MAYEKAWA 4M - User Manual

Questions and Answers

S
sandra23Aug 9, 2025
Why MAYEKAWA Air Compressor motor does not operate?
- J
  jim86Aug 9, 2025
  If your MAYEKAWA Air Compressor motor isn't operating, it could be due to several reasons. It may be a motor failure, in this case you should inspect and repair or replace the motor. Alternatively, the belt tension might be too high (adjust the tension). It is also possible that the voltage is dropped. Another cause could be failure of the cylinder sleeve, piston, ring, or metal part (inspect and repair or replace). Finally, there might be a failure or mistake in automatic control or electrical connections (inspect and repair).
A
Abigail LongAug 14, 2025
What to do if MAYEKAWA 4M has no reply though pressing the magnet switch button?
- M
  Michele JohnsonAug 14, 2025
  If there's no response when you press the magnet switch button on your MAYEKAWA Air Compressor, it could be due to tripped breakers (inspect and replace). It may also be caused by a failure of the magnet switch contact, a pressed protection switch (inspect and repair or replace), cut electric wires (inspect and repair or replace), or the OP/HP being activated and not reset (restore).
S
Stephen ChangAug 21, 2025
Why MAYEKAWA 4M condenser temperature is warmer than usual?
- A
  Amanda StarkAug 21, 2025
  If the condenser temperature of your MAYEKAWA Air Compressor is warmer than usual, it may be due to a cooling water shortage or excessively high cooling water temperature. To resolve this, increase the volume of cooling water or lower the cooling water temperature.
L
Laura RodriguezAug 26, 2025
What to do if MAYEKAWA 4M Air Compressor energized when the magnet switch button is pressed, but turns off when released?
- D
  David SchmidtAug 26, 2025
  If your MAYEKAWA Air Compressor energizes when the magnet switch button is pressed but turns off when released, there may be a mistake in the automatic control related connections (inspect and repair). Another possible cause is a contact defect of the auxiliary contact or equivalent (inspect and repair or replace).
R
Rebecca WilliamsNov 2, 2025
What to do if MAYEKAWA 4M Air Compressor motor stops shortly after starting?
- S
  Samantha LaneNov 2, 2025
  If the motor of your MAYEKAWA Air Compressor stops shortly after starting, it could be due to several reasons. The OP (oil pressure failure protection equipment) might be activated because of refrigerant oil run down or low oil pressure; in this case, supply oil or adjust the oil pressure. Alternatively, the HP (high pressure protection equipment) could be activated due to excessive discharge pressure caused by non-condensable gas in the condenser (purge air) or excessive suction pressure (replace the refrigerant oil or drain the refrigerant and supply warm oil). Other causes include OP activation due to liquid back (inspect and repair), a mistake in connection between the automatic control equipment and magnet switch (inspect and repair), or the overload relay being activated (wait for th...

Summary

Reciprocating Compressor M Series Operation Manual 4 M;6 M;8 M

CAUTION

Safety warning before operation, inspection, or servicing.

Preface

Introduces the manual and its purpose for safe and effective use.

Warranty and Disclaimer

Warranty and Disclaimer Clauses

Details warranty conditions and lists disclaimer clauses for product liability.

Important Information

Intended Use and Safe Operation

Specifies intended applications, personnel, and critical safety rules.

About This Manual

Manual Overview and Structure

Provides manual language, copyright, availability, and chapter structure.

Inquiry

Contact Information for Inquiries

Contact details for Mayekawa offices for further assistance.

Revision Description

Revision History

Records changes made in different editions of the manual.

1 Safety

Observation and Prevention Guidelines

Guidelines and precautions for safe observation and prevention during operation.

Warnings and Safety Labels

Explains warning symbols and describes safety labels affixed to the compressor.

Remaining Hazards and Countermeasures

Identifies potential hazards and necessary countermeasures during operation and maintenance.

Safety Devices Overview

Details safety devices like emergency stop, breakers, and lockout/tagout for protection.

