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REPAIR INSTRUCTIONS - SP100HT/SP200HT PUMP
1. With a 22mm socket, remove
the three discharge (43)
and three inlet (41) manifold
plugs.
3. Use a small slide hammer
to remove valve seats (37)
from manifold (29). Inspect
valve plate (36) and valve
seats (37) for wear. If exces-
sive pitting is seen, replace
the worn parts. Check valve
seat o-ring (38) for wear and
replace as necessary.
6. Remove the inlet valve re-
tainer assembly (34A-39)
41A
2. Check o-ring (44) for wear and replace as necessary. Remove the
discharge spring retainer (34), valve spring (35), and valve plate
(36).
4. Drain the oil from the pump.
Turn the pump over to remove
the four manifold stud nuts
(46) with a 19mm wrench.
7. Remove the o-ring, (40), valve plate (36), valve spring (35), spring
retainer (34A). Check valve retainer o-ring (40) for wear.
8
44
34
5. Tap the back of the valve cas-
ing (29) with a rubber mallet.
40
35
36
36
35
34A
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