vacuubrand RE 2.5 User manual

Instructions for repair
OI no.: 20901567Original instructions EN
RE 2.5
RZ 2.5
RE 6
RZ 6
  

Manufacturer:
VACUUBRANDGMBH+CO KGVACUUBRANDGMBH+CO KG
Alfred‑Zippe‑Str.4Alfred‑Zippe‑Str.4
97877Wertheim97877Wertheim
GERMANYGERMANY
Phone:
Head oice +499342808‑0
Sales +499342808‑5550
Service +499342 808‑5660
Fax: +499342808‑5555
Email: [e-mail]
Web: www.vacuubrand.com
2 IA_EN_RE_RZ_2.5_6_V1_251023
Original instructions
Keep for further use!
This manual is only to be used and distributed in its complete and original form. It is strictly the user’s responsibility to
carefully check the validity of this manual with respect to the product.
Thank you for purchasing this product from VACUUBRAND GMBH + CO KGVACUUBRAND GMBH + CO KG. You have chosen a modern and
technically high quality product.
Imprint

Contents
3IA_EN_RE_RZ_2.5_6_V1_251023
CONTENT
1 Introduction 5
1.1 User information........................................ 5
1.2 About this document .................................... 6
1.2.1 Symbols and icons .................................... 6
1.2.2 Display conventions ................................... 7
2 Safety instructions 8
2.1 Target groups........................................... 8
2.2 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2.1 Personal responsibility ................................ 9
2.2.2 Eliminate sources of danger ............................ 9
2.3 Environmental protection............................... 10
3 Notes concerning repair 11
3.1 General notes .........................................12
3.2 Prior to maintenance and repair ......................... 13
3.3 Aer maintenance and repair............................ 13
3.4 Cleaning the components............................... 14
3.5 Notes on pressing in sha seals.......................... 14
4 Maintenance 15
4.1 Tools ................................................. 16
4.2 Replacing the removable sleeve ......................... 17
4.3 Maintenance RE 2.5 and RE 6 ............................25
4.4 Maintenance RZ 2.5 and RZ 6 ............................48
5 Press-in mandrels 74
5.1 Selection of the press‑in mandrel........................ 74
5.2 Mandrel 4 ............................................. 75
5.3 Mandrel 7 ............................................. 76
6 Exploded drawing RE 2.5 / RE 6 77
7 Exploded drawing RZ 2.5 / RZ 6 78
8 Spare parts list 79
9 Service 80

4 IA_EN_RE_RZ_2.5_6_V1_251023

5
Introduction
IA_EN_RE_RZ_2.5_6_V1_251023
1 Introduction
Make yourself familiar with the device.
Use this manual as reference for the repair of your device.
1.1 User information
Safety
Read this manual thoroughly and completely before starting repair.
Keep this manual in an easily accessible location.
Observe all safety instructions provided also in the instructions for
use of the device and in the document “Safety instructions for vac‑
uum equipment”! The document ”Safety information for vacuum
equipment ‑ Sicherheitshinweise für Vakuumgeräte” is part of the
instructions for use!
In addition to this manual, adhere to any relevant local accident pre‑
vention regulations and comply with industrial safety regulations.
General
The illustrations in this manual are provided as examples. They are
intended to aid in your understanding.
VACUUBRAND GMBH + CO KG reserves the right to modify or
change the product design and/or technical specifications at any
time without advanced notice.
Copyright
The content of these instructions is protected by copyright. Only cop‑
ies for internal use are allowed, e.g., for professional training.
©VACUUBRANDGMBH+COKG
General
information
Instructions for use
and safety
Copyright ©

6
Introduction
IA_EN_RE_RZ_2.5_6_V1_251023
Contact
Please ask for replacement in case of incomplete instructions for
use. Alternatively, you can download instructions for use on our
web page: www.vacuubrand.com.
Contact us regarding any questions about this product, if you need
further information, or to provide us with feedback.
When contacting our Customer Service Department, please be sure
to have the data from the rating plate.
1.2 About this document
1.2.1 Symbols and icons
Warning symbol.
Refers to content of other documents.
Additional notes
IMPORTANT! Information or specific use recommendation,
which must be observed.
Contact us
Safety symbols
Additional icons
Convention for
additional notes > Helpful tips
> Additional information

