YK11-0016-DI-002-08
73
Trouble Causes Processing Method Reference
The pump
dose not
run.
10
Are the Safety circuit such
as a MS (Magnetic Switch)
and MCCB (Molded Case
Circuit Breaker) normal?
Failure of components.
Check the Safety circuit and
replace.
3.5
11
Run only by the Motor.
Is the Rotation and current
value correct?
Replace the Motor 3.5
12
Moisture or solvents were
sucked in, forming rust
inside the pump.
Conduct the overhaul
(replacement of the Casing,
Rotor, Cover and so on.)
6.2.8
6.4
13
Components inside the
pump have burnt out.
Conduct the overhaul. 6.4
14
The oil is not supplied by
the specified volume.
a. Oil flow to outside of
pump.
b. Oil flow to inside of
casing.
c. Oil flow
seal.
Control the oil level.
Conduct the overhaul.
Supply the oil by the specified
volume.
a. Replace O-rings, etc.
b. Conduct the overhaul.
Replace Seal sleeves and
shaft seals
c. Drain out oil of the reservoir,
and it relubricates the cover
on the motor side.
or
If the oil pooled 0.15mL/Hour
or more, You need Replace
the Mechanical seal.
3.2
6
6.1
6.2
6.3
6.4
15
Pressure is over the
maximum pumping
pressure.
Check pressure on intake and
exhaust sides.
Check the backing pump.
2.2
16
Rotors do not rotate by
inertia.
Conduct the overhaul 6.4
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