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REPAIR INSTRUCTIONS - SP100HT, SP100HTK and SP200HT PUMPS
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.
50B (SP100HTK)
9. Remove the spacer (39A), pressure spring (33), support ring (51),
sleeves (50/50B for SP100HTK only), 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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