background image

The

electrical installation

must be checked every 8'000 operating hours

with regards to its good operation and possible damage. This also
includes the vacuum pump controls and equipotential.

NOTE

: These particular maintenance procedures are not necessary if

the pump is not used to draw explosive gases and vapours. However,
they can be scheduled in if the user reckons they are necessary.

CAUTION

Only authorised personnel may carry out any dismantling on the
vacuum pump. Before work begins, the operator of the vacuum
pump must fill in a form or a “Declaration Regarding Contamination
of Vacuum Equipment and Components” that provides information
on possible dangers and appropriate measures.
If this form has not been filled in completely and signed by a
responsible person, the vacuum pump may not be dismantled.

CAUTION

During operation the surface of the vacuum pump may reach
temperatures in excess of 90 °C.

Risk of burns!

Before starting any maintenance work, make sure that the vacuum
pump has been fully switched off and that it cannot accidentally be
switched on again. Follow the shut-down procedure in the section
“Stopping procedure for maintenance”:

l

Stop the vacuum pump

l

Switch off the power supply (the vacuum pump must be fully
disconnected from the power supply)

l

Put up label or warning board “Maintenance in progress” on or
next to the pump

CAUTION

The oil temperature can reach a value of 100°C!

Danger of burns!

l

Make sure that the oil circuit and the cooling liquid circuit have
been drained before moving the vacuum pump

l

Make sure that any cleaning materials used to clean the vacuum
pumps have been disposed of according to local and national
regulations

Before disconnecting the different connections, make sure that the inlet
and exhaust lines of the vacuum pump have been brought to
atmospheric pressure

When the maintenance work has been finished, follow the procedure
“Start-up procedure after maintenance”:

l

Remove the label or warning board “Maintenance in progress”

l

Check the cooling liquid and oil levels according to chapters
“Checking the oil level” and “Checking the cooling liquid level”

l

Connect the pump up to the power supply

l

Make sure that the “Installation Prerequisites” are followed

Maintenance programme

NOTE

: The maintenance intervals depend on the individual operating

conditions. The intervals given below should be considered as initial
guidelines which should be shortened or extended as appropriate. In
particularly heavy duty operation such as high dust loads in the
environment or in the process gas, it can become necessary to shorten
the maintenance intervals significantly.

Weekly:

l

Check the oil level (see “Checking the Oil”)

l

Check the level of the cooling liquid (see “Checking the Cooling
liquid”)

l

Check the vacuum pump for oil leaks - in case of leaks, have the
vacuum pump repaired

l

Check the vacuum pump for cooling liquid leaks - in case of leaks,
have the vacuum pump repaired

Every 4'000 operating hours:

l

Change the gear and bearing oil

Every 8’000 operating hours:

l

Check and clean the inlet filter or screen

l

Check the operating of all sensors fitted to the pump

NOTE:

These particular maintenance procedures are not necessary if

the pump is not used to draw explosive gases and vapours. However,
they can be scheduled in if the user reckons they are necessary.

l

Clean the silencer fitted at the outlet (if available)

l

Change the cooling liquid

Every 24’000 operating hours:

NOTE:

These particular maintenance procedures are not necessary if

the pump is not used to draw explosive gases and vapours. However,
they can be scheduled in if the user reckons they are necessary.

l

Change all parts subject to wear (bearings, shaft seals) (Busch
Service)

Stopping procedure for maintenance

l

Stop the vacuum pump

l

Switch off the power supply (the vacuum pump must be
disconnected from the power supply)

l

Put up label or warning board “Maintenance in progress” on or
next to the pump

Start-up after maintenance

l

Remove label or warning board “Maintenance in progress”

l

Check the cooling liquid and oil levels according to the chapters
“Checking the oil level” and “Checking the cooling liquid level”

l

Connect the pump up to the power supply

l

Make sure that the “Installation Prerequisites” are followed

l

Start the vacuum pump

Checking the oil

Checking the oil level

l

Make sure that the vacuum pump is switched off and cannot
accidentally be switched on again

If the oil level is below the required level:

u

Top up with oil (see “Topping up with oil”)

If the oil level is above the required level:

u

Check the evacuation of the condensates.

u

Change the oil (see “Draining the oil”)

Topping up with oil

NOTE

: Under normal conditions there should be no need to top up

with oil in-between the recommended oil change intervals. A
significant drop in the oil level indicates a malfunction (see
“Troubleshooting”).

CAUTION

Fill in oil only through the oil filler holes.

Maintenance

Page 14

Содержание 7180551

Страница 1: ...s Screw Vacuum Pumps COBRA NC 400 B for Ecoclean GmbH cleaning equipment Ecoclean part number 7180551 7181192 Ateliers Busch S A Zone industrielle 2906 Chevenez Switzerland 0870543127 0004 191016 Orig...

Страница 2: ...ooling liquid 15 Checking the level of the cooling liquid 15 Topping up with cooling liquid 15 Changing the cooling liquid 16 Draining the cooling liquid 16 Filling up with new cooling liquid 16 Check...

Страница 3: ...is 100 hPa If there is a risk that this back pressure could exceed 100 hPa a pressure switch must be installed at the exhaust of the pump which will stop the pump as soon as the back pressure exceeds...

Страница 4: ...machine 3 Equipment group II not for mining application 4 Equipment category for explosive gases inside the machine 5 Type of protection 6 Explosion group inside the machine 7 Temperature class insid...

Страница 5: ...2151 CAUTION The vacuum pump emits noise of high intensity Risk of damage to the hearing Persons staying in the vicinity of a non noise insulated vacuum pump over extended periods shall wear ear prot...

