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Table 5 Periodic inspection table
Inspection
cycle
Inspection
item
Details
What to do
Oil
Check that the oil amount is the
specified amount.
Add oil.
Before use
Wiring
Check that there are no cracks in
the electric cord or loose
terminals.
Replace the electric cord.
Tighten the terminals.
Oil
Check that the oil is not
discolored.
Red/brown color; cloudy white
color is abnormal.
Change the oil.
Noise
Check that the noise is normal.
Vibration
Check that the vibration is
normal.
Check that the nuts and bolts
are tightened.
Contact the manufacturer for
further clarification.
Once every
three days
Current
Check that it is at or below the
rated current.
Check for causes of overload.
Contact the manufacturer for
further clarification.
Surface
temperature
Check that the surface
temperature is normal.
50
º
C or more above room
temperature is abnormal.
Check for causes of overload.
Contact the manufacturer for
further clarification.
Once a week
Oil leaks
Check that oil is not leaking from
any of the plugs.
Replace the seals.
Or, contact the manufacturer.
Intake metal
mesh
Check that it is not clogged with
dust, etc.
Clean the metal mesh.
Once every
3,000 hours
or
Once every
six months
Oil
Necessary even if normal.
Change the oil.
When requesting Ulvac’s service division for disassembly or repair, always note the
gases used, and complete the check list (“Conditions of Use Check Sheet”) at the
end of this manual. If the pump has been used to exhaust toxic gases, the pump
itself, and the pump oil will also be toxic. Use with some gases may render
disassembly and repair impossible. Pay sufficient attention.
Danger
