TS5620_SERIES_AD
7. TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
CORRECTION
Fluid pressure too low
Increase fluid pressure
Operating pressure too low
Increase air pressure to 70 psi (4.8 bars)
Dispense tip clogged
Replaced tip
No fluid flow
Fluid cured in valve chamber
Clean valve thoroughly
The stroke adjustment closed
Open stroke adjustment counterclockwise
Fluid pressure fluctuating
Make sure fluid pressure is constant
Valve operating pressure is too low
Increased valve pressure to 70 psi (4.8 bars) Check to make sure the valve controller is providing a consistent output
Inconsistent fluid flow
Valve open time is not consistent
Air trapped in fluid housing
Purge valve
Fluid drools after the valve closes, eventually stopping
Air trapped in fluid housing
Purge valve
Worn diaphragm
Replace diaphragm
Worn fluid housing
Replace fluid housing
Steady drip
Fluid pressure exceeds 70 psi (4.8 bars) Valve re-assembled incorrectly after cleaning
Lower fluid pressure
Refer to Maintenance section
Fluid leaks between diaphragm and fluid housing
Mounting screws loose
Tighten screws
Fluid leaks out of bleed hole Diaphragm ruptured
Replace diaphragm
9
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