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1.
Using a phillips head screwdriver, remove the two #6 Self-
Tapping Screws (14) on the back of the base that hold the pump
together.
2.
Pull apart the three major plastic assemblies in the pump –
the Lower Shield (7), Base (8), and Stator (1) Assemblies.
A
⁄
" x 1
⁄
3
3
1 6
4
and can be left sitting in the base. The Rotor Assembly (13)
rotates within ball bearings pressed into the Base and Lower
Shield. Two Washers (12) prevent the Rotor Assembly from hitting
the bearings.
3.
Replace the Rotor Assembly and Washers with new ones.
4.
Reassemble all parts.
a.
Slip one washer onto the bottom of the Rotor Shaft. Slip the
bottom of the Rotor Shaft through the bearing pressed into
the Base.
b.
Add the second washer onto the top of the Rotor Shaft.
c.
Place the Alignment Pin (11) in the mounting hole in the
Base.
d.
Slip the Boss (15) in the Stator Assembly over the alignment
pin, until the bottom of the Boss makes contact with the base.
e.
Bring the Lower Shield Assembly down, so that the following
four assembly actions occur:
i.
The top of the Rotor Shaft fits through the bearing
pressed into the Lower Shield.
ii.
The Boss in the Lower Shield fits over the alignment pin.
iii. The slot in the Lower Shield fits over the Clamp Plate.
iv.
The bottom of the Lower Shield is flush with the Base.
f.
Attach the Base to the Lower Shield with the two #6 Self-
Tapping Screws.
" long Alignment Pin (11) aligns the three assemblies
Maintenance
6
6-3
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