INDEX TO SECTIONS
Page Number
SECTION 1 FOREWORD 2
SECTION 2 DESCRIPTION 4
2.1 The WRV / WRVi Compressor 5
2.2 Compression Cycle 6
2.3 Gas System 7
2.4 Oil System 7
2.5 Oils 8
SECTION 3 INSTALLATION 9
3.1 Alignment of Compressor Couplings 10
3.2 Alignment Tolerance 11
3.3 Dowelling 12
3.4 Piping 12
SECTION 4 FIRST START UP 13
4.1 First Start 14
SECTION 5 NORMAL OPERATION 15
5.1 Normal Start 16
5.2 Normal Stop 16
SECTION 6 PROCEDURES DURING SHUT DOWN 17
6.1 Procedure on Shut Down 18
6.2 Inhibiting Oils 18
SECTION 7 MAINTENANCE 19
7.1 General Comments 20
7.2 Preparation for Annual Inspection 21
7.3 Dismantling Procedure for Annual Inspection 21
7.4 Checking Clearances 28
Guide Block 28
Thrust Bearing 29
7.5 Re-assembly after Annual Inspection 30
SECTION 8 OVERHAUL 32
8.1 General Procedure 33
8.2 Dismantling 163 Compressor for Major Overhaul 34
8.3 Re-assembly 163 Compressor after Overhaul 38
Rotor to Main Casing Outlet End Clearance 39
8.4 Dismantling 204, 255 & 321 Compressors for
Major Overhaul 41
Journal Bearing Clearances 42
Rotor Weights 45
8.5 Re-assembly 204, 255 & 321 Compressors after
Overhaul 46
Thrust Bearing Nip 46
Rotor to Main Casing Outlet End Clearance 47
SECTION 9 SPECIAL INSTRUCTIONS 49
9.1 Torque Specifications 50
9.2 Procedure for Fitting Lockwashers 53
9.3 Special Tool List 54
SECTION 10 SPARES 56
10.1 Recommended Spares List 57
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