Finish Thompson SF Series Operations & Parts Manual page 10

Disassembly Continued
3. Intake Tube Removal - Unthread the diffuser
(item 16) turing it clockwise (left-hand thread). The
shaft sleeve (item 14) will drop out of the inner
tube by holding it in a vertical position. Remove the
intake tube (item 15). Hold the head (item 7) in one
hand and with the other hand, turn the intake tube
clockwise (left-hand thread). When completely
unthreaded, pull the intake tube away from the
head exposing the inner tube and center support
(items 12 & 13) See Figure 6 A, B, C, D, & E.
4. Inner Tube & Center Support Removal - To
remove the inner tube and center support, turn the
inner tube to unseat the o-rings (item 11) and then
pull the inner tube away from the head. See Figure
7 A & B.
5. Center Support Removal - If the center support
(item 13) needs to be replaced, it can be removed
by spreading open the fingers and disengaging it
from the inner tube.To reinstall open the center
support in the same manner as removing and slide
it over the bottom of the inner tube. Then slide it
up until it snaps into the machined groove. Make
sure the taper is pointing downward. See Figure 8
A, B, & C.
6. Seal Removal - To remove the seal (item 4) from
the head (item 7), use a hook tool, available at
most hardware stores, to pull the seal out from the
top of the head. Take care not to damage the seal
seat area. See figures 9 A & B. Note: The seal
should be replaced if worn or the bearing is failing
or frozen.
Figure 6 A, B, C, D, & E
Figure 7 A & B
Figure 8 A, B, & C
Figure 9 A & B
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