4.3 Maintenance of Air Compressor
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4.3 Maintenance of Air Compressor
NOTICE: Instruments shipped to European area where CE marking conformity is necessary are
not provided with the rotary pump. Also according to the configuration of the
apparatus, the rotary pump is not provided even when shipped to outside of the
European area.
4.3.1 Checkup and Maintenance
Check the following items regularly.
Before checkup/maintenance, be sure to turn the main switch off.
Service Cycle
Check Item Procedure
Every
day
Every
250 h
(1 month)
Every 3,000 h
(1 year)
Every 6,000 h
(2 years)
Discharge of drain Loosen the drain
cock of air tank to
discharge drain.
○
Activation of control
devices (pressure
gauge, pressure switch
and safety valve)
Check the working
pressure and
activated function.
○
Abnormal vibration and
abnormal sound
○ ○
Loose bolts, nuts and
screws
If loose, retighten
them.
○
Contamination and
clogging of strainer/filter
Blow air to
remove clogged
substance.
○ ○ ○
Leakage through air
valve ∗
○ ●
Piston ring ∗ ○ ●
Rider ring ∗ ○ ●
Ball bearing ○ ● Bearing
∗
Needle roller
bearing
○ ●
WARNING: When the compressor must be drained, the inside of the tank remains
pressurized. A jerking operation can cause the contents of the tank to splash,
causing injury to eyes. When draining the compressor, do not stand directly in
front of the cock. Turn the cock slowly, and drain off the unit gradually.
