Pulsafeeder PULSAtron Series MP EN - Manual (Page 26)

26
TROUBLESHOOTING
PROBLEM PROBABLE CAUSE REMEDY
LOSS OF
CHEMICAL
RESIDUAL
1. Pump setting too low.
2. Scale at injection point
3. Solution container allowed to run dry 1. Adjust to higher setting (pump must be operating during stroke length adjustment).
2. Clean injection parts with 8% muriatic acid or undiluted
3. Refill the tank with solution and prime. See start-up and operation section
TOO MUCH
CHEMCIAL
1. Pump setting too high1.
2. Chemical in solution tank is too rich
3. Siphoning of chemical into well or main
line. 1. Lower pump setting (pump must be operating to adjust stroke length knob).
2. Dilute chemical solution. NOTE: For chemical that reacts with water, it may be necessary
to purchase a more dilute grade of chemical direct from chemical supplier.
3. Test for suction or vacuum at the injection point. If suction exists, install an anti-siphon
valve.
LEAKAGE AT
TUBING
CONNECTIONS
1. Worn tube ends
2. Chemical attack 1. Cut off end of tubing (about 1”) and then replace as before
2. Consult your seller for alternate material.
FAILURE TO
PUMP
1. Leak in suction side of pump
2. Valve seats not sealing
3. Low setting on pump
4. Low solution level
5. Diaphragm ruptured
6. Pump head cracked or broken
7. Pump head contains air or chlorine gas
8. Breakdown or disconnection of wiring
9. Voltage drop
10. Malfunction of electronic control board 1. Examine suction tubing. If worn at the end, cut approximately an inch off and replace
2. Clean valve seats if dirty or replace with alternate material if deterioration is noted
3. When pumping against pressure, the dial should be set above 20% capacity for a reliable
feed rate
4. Solution must be above foot valve
5.
Replace diaphragm as shown in the “Maintenance Section”. Check for pressure above
rated maximum at the injection point. NOTE: Chemical incompatibility with diaphragm
material can cause diaphragm rupture and leakage around the pump head.
6.
Replace pump head as shown in “Maintenance Section”. Make sure fittings are hand
tight only. Using pliers and wrench can crack pump head. Also, chemical incompatibility
can cause cracking and subsequent leakage.
7.
Bleed pump head, see “Air Bleed Operation”.
8. Connect wiring properly. Check fuse or circuit breaker
9. Take measures after investigation of cause
10. Contact supplier
PUMP LOSES
PRIME
1. Dirty check valve
2. Ball checks not seating or not sealing
properly
3. Solution container allowed to run dry
4. Chemical outgassing 1. Remove and replace or clean off any scale or sediment
2. Check seat and ball checks for chips, clean gently. If deformity or deterioration is noted,
replace part with proper material. Resulting crystals can hold check valves open, therefore
the valves must be disassembled and cleaned. Be sure to replace all parts as shown in the
Parts Diagram at the end of the manual.
3. Refill the tank with solution and prime. See Start-Up and Operation section
4. Bleed gas, use flooded suction, maintain chemical at room temperature (approx. 20° F / -
6° C).
LEAKAGE AT
FITTING
1. Loose fittings
2. Broken or twisted gasket
3. Chemical attack 1. Tighten hand tight. Replace gasket if hand tight does not stop leakage
2. Check gaskets and replace if broken or damaged
3. Consult your pump supplier for alternate material
PUMP WILL NOT
PRIME
1. Too much pressure at discharge
2. Check valves not sealing
3. Output dials not set at maximum
4. Suction lift height too much
5. Pump equipped with spring loaded high
viscosity valves 1. Turn off all pressure valves, loosen outlet tubing connection at discharge point. Remove
discharge valve cartridge. Dampen ball check and valve seats with a few drops of solution.
Set pump dial to maximum rate. When pump is primed, reconnect all tubing connections.
2. Disassemble, loosen, clean and check for deterioration swelling. Reassemble and wet
the valve assembly, then prime. See Start-Up Operation section.
3. Always prime pump with out dial set a maximum rated capacity
4. Decrease suction lift or pull vacuum on pump discharge until pump is primed
5. Loosen discharge valve to aid in priming, take necessary safety precautions or apply
vacuum to pump discharge