7
Introduction
IA_EN_RE_RZ_2.5_6_V1_251023
Convention for
warnings
1.2.2 Display conventions
Warning levels
DANGERDANGER
Indicates an imminent hazardous situation.
Disregarding the situation will result in serious and even
fatal injury or death.
> Take appropriate action to avoid dangerous situation!
WARNING
Indicates a potentially hazardous situation.
Disregarding the situation could result in serious, even fatal
injury or massive damage to property.
> Observe instruction to avoid dangerous situation!
CAUTION
Indicates a potentially hazardous situation.
Disregarding the situation could result in slight or minor
injury or damage to property.
> Observe instruction to avoid dangerous situation!
Individual step (single step)
>Do the described step.
5Result of action.
Multiple steps
1. First step,
2. next step.
5Result of action.
Follow steps in the described order.
Design of steps
Graphic

8
Safety instructions
IA_EN_RE_RZ_2.5_6_V1_251023
2 Safety instructions
All safety instructions must be observed by all individuals working
with the products described here.
Maintenance and repair are intended to ensure the functional condi‑
tion or the return to function in the event of a failure.
Repair includes troubleshooting and remedy.
2.1 Target groups
Maintenance and repair may only be carried out by suitable qualified
personnel.
The qualified personnel has to carry out the necessary work in accor‑
dance with the statutory requirements ( e.g., safety at work, environ‑
mental protection).
The function and safety of the device must not be impaired.
The qualified personnel must be adequately informed of the risk in‑
volved in their intervention.
The qualified personnel must be adequately informed of potentially
hazardous substances in the device.
2.2 Safety precautions
Products of VACUUBRANDGMBH+CO KG are subject to high quality
tests with goals for safety and operation. Prior to delivery each pro‑
duct has been tested thoroughly.
Nevertheless, during operation unforeseen dangerous situations may
occur which may lead to injuries or damage of property. Therefore
observe the following chapter and take the appropriate safety pre‑
cautions.
Qualified
personnel
Quality standards
and safety

9
Safety instructions
IA_EN_RE_RZ_2.5_6_V1_251023
2.2.1 Personal responsibility
Ensure that only authorized and skilled personnel works with the
equipment. This is particularly important with regard to trouble‑
shooting and remedy.
>Carefully read these instructions for repair before starting work.
>Replace wear parts regularly.
>Never operate a defective or damaged device.
>Personal safety has top priority!
>Always be conscious of safety.
>Observe the owners‘ directives at work, the national accident pre‑
vention regulations and occupational safety provisions.
2.2.2 Eliminate sources of danger
Only use the vacuum system when it is in proper working
condition.
>Carry out maintenance and repair outside the hazardous area,
i.e., outside potential explosive atmospheres.
The owner must determine additional protective measures to ensure
safe personal protection if work has to carry out inside a hazardous
area.
>Observe the operating instructions of the owner.
>Switch o the device prior to maintenance and repair.
>Secure the device against restarting.
Parts may carry dangerous voltages for some minutes even when the
device is switched o.
To avoid fatal injuries to not carry out any work during this period.
>Mark activities at the device appropriately, e. g. using a instruc‑
tion plate. Ensure that the instruction plate is available also dur‑
ing temporary interruption.
>Aerwards restore the protective equipment immediately, if you
have deactivated safety functions and protective equipment due
to maintenance or repair work.
>Replace defective components by new components with the
same order number or by equivalent components.
>Prevent the entry of liquids or dust in the device.
Dangerous voltage
Qualification and
personal
responsibility
Safe work
Use only in proper
working condition