Drive Section Guards

Purpose and installation of guards for the drive section (belt/coupling).

Safety Relief Valve

Function, installation, and settings of the safety relief valve.

Automatic Control and Protection Equipment

Overview of oil pressure, high pressure, and low pressure protection systems.

Cooling Fluid Temperature Alarm and Oil Heater Switch

Function and testing of cooling fluid alarm and oil heater/thermoswitch.

Material Safety Data Sheet (MSDS) Example

MSDS Example for Chemical Substances

Template for MSDS detailing hazards and handling of chemical substances.

2 Configuration and Specification of Compressor

Compressor Configuration Overview

Overview of the compressor's main components and their arrangement.

Cross-Sectional Views

Cross-sectional diagrams showing the internal assembly of the compressor.

Oil Supply Mechanism

Detailed explanation of how the compressor's lubrication system functions.

Unloader Mechanism

Explanation of the mechanism that controls compressor capacity by altering suction valve operation.

Compressor Specifications

Detailed technical specifications including dimensions, refrigerant, and capacity.

Service Limits and Operating Ranges

Operational limits and ranges for compressor performance.

External Dimensions

Diagrams showing external dimensions of the compressor for different models.

V-belt Selection Guide

Guidelines for selecting the appropriate V-belt based on motor specifications.

3 Installation

Installation Safety Precautions

Critical safety measures to be followed during compressor installation.

Installation Works: Unpacking, Storage, and Transfer

Procedures for unpacking, storing, transferring, and lifting the compressor safely.

Preparation for Installation: Space and Utilities

Requirements for installation space, illumination, ventilation, and piping.

Installation Procedures

General installation steps including surface checks, oil return, and protection switches.

Centering and V;C-belt Attachment

Procedures for aligning compressor/driving machine and attaching V-belts.

Coupling Alignment and Installation

Procedures for aligning shafts and installing couplings between the compressor and motor.

Piping Guidelines

Guidelines for refrigerant and cooling water piping, including support and material considerations.

Post-Installation Checks

Procedures for checking control connections, protection equipment, and refrigerant leakage.

Installation Documentation

Weight, Dimensions, and Lifting Information

Table showing weight/dimensions and diagrams for lifting compressor models.

4 Operation of the Compressor

Refrigeration Oil Properties and Selection

Information on the function, properties, and selection of refrigeration oil.

Oil Charging and Replenishment

Methods for initial oil charging and replenishment during operation.

Setting Oil Pressure

How to adjust the oil pressure to the recommended range.

Oil Quantity Check

Method for judging oil quantity via the oil sight glass.

Initial Operation Procedures

Procedures and checks for the initial startup phase, including filter maintenance.

Unloader Operation Order

Explains how the unloader mechanism controls compressor capacity based on cylinder loading.

Operation Notices: Start;Stop and Shutdown

Start/stop limitations, shutdown procedures, and restart after long stops.

5 Maintenance

Maintenance Safety Precautions

Essential safety measures before and during compressor maintenance.

Periodic Inspection Overview

Importance of recording inspections and maintenance in an operation log.

Daily Inspection Procedures

Daily checks to be performed every 2-3 hours, recorded in the operation log.

Monthly and Biannual Inspections

Monthly inspection tasks and biannual checks for gauge calibration.

Maintenance (Overhaul) Schedule

Factors influencing maintenance frequency and reference periods for first inspection/maintenance.

First Inspection and Maintenance Items

List of parts to inspect and potentially replace during first inspection and maintenance.

Refrigeration Oil Control Standards

Standards for mineral oil regarding color, acid value, viscosity, etc.

Exterior Equipment Disassembly;Assembly

Steps for removing and attaching external components like hoses, oil coolers, and flywheels.

Oil Cooler and Mechanical Lock Procedures

Precautions for removing oil cooler piping, mechanical lock, and attaching flywheel.

Suction;Discharge Area Components

Steps for removing and attaching components in the suction and discharge areas.

Shut-off Valve and Discharge Manifold Procedures

Procedures and safety warnings for removing/attaching shut-off valves and discharge manifolds.

