KNF N 936 Translation Of Original Operating And Installation Instructions
Diaphragm pump
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- Page 1 KNF 320276-320275 09/23 N936 TRANSLATION OF ORIGINAL OPERATING AND INSTALLATION INSTRUCTION ENGLISH DIAPHRAGM PUMP Notice! Before operating the pump and accessories, read and observe the operating and installation instructions as well as the safety information!
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Page 2: Table Of Contents
Index KNF Neuberger GmbH Alter Weg 3 1 About this document ............ 3 79112 Freiburg 1.1 Using the operating and installation instructions.. 3 Germany 1.2 Exclusion of liability........... 3 Tel. +49 (0)7664/5909-0 1.3 Symbols and markings.......... 3 Fax. +49 (0)7664/5909-99 2 Safety ................ 5 2.1 Personnel and target group ........ 5 2.2 Responsibility of the operator ........ 5... -
Page 3: About This Document
à In the event of uncertainties with regard to the content of the operating and installation instructions, please contact the manufacturer (contact data: see www.knf.com). Please have the type and serial number of the pump ready. à Read the operating and installation instructions before you commission the pump. - Page 4 Warning of hot surface Warning of electrical voltage Warning of poisonous substances Warning of hand injuries through crushing Observe the operating instructions General mandatory sign Tab.2 Explanation of pictograms Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23...
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Page 5: Safety
Operating Only operate and install the pump under the operating parameters and op- parameters erating conditions described in Chapters 2.4 Operating conditions and 3 Technical data. Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23... -
Page 6: Working In A Safety Conscious Manner
Make certain that the temperature of the medium is always sufficiently be- low the ignition temperature of the medium so as to prevent ignition or ex- plosion. This also applies for abnormal operating situations. Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23... -
Page 7: Use
Partly completed machinery may not be commissioned until it has been determined that the machine into which the partly completed machin- Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23... -
Page 8: Customer Service And Repair
2.8 Customer service and repair Customer service and repairs The pump is maintenance-free. However, KNF recommends periodic in- spection of the pump for obvious changes in noise or vibration. Only have repairs to the pumps performed by qualified KNF personnel. -
Page 9: Disposal
The end user is responsible for disposing of old devices according to national and international regulations. Alternatively, KNF products (old de- vices) may also be returned to KNF for a fee (see chapter 11 Returns). Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23... -
Page 10: Technical Data
Max. current draw [A] 2.1 @ 50 Hz 1.8 @ 60 Hz Voltage 200 – 240 V Max. current draw [A] 1.2 @ 50 Hz 0.8 @ 60 Hz Tab.8 Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23... - Page 11 *for ambient temperature >+50°C in intermittent or short-period operation, the max. surface temperature on the capacitor is to be checked in the final device. This must not exceed +85°C. Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23...
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Page 12: Product Description
Product description Diaphragm Pump N936 4 Product description Design 1 Fan 2 Pneumatic pump inlet 3 Pneumatic pump outlet 4 Electrical connection Fig.1 Diaphragm pump N936 Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23... - Page 13 (2). In the upwards stroke, the diaphragm presses the medium out of the pump head via the outlet valve (1). The transfer chamber (3) is separated from the pump drive by the diaphragm. Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23...
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Page 14: Transport
30 to 85 ing) [%] Tab.11 Transport parameters and storage parameters Prior to commissioning, make sure that the pump has reached the ambient temperature (3 Techni- cal data). NOTICE Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23... -
Page 15: Installation And Connection
Store the pump at the installation site to allow it to adapt to the ambient temperature before installation (condensation must not be allowed to form). à Mounting dimensions For mounting dimensions, see the following illustrations: Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23... - Page 16 à Protect the pump from dust. à Protect the pump from coating with greases and oils. à Protect the pump from vibration and impact. Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23...
- Page 17 Automatic restart after tripping of the self-re- setting protection temperature limiter. Risk of pump damage during operation à Take protective measures against the pene- tration of foreign bodies into the pump. CAUTION Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23...
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Page 18: Electrical Connection
2. Connect the motor cable: The electrical connection is established via three flat plugs (each 6.3 x 0.8 for L1, N and PE). NOTICE Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23... -
Page 19: Pneumatic Connection
NOTICE 3. Lay the suction line and pressure line with a descent so that no con- densate can run into the pump. Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23... -
Page 20: Operation
The pumps are built-in devices. Before they are commissioned, it must be ensured that the machines or systems into which the pumps are in- stalled comply with the relevant provisions. Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23... - Page 21 If pump operation is interrupted by the thermal switch due to overheating, the pumps start auto- WARNING matically after they have cooled. à Ensure that no dangerous situations can arise as a result. Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23...
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Page 22: Information On Switching The Pump On And Off
Switching off/decommissioning the pump à At the end of an evacuation or a process, KNF recommends letting the pump run for several minutes with air as the medium to remove con- densate from the pump head (drying of the pump). -
Page 23: Servicing
(if necessary for safety reasons: with an inert gas) to extend the service life of the diaphragm. à Discharge the media safely. 8.2.2 Cleaning the pump à Requirements Pump disconnected from mains and voltage-free Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23... -
Page 24: Replacing Diaphragm, Valves And O-Rings
CAUTION à Allow the pump to cool after operation. à Always replace diaphragm, valves and O-rings together to maintain the performance and safety of the pump. Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23... - Page 25 2. Loosen the four head plate screws (7). 3. Remove the pump head (consisting of head plate (12) and intermedi- ate plate (8)) together from the pump housing (9). Fig.5 Pump N936 Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23...
- Page 26 1. Reconnect the suction and pressure side to the pump. 2. Connect the pump to the electrical mains. If you have questions with regard to maintenance, please contact your KNF Customer Service (contact data: see www.knf.com). Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23...
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Page 27: Spare Parts And Accessories
Tab.17 Fig.7 Pump head (exploded view, symbolic) 9.2 Accessories Accessories Order number Rubber-bonded metal; M4 IG (4 124782 pieces/pump) Hose connectors Ms G1/4" for 004950 ID-9mm Cu-seal 005150 Tab.18 Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23... -
Page 28: Troubleshooting
Determine the cause of the overheating and elim- inate the cause. à Diaphragm, valves or O-rings are Replace diaphragm, valves or O-rings (see Chap- worn or defective. ter 8.3 Replacing diaphragm, valves and O-rings). Tab.19 Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23... - Page 29 8.3 Replacing diaphragm, valves and O-rings). Tab.20 Pump exhibiting changed running noises and vibrations Cause Troubleshooting à Pump bearing worn or defective. Determine the cause. à Contact KNF Customer Service. Tab.21 Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23...
- Page 30 3. Clean the pump (see Chapter 8.2.2 Cleaning the pump). 4. Send the pump together with completed Health and Safety Clearance and Decontamination Form to KNF, specifying the pumped medium. Translation of Original operating and installation instruction, English, KNF 320276-320275 09/23...
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Page 31: Returns
Returns KNF shall undertake to repair the pump only under the condition that the customer presents a certificate regarding the medium that is pumped and the cleaning of the pump. In this case too, old devices can be returned. - Page 32 KNF worldwide You can find our local KNF partners at: www.knf.com...
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