Graco 2730H - Manual (Page 13)

Troubleshooting
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Packings are failing frequently or pre-
maturely Scored, damaged, or worn plungers Install new plungers.
Abrasive material in fluid being
pumped Install proper filtration on pump inlet
plumbing.
Inlet water temperature too high Check water temperatures. It should
not exceed 160°F (70°C).
Pump running too long without spray-
ing Never run pump more than 10 min-
utes without spraying.
Running pump dry Do not run pump without water.
Strong surging at inlet and low pres-
sure on discharge side Foreign particles in inlet or discharge
valve or worn inlet and/or discharge
valves Clean or replace valves.
Problem Cause Solution