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