10
Safety instructions
IA_EN_RE_RZ_2.5_6_V1_251023
The device may be contaminated with substances dangerous to
health or otherwise dangerous substances.
>Decontaminate or clean the device prior to maintenance or repair,
if necessary.
>Observe safety and protective measures when working with
hazardous substances.
>Ask regularly for actual material safety data sheets.
>Observe the owners´hazardous substances operating instruc‑
tions.
>Wear your personal protective equipment.
2.3 Environmental protection
Observe the national and international environmental regulations for
disposal of your product as well as spare parts. This is especially valid
for all components that are contaminated with hazardous substances.
Dispose of chemicals, e. g., cleaning agent, according to regulations.
Scrapping and waste disposal
As a result of increased environmental awareness and more stringent
general requirements imposed by environmental legislation a proper
scrapping and disposal of no longer usable or non‑reparable equip‑
ment is required.
If you wish to dispose of a VACUUBRAND electrical or electronic de‑
vice, this must be done separately from unsorted municipal waste.
This is indicated by the symbol of the crossed‑out wheelie bin (see
illustration).
VACUUBRAND oers to dispose of your device with this symbol for
you.
To do this, please contact our service team.
Please note the data privacy rules and delete all data on the device.
[e-mail]
Tel.: [phone]
Health hazards
Proper disposal
Observe environ‑
mental regulation

11
Notes concerning repair
IA_EN_RE_RZ_2.5_6_V1_251023
3 Notes concerning repair
IMPORTANT! Replace defective parts in any case.
WARNING
Risk of injury due to a disassembled device.
Operating a disassembled device may lead to personal
injury.
> Never operated a opened or disassembled device.
> Ensure that a disassembled device never starts
unintentionally.
WARNING
Damage due to an overaged motor capacitor.
If an old motor capacitor fails, the capacitor may get hot. It
may even melt or emit a flame,
> Check every capacitor regularly by measuring its
capacity and estimating its operation time. Exchange old
capacitors early enough to prevent a failure.
> The capacitors have to be replaced by a qualified
electrician.
CAUTION
Damage due to defective wear parts.
Defective wear parts may lead to failure of the device.
> Wear parts have to be replaced in time.
DANGERDANGER
Danger of electric shock.
Improperly executed repairs will result in an electrical
shock.
> Check the electrical safety of the device according to IEC
61010 and national regulations aer repair.
> Check the protective conductor resistance.
> Check the insulation resistance.
> Carry out a high voltage test.
> Check the leakage current according to DIN EN
50678:2021 (EN 50678:2020) and national regulations.

12
Notes concerning repair
IA_EN_RE_RZ_2.5_6_V1_251023
3.1 General notes
>Comply with all relevant laws and regulations for the handling,
storage and disposal of oils.
>Use only oil of the recommended type. Other oils or operating flu‑
ids may damage the pump or cause hazards.
>Prevent oil from entering sewers or bodies of water.
>Do not spill oil. Clean up spilled oil immediately. Spilled oil means
danger of slipping!
>Prevent the release of hazardous, toxic, explosive, corrosive,
harmful or environmentally hazardous fluids, gases or vapors as
well as oil vapors, e.g. by using suitable laboratory equipment
with fume hood and ventilation control.
>Ensure that the installation site of the vacuum pump is well venti‑
lated.
>Do not breathe in oil vapors.
>Use your personal protective equipment when working with
pump oils to avoid skin contact and possible irritation.
>Wet all sliding surfaces with the vacuum pump oil you are using to
operate the pump before reassembly.
>Use new sealing rings / O‑rings.
>Stretch new O‑rings before insertion for better fit if necessary.
Oils
Sealing rings

13
Notes concerning repair
IA_EN_RE_RZ_2.5_6_V1_251023
Separate from
mains
Testing
Genuine spare parts
3.2 Prior to maintenance and repair
Preparation
>Use only genuine spare parts and accessories.
When using components of other manufacturers the safety and per‑
formance of the equipment as well as the electromagnetic compat‑
ibility of the equipment might be reduced.
Possibly the CE mark or the C/US conformity (see rating plate) be‑
comes void if not using genuine spare parts.
>Check that the required tools and parts are available and of the
correct type before you start your work.
>Check the operating sequence mentally on feasibility, safety
requirements and consequences on safety and function of the
equipment using the exploded drawing, spare parts lists and, if
necessary, the electrical circuit diagrams.
>Separate the device from mains prior to maintenance or repair.
Switch o the device and unplug.
>Vent the device.
>Allow the device to cool down.
>Allow the capacitors to discharge.
3.3 Aer maintenance and repair
Testing
Check operability and safety aer maintenance and repair.
>Check the electrical safety according to IEC 61010 and national
regulations aer maintenance and repair.
>Check the leakage current according to DIN EN 50678:2021 (EN
50678:2020) and national regulations.
In case of problems return the device to the factory for
inspection or repair if necessary.
> Observe section „Return“.

