using
electronic systems without the written consent of the publisher.
These documents have been created and inspected with the greatest care.
However, errors cannot be ruled out completely.
All details are subject to technical modifications. Technical specifications are
subject to change without notice.

Contents
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Contents
Imprint............................................................................................................2
Documentation Representative ...................................................................2
Contents ........................................................................................................3
Preface...........................................................................................................5
Technical Support........................................................................................6
Modifications to the Product ........................................................................6
Warranty ......................................................................................................6
Using the Documentation ............................................................................7
Safety information and instructions............................................................8
Hazard symbols...........................................................................................8
Signal words and their meaning in the safety information and
instructions ................................................................................................10
Structure of the safety information and instructions...................................11
Observe regulatory information .................................................................11
Proper/Designated Use .............................................................................12
Improper Use or Use Deviating from Intended Use ...................................14
Qualifications of personnel / target group ..................................................15
Wear suitable clothing ...............................................................................17
Unpacking the unit......................................................................................17
Transporting the unit..................................................................................18
Storing the unit ...........................................................................................20
Checking the scope of delivery .................................................................21
Technical Description.................................................................................22
Explosion protection as per ATEX 95 ........................................................22
Unit components........................................................................................23
Operating elements/Display elements .......................................................25
Unit dimensions .........................................................................................26
Hydraulic diagram......................................................................................27
Unit setup/connection ................................................................................28
Hanging/connecting the suction hose ........................................................29
Hanging/connecting the pressure hose .....................................................29
Unit electrical connection...........................................................................30

Contents
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Checking direction of rotation ....................................................................32
Switching on the unit..................................................................................33
Starting up the unit .....................................................................................34
Inserting the filter element .........................................................................34
Pre-filling the pump....................................................................................34
Venting the filter housing ...........................................................................34
Clogging indicator......................................................................................35
Performing maintenance............................................................................36
Maintenance Intervals................................................................................37
Changing the filter element........................................................................37
Cleaning/replacing suction strainer............................................................41
Disposing of the unit ..................................................................................43
Taking the unit out of operation ................................................................43
Errors and Troubleshooting.......................................................................43
Spare Parts..................................................................................................44
Spare Parts List .........................................................................................48
Contact/Service...........................................................................................49
Technical Data.............................................................................................50
Model Code..................................................................................................51
EC declaration of conformity.....................................................................52
Index ............................................................................................................53

Preface
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Preface
For you as the owner of a product manufactured by us, we have produced
this manual, comprising the most important instructions for its operation and
maintenance.
It will acquaint you with the product and assist you in obtaining maximum
benefit in the applications for which it is designed.
Keep this documentation in the vicinity of the product for immediate
reference.
Note that the information on the unit's engineering contained in the
documentation was that available at the time of publication.There may be
deviations in technical details, figures, and dimensions as a result.
If you discover errors while reading the documentation or have additional
comments or suggestions, contact us at:
HYDAC FILTER SYSTEMS GMBH
Technische Dokumentation
Postfach 12 51
66273 Sulzbach / Saar
Germany

Preface
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Technical Support
Contact our technical sales department if you have any questions on our
product. When contacting us, please always include the model/type
designation, serial no. and part-no. of the product:
Fax: [phone] - 846
E-Mail: [email protected]
Modifications to the Product
We would like to point out that changes to the product (e.g. purchasing
options, etc.) may result in the information in the operating instructions no
longer being completely accurate or sufficient.
When making modifications or performing repair work to components
affecting the safety of the product, the product may not be put back into
operation until it has been examined and released by a HYDAC
representative.
Please notify us immediately of any modifications made to the product
whether by you or a third party.
Warranty
For the warranty provided by us, please refer to the General Terms of Sale
and Delivery of HYDAC Filter Systems GmbH.
You will find these under www.hydac.com -> General terms and conditions.

