Graco 2730H User Manual
Page 13
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Troubleshooting
309286K
13
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