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Dongguan Biqier Vacuum Electromechanical Equipment Co., Ltd

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Edwards screw vacuum pump repair

NegotiableUpdate on 05/13

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Nature of the Manufacturer: Producers

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Place of Origin

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Overview

Edwards screw vacuum pump maintenance must be disassembled using specialized tools, otherwise it cannot be completed. Clearly identify the location, length, and size of the screws, mark them properly, and avoid errors during assembly. Accessories must be neatly arranged for easy assembly in the future

Product Details

Dongguan Biqier is a professional vacuum pump maintenance service provider, undertaking Edward Roots pumps, screw pumps, claw vacuum pumps, semiconductor industry vacuum pumps, coating machine vacuum pumps, etc. Edward repair parts, vacuum pump oil, sealing kit, overhaul kit, rotary blades, filters, etc.

Edwards is a provider of integrated solutions for manufacturing semiconductors, flat panel displays, LEDs, and solar cells, specializing in vacuum technology for industrial, pharmaceutical, chemical, scientific research, processing, glass coating, food packaging industries, and a wide range of research and development applications.

Edward rotary vane pump EM series pump maintenance:

E1M5、E1M8、E1M12、E1M18、E1M30、E1M40、E1M80、E1M175、E1M275、E2M0.7、E2M1、E2M1.5、E2M2、E2M5、E2M8、E2M12、E2M18、E2M28、E2M30、E2M40、E2M80、E2M175、E2M275

Edward Roots Pump Repair:

Edwards EH Series: (Roots Vacuum Pump) EH250, EH500, EH1200, EH2600, EH4200

Edwards QMB Series: (Roots Vacuum Pump) QMB-250, QMB-500, QMB-1200

Edwards MB Series: (Roots Vacuum Pump) MB 800, MB 1200, MB 2600, MB 4200, MB 5700

Edwards HV Series: (Large Roots Vacuum Pump) HV8000, HV14000, HV30000

Edwards GV series vacuum unit model maintenance: GV80+EH250、GV80+EH500、GV160+EH1200、GV250+EH2600、GV400+EH2666、GV400+EH4200、GV600+EH4200

Edwards screw vacuum pump repairMethod:

1、 Preparation before maintenance

Appearance inspection: Check whether the pump body is damaged. If there is any damage, record it and inform the user unit

Understand the working conditions: confirm the type of process used to determine the subsequent handling method

Fault diagnosis: Check if it is stuck - the relevant parts can be removed and tested by turning with a wrench. If it can be turned, it is not stuck; If it gets stuck, it should not be powered on to avoid burning the motor

Power confirmation: Confirm the voltage parameters based on the actual voltage of the unit being used

Waterway inspection: Water must be supplied before powering on, and all joints must be checked for water leakage

2、 Disassembly and maintenance steps

Disassembly precautions

Special tools must be used for disassembly, otherwise it cannot be completed

Clearly identify the location, length, and size of the screws, mark them properly, and avoid errors during assembly

Accessories must be neatly arranged for easy assembly in the future

Key component inspection

Rotor inspection: Check for signs of wear on the rotor and measure if the rotor size meets the standard

Shaft sleeve inspection: Check if the size of the shaft sleeve meets the standard

Cylinder body/pump chamber inspection: Check the cover plate and cylinder wall for scratches or damage

Gear inspection: Check the wear of gears

Cleaning treatment

Use an ultrasonic cleaning machine to clean all parts

After cleaning, put it in the oven and bake it dry

Perform sandblasting treatment on the cavity and cover plate

3、 Assembly and Debugging

Assembly points

Bearings and shaft seals: must be assembled in place, otherwise it will affect maintenance quality and service life

Accessory quality: Use accessories that meet or exceed OEM specifications

Gap debugging: This is the key to determining the service life and vacuum degree of the vacuum pump

Screw locking: Lock according to standard torque to prevent loosening and jamming during use

4、 Common faults and maintenance methods

fault phenomenon	Possible reasons	Repair Method
Insufficient vacuum degree	Seal aging, internal wear, and air intake leakage	Replace the sealing components; Conduct leak testing and repair; Measure the ultimate vacuum degree and replace relevant components when there is severe wear
Abnormal noise	Bearing damage, rotor imbalance, gear wear	Check and replace damaged bearings; Check rotor wear and clean foreign objects; Replace worn gears
overheating	Cooling system malfunction, overload operation, insufficient lubrication	Check the cooling fan or water cooling system; Measure the operating current to avoid overload; Check the oil circuit and replenish lubricating oil
Difficulty initiating/Stuck up	Motor malfunction, mechanical jamming, foreign object ingress	Check the power supply and motor winding; Check and clean up foreign objects or damaged parts inside the pump
Insufficient pumping volume	Pipeline blockage, internal wear and tear	Clean the pipeline; Repair or replace worn parts
unstable performance	Inappropriate clearance and component wear	Re debug the gap; Replace non compliant components

5、 Test acceptance

Motor testing: After confirming the voltage is correct, power on and test the forward and reverse rotation of the motor

Vacuum test: Connect the vacuum gauge head and check whether the maximum vacuum degree and pumping speed meet the standards

Leakage test: The leakage test standard meets the requirements

Running test: Conduct a 48 hour continuous test after water and ventilation, monitoring total pressure, temperature, vibration, and noise levels

Vibration analysis: Use professional equipment for vibration analysis to ensure smooth operation

6、 Maintenance suggestions

Regular inspection: Regularly check the lubrication of bearings and replace damaged bearings in a timely manner

Cleaning and maintenance: Regularly clean the surface and interior of the pump to avoid the accumulation of impurities

Seal replacement: Regularly replace seals to ensure vacuum suction efficiency

Electrical inspection: Regularly check the electrical connections

Choose the advantages of Biqier - a professional manufacturer specializing in the maintenance of imported vacuum pumps

Technical guarantee: With over 10 years of experience in repairing various imported vacuum pumps and professional fixtures.

Quality assurance: Authorized agents, vacuum pump maintenance parts, consumables.

Time guarantee: Provide localized vacuum pump maintenance services with short maintenance cycles.

Operation guarantee: Under normal use, a 6-month extended warranty service is provided.

Price guarantee: services obtained at a good price.

Service guarantee: 7-24 hours of technical consultation and troubleshooting, as well as on-site repair services for customers.