Preface
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Using the Documentation
Note that the method described for locating specific information
does not release you from your responsibility of carefully reading
these instructions prior to starting the unit up for the first time and
at regular intervals in the future.
What do I want to know?
I determine which topic I am looking for.
WHERE can I find the information I’m looking for?
The documentation has a table of contents at the beginning. There, I
select the chapter I'm looking for and the corresponding page number.
The documentation number with its index enables you to order another copy
of the operating and maintenance instructions. The index is incremented
every time the manual is revised or changed.
Chapter description
Page number
Edition date
Document language
Documentation no.
with index/
file name

Safety information and instructions
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Safety information and instructions
The unit was built according to the statutory provisions valid at the time of
delivery and satisfies current safety requirements.
Any residual hazards are indicated by safety information and instructions and
are described in the operating instructions.
Observe all safety and warning instructions attached to the unit. They must
always be complete and legible.
Do not operate the unit unless all the safety devices are present.
Secure the hazardous areas which may arise between the unit and other
equipment.
Maintain the unit inspection intervals prescribed by law.
Document the results in an inspection certificate and keep it until the next
inspection.
Hazard symbols
These symbols are listed for all safety information and instructions in these
operating instructions which indicate particular hazards to persons, property
or the environment.
Observe these instructions and act with particular caution in such cases.
Pass all safety information and instructions on to other users.
General hazard
Danger due to electrical voltage / current
Exposed electrical components
Danger of electrical shock
Danger due to operating pressure

Safety information and instructions
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Risk of burns due to hot surfaces
Substances that are health hazards or irritants
Danger from explosive atmosphere
Risk of explosion
Explosion protection symbol

Safety information and instructions
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Signal words and their meaning in the safety information and
instructions
DANGER
DANGER indicates a danger with a high risk and which will lead to death or
serious injury if not avoided.
WARNING
WARNING indicates a danger with a medium risk and which can lead to
death or serious injury if not avoided.
CAUTION
CAUTION indicates a danger with a low risk and which can lead to minor
injury if not avoided.
NOTICE
NOTICE indicates a danger which will lead to damage to property if not
avoided.

Safety information and instructions
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Structure of the safety information and instructions
All warning instructions in this manual are highlighted with pictograms and
signal words. The pictogram and the signal word indicate the severity of the
danger.
Warning instructions listed before an activity are laid out as follows:
SIGNAL WORD
Type and source of danger
Consequence of the danger
HAZARD SYMBOL
►Measures to avert danger
Observe regulatory information
Observe the following regulatory information and guidelines:
Legal and local regulations for accident prevention
Legal and local regulations for environmental protection
Country-specific regulations, organization-specific regulations

Safety information and instructions
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Proper/Designated Use
Use the unit only for the application described in the following.
The OFU is a mobile filter unit for simultaneously transferring and filtering
hydraulic and lubrication oils.
DANGER
Wrong area of utilization
Risk of explosion/Danger of fatal injury
►Only operate the unit in the indicated
equipment group, equipment category, and
zone.
►Maximum permissible surface temperature
on components of the unit must not exceed
135°C/275°F.
WARNING
Fire hazard
Danger of bodily injury
►With the unit, you may filter/pump only
media/fluids with a flash point ( 56°C/133°F
NOTICE
Impermissible operating media
The filtration unit will be destroyed.
►The unit is only to be used with mineral oils or mineral oil-based
raffinates.
►Do not filter any caustic or explosive media.

Safety information and instructions
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When work is done in explosion-prone areas, the safety of persons
and equipment depends on the observance of all relevant safety regulations.
The installation and maintenance personnel thus carries particular
responsibility. Exact knowledge of the applicable regulations and conditions
is required.
Please note:
Observe the characteristic values and measurement operating conditions
of the type labels and data plates.
Damage to the unit and/or the components nullifies the explosion
protection.
The unit must only be operated when the control cabinet is completely
closed.
Conversions and modifications to the devices and/or components are not
permitted.
Are the following specifications on the type label of the unit
permissible in connection with use in areas posing an
explosion hazard on site?
- equipment group
- equipment category
- explosion hazard subgroup
- temperature class
Ensure that vapors, gases or mists occurring at the place of
operation belong to explosion groups IIA to IIC.
Is it ensured that during installation of the unit no potentially
explosive atmosphere, oils, acids, gases, vapors or radiation
are present?
Is it ensured that the unit is sufficiently ventilated and no
external heat input is present?
The cooling air must not exceed a temperature of
40°C/104°F.
Proper or designated use of the product extends to the following:
observing all instructions contained in the instruction manual.
performing inspection and maintenance work.

