Pulsafeeder Pulsa GLM DM1-6 - Manual (Page 22)

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Difficulty Probable Cause Remedy
Piping noisy. Pipe size too small. Increase size of piping - install
pulsation dampener.
Pipe runs too long. Install pulsation dampener in line.
Pulsation dampener inoperative
or flooded. Refill with air or inert gas. Inspect and
replace diaphragm and recharge.
No surge chamber or dampener
used. Install pulsation dampeners.
Motor overheats. Pump overloaded. Check operating conditions against
pump design. Verify discharge
pressure.
High or low voltage. Check power source.
Loose wire. Trace and correct.
Incorrect motor wiring. Verify and correct.