Displacement Pump - Graco HTX 257369 Repair Manual

Repair

Displacement Pump

Removal
1. Flush pump, page 22.
2. Stop pump with piston rod in its lowest position.
3. Perform Pressure Relief procedure, page 9.
4. Top Coat Pump: Separate drain hose from sprayer.
5. Disconnect transducer from pump manifold.
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6. Raise latch lock and push latch open.
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7. Ratchet open pump door.
a. Ratchet pump door forward.
b. Twist latch u-bolt out of pump door recess.
22
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c. Place u-bolt on pump door outer edge.
d. If pump door is stuck, do steps e, f, and 8. Oth-
erwise, go to step 9.
e. Twist latch u-bolt back from pump door outer
edge.
f. Place u-bolt on pump door protrusion.
8. Ratchet pump door forward.
9. Open pump door.
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10. Pull out pump pin and place in pin holder.
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