2205B0JE-DA-J-N_2014.05.
5 Maintenance and Inspection
Screw Compressor J-series 5.4 Disassembly and Assembly of the Compressor
5-63
5.4.19.1 Common Precautions for Removal/Installation
Male rotor and female rotor
Weight of rotor alone (kg)
170JS 170JM 170JL 220JS 220JM 220JL 280JS 280JM 280JL
M rotor 37 44 52 88 104 124 194 228 272
F rotor 19 23 28 46 55 67 101 121 148
If lifted inappropriately, it may cause injuries. When lifting the male rotor or
female rotor use the lifting equipment, and make sure to adopt an appropriate
method such as using lifting slings.
If the lifting equipment and lifting slings in use do not have sufficient loading
capacity, the male rotor or female rotor may fall causing injuries and damage to
the compressor. Before starting the lifting work, always check that the lifting
equipment and lifting slings have sufficient loading capacity. Do not allow
anyone to be under the lifted male rotor or female rotor.
Do not damage the rotor, the casing, or the bearing when pulling out /installing
the rotors. Suspend the rotors and pull them out horizontally.
5.4.19.2 Precautions for Removal
Unloader slide valve assembly and Vi slide valve assembly
Weight of Unloader slide valve assembly (kg)
170JS 170JM 170JL 220JS 220JM 220JL 280JS 280JM 280JL
Unloader slide
valve
10 12 13 22 24 27 47 52 59
Slide valve, Vi 7 7.5 7.8 12.2 12.7 13.3 26 27 29
If lifted inappropriately, it may cause injuries.
If it is difficult to lift them by hand, use appropriate lifting equipment.
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