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Idiomas disponibles
Idiomas disponibles
Troubles
Noting pumped
up.
Motor turns
Low pump flow.
Excessive
vibration or noise.
Water hammering
★ For repair work and necessary replacement parts, contact the Fuji Electric Corp. of America
representative or distributor in your area.
Always furnish us with the following facts:
(1) Type of pump (shown on specification plate)
(2) Serial No. of pump.
(3) Trouble spots and condition of damage.
(4) Names and number of parts that require changing.
(5) Length of time during which pump has been in activity.
Possible cause
No priming.
Fluid level lower than suction
inlet.
Air being sucked in from
suction pipe.
Mechanical seal worn out.
Slight amount of air being
sucked in from suction pipe.
Too many air bubbles
contained in fluid used.
Motor rotation in reverse.
Large loss of piping.
Piping is loaded with foreign
matter.
Mechanical seal worn out.
Bearings worn out.
Motor in single-phase instead
of three-phase operation.
Generation of hammering at
sudden closing of piping.
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Remedy
Carry out priming.
Raise fluid level.
Check suction pipe for air
leaks.
Change mechanical seal.
Check suction pipe for air
leaks.
Eliminate bubbles or stop
possible entrance of air into
fluid.
Reposition 2 of 3 terminals.
Check piping.
Remove foreign matter, and
check connections.
Change mechanical seal.
Change bearings.
Check for opened circuit.
Mount pressure buffer near
valve.
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