Head Cover and Hand Hole Cover Procedures

Steps for removing and attaching head covers and hand hole covers.

Head Jacket and Head Cover Removal

Procedure and safety warnings for removing head jacket and head covers.

Hand Hole Cover Removal and Attachment

Procedure and safety warnings for removing and attaching the hand hole cover.

Head Cover Attachment Procedures

Procedure and safety warnings for attaching the head cover.

Head Jacket Cover Attachment

Procedure and safety warnings for attaching the head jacket cover.

Valve Plate, Piston, and Cylinder Sleeve Assembly

Steps for assembling valve plates, pistons, and cylinder sleeves.

Spacer, Valve Plate, and Piston Assembly Procedures

Procedures for attaching spacer, removing valve plate, and removing piston assembly.

Cylinder Sleeve and Piston Assembly Procedures

Procedures for attaching cylinder sleeve and piston assemblies, noting rod direction.

Suction Plate Valve;Spring and Valve Plate Assembly

Procedures for attaching suction plate valve/spring and valve plate.

Spacer Removal Procedure

Steps for removing the spacer from the unloader mechanism.

Unloader Component Procedures

Steps for removing and attaching unloader components.

Unloader Push Rod Washer and Assembly

Details on unloader push rod washers and assembly of the solenoid valve unloader cover.

Seal Cover, Mechanical Seal, and Oil Seal Procedures

Steps for removing and attaching seal cover, mechanical seal, and oil seal.

Seal Cover, Oil Seal Retainer, and Oil Seal Procedures

Procedures for removing seal cover, oil seal retainers, and oil seal, and assembling oil seal.

Mechanical Seal Collar and Seal Cover Assembly

Procedures for assembling mechanical seal collar and seal cover.

Main Bearing Head, Oil Pump, and Oil Filter Assembly

Steps for removing and assembling main bearing head, oil pump, and oil filter.

Main Bearing Head Assembly Procedures (Pump Side)

Procedures and safety warnings for removing and assembling the main bearing head assembly.

Crankshaft Removal and Assembly

Steps for removing and assembling the crankshaft.

Crankshaft Removal Details

Detailed procedure and safety warnings for removing the crankshaft.

Thrust Roller Bearing Assembly (Shaft Side)

Procedure for assembling the thrust roller bearing on the shaft side.

Crankshaft Assembly Details

Procedure and safety warnings for assembling the crankshaft.

Bearing Head Component Procedures

Steps for removing and assembling the bearing head components.

Bearing Head Removal and Thrust Bearing Assembly

Procedures for removing bearing head and assembling thrust bearing.

Main Bushing Replacement (Bearing Head)

Instruction to contact service center for main bushing replacement.

Bearing Head Assembly Procedures

Procedure and safety warnings for assembling the bearing head.

Discharge Valve Cage Assembly

Steps for assembling the discharge valve cage and spring.

Piston Assembly Procedures

Steps for assembling piston, piston pin, and piston rings.

Connecting Rod Bushing and Piston Ring Assembly

Procedures for assembling connecting rod bushing and piston rings.

Cylinder Sleeve and Cam Ring Assembly

Steps for assembling the cylinder sleeve and cam ring.

Seal Cover Assembly and Bellows Oil Sleeve Removal

Steps for assembling seal cover and removing bellows oil sleeve.

Mechanical Seal Mating Ring and Bellows Oil Sleeve Attachment

Procedures for attaching mechanical seal mating ring and bellows oil sleeve.

Main Bearing Head Assembly Procedures (Pump Side)

Steps for assembling main bearing head and thrust washer, with notes on main bushing replacement.

Oil Filter Assembly

Steps for assembling the oil filter.

6 Troubleshooting

Troubleshooting Guide: Motor Issues

Troubleshooting steps for when the motor fails to start or operate.

Troubleshooting: Motor Stops After Starting

Causes and solutions for the motor stopping shortly after startup.

Troubleshooting: Abnormal High Pressure

Troubleshooting for high pressure conditions in the compressor.

