MAYEKAWA M Series - User Manual

Questions and Answers

B
bakerrobertAug 20, 2025
What to do if MAYEKAWA M Series motor stops shortly after starting?
- D
  Darryl CarlsonAug 20, 2025
  If your MAYEKAWA Air Compressor motor stops shortly after starting, it might be due to the OP (low oil pressure failure protection equipment) being activated because of refrigerant oil rundown or low oil pressure. In this case, supply oil or adjust the oil pressure. Alternatively, the HP (high pressure protection equipment) might be activated due to excessive discharge pressure caused by the condenser being filled with non-condensable gas, so purge air from the condenser.
D
Darren ParkerAug 22, 2025
Why is my MAYEKAWA M Series condenser temperature warmer than usual?
- H
  heather64Aug 22, 2025
  If the condenser temperature of your MAYEKAWA Air Compressor is warmer than usual, it could be due to a cooling water shortage or excessively high cooling water temperature. Increase the volume of cooling water, or lower the cooling water temperature.
M
Meredith LynchAug 25, 2025
What to do if MAYEKAWA M Series magnet switch button has no reply?
- L
  Lisa SmithAug 25, 2025
  If there's no response when pressing the magnet switch button on your MAYEKAWA Air Compressor, check if the breakers have tripped and replace them if needed. Also, inspect and replace the magnet switch contact if it has failed, or if the protection switch is being pressed. Inspect and replace any electric wires that are cut off. Finally, ensure the OP (low oil pressure failure protection equipment) or HP (high pressure protection equipment) is reset (restored).
J
Jason MitchellAug 26, 2025
What to do if MAYEKAWA Air Compressor head cover is overheated?
- O
  oleeAug 26, 2025
  If the head cover of your MAYEKAWA Air Compressor is overheated, it may be due to insufficient cooling water distribution or a dirty cooling pipe. Distribute water evenly, or clean the cooling pipe.
M
Matthew SmithAug 27, 2025
What to do if my MAYEKAWA Air Compressor motor does not operate?
- T
  turnercassandraAug 28, 2025
  If your MAYEKAWA Air Compressor motor does not operate, there could be several reasons. It could be due to motor failure, in which case you should inspect and repair or replace the motor. The belt tension might be too high, requiring adjustment. A voltage drop could also be the cause. If, upon removing the belt and rotating the pulley by hand, the pulley still doesn't rotate, there may be a failure of the cylinder sleeve, piston, ring, or metal part (shaft seal component), requiring inspection and repair or replacement. Lastly, there might be a failure or mistake in the automatic control and electric related connections (single phase), which would need inspection and repair.
J
John JohnsonAug 29, 2025
Why is my MAYEKAWA Air Compressor cooling water temperature of evaporative condenser warm?
- E
  egonzalezAug 29, 2025
  If the cooling water temperature of your MAYEKAWA Air Compressor's evaporative condenser is warm, it could be due to fan failure or clogged spray nozzle and strainer. Inspect, repair, and clean the affected components.
G
Gina RomanAug 31, 2025
Why is my MAYEKAWA M Series Air Compressor head cover overheated with high discharge and suction pressure?
- D
  Daniel ByrdAug 31, 2025
  If the head cover of your MAYEKAWA Air Compressor is overheated, accompanied by high discharge and suction pressure, it could be because the compression ratio has increased due to increased condensed temperature or refrigerant load. Increase cooling water for the condenser, or higher the cooling water temperature.
A
Angela BarrettSep 2, 2025
What to do if MAYEKAWA M Series Air Compressor magnet switch button is energized then turns off?
- D
  davischristineSep 2, 2025
  If the MAYEKAWA Air Compressor magnet switch button is energized when pressed but turns off when released, it may be due to a mistake in connection (automatic control related connections), which requires inspection and repair. Alternatively, there could be a contact defect of the auxiliary contact or equivalent, which needs inspection and repair or replacement.
N
Nicole WigginsSep 4, 2025
Why is MAYEKAWA M Series upper condenser warm but lower part not?
- J
  Jesse LesterSep 4, 2025
  If the upper part of your MAYEKAWA Air Compressor's condenser is warm while the lower part is not, and the crankcase easily becomes frosty, it indicates that refrigerant or refrigerant oil is accumulating in the condenser, resulting in a small cooling area. This could be due to a clogged pipe between the condenser and receiver, so inspect, adjust, and unclog it. It could also be due to excessive refrigerant, so wipe off the refrigerant.
S
Shirley PerkinsSep 6, 2025
What causes continuous metal sound in MAYEKAWA Air Compressor?
- J
  James BookerSep 6, 2025
  A continuous metal sound in your MAYEKAWA Air Compressor can be caused by foreign material stuck between the cylinder head and piston; in this case, disassemble, maintain, and replace the components. It may also be due to damaged discharge valve, suction valve, and piston ring, requiring disassembly and replacement.

Summary

Preface

Warranty and Disclaimer

Warranty Clauses

Details the terms and conditions for product malfunctions and repairs under warranty.

Disclaimer Clauses (Exclusion of Warranty Clauses)

Lists specific conditions and events that are exempted from warranty coverage.

Important Information

Intended Use of the Product

Specifies the intended applications and restrictions for the compressor's use.

Important Information for Safe Use of the Product

Crucial safety guidelines, precautions, and responsibilities for operating the compressor.

1 Safety

1.1 Observation;Prevention

Guidelines for safe operation, maintenance, and hazard prevention measures.

1.2 Warnings

Explains hazard symbols and their meanings used throughout the manual.

1.3 Remaining Hazard

Identifies hazardous parts, predicted hazards, and counter-measures.

