User Manuals: mycom 3225LLLC Two-Stage Screw Compressor

Manuals and User Guides for mycom 3225LLLC Two-Stage Screw Compressor. We have 1 mycom 3225LLLC Two-Stage Screw Compressor manual available for free PDF download: Instruction Manual

mycom 3225LLLC Instruction Manual (172 pages)

Compound 2-stage Screw Compressor

Brand: mycom | Category: Compressor | Size: 28 MB

Table of Contents
6
Chapter 1 Safety

11
Chapter 2 Compressor Specifications and Structure

19
- Overview of the 3225**C
  
  19
- Model Designation of the Compressor
  
  19
- Compressor Specifications
  
  20
  - Standard Specifications
    20
  - Operation Limits
    22
  - Outer Dimensions
    23
- Structure of Compressor
  
  35
  - Sectional View
    35
- Mechanisms
  
  36
  - Basics of the Screw Compressor
    36
  - Suction Process
    36
  - Compression Process
    37
  - Discharge Process
    37
  - About Volume Ratio (VI)
    37
  - Capacity Control Mechanism
    39
  - Bearings and Balance Piston
    39
  - Shaft Seal Block
    39
- Gas and Oil Flow
  
  40
Chapter 3 Installation

42
- General Precautions for Installation
  
  42
- Installation Works
  
  42
  - Unpacking
    42
  - Storage
    42
  - Transportation
    42
  - Preparation for Installation
    45
  - Installation
    46
    
    Shaft Alignment between the Compressor and Driving Machine
    46
    
    Piping Connection
    47
    
    Equipment and Devices for Protection of the Compressor
    47
  - Airtightness Test
    48
  - Lubricating Oil Charge
    48
    
    Initial Charge of Lubricating Oil
    48
    
    Additional Charge of Lubricating Oil
    48
  - Charge of Refrigerant
    48
  - Check after Installation
    48
Chapter 4 Compressor and Package Unit Operation

49
Chapter 5 Maintenance and Inspection

57
- Precautions for Maintenance and Inspection
  
  57
- Maintenance and Inspection List
  
  59
- Compressor Disassembly Preparation
  
  63
- Disassembly and Inspection
  
  70
  - Unloader Indicator
    71
    
    Disassembly
    71
    
    Inspection
    73
  - Unloader Cover
    74
    
    Disassembly
    74
    
    Inspection
    75
  - Unloader Piston and Unloader Cylinder
    76
    
    Disassembly
    76
    
    Inspection
    77
  - Shaft Seal Block
    78
    
    Disassembly
    78
    
    Inspection
    79
  - Bearing Cover
    80
    
    Disassembly
    80
  - Separating High-Stage and Low-Stage Blocks
    81
    
    Disassembly
    81
  - Gear Coupling
    81
    
    Inspection
    82
  - Removing Oil Injection Pipe
    83
    
    Disassembly
    83
  - Balance Piston
    84
    
    Disassembly
    84
    
    Inspection
    84
  - High-Stage Suction Cover and Side Bearings
    85
    
    Disassembly
    85
    
    Inspection
    86
  - Low-Stage Suction Cover and Side Bearings
    87
    
    Disassembly
    87
    
    Inspection
    87
  - Thrust Bearing Block
    88
    
    Disassembly of the Low-Stage Thrust Bearing Block
    89
    
    Inspection (High-Stage and Low-Stage)
    89
  - High-Stage Rotors and Main Rotor Casing
    90
    
    Disassembly
    90
    
    Inspection
    91
  - Low-Stage Rotors and Main Rotor Casing
    91
  - High-Stage Bearing Head and Main Bearings
    92
    
    Disassembly
    92
    
    Inspection
    92
  - Low-Stage Bearing Head and Main Bearings
    93
    
    Disassembly
    93
    
    Inspection
    93
- Reassembly
  
  94
  - Unloader Slide Valve and Guide Block
    96
  - Bearing Head and Main Bearings
    97
  - Bearing Head and Main Rotor Casing
    98
  - Installing the Rotors
    99
  - Suction Cover and Side Bearings
    100
  - Balance Piston Sleeve
    101
  - Installing the Suction Cover
    102
  - Thrust Bearing Block
    104
    
    End Clearance Measurement
    106
    
    End Clearance Adjustment Procedure
    107
    
    Tightening after Finishing the End Clearance Adjustment
    108
    
    Installing the Balance Piston
    109
  - Balance Piston Cover and High-Stage Unloader Cylinder
    109
  - Bearing Cover
    112
  - Shaft Seal Block
    113
  - Low-Stage Unloader Cylinder
    116
  - Unloader Cover
    117
  - Coupling the High-Stage and Low-Stage Blocks
    118
  - Unloader Indicator
    120
    
    Potentiometer
    120
    
    Micro-Switches and Micro-Switch Cam
    120
    
    Reassembly
    121
Chapter 6 Troubleshooting

124
Chapter 7 Related Documents

135
- Exploded Views, Assembly Sectional Views
  
  135
- Parts Configuration Table
  
  161
- Tightening Torques for Bolts and Nuts
  
  168
- About the O-Rings Used
  
  170
  - List of O-Rings Used
    170
  - O-Ring Materials Used for Screw Compressor
    170
- Tools for Disassembly
  
  171

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User Manuals: mycom 3225LLLC Two-Stage Screw Compressor

mycom 3225LLLC Instruction Manual (172 pages)

Table of Contents

Chapter 1 Safety

Strict Requirements and Prohibitions

Warnings

Residual Risks

Safety Devices

Chapter 2 Compressor Specifications and Structure

Overview of the 3225**C

Model Designation of the Compressor

Compressor Specifications

Structure of Compressor

Mechanisms

Gas and Oil Flow

Chapter 3 Installation

General Precautions for Installation

Installation Works

Chapter 4 Compressor and Package Unit Operation

Lubricating Oil (Refrigerant Oil)

Precautions for Operation

When Stopping the Compressor for a Long Time

Chapter 5 Maintenance and Inspection

Precautions for Maintenance and Inspection

Maintenance and Inspection List

Compressor Disassembly Preparation

Disassembly and Inspection

Reassembly

Chapter 6 Troubleshooting

Chapter 7 Related Documents

Exploded Views, Assembly Sectional Views

Parts Configuration Table

Tightening Torques for Bolts and Nuts

About the O-Rings Used

Tools for Disassembly

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