Finish Thompson SF Series Operations & Parts Manual page 12

Reassembly Continued
5. Shaft Installation - Slide the shaft down through
the seal until the bearing engages the bearing bore
in the head. Set the half coupling on the floor and
push the pump down using the intake tube (item 15)
for leveridge. Make sure the bearing (item 4) is flush
with the top of the head (item 7). While the pump is in
thie upright position slide the shaft sleeve (item 14)
between the shaft (item 5) and inner tube (item 12).
The shaft sleeve is self positioning so just push it in
all the way until it drops down in completely into the
inner tube. See figures 14 A, B, C, D.
6. Diffuser Installation - Install the diffuser (item 16) onto the bottom of the outer tube. This is a tight fit so it is
recommended to use a compatible lubricant or water. Insert the shaft through the small support opening on the
diffuser. The small support opening will insert up inside the inner tube (item 12). With a slight push and turn, thread
the diffuser into the outer tube (item 15) turning counter clockwise (left hand thread). See figures 15 A, B, & C.
7. Thread the diffuser (item 6) completely onto the bottom of the outer tube (item 5). Hand tighten. Thread the impeller
(items 17 or 18) onto the shaft by hand. While holding the half coupling with the other hand, turn the impeller
clockwise (right hand thread). Install the diffuser cover (item 19 or 20) onto the diffuser turning counter clockwise
(left hand thread). Hand Tighten. See Figures 16 A, B, C, D, E, F, & G.
Figure 15 A, B, & C
Figure 16 A, B, C, D, E, F, & G
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Figure 14 A, B, C, D