BUSCH Mink MM 1252 AV User Manual

BUSCH Mink MM 1252 AV

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Installation and

Operating Instructions

Vacuum Pumps

MINK MM 1324, 1202, 1252, 1322 AV

ATEX-Version

Busch Produktions GmbH

Schauinslandstr. 1

79689 Maulburg

Germany

0870145304 / 190709 / Original instructions / Modifications reserved

Table of Contents

Other manuals for BUSCH Mink MM 1252 AV

Instruction Manual40 pages

Questions and Answers:

C
christinesmithAug 23, 2025
What to do if my BUSCH Mink MM 1252 AV won't start?
- R
  ritashortAug 23, 2025
  If your BUSCH Water Pump fails to start, begin by ensuring the drive motor is receiving the correct voltage. Next, check the drive motor starter overload protection; if it's set too low, compare its trip level to the nameplate data and correct if necessary, increasing it by 5 percent above the nominal drive motor current in high ambient temperatures. Also, verify that none of the fuses have blown. Finally, ensure the connection cable is adequately sized to prevent voltage drops at the pump.
A
Angela ThomasAug 25, 2025
Why does my BUSCH Mink MM 1252 AV Water Pump start, but labours or runs noisily?
- B
  Brianna JonesAug 25, 2025
  If your BUSCH Water Pump starts but is running with laboring sounds, unusual noises or rattling, check for loose connections in the drive motor terminal box, ensuring all wires are properly connected according to the connection diagram, especially on motors with six coils; tighten or replace any loose connections. For three-phase motor versions, verify the pump isn't running in the wrong direction. If foreign objects are present or bearings are stuck, it is best to have the vacuum pump repaired by Busch service.
J
joshua07Aug 27, 2025
Why is my BUSCH Water Pump running so hot?
- A
  Alexander WilliamsAug 27, 2025
  If the BUSCH Water Pump is running very hot, first ensure sufficient air ventilation by cleaning the fan cowlings, fan wheels, ventilation grilles, and cooling fins to remove any dust or dirt impeding cooling. If the pump is in a narrow space, ensure adequate ventilation. Also, check that the ambient and inlet gas temperatures are within permitted limits.
X
xpenaAug 27, 2025
Why is my BUSCH Mink MM 1252 AV Water Pump so noisy?
- T
  Tyler BowmanAug 27, 2025
  If the BUSCH Water Pump is running very noisily, the issue could stem from defective bearings, which would require repair by Busch service. Another potential cause is a worn coupling element, which should be replaced. Low oil level or damage to the synchronizing gear can also cause noise, both of which necessitate repair by Busch service.
V
Vincent CochranAug 29, 2025
What to do if BUSCH Water Pump or the drive motor is blocked?
- M
  Melanie MurrayAug 29, 2025
  If the BUSCH Water Pump is blocked, ensure the drive motor is disconnected from the power supply. Remove the fan cover and try turning the drive motor with the vacuum pump by hand. If it remains frozen, remove the drive motor to check it and the vacuum pump separately. If the vacuum pump is blocked, it is best to have the vacuum pump repaired by Busch service.
C
Christina EsparzaAug 30, 2025
What causes a BUSCH Water Pump to be blocked?
- W
  Wayne DrakeAug 30, 2025
  If your BUSCH Water Pump is blocked, it could be due to solid foreign matter entering the pump, requiring repair by Busch service; ensure the suction line has a screen, and consider adding a filter. Corrosion from remaining condensate can also cause blockage, necessitating repair by Busch service; check the process and consult the chapter on conveying condensable vapors. For three-phase motor versions, incorrect running direction can block the pump, requiring repair by Busch service; ensure correct direction upon connection.
C
Christina OnealSep 1, 2025
Why does the gas from my BUSCH Mink MM 1252 AV smell bad?
- V
  Victor WilliamsonSep 1, 2025
  If the gas conveyed by the BUSCH Water Pump has a displeasing smell, it may be due to process components evaporating under vacuum. In this case, check the process itself to identify and address the source of the odor, if applicable.
J
johnortizSep 2, 2025
What if the drive motor runs, but the BUSCH Mink MM 1252 AV doesn't?
- D
  Donna DavisSep 2, 2025
  If the drive motor of your BUSCH Water Pump is running, but the vacuum pump remains still, the coupling between the motor and pump is likely defective and needs to be replaced.
J
Jill JenkinsSep 4, 2025
What to do if my BUSCH Mink MM 1252 AV Water Pump does not start?
- C
  Christopher HernandezSep 4, 2025
  If your BUSCH Water Pump doesn't start, there could be several reasons: * The motor might not be getting the correct voltage. Check the power supply. * The motor itself could be defective, requiring replacement. * The coupling (CPL) might be defective and need to be replaced.
R
rochadestinySep 5, 2025
Why is my BUSCH Mink MM 1252 AV Water Pump running very noisily?
- D
  Debra JuarezSep 5, 2025
  If your BUSCH Water Pump is running noisily, it could be due to: * A worn coupling (CPL), which requires replacement. * Low oil level. In this case you should top up the oil. * Defective bearings. It is recommended to contact Busch to repair the machine.

BUSCH Mink MM 1252 AV Specifications

General

Brand	BUSCH
Model	Mink MM 1252 AV
Category	Water Pump
Language	English

Summary

Preface

Product Description

Use

Defines the intended applications and operational limits of the vacuum pump.

Safety Concept

Installation and Commissioning

Installation prerequisites

Essential conditions and checks before installing the vacuum pump.

Electrical Connection / Controls

Connecting Electrically

Detailed steps for making electrical connections to the drive motor.

Troubleshooting

Spare Parts

Equipment Documentation Measurement and Safety Instrumentation

Version with Resistance Thermometer, without Transmitter

Details for resistance thermometers without an integrated transmitter.

Safety

Intended use

Defines the proper applications for the WIKA resistance thermometers and thermocouples.

Commissioning, operation

Information on mounting, operation in hazardous area (Europe)

Faults

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