Troubleshooting: Low Discharge and High Suction Pressure

Troubleshooting for low discharge pressure and excessive suction pressure.

Troubleshooting: Low Suction Pressure and Abnormal Noise

Troubleshooting for low suction pressure and abnormal noises during operation.

Troubleshooting: Overheated Crankcase

Diagnosing and resolving issues related to crankcase overheating.

Troubleshooting: Excessive Oil Consumption

Troubleshooting causes and solutions for high oil consumption.

Troubleshooting: Insufficient Cooling

Diagnosing and rectifying issues when the compressor does not provide adequate cooling.

7 Related Documents

Component Views and Part Lists

Visual representations and part numbers for compressor components.

Tightening Torques for Bolts and Nuts

Specifies tightening torques for various bolts and nuts used in the compressor.

Tools for Disassembly

Lists necessary tools for disassembling and maintaining the compressor.

Vibration Data and Standards

Standard vibration values, measurement criteria, and tables for compressor performance.

Sound Data Measurement

Measurement conditions and sound data for different compressor models.

Heat Rejection Data (OHR;JHR)

Graphs showing heat rejection data for various operating conditions.

Starting Torque Characteristics

Graphs and tables showing starting torque characteristics for different suction pressures.

Parts Inspection and Replacement: Filters and Crankshaft

Guidelines for inspecting and replacing filters, strainers, and crankshaft components.

Parts Inspection: Cylinder Sleeve and Valves

Inspection standards for cylinder sleeve wear and valve seat dimensions.

Mechanical Seal Inspection

Inspection procedures for mechanical seal components.

Parts Inspection: Piston, Pin, and Ring

Inspection standards for piston, pin, and ring dimensions and wear.

Parts Inspection: Oil Pump, Bushing, and Springs

Inspection of oil pump, main bushing, and replacement of springs.

Gasket Part List

A list of gaskets with their part numbers and quantities for different models.

Oring Part List

A list of O-rings with part numbers and quantities for different models.

Summary

Reciprocating Compressor M Series Operation Manual 4 M;6 M;8 M

CAUTION

Safety warning before operation, inspection, or servicing.

Preface

Introduces the manual and its purpose for safe and effective use.

Warranty and Disclaimer

Warranty and Disclaimer Clauses

Details warranty conditions and lists disclaimer clauses for product liability.

Important Information

Intended Use and Safe Operation

Specifies intended applications, personnel, and critical safety rules.

About This Manual

Manual Overview and Structure

Provides manual language, copyright, availability, and chapter structure.

Inquiry

Contact Information for Inquiries

Contact details for Mayekawa offices for further assistance.

Revision Description

Revision History

Records changes made in different editions of the manual.

1 Safety

Observation and Prevention Guidelines

Guidelines and precautions for safe observation and prevention during operation.

Warnings and Safety Labels

Explains warning symbols and describes safety labels affixed to the compressor.

Remaining Hazards and Countermeasures

Identifies potential hazards and necessary countermeasures during operation and maintenance.

Safety Devices Overview

Details safety devices like emergency stop, breakers, and lockout/tagout for protection.

Drive Section Guards

Purpose and installation of guards for the drive section (belt/coupling).

Safety Relief Valve

Function, installation, and settings of the safety relief valve.

Automatic Control and Protection Equipment

Overview of oil pressure, high pressure, and low pressure protection systems.

Cooling Fluid Temperature Alarm and Oil Heater Switch

Function and testing of cooling fluid alarm and oil heater/thermoswitch.

Material Safety Data Sheet (MSDS) Example

MSDS Example for Chemical Substances

Template for MSDS detailing hazards and handling of chemical substances.

2 Configuration and Specification of Compressor

Compressor Configuration Overview

Overview of the compressor's main components and their arrangement.

Cross-Sectional Views

Cross-sectional diagrams showing the internal assembly of the compressor.

Oil Supply Mechanism

Detailed explanation of how the compressor's lubrication system functions.