Safety information and instructions
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Improper Use or Use Deviating from Intended Use
DANGER
Wrong area of utilization
Danger of fatal injury
►Only operate the unit in the indicated
equipment group, equipment category, and
zone.
►Maximum permissible surface temperature
on components of the unit must not exceed
135°C/275°F.
Any use extending beyond or deviating therefrom shall not be considered
intended use. HYDAC Filter Systems GmbH will assume no liability for any
damage resulting from such use. The user alone, shall assume any and all
associated risk
Improper use may result in hazards and/or will damage the unit. Examples of
improper use:
Operation in a potentially explosive atmosphere other than the intended
one.
Operation with a non-approved medium.
Operation under non-approved operational conditions.
Modifications to the power unit made by the user or purchaser.
Inadequate monitoring of parts that are subject to wear and tear
Improperly performed repair work.

Safety information and instructions
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Qualifications of personnel / target group
Persons who work on the unit must be aware of the associated hazards
when using it.
Auxiliary and specialist personnel must have read and understood the
operating instructions, in particular the safety information and instructions,
and applicable regulations before beginning work.
The operating instructions and applicable regulations are to kept so they are
accessible for operating and specialist personnel.
These operating instructions is intended for:
Auxiliary personnel: such persons have been instructed in power unit
operation and are aware of potential hazards due to improper use.
Specialist personnel: such persons with corresponding specialist training and
several years work experience. They are able to assess and perform the
work assigned to them, they are also able to recognize potential hazards.
Activity Person Knowledge
Transport / storage Forwarding
agent
Specialist
personnel
Proof of knowledge of cargo
securing instructions
Safe handling/operation of
hoisting and lifting equipment
Hydraulic / electrical
installation,
first commissioning,
operation/settings
maintenance,
troubleshooting,
repair,
decommissioning,
disassembly
Specialist
personnel
Safe handling/use of tools
Fitting and connection of
hydraulic lines and
connections
Fitting and connection of
electrical lines, electrical
machinery, sockets, etc.
Checking the phase
sequence
Product-specific knowledge

Safety information and instructions
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Operation,
operations control
Specialist
personnel
Product-specific knowledge
Knowledge about how to
handle operating media
Disposal Specialist
personnel
Proper and environmentally-
friendly disposal of materials
and substances
Decontamination of
contaminants
Knowledge about reuse

Unpacking the unit
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Wear suitable clothing
Loose-fitting clothing increases the risk of being caught or being drawn in on
rotating parts, and the risk of getting caught on protruding parts. You can be
severely injured or killed.
Wear close-fitting clothing.
Do not wear any rings, chains or any other jewelry.
Wear work safety shoes.
Unpacking the unit
Before delivery, the unit is inspected for leaks and proper functioning at the
factory, then carefully packed for shipment.
When receiving and unpacking the unit check it for damage in transit.
Dispose of the packaging material in an environmentally friendly manner.

Transporting the unit
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Transporting the unit
NOTICE
Using components for pushing/pulling
The unit will be damaged
►Never use the components to push or pull the unit.
►Use only the handles provided for moving.

Transporting the unit
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NOTICE
Unsuitable lifting accessories
The unit/components will be damaged/destroyed
►Use only suitable lifting accessories to raise or lash the unit.
►Take care to ensure that the lifting accessories do not cause any
pressures to be brought to bear against the components on the unit.

Storing the unit
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Storing the unit
Make sure to store the unit in a clean, dry place on rollers/wheels. Engage
the hand brake on both casters.
Storage temperature: 10 … 40°C
Relative humidity: max. 95%, non-condensing