YL9110 Quaternary Pump
Liquid is leaked
or pressure
reduces when
cleaning port is
not used
-High pressure seal was worn.
-Plunger was worn.
-Replace high pressure seal.
-Replace plunger.
Liquid is leaked
from inside of
instrument.
-Fitting in instrument was
loosened.
-Damper was damaged.
-Low pressure seal was worn.
-Tighten fitting in instrument.
-Replace.
-Replace low pressure seal.
Pump is not
operated after
input of power.
-Power voltage is unstable or low.
-Strong induction voltage is
generated in the surroundings.
-Use stable, proper DC power source.
-Close induction power source in
surroundings, or install instrument
away from power source.
Noise is too
high
-Load is caused to piston carrier.
-Timing belt is loose.
-Motor is in defect.
-Supply lubricant in carrier body.
-Reduce clearance above belt by
adjusting guide location of timing
belt.
-Inspect connection status of motor
cable, and replace motor if noise
is severe only in high pressure.
L9110
31
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