5470-250-00
2
9/2016
Specifications Information and Repair Parts Manual
5470 thru 5497 and 5530 thru 553B
x
Stamped Stainless Steel Centrifugal Pumps
INSTALLATION OF NEW SEAL
The precision lapped faces of mechanical seal are easily damaged. To
prevent leaks, handle replacement seal carefully. Do not touch seal
mating faces.
1.
Clean seal cavity area of casing cover (Ref. 5). Lubricate
rubber portion of seal seat (Ref. No. 6 without spring) with
soapy water. Protect seal face with cardboard and press
squarely into place, with polished side up. Then lay casing
cover onto adapter (Ref. No. 2), and center it around motor
shaft.
IMPORTANT:
To avoid rubbing during operation, maintain gap between
seal and motor shaft until assembly is complete.
2.
(High
volume
models only) Clean outside of shaft stem on
impeller (Ref. No. 7). Lubricate inside rubber portion of seal
head (Ref. No. 6 with spring) with soapy water. Gently slide
seal onto impeller with polished side facing away from
impeller.
3.
(High
head
models only) Clean outside of shaft. Lubricate
inside rubber portion of seal head (Ref. No. 6 with spring) with
soapy water. Gently slide seal onto impeller with polished
side facing towards motor. Be careful not to damage seal
face.
NOTE:
(High
head
model only) Impeller is designed to use no spring
retainer between impeller and spring. If replacement seal is equipped
with spring retainer, discard retainer.
4.
Carefully screw impeller back onto motor shaft by turning
clockwise. Be sure to snug-up impeller by holding motor
shaft as during disassembly. Add impeller nut (Ref. No. 8),
then impeller nut (Ref. No. 9) and tighten.
5.
Carefully lay casing seal (Ref. No. 10) into desired position.
NOTE:
Casing may be rotated to position discharge port at various
angles.
6.
Use fasteners and washers (Ref. Nos. 12 & 13) to attach
casing.
IMPORTANT:
To avoid leaks, be sure to tighten fasteners in stages to
prevent casing seal from slipping and becoming pinched.
7.
When assembly is complete, check for
interference by
spinning motor shaft by hand and listening. If rubbing heard,
loosen fasteners and adjust casing cover until rubbing is
gone (casing may also require adjustment on high head
models). If rubbing still persists, remove casing. Then check
to be sure impeller is completely tightened and not binding
on shaft threads.
Seal will produce minor drag when spinning motor shaft, but rubbing
anywhere else must be eliminated! Otherwise, damage to pump
and/or motor may occur.
For Repair Parts contact dealer where pump was purchased.
Please provide following information:
-Model Number
-Serial Number (if any)
Part description and number as shown in parts list
Figure 1
– Repair Parts Illustration
Summary of Contents for 5497
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