Graco M2K 17D763, Instructions - Parts Manual

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Maintenance
10 334625B
7. Tighten the needle valve slightly, so that the tapered
end centers in the seat (6) and holds its position.
8. Turn the six socket screws (2) oppositely and evenly
to 60–70 in-lbs (6.7–7.9 Nm). Back off the needle
valve (12) slightly.
9. Repeat step 8 as the torque will relax.
10. Repeat the procedure from step 9 on the other valve
housing (8).
Ball Valve Repair
NOTE: Repair Kit 217560 is available for the ball valves.
Parts included in the kit are indicated with an asterisk,
for example (18*).
When reassembling a ball valve (13 or 24), install the
ball (18* or 29*) so that the round hole aligns with the
main passageway of the valve body and the square hole
aligns with the stem (21 or 32) passageway.
NOTICE
Be sure to tighten the six socket screws (2) evenly.
The upper four screws, which surround the needle
valve assembly (12), are critical in ensuring that the
needle seats properly. If the bottom two screws are
over-tightened, they will throw off the alignment.