Goulds Pumps CV 3171 - IOM - Manual (Page 43)

CV 3171 IOM 05/11 43
ASSEMBLE LIQUID END
1. Press casing collar (155) into adapter (108A)
using a suitable press.
2. Prepare the adapter (108A) if required. Press in
new steady bearing. Install snap ring and seals
on sealed bearings (Figure 30). The seals are
mounted with the lips out, facing away from the
steady bearing.
NOTE: The steady bearing does not have to be
centered exactly nor do the holes in the bearing
have to line up with the holes in the housing.
There is a recessed area on the inside of the
adapter (108A) that allows lubricants to find the
opening in the bearing.
3. Slide the adapter onto shaft. Seat adapter
flange against column flange. Make sure match
marks scribed during disassembly line up.
Install bolts (371G) (Figure 36).
4. Insert O-ring into impeller groove. A small
amount of grease can be used to hold the O-
ring in place. Install impeller on shaft and
tighten. If impeller rubs adapter during
tightening, adjust impeller at thrust housing
away from adapter. Ensure shaft rotates freely
after tightening the impeller (Figure 37).
5. Adjust impeller (101) towards adapter using
jacking bolts (370D) until impeller just touches
adapter (108A). Place casing gasket (351) on
seat in casing (100). Install casing against
adapter. Make sure match marks scribed during
disassembly line up. Install casing to adapter
bolts (370) and tighten. Back off jacking bolts
(370D) until shaft rotates freely (Figure 38).
6. Turn discharge pipe (195) into elbow (315) with
thread sealant and tighten. Turn lower pipe nut
(242) onto discharge pipe all the way down
thread (Figure 39).
7. Install discharge pipe/elbow assembly through
support plate (189). Install elbow gasket (351A)
and connect elbow to casing with bolts (370H)
and tighten (Figure 39).
Figure 38
Figure 37
Figure 36
6