mycom 1612LSC series Manuals

Manuals and User Guides for mycom 1612LSC series. We have 1 mycom 1612LSC series manual available for free PDF download: Instruction Manual

mycom 1612LSC series Instruction Manual

mycom 1612LSC series Instruction Manual (145 pages)

compound 2-stage screw compressor, speed increaser type

Brand: mycom | Category: Air Compressor | Size: 7 MB

Table of Contents

Instruction Manual
1
Important Information
4
About this Manual
5
Table of Contents
6
Safety

11
- Strict Requirements and Prohibitions
  
  11
  - Strict Requirements (Do's)
    11
    
    Do's on Lockout/Tagout after Shutting off the Power
    11
    
    Do's on Maintenance
    11
    
    Do's on Operation
    11
    
    Do's about Handling Emergency Situations
    12
    
    Do's about Personal Protective Gear
    12
    
    Do's about the Handling of Hazardous and Toxic Substances
    12
    
    Do's about Waste Oil, Fluid, and Materials
    12
    
    Other Do's
    12
  - Prohibitions (Don'ts)
    13
- Warnings
  
  13
- Residual Risks
  
  14
- Safety Devices
  
  16
  - Emergency Stop Button
    16
- 2.1 Overview of the Compound 2-Stage Screw Compressor
  
  17
  - Compressor Protection Devices
    17
- Model Designation of the Compressor
  
  19
- Compressor Specifications
  
  20
  - Standard Specifications
    20
  - Operation Limits
    21
  - Outer Dimensions
    22
- Structure of Compressor
  
  23
  - Mechanisms
    24
    
    Basics of the Screw Compressor
    24
    
    Suction Process
    24
    
    About Volume Ratio (VI)
    25
    
    Compression Process
    25
    
    Discharge Process
    25
    
    Bearings and Balance Piston
    27
    
    Capacity Control Mechanism
    27
    
    Shaft Seal
    27
  - Gas and Oil Flow
    28
- Installation
  
  29
  - General Precautions for Installation
    29
  - Installation Works
    29
    
    Storage
    29
    
    Transportation
    29
    
    Unpacking
    29
    
    Preparation for Installation
    32
    
    Installation
    33
    
    Shaft Alignment between Compressor and Driving Machine
    33
    
    Equipment and Devices for Protection of the Compressor
    34
    
    Piping Connection
    34
    
    Additional Charge of Lubricating Oil
    35
    
    Airtightness Test
    35
    
    Charge of Refrigerant
    35
    
    Check after Installation
    35
    
    Initial Charge of Lubricating Oil
    35
    
    Lubricating Oil Charge
    35
- Compressor and Package Unit Operation
  
  36
  - Lubricating Oil (Refrigerant Oil)
    36
    
    Precautions for Selecting the Lubricating Oil
    36
    
    Recommended Lubricating Oils
    36
    
    Recommended Lubricating Oils for Ammonia Refrigerant
    36
    
    Oils for Systems Using Hydrofluorocarbon (HFC) Refrigerants
    37
    
    Change of Lubricating Oil Brand
    38
    
    Precautions for Handling Lubricating Oil
    39
    
    Precautions for Handling Polyalkylene Glycol (PAG)
    39
    
    Precautions for Handling Polyolester (POE) Oil
    39
    
    Lubricating Oil Management Criteria
    40
    
    After Starting the Initial Operation
    41
    
    During Normal Operation
    41
    
    Lubricating Oil Replacement Timing
    41
Compound 2-Stage Screw Compressor 1612LSC Speed Increaser Type

42
- Precautions for Operation
  42
- Maintenance and Inspection Precautions for Maintenance and Inspection
  
  44
- 5.1 Precautions for Maintenance and Inspection
  
  46
  - Maintenance and Inspection List
    46
    
    Daily Management
    46
    
    Periodic Inspection
    48
    
    Guidelines for the Timing of Compressor Overhaul
    49
  - Compressor Disassembly Preparation
    50
    
