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mycom 2016LMC

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2200LZJE-HO-C6-N_2013.12.
Compound 2-stage Screw
Compressor
2016**C Instruction Manual
2016LLC / 2016LMC / 2016LSC
/ 2016MSC / 2016SSC
ATTENTION
Before operating, servicing, or inspecting this product, read this manual thoroughly to
fully understand the contents.
Keep this Instruction Manual in a safe, designated place for future reference whenever
the manual is needed.
Specifications of this product is subject to change without prior notice.

Table of Contents

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mycom 2016LMC Specifications

General IconGeneral
Brandmycom
Model2016LMC
CategoryAir Compressor
LanguageEnglish

Summary

Warranty and Disclaimer Information

Warranty Clauses

Outlines the terms and conditions of the product warranty.

Disclaimer Clauses

Lists conditions that exclude Mayekawa's liability for product damages.

Important Information for Safe Use

Safety Precautions

Provides crucial safety rules and precautions for operating the product.

Chapter 1 Safety Guidelines

Observation and Prevention (DOs and DONTs)

Essential guidelines and practices for safe operation and maintenance.

Safety Warnings and Information

Understanding Warning Symbols

Explains warning symbols and messages to alert users about potential dangers.

Residual Risks and Countermeasures

Hazardous Sources and Mitigation

Identifies potential hazards and necessary countermeasures during operation and maintenance.

Safety Devices and Features

Emergency Stop and Protective Devices

Describes essential safety features like emergency stop buttons and protective devices.

Compressor Protective Devices

Types and Functions of Protective Devices

Details various protective devices that safeguard the compressor during operation.

Compressor Operation Limits

Defined Operation Limits

Defines the operational limits for temperature, pressure, and rotation speed.

Chapter 3 Installation Procedures

General Installation Precautions

Provides essential safety and procedural advice before installing the compressor.

Installation Works Overview

Outlines the steps involved in the installation process, including unpacking and transfer.

Compressor Installation Process

Mounting and Piping Connection

Instructions for physically mounting the compressor and connecting piping.

Post-Installation Checks

Lubricant Charging Instructions

Instructions for filling the compressor with the correct type and amount of lubricant.

Chapter 4 Compressor Operation

Lubricant (Refrigerant Oil) Management

Guidelines for selecting and managing lubricant for optimal compressor performance.

Lubricant Selection Precautions

Key considerations when choosing the appropriate lubricant for the compressor.

Recommended Lubricants and Handling

Recommended Lubricant List

Lists recommended lubricants for ammonia and HFC refrigerants.

Operational Precautions and Procedures

General Operation Precautions

Critical operational precautions to ensure safe and efficient compressor use.

Preventing Liquid Flow-back

Measures to prevent liquid refrigerant from returning to the compressor.

Purging Non-Condensable Gases

Procedure to check for and remove non-condensable gases to maintain efficiency.

Chapter 5 Maintenance Guidelines

Pre-Maintenance Safety Precautions

Essential safety precautions and general guidelines before performing maintenance.

Compressor Maintenance Schedule

Daily Inspection and Management Items

A list of inspection items and actions for daily compressor management.

Periodic Compressor Inspections

Periodical Inspection Schedule and Items

Details the schedule and items for periodic inspections of the compressor.

Compressor Overhaul Frequency Guidelines

Recommended Overhaul Intervals

Recommendations for compressor overhaul intervals based on operating conditions.

Lubricant Management Criteria

Lubricant Quality Management

Criteria and procedures for managing lubricant quality and condition.

Lubricant Replacement Frequency

Compressor Disassembly Preparation

Pre-Disassembly Safety and Preparations

Essential preparations and safety measures before disassembling the compressor.

Disassembly Tools and Site Requirements

Compressor Removal and Oil Drainage

Compressor Disassembly Sequence

Illustrated Disassembly Steps

Provides an example sequence for disassembling the compressor and its parts.

Compressor Overhaul Procedures

General Overhaul Precautions

General precautions and considerations for performing compressor overhaul.

Mechanical Seal Maintenance

Unloader Indicator Maintenance

Unloader Cylinder Cover Maintenance

Unloader Piston and Cylinder Maintenance

Bearing Cover Maintenance

Stage Separation and Gear Coupling

High-stage Thrust Bearing Maintenance

Balance Piston and Unloader Cylinder Maintenance

High-stage Suction Cover and Bearings

High-stage Rotor Removal

High-stage Bearing Head and Main Bearings

Low-stage Thrust Bearings

Low-stage Gear Coupling

Low-stage Suction Cover and Bearings

Low-stage Rotors and Bearing Heads

Low-stage Unloader Valve Maintenance

Chapter 5 Reassembly Procedures

General Reassembly Precautions

General precautions and procedures for reassembling the compressor after maintenance.

Low-stage Unloader Assembly

Bearing Head and Main Bearings Assembly

Bearing Head and Rotor Casing Assembly

Rotor Installation Procedure

Suction Cover and Side Bearings Assembly

Thrust Bearings Assembly and Adjustment

End Clearance Measurement

Measuring End Clearance

Procedures for measuring and verifying end clearance after thrust bearing replacement.

End Clearance Adjustment Procedure

Adjusting End Clearance Values

Detailed steps for adjusting end clearance when it falls outside specified values.

Final Tightening and Bearing Cover Attachment

High-stage and Low-stage Assembly

Balance Piston and Unloader Cylinder Assembly

Low-stage Unloader Cylinder Assembly

Mechanical Seal Assembly

Unloader Cylinder Cover Assembly

Unloader Indicator Assembly and Components

Potentiometer Assembly and Inspection

Chapter 6 Troubleshooting Guide

Troubleshooting Table Overview

A table listing common compressor symptoms, direct causes, root causes, and actions.

Troubleshooting Compressor Startup Issues

Compressor Stops Immediately After Startup

Addresses issues causing the compressor to stop shortly after starting.

Troubleshooting Pressure Issues

Troubleshooting High Pressure and Temperature

Troubleshooting High Discharge Temperature

Mechanical Seal Leak Troubleshooting

Resolving Mechanical Seal Leaks

Diagnosing and resolving leaks from the mechanical seal.

Troubleshooting Noise and Control Issues

Capacity Control Malfunction Troubleshooting

Diagnosing Capacity Control Malfunctions

Troubleshooting steps for malfunctions in the capacity control system.

Troubleshooting Vibration and Sound

Resolving Abnormal Vibration and Sound

Diagnosing and resolving abnormal vibration or noise from the compressor.

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