41
SYMPTOM POSSIBLE CAUSE POSSIBLE SOLUTION
Loses pressure in
MANUAL
Pump Air-lock• Clean strainer•
Larger hoses•
Little or no pressure
adjustment in MANUAL
Too much restriction in servo loop• Largerhosesandttings•
No sharp bends•
Pressure won’t go high
enough in MANUAL
Pump starved or too small•
Too much agitation•
Throttle, range adjust or pressure relief valves•
Larger hoses•
Reduce agitation•
Adjust•
Pressure, Speed and
Spray Rate don’t check
out according to charts
Inaccurate pressure reading•
Dirty or worn tips•
Use a different gauge and check •
each boom.
Clean or place•
Pressure always goes
too high in AUTO
Minimumowratetoohigh•
Inline/Bypass setting•
Re-calibrate•
Set appropriately•
Pressureuctuates
greatly in AUTO
Sagging or kinked hoses•
Throttle valve too far closed•
Pump starved or too small•
Valve response speed set too high (“Special” Cal)•
Support or replace hoses•
Adjust throttle and range valves•
Larger hoses•
Larger pump•
Clean strainer•
Reduce valve speed setting•
Troubleshooting (cont)
Plumbing Troubleshooting Chart
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