mycom i125S Instruction Manual page 9

4.2.2 Purging of Non-Condensable Gases ................................................................... 4-4
4.2.3 Action for Stopping the Compressor for Long Period of Time ............................. 4-5
Chapter 5 Maintenance and Inspection
5.1 Precautions for Maintenance and Inspection ............................................ 5-1
5.2 Maintenance and Inspection List................................................................ 5-2
5.2.1 Daily Management ............................................................................................... 5-2
5.2.2 Periodical Inspection ............................................................................................ 5-4
5.2.3 Guidelines for Compressor Overhaul Frequency ................................................ 5-5
5.3 Management of Lubricant ........................................................................... 5-6
5.3.1 Lubricant Management Criteria ........................................................................... 5-6
5.3.2 Lubricant Replacement Frequency ...................................................................... 5-6
5.4 Compressor Disassembly Preparation ...................................................... 5-7
5.4.1 Tools for Disassembly ......................................................................................... 5-7
5.4.2 Replacement Parts .............................................................................................. 5-8
5.4.3 Refrigerant Gas Treatment .................................................................................. 5-8
5.4.3.1
5.4.3.2
5.4.4 Removing Parts Connected to the Unit ............................................................... 5-9
5.4.5 Removing and Lifting the Compressor .............................................................. 5-10
5.4.6 Removing Oil from Compressor ........................................................................ 5-10
5.5 Disassembly and Inspection ..................................................................... 5-11
5.5.1 Mechanical seal ................................................................................................. 5-11
5.5.1.1
5.5.1.2
5.5.2 Bearing Cover .................................................................................................... 5-13
5.5.2.1
5.5.2.2 Inspection ................................................................................................... 5-13
5.5.3 Balance Piston ................................................................................................... 5-14
5.5.3.1
5.5.3.2
5.5.4 End Cover .......................................................................................................... 5-14
5.5.5 Thrust Bearings ................................................................................................. 5-14
5.5.5.1
5.5.5.2
5.5.6 Bearing Head ..................................................................................................... 5-16
5.5.6.1
5.5.6.2
5.5.7 Rotors ................................................................................................................ 5-16
5.5.7.1
5.5.7.2
5.5.8 Radial Bearing ................................................................................................... 5-17
5.5.8.1
5.5.8.2
5.5.9 Suction Strainer and Check Valve ..................................................................... 5-17
Screw Compressor i-series
Valves Used ................................................................................................. 5-8
Refrigerant Gas Recovery ........................................................................... 5-8
Disassembly ...............................................................................................5-11
Inspection .................................................................................................. 5-12
Disassembly .............................................................................................. 5-13
Disassembly .............................................................................................. 5-14
Inspection .................................................................................................. 5-14
Disassembly .............................................................................................. 5-15
Inspection .................................................................................................. 5-15
Disassembly .............................................................................................. 5-16
Inspection .................................................................................................. 5-16
Disassembly .............................................................................................. 5-16
Inspection .................................................................................................. 5-16
Disassembly .............................................................................................. 5-17
Inspection .................................................................................................. 5-17
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2200M4JE-DA-iS2-N_2014.04.
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