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6.2.2
Installation of Liquid End Assembly
STEPS
1.
Place the shaft key in the pump shaft key way and be sure it is fully
seated.
2.
Check to see that anti-seize compound is on the exposed pump shaft
where it engages with the bearing frame shaft. If not, coat the pump
shaft with a small amount of an anti-seize compound (i.e., Never-Seez
or Anti-Seize). The anti-seize compound is used to prevent corrosion,
galvanic pitting, rust, and seizure. These compounds are available
from the factory or local industrial supply house.
3.
Align the keyed pump shaft with the bore of the bearing frame shaft
and insert the pump shaft such that the key on the pump shaft fits
into the key way on the bearing frame shaft. Then push until castings
come together.
4.
Fasten together the inlet casting, mechanical seal holder, and bearing
frame assembly with the four (4) 3/8-inch bolts and lock washers.
Reference Figure 6.8 (Separation of Liquid End from Bearing Frame)
and Figure 6.9 (Removal of Mechanical Seal) for correct placement of
parts.
5.
After fastening the inlet casting to the bearing frame assembly, line up
the set screw hole in the bearing frame shaft with the access hole in
the bearing frame by rotating the flexible coupling. Place the set
screw in the bearing frame shaft.
discharge casting, push on the end of the pump shaft with a wooden
dowel to seat the shaft in the bearing frame and then tighten the set
screw.
Figure 6.8
Separation of Liquid End
from Bearing Frame
18
Through the opening in the
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