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Documents are only to be used and distributed completely and unchanged. It is strictly the users’ responsibility to check carefully 

the validity of this document with respect to his product. Manual-no.: 999155 / 29/01/2009

page 29 of 36

Repair - return  - DKD calibration

Safety and health of our staff, laws and regulations regarding the handling of dan-

gerous goods, occupational health and safety regulations and regulations regarding 

safe disposal of waste require that for all pumps and other products the 

“Health 

and safety clearance form“

 must be send to our office duly completed and signed 

before any equipment is dispatched to our premises.

Fax or post a completed copy of the health and safety clearance form to us in ad-

vance. The declaration must arrive before the equipment. Enclose a second com-

pleted copy with the product. If the equipment is contaminated you must notify the 

carrier.

No repair / DKD calibration is possible unless the correctly completed form is 

returned. Inevitably, there will be a delay in processing the equipment if infor

-

mation is missing or if this procedure is not obeyed.

If the product has come in contact with chemicals, radioactive substances or other 

substances dangerous to health or environment, the product must be decontami-

nated 

prior to sending it back to the factory.

-  Return the product to us 

disassembled and cleaned

 and accompanied by a 

certificate verifying decontamination or

-  Contact an industrial cleaning and 

decontamination service

 directly or

-  Authorize  us  to  send  the  product  to  an  industrial  cleaning  facility 

at

 

your  ex-

pense.

To  expedite  repair  and  to  reduce  costs,  please  enclose  a  detailed  description  of 

the problem and the product’s operating conditions with every product returned for 

repair.

We submit

 quotations 

only on request and always at the customer’s expense. If 

an order is given, the costs incurred are offset from the costs for repair or from the 

purchase price, if the customer prefers to buy a new product instead of repairing the 

defective one.

If you do not wish a repair on the basis of our quotation, the equipment 

might be returned to you disassembled and at your charge!

In many cases, the 

components must be cleaned in the factory

 prior to repair.

For cleaning we use an environmentally responsible water based process. Unfor-

tunately  the  combined  attack  of  elevated  temperature,  cleaning  agent,  ultrasonic 

treatment and mechanical stress (from pressurised water) may result in damage to 

the paint. Please mark in the health and safety clearance form if you wish a 

repaint 

at your expense

 just in case such a damage should occur.

We also replace parts due to optical aspects upon your request.

Before returning

 the equipment ensure that (if applicable):

-  Equipment has been cleaned and/or decontaminated.

-  All inlet and outlet ports have been sealed.

-  Equipment has been properly packed, if necessary, please order an original pack-

aging (costs will be charged), marked as appropriate and the carrier has been 

notified.

-  Ensure that the completed health and safety declaration is enclosed.

We hope for your understanding for these measures, which are beyond our control.

Scrapping and waste disposal:

Dispose of the equipment and any components removed from it safely in accordance 

with all local and national safety and environmental requirements. Particular care 

must be taken with components and waste oil which have been contaminated with 

dangerous substances from the process. Do not incinerate fluoroelastomer seals 

and O-rings.

-  You may authorize us to dispose of the equipment 

at

 

your expense.

Notes on return to the factory

NOTICE

NOTICE

Summary of Contents for ME 4 NT

Page 1: ...the users responsibility to check carefully the validity of this document with respect to his product Manual no 999155 29 01 2009 page 1 of 36 Diaphragm pumps Instructions for use Technology for Vacuu...

Page 2: ...CUUBRAND diaphragm pumps are the result of many years of experience in design and construction and practical operation of these pumps combined with the latest developments in material and manu facturi...

Page 3: ...rom mains before removing the cover NOTICE Contents Safety information 4 General information 4 Intended use 4 Setting up and installing the equipment 4 Ambient conditions 5 Operating conditions 5 Safe...

Page 4: ...mperatures during operation between 10 C and 40 C Check the maximum temperatures if installing the pump in a cabinet or a housing and make sure ventilation is adequate Install an external automatic ve...

Page 5: ...bient parts e g housing walls Check fan regularly for dust dirt clean if necessary to avoid a cutback of ventilation If the equipment is brought from cold environment into a room for operation allow t...

Page 6: ...install an appropriate collecting and disposal system and take protective action for pump and environment Prevent any part of the human body from coming in contact with vacuum The user must take suita...

Page 7: ...sufficient cooling down Take suitable precautions if an automatic restart of the pump might lead to a critical dan gerous situation The A weighed emission sound pressure level of the pump does not ex...

Page 8: ...nt correctly to vacuum and pressure systems see section Use and operation Use the equipment for the intended use only i e to generate vacuum or to com press gases in vessels designed for that purpose...

Page 9: ...sible ambient temperature storage operation C 10 to 60 10 to 40 Permissible relative atmospheric moisture during operation no condensation 30 to 85 Rated motor power W 180 No load speed 50 60 Hz min 1...

Page 10: ...operation C 10 to 60 10 to 40 Permissible relative atmospheric moisture during operation no condensation 30 to 85 Rated motor power W 250 No load speed 50 60 Hz min 1 1500 1800 Maximum permissible ran...