14
Notes concerning repair
IA_EN_RE_RZ_2.5_6_V1_251023
3.4 Cleaning the components
>Dispose of used oil and solvents, taking into account any conta‑
mination from pumped‑o substances / chemicals, in accordance
with the relevant regulations.
>Avoid damage to running and sealing surfaces.
>Use clean oil and a lint‑free cloth to clean sealing rings. Replace
defective sealing rings.
>Check the silencer nozzle for dirt. Clean a dirty noise damping
nozzle with a wire (diameter 0.2 mm).
>Use benzine or technical solvent to clean all other parts. Observe
the regulations for handling solvents.
>Dry all parts aer cleaning.
3.5 Notes on pressing in sha seals
>Sha seals should only be fitted using a special press‑fit mandrel.
>When pressing in, pressure must only be applied to the outer ring
of the sha seal.
>When pressing in rotary sha seals using a press‑in mandrel, care
must be taken to ensure that the mandrel can exit unhindered on
the underside of the seal ring.

15
Maintenance
IA_EN_RE_RZ_2.5_6_V1_251023
4 Maintenance
In the event of oil leakage from the pump (oil dripping from the
bottom of the housing), it is oen suicient to replace only the
replacement sleeve or the oil reservoir seal. The pump oil does
not have to be drained for this.
Dismantle the separator and the exhaust filter, if present,
before servicing.
During maintenance, all seals / O‑rings should always be
replaced.
Maintenance kit RE/RZ 2.5 and RE/RZ 6: 20648977

16
Maintenance
IA_EN_RE_RZ_2.5_6_V1_251023
4.1 Tools
Tool kit 22612186
Puller sleeve for coupling
Press‑in mandrel 3 for sha seal
Press‑in mandrel 4 for sha seal
Press‑in mandrel 7 for sha seal
Puller for coupling with cap screws and wing
screw
Screwdriver M4 negative
Screwdriver M5 negative
>The tool set contains parts which are not
required in individual cases.
Tools
Hexagon socket SW 3/4/5
Open‑end wrench SW 14
Phillips screwdriver size 2
Screwdriver with flat blade size 1/2
Needle nose pliers
Puller for coupling
Ring wrench (for puller)

17
Maintenance
IA_EN_RE_RZ_2.5_6_V1_251023
2. Place the pump on the oil reservoir (on the
rating plate).
3. Unscrew the suction felt cover.
1. Close the pump outlet.
4. Replace the suction felt if it is soaked with oil.
4.2 Replacing the removable sleeve

18
Maintenance
IA_EN_RE_RZ_2.5_6_V1_251023
5. Unscrew the fan cover.
6. Li the fan cover by tilting it sideways over
the fan wheel.
>Avoid damaging the fan wheel.
7. Loosen the screws.
8. Pull out the screws.

19
Maintenance
IA_EN_RE_RZ_2.5_6_V1_251023
9. Li the motor out of the housing.
10. Lay the motor down as shown.
>Avoid pulling the rotor out of the stator pack.
11. Check the coupling for run‑in marks (“finger‑
nail test”).
>Replace the coupling if indentations can be
detected, see section “Maintenance”.
12. Li the protective wall out of the housing.

20
Maintenance
IA_EN_RE_RZ_2.5_6_V1_251023
13. Unscrew the removeable sleeve.
14. Li out the removeable sleeve.
15. Place a new O‑ring around the new remove‑
able sleeve.
16. Fill the space in front of the removeable slee‑
ve with the vacuum pump oil with which you
operate the pump.