Unloader Mechanism

Explanation of the mechanism that controls compressor capacity by altering suction valve operation.

Compressor Specifications

Detailed technical specifications including dimensions, refrigerant, and capacity.

Service Limits and Operating Ranges

Operational limits and ranges for compressor performance.

External Dimensions

Diagrams showing external dimensions of the compressor for different models.

V-belt Selection Guide

Guidelines for selecting the appropriate V-belt based on motor specifications.

3 Installation

Installation Safety Precautions

Critical safety measures to be followed during compressor installation.

Installation Works: Unpacking, Storage, and Transfer

Procedures for unpacking, storing, transferring, and lifting the compressor safely.

Preparation for Installation: Space and Utilities

Requirements for installation space, illumination, ventilation, and piping.

Installation Procedures

General installation steps including surface checks, oil return, and protection switches.

Centering and V;C-belt Attachment

Procedures for aligning compressor/driving machine and attaching V-belts.

Coupling Alignment and Installation

Procedures for aligning shafts and installing couplings between the compressor and motor.

Piping Guidelines

Guidelines for refrigerant and cooling water piping, including support and material considerations.

Post-Installation Checks

Procedures for checking control connections, protection equipment, and refrigerant leakage.

Installation Documentation

Weight, Dimensions, and Lifting Information

Table showing weight/dimensions and diagrams for lifting compressor models.

4 Operation of the Compressor

Refrigeration Oil Properties and Selection

Information on the function, properties, and selection of refrigeration oil.

Oil Charging and Replenishment

Methods for initial oil charging and replenishment during operation.

Setting Oil Pressure

How to adjust the oil pressure to the recommended range.

Oil Quantity Check

Method for judging oil quantity via the oil sight glass.

Initial Operation Procedures

Procedures and checks for the initial startup phase, including filter maintenance.

Unloader Operation Order

Explains how the unloader mechanism controls compressor capacity based on cylinder loading.

Operation Notices: Start;Stop and Shutdown

Start/stop limitations, shutdown procedures, and restart after long stops.

5 Maintenance

Maintenance Safety Precautions

Essential safety measures before and during compressor maintenance.

Periodic Inspection Overview

Importance of recording inspections and maintenance in an operation log.

Daily Inspection Procedures

Daily checks to be performed every 2-3 hours, recorded in the operation log.

Monthly and Biannual Inspections

Monthly inspection tasks and biannual checks for gauge calibration.

Maintenance (Overhaul) Schedule

Factors influencing maintenance frequency and reference periods for first inspection/maintenance.

First Inspection and Maintenance Items

List of parts to inspect and potentially replace during first inspection and maintenance.

Refrigeration Oil Control Standards

Standards for mineral oil regarding color, acid value, viscosity, etc.

Exterior Equipment Disassembly;Assembly

Steps for removing and attaching external components like hoses, oil coolers, and flywheels.

Oil Cooler and Mechanical Lock Procedures

Precautions for removing oil cooler piping, mechanical lock, and attaching flywheel.

Suction;Discharge Area Components

Steps for removing and attaching components in the suction and discharge areas.

Shut-off Valve and Discharge Manifold Procedures

Procedures and safety warnings for removing/attaching shut-off valves and discharge manifolds.

Head Cover and Hand Hole Cover Procedures

Steps for removing and attaching head covers and hand hole covers.

Head Jacket and Head Cover Removal

Procedure and safety warnings for removing head jacket and head covers.

Hand Hole Cover Removal and Attachment

Procedure and safety warnings for removing and attaching the hand hole cover.

Head Cover Attachment Procedures

Procedure and safety warnings for attaching the head cover.

Head Jacket Cover Attachment

Procedure and safety warnings for attaching the head jacket cover.

Valve Plate, Piston, and Cylinder Sleeve Assembly

Steps for assembling valve plates, pistons, and cylinder sleeves.

Spacer, Valve Plate, and Piston Assembly Procedures

Procedures for attaching spacer, removing valve plate, and removing piston assembly.