Page 11: ...ding of manometer bar 3 Maximum pressure difference between inlet and outlet bar 4 Permissible ambient temperature storage operation C 10 to 60 10 to 40 Permissible relative atmospheric moisture durin...

Page 12: ...cover aluminium alloy AlSi12 Diaphragm clamping disc aluminium alloy AlSi12 Diaphragm clamping disc MZ 2S NT ME 8S NT ETFE carbon fibre reinforced Diaphragm FPM Diaphragm MZ 2S NT ME 8S NT ME 4R NT P...

Page 13: ...to his product Manual no 999155 29 01 2009 page 13 of 36 Pump parts ME 4 NT 1 5 3 2 6 Position Component 1 Inlet 2 Outlet 3 On off switch 4 Mains connection 5 Handle 6 Pump rating plate 7 Fan 8 Inlet...

Page 14: ...ely and unchanged It is strictly the users responsibility to check carefully the validity of this document with respect to his product Manual no 999155 29 01 2009 page 14 of 36 MZ 2 NT MZ 2S NT 1 5 3...

Page 15: ...uted completely and unchanged It is strictly the users responsibility to check carefully the validity of this document with respect to his product Manual no 999155 29 01 2009 page 15 of 36 ME 8 NT ME...

Page 16: ...y and unchanged It is strictly the users responsibility to check carefully the validity of this document with respect to his product Manual no 999155 29 01 2009 page 16 of 36 MD 4 NT MV 2 NT fig MD 4...

Page 17: ...con stitutes a potential source of danger take appropriate safety measures Pump with dual voltage motor Check that the voltage changeover switch at the terminal box is positioned correctly Attention...

Page 18: ...mum pressure difference between inlet and outlet ports ME 4R NT For continuous operation at inlet pressures above atmospheric pressure the inlet pressure must not exceed the outlet pressure The maxima...

Page 19: ...e only manually Switch off the pump or isolate the equipment from mains Determine and eliminate the cause of failure Wait approx five minutes before restarting the pump Attention In case of supply vol...

Page 20: ...e 20 of 36 Accessories Non return valve flapper valve 639683 Simultaneous operation of two systems at different pressure levels stainless steel FFKM leak rate 10 3 mbar x l s for pressure differences...

Page 21: ...reset is necessary Switch off pump or unplug mains Pump does not achieve its ultimate vacuum or usual pumping speed Centring ring at small flange connection not correctly posi tioned or leak in the p...

Page 22: ...ble trained and supervised technicians Ensure that the pump cannot be operated accidentally Never operate the pump if covers or other parts of the pump are disassembled Never operate a de fective or d...

Page 23: ...the position of the valves and remove them Replace valves if necessary Use petroleum ether or industrial solvent to remove de posits Do not inhale Cleaning and inspecting the pump heads ME 4 MZ 2 D Us...

Page 24: ...2 O rings not ME 8 NT 3 Valves 4 Head cover 5 Diaphragm clamping disc with square head screw MZ 2D NT with countersunk head screw Pump head parts 6 Countersunk head screw 7 Diaphragm 8 Diaphragm suppo...

Page 25: ...er of washers The pump will not attain ultimate vacuum More washers The clamp ing disc will hit the head cover noise or even blockade and damage of the pump Attention Double diaphragm consisting of tw...

Page 26: ...sure that the valves are correctly seated Valves at the outlet with round centred opening under valve valves at the inlet with kidney shaped opening of the head cover 2 beside valve Only MZ 2D NT Inst...

Page 27: ...ME 8 NT MD 4 NT MV 2 NT Install the connecting tube 1 under the pump between the two housing covers Screw in the socket head screws fixing the housing cover crosswise first slightly then tighten Torqu...

Page 28: ...w the four screws with a Torx screw driver TX20 and remove the terminal box cov er Remove the wire with the blown fuse fixed with flat pin bushes 2 see figure Mount the new wire flat pin bushes and cl...

Page 29: ...onditions with every product returned for repair We submit quotations only on request and always at the customer s expense If an order is given the costs incurred are offset from the costs for repair...

Page 30: ...e returned product that neither toxic corrosive biologically active explosive radio active nor contamination dangerous in any way has occurred the product is free of dangerous substances the oil or re...

Page 31: ...out the agreement of the manufacturer Par la pr sente nous d clarons que le dispositif d sign ci dessus est conforme aux prescriptions de base des directives EU applicables et indiqu s en ci que conce...

Page 32: ...It is strictly the users responsibility to check carefully the validity of this document with respect to his product Manual no 999155 29 01 2009 page 32 of 36 This certificate is only valid for pumps...

Page 33: ...nly to be used and distributed completely and unchanged It is strictly the users responsibility to check carefully the validity of this document with respect to his product Manual no 999155 29 01 2009...

Page 34: ...nly to be used and distributed completely and unchanged It is strictly the users responsibility to check carefully the validity of this document with respect to his product Manual no 999155 29 01 2009...

Page 35: ...nly to be used and distributed completely and unchanged It is strictly the users responsibility to check carefully the validity of this document with respect to his product Manual no 999155 29 01 2009...

Page 36: ...obtained under test conditions for specific applications depend on a number of factors beyond our control It is therefore strictly the users responsibility to very carefully check the validity of app...

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