TapFlo Steinle Filter Press Pump Series, Original Instruction

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3. MAINTENANCE
Steinle Filter Press Pump Series
22
3.4. Location of faults
PROBLEM POSSIBLE FAULT POSSIBLE SOLUTION
The pump does not
run
No control power
Switch red button at the control box, check
polarity
Too much hydraulic liquid (one
pressure gauge at housing indicates
pressure)
Drain hydraulic liquid to adjust the
diaphragm
The air pressure is to low Increase air pressure via a filter-regulator
The air connection is blocked Check / clean air supply connection
The suction is bad
Muffler is blocked Check / clean / replace muffler
Suction connection is not tight Tighten the suction line
Suction connection is blocked Clean suction line
Valve balls are blocked or damaged Check dimensions and shape of valve balls
Valve seats are worn Check dimensions and shape of valve seats
Pump starts with high pressure Start the pump slowly (see chapter 2.2)
Air in suction / discharge line Vent suction / discharge line
Dry suction against discharge
pressure
Wet the pump / start without discharge
pressure
The pump runs
irregular
Valve balls are blocked Check dimensions and shape of valve balls
Diaphragm breakdown
Replace diaphragm
Check dimensions and shape of valve seats
Valve seats are worn Check dimensions and shape of valve seats
Icing on the muffler
Improve air quality (see chapters 1.7.1 and
2.2.2)
Bad flow/pressure
Pressure fall in air supply Increase air pressure via a filter-regulator
Pressure losses on suction side Check/change installation on suction side
Air supply / air valve leaking Check / repair / replace air supply / air valve
Suction or air connection blocked Check / clean air supply / suction connection
Muffler is blocked Check / clean / replace muffler
Valve ball worn or broken Check dimensions and shape of valve balls
Valve seats are worn Check dimensions and shape of valve seats
Air in liquid Seal suction line; check / refill container
Diaphragm breakdown
Icing on the muffler
Check / replace diaphragms
Improve air quality (see chapters 1.7.1 and
2.2.2)
Air in hydraulic system Remove air
Air in pipe system Remove air
Suction pipe untight Tighten
Pump leaks oil
Piston speed too high Reduce air supply
Cavitation in hydraulic system
Check ball valves
Install larger suction pipe
Install pulsation dampener on
suction side
Seal worn out
Install filter in air supply
Change seal
Pump stops
Failure in control system
Check control system and
change sensors or solenoid valve
Pressure on discharge too high Increase air pressure
No control power Switch on power
Diaphragm
breakdown
Wrong selection of material
Contact us for information on material
selection
Pump has no flow
after service
Pressure from discharge pipe press
the balls into the seats
To drain air from the pump use back flow
pipe(open the back flow pipe)