Cylinder Sleeve and Piston Assembly Procedures

Procedures for attaching cylinder sleeve and piston assemblies, noting rod direction.

Suction Plate Valve;Spring and Valve Plate Assembly

Procedures for attaching suction plate valve/spring and valve plate.

Spacer Removal Procedure

Steps for removing the spacer from the unloader mechanism.

Unloader Component Procedures

Steps for removing and attaching unloader components.

Unloader Push Rod Washer and Assembly

Details on unloader push rod washers and assembly of the solenoid valve unloader cover.

Seal Cover, Mechanical Seal, and Oil Seal Procedures

Steps for removing and attaching seal cover, mechanical seal, and oil seal.

Seal Cover, Oil Seal Retainer, and Oil Seal Procedures

Procedures for removing seal cover, oil seal retainers, and oil seal, and assembling oil seal.

Mechanical Seal Collar and Seal Cover Assembly

Procedures for assembling mechanical seal collar and seal cover.

Main Bearing Head, Oil Pump, and Oil Filter Assembly

Steps for removing and assembling main bearing head, oil pump, and oil filter.

Main Bearing Head Assembly Procedures (Pump Side)

Procedures and safety warnings for removing and assembling the main bearing head assembly.

Crankshaft Removal and Assembly

Steps for removing and assembling the crankshaft.

Crankshaft Removal Details

Detailed procedure and safety warnings for removing the crankshaft.

Thrust Roller Bearing Assembly (Shaft Side)

Procedure for assembling the thrust roller bearing on the shaft side.

Crankshaft Assembly Details

Procedure and safety warnings for assembling the crankshaft.

Bearing Head Component Procedures

Steps for removing and assembling the bearing head components.

Bearing Head Removal and Thrust Bearing Assembly

Procedures for removing bearing head and assembling thrust bearing.

Main Bushing Replacement (Bearing Head)

Instruction to contact service center for main bushing replacement.

Bearing Head Assembly Procedures

Procedure and safety warnings for assembling the bearing head.

Discharge Valve Cage Assembly

Steps for assembling the discharge valve cage and spring.

Piston Assembly Procedures

Steps for assembling piston, piston pin, and piston rings.

Connecting Rod Bushing and Piston Ring Assembly

Procedures for assembling connecting rod bushing and piston rings.

Cylinder Sleeve and Cam Ring Assembly

Steps for assembling the cylinder sleeve and cam ring.

Seal Cover Assembly and Bellows Oil Sleeve Removal

Steps for assembling seal cover and removing bellows oil sleeve.

Mechanical Seal Mating Ring and Bellows Oil Sleeve Attachment

Procedures for attaching mechanical seal mating ring and bellows oil sleeve.

Main Bearing Head Assembly Procedures (Pump Side)

Steps for assembling main bearing head and thrust washer, with notes on main bushing replacement.

Oil Filter Assembly

Steps for assembling the oil filter.

6 Troubleshooting

Troubleshooting Guide: Motor Issues

Troubleshooting steps for when the motor fails to start or operate.

Troubleshooting: Motor Stops After Starting

Causes and solutions for the motor stopping shortly after startup.

Troubleshooting: Abnormal High Pressure

Troubleshooting for high pressure conditions in the compressor.

Troubleshooting: Low Discharge and High Suction Pressure

Troubleshooting for low discharge pressure and excessive suction pressure.

Troubleshooting: Low Suction Pressure and Abnormal Noise

Troubleshooting for low suction pressure and abnormal noises during operation.

Troubleshooting: Overheated Crankcase

Diagnosing and resolving issues related to crankcase overheating.

Troubleshooting: Excessive Oil Consumption

Troubleshooting causes and solutions for high oil consumption.

Troubleshooting: Insufficient Cooling

Diagnosing and rectifying issues when the compressor does not provide adequate cooling.

7 Related Documents

Component Views and Part Lists

Visual representations and part numbers for compressor components.

Tightening Torques for Bolts and Nuts

Specifies tightening torques for various bolts and nuts used in the compressor.

