19
Troubleshooting
Condition Cause Corrective action
Vacuum level
does not
increase.
Filter element is clogged with dust, and air cannot
be taken in.
Remove the element and blow off
dust from the element with
compressed air.
If the element becomes dirty,
replace it with a new one.
Oil entered into the pump, and the vane cannot
come out.
Consult with our dealer or service
personnel.
Foreign object entered into the pump and the
vane cannot come out.
Due to rust inside of the pump by intaking water,
the vane cannot come out.
Due to condensation inside of the pump, the vane
cannot come out.
Damage to meter Replace the meter.
Tightening of filter case, piping, air tank are not
tightened well, and air leaks.
Consult with our dealer or service
personnel.
The coupling fixing bolt is loose.
Decreased pump rotating speed due to motor
malfunction.
Damaged vane.
Worn vane.
When an
abnormal
noise is heard
or when the
meter shows
pulsations.
An abnormal noise is occurred because the
pressure is out of allowable range.
Return the pressure to the
applicable pressure range.
Excessive exhaust pressure causes an abnormal
noise.
Adjust the exhaust resistance to
return the exhaust pressure to
normal.
The abnormal noise occurs due to misfitting of the
coupling.
Consult with our dealer or service
personnel.
The abnormal noise occurs due to burning of the
motor.
The abnormal noise occurs because mounting
bolts became loose.
Damage to meter. Replace the meter.
Filter element is clogged with dust, and air cannot
be taken in.
Remove the element and blow off
dust from the element with
compressed air.
If the element becomes dirty,
replace it with a new one.
Oil entered into the pump, and the vanes cannot
come out.
Consult with our dealer or service
personnel.
Due to condensation inside of the pump, the
vanes cannot come out.
The vanes were broken because foreign object(s)
entered into the pump.
When pump
is stopped.
The vanes were broken because foreign object(s)
entered into the pump.
The rotor was touched because the pressure was
out of applicable pressure range.
Defective electromechanical system
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