    Disassembly Tools and Workplace
    50
    
    Replacement Parts
    50
    
    Refrigerant Gas Recovery
    53
    
    Removing Parts Connected to the Unit
    54
    
    Compressor Removing and Lifting
    55
    
    Removing Oil from Inside the Compressor
    55
  - Disassembly and Inspection
    56
    
    Disassembly
    58
    
    Shaft Seal Block
    58
    
    Inspection
    59
    
    Unloader Indicator
    60
    
    Disassembly
    61
    
    Inspection
    62
    
    Disassembly
    63
    
    Inspection
    63
    
    Unloader Cover
    63
    
    Disassembly
    64
    
    Inspection
    64
    
    Unloader Piston and Unloader Cylinder
    64
    
    Disassembly
    65
    
    Speed Increaser Gear Casing Cover
    65
    
    Disassembly
    66
    
    Speed Increaser Gear Casing Block
    66
    
    Inspection
    69
    
    Disassembly
    70
    
    Separating High-Stage and Low-Stage
    70
    
    Disassembly
    71
    
    Gear Coupling
    71
    
    Inspection
    71
    
    Balance Piston
    72
    
    Balance Piston Cover
    72
Compound 2-Stage Screw Compressor 1612LSC Speed Increaser Type

73
- Inspection
  73
- High-Stage Suction Cover and Side Bearings
  74
  - Disassembly
    74
  - Inspection
    74
  - Low-Stage Suction Cover and Side Bearings
    75
    
    Disassembly
    75
    
    Inspection
    76
  - Thrust Bearings Block
    77
    
    Disassembly of High-Stage Thrust Bearing Block
    77
    
    Disassembly of Low-Stage Thrust Bearing Block
    78
    
    Inspection (High-Stage/Low-Stage)
    79
  - High-Stage Rotors and Main Rotor Casing
    80
    
    Disassembly
    80
    
    Inspection
    80
  - Low-Stage Rotors and Main Rotor Casing
    81
  - High-Stage Bearing Head and Main Bearings
    82
    
    Disassembly
    82
    
    Inspection
    82
  - Low-Stage Bearing Head and Main Bearings
    83
    
    Disassembly
    83
    
    Inspection
    83
  - Low-Stage Unloader Slide Valve and Guide Block
    84
    
    Disassembly
    84
    
    Inspection
    84
- Reassembly
  
  85
  - Low-Stage Unloader Slide Valve and Guide Block
    87
  - Bearing Head and Rotor Casing
    88
  - Bearing Head and Main Bearings
    89
  - Rotor Assembly
    90
  - Suction Cover and Side Bearings
    91
  - Thrust Bearing Block
    93
    
    End Clearance Measurement
    95
    
    End Clearance Adjustment Method
    97
    
    Tightening after End Clearance Adjustment
    97
  - Combining High-Stage and Low-Stage Blocks
    99
  - Balance Piston Cover
    100
  - Speed Increaser Gear Block
    101
  - Installation of Speed Increaser Gear Casing to Low-Stage Bearing Head
    104
  - Unloader Cylinder and Unloader Piston
    106
  - Unloader Cover
    108
  - Shaft Seal Block
    109
  - Unloader Indicator
    112
    
    Micro-Switch
    113
    
    Potentiometer
    113
    
    Assembly and Adjustment
    114
Troubleshooting

115
Related Documents

126
- Development Views, Assembly Sectional Views
  
  126
  - Figure 7-3 Assembly Sectional View (Vertical)
    128
  - Figure 7-4 Assembly Sectional View (Horizontal)
    129
- Parts Configuration Table
  
  130
- Tightening Torques for Bolts and Nuts
  
  134
- O-Rings for Use
  
  136
  - List of O-Rings for Use
    136
  - List of O-Ring Materials for Screw Compressor
    136
Contact Information

138
- Sales Offices in Japan
  138
- Manufacturing Bases in Japan
  138
- Global Network
  139
  - North America
    139
  - EUROPE and AFRICA
    139
  - Asia Pacific
    140
  - Latin America
    142

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