MSS
TM
Series
© Copyright 2022 Fluid Equipment Development Company | www.fedco-usa.com
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Item Description
1 Diuser Bearing
2 Floating Neck Ring
3 Diuser
4 Clamping Neck Ring
5 Split Cone Nut
6 Impeller
7 Split Cone
Figure 106 - End Shell Bolt Removal
Stage Replacement (MSS-40/55/75)
TOOLS REQUIRED: Gage block, Shaft wrench or Strap wrench, Torque wrench.
NOTES: Consult a FEDCO representative for all information regarding assembly specications.
ELECTRICAL HAZARD
Make sure to disconnect the power supply to the motor before carrying out component replace-
ment procedures. Follow all Lock out/Tag out procedures developed by your company before
starting any maintenance or repair.
Stage Removal
1. Follow the steps in Stage
Replacement Preparation in the Stage
Replacement (MSS-15/20/30/50/70) section
of this manual.
2. For:
Single Shell Pumps:
Remove the end shell ange bolts from the
inlet ange and safely remove end shell
using safe lifting and handling methods.
Remove the inlet O-ring.
Two Shell Pumps:
Remove the end shell ange bolts from the
series shell ange and safely remove end
shell using safe lifting and handling methods.
Remove the series shell O-ring.
Figure 107 - MSS-40/55/75 Stage Components
Pump Overhaul Continued