1.4 Safety Devices

Describes essential safety features, their functions, and installation positions.

3 Installation

3.1 Safety Precautions for Installation

Safety measures and requirements to be followed before and during compressor installation.

3.2 Installation Works

Procedures for unpacking, storage, transfer, and preparation for compressor installation.

4 Operation of the Compressor and the System

4.1 Refrigerant Oil

Information on refrigerant oil selection, properties, and handling procedures.

4.2 Initial Operation

Procedures for the first startup and trial operation of the compressor.

5 Maintenance

5.1 Safety Precautions for Maintenance

Safety guidelines to follow before and during all maintenance procedures.

5.2 Periodic Inspection

Schedule and items for daily, monthly, and biannual inspections.

5.3 Maintenance (Overhaul)

Guidelines for scheduled maintenance periods and operation conditions.

5.5 Disassembly;Assembly

Detailed procedures for taking apart and reassembling compressor components.

6 Troubleshooting

6.1 Troubleshooting Table

Lists common problems, causes, results, and countermeasures for compressor issues.

7 Related Document

7.1 Development View and Configuration Table of the Parts

Provides exploded views and part lists for compressor components.

7.3 List of Tools for Disassembly

Lists necessary tools for disassembling and maintaining the compressor.

7.7 Parts Inspection and Replacement Standards

Guidelines for inspecting and replacing wear-prone compressor parts.

Summary

Preface

Warranty and Disclaimer

Warranty Clauses

Details the terms and conditions for product malfunctions and repairs under warranty.

Disclaimer Clauses (Exclusion of Warranty Clauses)

Lists specific conditions and events that are exempted from warranty coverage.

Important Information

Intended Use of the Product

Specifies the intended applications and restrictions for the compressor's use.

Important Information for Safe Use of the Product

Crucial safety guidelines, precautions, and responsibilities for operating the compressor.

1 Safety

1.1 Observation;Prevention

Guidelines for safe operation, maintenance, and hazard prevention measures.

1.2 Warnings

Explains hazard symbols and their meanings used throughout the manual.

1.3 Remaining Hazard

Identifies hazardous parts, predicted hazards, and counter-measures.

1.4 Safety Devices

Describes essential safety features, their functions, and installation positions.

3 Installation

3.1 Safety Precautions for Installation

Safety measures and requirements to be followed before and during compressor installation.

3.2 Installation Works

Procedures for unpacking, storage, transfer, and preparation for compressor installation.

4 Operation of the Compressor and the System

4.1 Refrigerant Oil

Information on refrigerant oil selection, properties, and handling procedures.

4.2 Initial Operation

Procedures for the first startup and trial operation of the compressor.

5 Maintenance

5.1 Safety Precautions for Maintenance

Safety guidelines to follow before and during all maintenance procedures.

5.2 Periodic Inspection

Schedule and items for daily, monthly, and biannual inspections.

5.3 Maintenance (Overhaul)

Guidelines for scheduled maintenance periods and operation conditions.

5.5 Disassembly;Assembly

Detailed procedures for taking apart and reassembling compressor components.

6 Troubleshooting

6.1 Troubleshooting Table

Lists common problems, causes, results, and countermeasures for compressor issues.

7 Related Document

7.1 Development View and Configuration Table of the Parts

Provides exploded views and part lists for compressor components.

7.3 List of Tools for Disassembly

Lists necessary tools for disassembling and maintaining the compressor.

7.7 Parts Inspection and Replacement Standards

Guidelines for inspecting and replacing wear-prone compressor parts.

MAYEKAWA M Series Specifications

General

Brand	MAYEKAWA
Model	M Series
Category	Air Compressor
Language	English

Related product manuals

MAYEKAWA M Series - User Manual

Table of Contents

Questions and Answers

Summary

Preface

Warranty and Disclaimer

Warranty Clauses

Disclaimer Clauses (Exclusion of Warranty Clauses)

Important Information

Intended Use of the Product

Important Information for Safe Use of the Product

1 Safety

1.1 Observation;Prevention

1.2 Warnings

1.3 Remaining Hazard

1.4 Safety Devices

3 Installation

3.1 Safety Precautions for Installation

3.2 Installation Works

4 Operation of the Compressor and the System

4.1 Refrigerant Oil

4.2 Initial Operation

5 Maintenance

5.1 Safety Precautions for Maintenance

5.2 Periodic Inspection

5.3 Maintenance (Overhaul)

5.5 Disassembly;Assembly

6 Troubleshooting

6.1 Troubleshooting Table

7 Related Document

7.1 Development View and Configuration Table of the Parts

7.3 List of Tools for Disassembly

7.7 Parts Inspection and Replacement Standards

Summary

Preface

Warranty and Disclaimer

Warranty Clauses

Disclaimer Clauses (Exclusion of Warranty Clauses)

Important Information

Intended Use of the Product

Important Information for Safe Use of the Product

1 Safety

1.1 Observation;Prevention

1.2 Warnings

1.3 Remaining Hazard

1.4 Safety Devices

3 Installation

3.1 Safety Precautions for Installation

3.2 Installation Works

4 Operation of the Compressor and the System

4.1 Refrigerant Oil

4.2 Initial Operation

5 Maintenance

5.1 Safety Precautions for Maintenance

5.2 Periodic Inspection

5.3 Maintenance (Overhaul)

5.5 Disassembly;Assembly

6 Troubleshooting

6.1 Troubleshooting Table

7 Related Document

7.1 Development View and Configuration Table of the Parts

7.3 List of Tools for Disassembly

7.7 Parts Inspection and Replacement Standards

MAYEKAWA M Series Specifications

Related product manuals