Graco Magnum XR9 - Page 41

Troubleshooting
41
Problem Cause Solution
Paint leaks down outside of pump. Worn pump packings. Replace pump packings, page 56.
Paint comes out of pressure
control knob.
Worn pressure control knob. Return sprayer to Graco/M
AGNUM authorized service
center.
Pressure drain actuates
automatically, relieving pressure
through prime tube.
System is overpressuring.