Tools for Disassembly

Lists necessary tools for disassembling and maintaining the compressor.

Vibration Data and Standards

Standard vibration values, measurement criteria, and tables for compressor performance.

Sound Data Measurement

Measurement conditions and sound data for different compressor models.

Heat Rejection Data (OHR;JHR)

Graphs showing heat rejection data for various operating conditions.

Starting Torque Characteristics

Graphs and tables showing starting torque characteristics for different suction pressures.

Parts Inspection and Replacement: Filters and Crankshaft

Guidelines for inspecting and replacing filters, strainers, and crankshaft components.

Parts Inspection: Cylinder Sleeve and Valves

Inspection standards for cylinder sleeve wear and valve seat dimensions.

Mechanical Seal Inspection

Inspection procedures for mechanical seal components.

Parts Inspection: Piston, Pin, and Ring

Inspection standards for piston, pin, and ring dimensions and wear.

Parts Inspection: Oil Pump, Bushing, and Springs

Inspection of oil pump, main bushing, and replacement of springs.

Gasket Part List

A list of gaskets with their part numbers and quantities for different models.

Oring Part List

A list of O-rings with part numbers and quantities for different models.

MAYEKAWA 4M Specifications

General

Brand	MAYEKAWA
Model	4M
Category	Air Compressor
Language	English

Related product manuals

MAYEKAWA 4M - User Manual

Table of Contents

Questions and Answers

Summary

Reciprocating Compressor M Series Operation Manual 4 M;6 M;8 M

CAUTION

Preface

Preface

Warranty and Disclaimer

Warranty and Disclaimer Clauses

Important Information

Intended Use and Safe Operation

About This Manual

Manual Overview and Structure

Inquiry

Contact Information for Inquiries

Revision Description

Revision History

1 Safety

Observation and Prevention Guidelines

Warnings and Safety Labels

Remaining Hazards and Countermeasures

Safety Devices Overview

Drive Section Guards

Safety Relief Valve

Automatic Control and Protection Equipment

Cooling Fluid Temperature Alarm and Oil Heater Switch

Material Safety Data Sheet (MSDS) Example

MSDS Example for Chemical Substances

2 Configuration and Specification of Compressor

Compressor Configuration Overview

Cross-Sectional Views

Oil Supply Mechanism

Unloader Mechanism

Compressor Specifications

Service Limits and Operating Ranges

External Dimensions

V-belt Selection Guide

3 Installation

Installation Safety Precautions

Installation Works: Unpacking, Storage, and Transfer

Preparation for Installation: Space and Utilities

Installation Procedures

Centering and V;C-belt Attachment

Coupling Alignment and Installation

Piping Guidelines

Post-Installation Checks

Installation Documentation

Weight, Dimensions, and Lifting Information

4 Operation of the Compressor

Refrigeration Oil Properties and Selection

Oil Charging and Replenishment

Setting Oil Pressure

Oil Quantity Check

Initial Operation Procedures

Unloader Operation Order

Operation Notices: Start;Stop and Shutdown

5 Maintenance

Maintenance Safety Precautions

Periodic Inspection Overview

Daily Inspection Procedures

Monthly and Biannual Inspections

Maintenance (Overhaul) Schedule

First Inspection and Maintenance Items

Refrigeration Oil Control Standards

Exterior Equipment Disassembly;Assembly

Oil Cooler and Mechanical Lock Procedures

Suction;Discharge Area Components

Shut-off Valve and Discharge Manifold Procedures

Head Cover and Hand Hole Cover Procedures

Head Jacket and Head Cover Removal

Hand Hole Cover Removal and Attachment

Head Cover Attachment Procedures

Head Jacket Cover Attachment

Valve Plate, Piston, and Cylinder Sleeve Assembly

Spacer, Valve Plate, and Piston Assembly Procedures

Cylinder Sleeve and Piston Assembly Procedures

Suction Plate Valve;Spring and Valve Plate Assembly

Spacer Removal Procedure

Unloader Component Procedures