YK15-0009-DI-002-04
41
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 5.4
12
Moisture or solvents were
sucked in, forming rust
inside the Pump.
Conduct the overhaul
(replacement of the casing,
rotor, cover and so on.)
5.4
13
Water absorption
expands the vanes.
Conduct the overhaul
(replace the vanes)
5.4
14
Components inside the
Pump have burnt out.
Conduct the overhaul. 5.4
15
Temperature is low
a. turn the Pump on and off
several times in short
intervals.
b. warm up the Pump oil.
c. move a pump while putting
slow leak in a pump
d. Replace the oil.
ULVOIL R-42
2.2
4.1
4.2
4.5
16
Pump was not vented
when stopped.
Turn the Pump on and off
several times in short intervals.
4.1
4.2
4.3
17
The oil is not supplied by
the specified volume.
a. Oil flow to outside of
pump.
Control the oil level.
Conduct the overhaul.
Supply the oil by the specified
volume.
a. Replace O-rings, etc.
3.2
5.2.1
5.2.2
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