8 308-798
Service
Fig. 40. Reassemble intake valve with new o-ring
(227), seat (212) and ball (214). Seat may be flipped
over and used on other side. Clean seat thoroughly.
Fig. 40
214
212
7570A
227
Fig. 41. Install intake valve on cylinder. If a wrench is
used torque as follows:
67"5 ft-lb (for model 239–923)
80"5 ft–lb (for models 240–291 & 240–800)
100"5 ft–lb (for model 240–917).
If a wrench is not used, be sure intake valve is bot-
tomed out against cylinder.
Fig. 41
7569A
Fig. 42. Torque seal and packing nut (202) down onto
throat nut spacer (228) to 100 "10 in-lb.
Remove throat nut spacer (228) when pump packings
begin to leak after much use. Then tighten packing nut
down until leakage stops or lessens. This allows
approximately 100 gallons of additional operation
before a repacking is required.
7568A
Fig. 42
202
228
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