Graco EnergyComplete 313221H Instructions - Parts Manual page 36

To Remove Intake Valve Only
If pump is not generating any pressure, the intake
ball check may be stuck closed with dried material.
If the pump is not generating pressure on the
downstroke, intake ball check may be stuck open.
Either of these conditions can be serviced with the
pump in place.
2. Disconnect suction tube.
3. Remove intake valve by hitting ears (E) firmly
right-to-left with a non-sparking hammer. Unscrew
from pump. See pump manual for repair and parts.
To Remove Entire Pump Assembly
4. Disconnect suction tube. See page 35. Also discon-
nect steel outlet tube (16) from heater inlet.
5. Remove pump rod cover (222). Push clip up in back
and push pin (217) out. Loosen locknut (218) by hit-
ting firmly right-to-left with a non-sparking hammer.
Unscrew pump. See pump manual for repair and
parts.
6. Install pump in reverse order of disassembly, follow-
ing all notes in F . 9. Clean strainer (51). Recon-
IG
nect suction tube and outlet (D) lines.
7. Tighten fluid outlet fitting (D), then tighten locknut
(218) by hitting firmly with a non-sparking hammer.
8. Set function knob to Slow Recirc
prime. See page 16.
36
218
. Purge air and
1
2
F . 9. Displacement Pump
IG
217
1 2
Flat side faces up. Tighten by hitting
firmly with non-sparking hammer.
Lubricate threads with ISO oil or grease.
Repair
16
222
207
D
2
E
51
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313221H