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REPAIR INSTRUCTIONS - SP100HT/SP200HT PUMP
8. With a valve puller remove
the valve seat (37) and o-ring
(38) replace if worn. If exces-
sive pitting is seen, replace
the worn parts. Check valve
seat o-ring (38) for wear and
replace as necessary.
10.
With a flat headed screw-
driver remove the weep return
plate (48). Remove the o-ring
(49) and check for wear.
9. Remove the spacer (39A), pressure spring (33), support ring (51),
sleeves (50), and pressure ring (30), from the manifold (29) and
check for wear.
49
50A
51A
11. Inspect seals (50A), seal
support ring (51A) and O-ring
(49) and replace as neces-
sary.
9
12.
Inspect ceramic plunger
(24A) tips for wear. If neces-
sary, replacement of the
ceramic plungers may be ac-
complished by removing the
plunger bolt assemblies (24)
with a 13mm wrench. Ce-
ramic plungers should now
slide off the stainless steel
plunger base (22). Exces-
sive resistance to plunger
removal may be overcome
by heating the stainless steel
plunger base. This will melt
any excess loc-tite beneath
the ceramic plunger allowing
easy removal.
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