Page 159 - Practical Machinery Management for Process Plants Major Process Equipment Maintenance and Repair
P. 159

Reciprocating and Liquid Ring  kcuum Pumps   141


                    Finally, assemble the bearing brackets, bearings and seals or packing.
                  Assemble the thrust end first. At the driven end the bearing must be cen-
                  tralized in its housing. Check the end float by loosening and tightening
                  the  thrust  end  bearing cover  (item  1 in  Figure  3-14).  Measure axial
                  movement with a dial indicator on the exposed shaft end.  Adjust that
                  bearing cover so that the rotor will be held in the middle of its axial float.
   154   155   156   157   158   159   160   161   162   163   164