Страница 6: ...p the vacuum pump in VCI film NOTE VCI is the abbreviation for volatile corrosion inhibitor The VCI molecule is an organic corrosion inhibitor in the vapour phase Integrated in various carriers such a...

Страница 7: ...acuum pump may exceed temperatures of 90 C Risk of burns l Make sure that the vacuum pump cannot be touched inadvertently during operation provide a guard if necessary l Make sure that the oil sight g...

Страница 8: ...mply with the regulations according to European Standard EN 50081 and EN 50082 electromagnetic compatibility If this is not the case the manufacturer of the vacuum system must be notified If the motor...

Страница 9: ...ue for more than 2 seconds the gas inlet must be automatically closed If the measured value 10 seconds moreafter falls one more time under the reference value the gas inlet can be re opened and the va...

Страница 10: ...pecified in the operating instructions is of informative nature only Check the oil level with the help of the various oil sight glasses OSG on the vacuum pump CAUTION Before changing the type of oil m...

Страница 11: ...valve BGR set the barrier gas overpressure to 3 bar Shortly before starting the pump until shortly after stopping it the vacuum pump has to be continually pressurised with barrier gas Saving the opera...

Страница 12: ...ON During operation the surface of the vacuum pump can exceed temperatures of 90 C Risk of burns The vacuum pump must be protected against contact during operation If touching the pump is unavoidable...

Страница 13: ...ates inside the pump due to the process the time for inerting should be extended to a minimum of 10 minutes which will dry the pump l Switch off the pump l Make sure that the system is completely disc...

Страница 14: ...e considered as initial guidelines which should be shortened or extended as appropriate In particularly heavy duty operation such as high dust loads in the environment or in the process gas it can bec...

Страница 15: ...CAUTION Because the ends of the drain plugs are magnetic metal swarf can stick to them Always clean away this swarf when removing the drain plugs Because of wear and tear of the seals it is recommend...

Страница 16: ...uid level is below the required level u Fill in more cooling liquid If the inlet line is equipped with a shut off device u Open the shut off device If the inlet line is not equipped with a shut off de...

Страница 17: ...aminated and the degree of contamination must be documented in a declaration of decontamination Declaration of Decontamination which can be downloaded from www buschvacuum com Used oil and condensates...

Страница 18: ...rns Let the vacuum pump cool down prior to contact or wear heat protection gloves Problem Possible Cause Remedy The vacuum pump does not reach the usual pressure The vacuum system or suction line is n...

Страница 19: ...y provide a drain line and a drain cock Drain any condensates regularly The vacuum pump starts but labours or runs noisily or rattles The drive motor draws a too high a current compare with initial mo...

Страница 20: ...ging The oil is black Oil change intervals are too long The oil has overheated Drain the oil Fill in new oil see Maintenance In case the oil life is too short use oil with bet ter heat resistance or a...

Страница 21: ...of the publication of these installation and operating instructions on the rear cover page Find the up to date list of Busch companies and agencies all over the world on the internet at www buschvacu...

Страница 22: ...C 25 ready to use 25 litres can 5 litres can part no 0831 563 468 part no 0831 563 469 Cooling liquid quantity The quantity of cooling liquid specified in this instructions manual is of informative n...

Страница 23: ...r 0 05 Nominal motor rating with discharge counter pressure 0 1 bar 50 Hz 60 Hz kW kW 7 5 9 5 Nominal motor speed 50 Hz 60 Hz min 1 min 1 3000 3600 Noise level EN ISO 2151 50 Hz 60 Hz dB A dB A 66 69...

Страница 24: ......

Страница 25: ...of machinery Safety distances to prevent hazard zones being reached by the upper and lower limbs EN 1012 1 2010 EN 1012 2 1996 A1 2009 Compressors and vacuum pumps Safety requirements Part 1 and 2 EN...

Страница 26: ...Temperature sensor TS Temperature sensor TS Page 26...

Страница 27: ...Temperature sensor TS Page 27...

Страница 28: ...Temperature sensor TS Page 28...

Страница 29: ...Temperature sensor TS Page 29...

Страница 30: ...d No 2054040 Fax 44 0 1494 812256 Web www monitran com Vat No GB442 4883 40 27mm 43mm 28mm A F White ve Black 0 volts Screen not connected to case 0 1 20 3 4 1 5 4 6 7 8 397 43 0 4 6 04 A 8B C 5 4 5 8...

Страница 31: ...lue Base MS039 1 4 28 UNF 10 32 UNF MS002 Q F Male M8 Male MS067 1 4 28 UNF M8 MS003 Q F Male M10 Male MS068 1 4 28 UNF 1 4 28 UNF MS004 Q F Male 1 4 28 UNF Male MS124 1 4 28 UNF M10 MS006 Q F Male M6...

Страница 32: ...l info monitran com Registered in England No 2054040 Fax 44 0 1494 812256 Web www monitran com Vat No GB442 4883 40 We reserve the right to alter specifications without prior notice 4 20 mA 0V 24V Zen...

Страница 33: ...Type Examination Certificate Baseefa02ATEX1057 dated 28th July 2009 and subsequent Variation Certificates Quality Assurance Notification Sira 02ATEX M171 dated 01 05 2012 Compliance with the Essentia...

Страница 34: ...Note...

Страница 35: ...Note...

Страница 36: ...myun Icheon si Gyunggi do 467 813 Republic of Korea Phone 82 31 645 2700 Fax 82 31 631 2898 e mail busch busch co kr Malaysia Busch Malaysia Sdn Bhd 4 6 Jalan Taboh 33 22 Seksyen 33 Shah Alam Technolo...

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