35
8.2
DISMANTLING 163 COMPRESSOR FOR MAJOR OVERHAUL (Continued)
Repeat the procedure on both rotors. If there is any doubt about the clearance of a bearing, renew
the bearing.
As the inlet end bearings are more lightly loaded they then only require to be inspected if the outlet
end bearings require to be replaced.
Compressor
Size
Drawing
Clearance
mm
Drawing
Clearance
inches
Maximum
Allowable
Clearance
163
0.070/0.1102
0.0028
”/0.0043”
0.150mm/0.006”
Fig. 35 WRV163 Bearing Journal Clearances
Carry on the dismantling procedure by unlocking the lockwashers and locknuts securing the thrust
bearings (Figs.36 & 37) and remove. The adjusting ring behind the thrust bearing has threaded
extensions which enable the ring to be extracted by the use of jacking screws, the operation of
jacking out the adjusting ring withdraws the thrust bearing with it (Figs. 37-39).
Fig. 36
Fig. 37
Fig. 38
Fig. 39
Summary of Contents for WRV
Page 1: ...WRV WRVi COMPRESSOR RANGE SERVICE MANUAL...
Page 3: ...2 SECTION 1 FOREWORD...
Page 5: ...4 HOWDEN SECTION 2 DESCRIPTION...
Page 10: ...9 SECTION 3 INSTALLATION...
Page 14: ...13 SECTION 4 FIRST START UP...
Page 16: ...15 SECTION 5 NORMAL OPERATION...
Page 18: ...17 SECTION 6 PROCEDURES DURING SHUTDOWN...
Page 20: ...19 SECTION 7 MAINTENANCE...
Page 33: ...32 SECTION 8 OVERHAUL...
Page 50: ...49 SECTION 9 SPECIAL INSTRUCTIONS...
Page 57: ...56 SECTION 10 SPARES...
Page 64: ...63 Printed in the UK Issue HCL September 2012 Howden Compressors Limited...