Checklist For Examination Of Pump Parts; Disassemble - EBARA TH Series Operating Instructions, Installation & Maintenance Manual

Operating, Installation, and Maintenance
Maintenance
Power Supply
Turn off power to motor and disconnect power cable before servicing unit. All maintenance
should be done by qualified personnel.
DISASSEMBLY – All pump parts can be removed from casing without disturbing the piping. Remove
casing bolts, and motor mounting bolts, to slide the reminder of the pump and motor away from the
casing.
VOLUTE CASE
a) Drain pump case by removing drain plugs.
b) Remove the bolts securing volute case to pump bracket.
c) Pry volute case from casing cover.
IMPELLER
Hold the motor shaft and turn the impeller counterclockwise (as viewed from pump end).
SEAL
a) Remove the rotating part of the seal by pulling it off the shaft.
b) The stationary seat can be pressed from the casing cover.
CHECK LIST FOR EXAMINATION OF PUMP PARTS
IMPELLER - Replace the impeller if any vane is broken, excessive erosion shows, or if wear ring
surfaces are worn. Impeller cap screw, washer and lock washer should be replaced if damaged.
MECHANICAL SEAL - Seal face, O-ring and sealing members should be free of burrs and dirt.
Complete seal assembly should be replaced if not in perfect condition.
SHAFT- Shaft sleeve surface under seal must be clean, smooth and without any grooves. It should be
replaced if necessary.
VOLUTE AND SEAL PLATE WEAR RING SURFACES - If worn, replace the necessary part. If
furnished with pressed in wear rings, only the rings need be replaced.
GASKETS - Volute, suction pipe and discharge pipe gaskets should be checked for damage. Replace if
necessary.
NOTE
If replacement parts are ordered, please furnish the following information to your EBARA distributor:
1. EBARA Model number and Serial number on the nameplate.
2. Item numbers
3. Description of pump part
Rev 10/2018
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WARNING
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