Polaris TBM 50 LH Series Installation, Operation And Maintenance Manual page 49

ENGINEERING STANDARD PROCEDURE
IMPELLER INSTALLATION – TECH BULLETIN
DOCUMENT NBR. :
1.0 SCOPE: The purpose of this Engineering Standard Document is to define the procedure to be
followed in installing the Impeller and Impeller Lock Screw for Series TBM.
***DO NOT REUSE OLD IMPELLER LOCK SCREWS WHEN REBUILDING PUMPS***
2.0 METHOD:
0 NEW
3 UPDATE
REV ECN CHANGE DESCRIPTION
A0431 REVISION:
***ALWAYS USE A NEW IMPELLER LOCK SCREW***
3
2.1 – Impeller Installation
Clean and degrease all parts prior to impeller installation.
Using a grease remover or solvent, remove all grease, oil or
preservative from the shaft-end internal threads and dry.
Apply Nickel based Never-Seize or similar to impeller bore,
shaft and key and install impeller onto motor shaft.
DO NOT apply Never-Seize to shaft-end internal threads.
2.2 – Impeller Blocking
Position a Box / Open End wrench using one of the strainer
bolts as shown. Place a wood block between the impeller and
wrench.
Note: Reverse wrench location to the opposite side for
impeller removal.
1of 2
EFFECTIVE 01-26-2012
DATE:
UJB 08-15-02
UJB 01-26-2012
BY APPV'D DATE