Clarke VE Ranges Інструкція з експлуатації та обслуговування - Сторінка 15
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SYMPTOM
Compressor unit starts
and stops more
frequently than usual.
Compressor unit starts
when no air is being
used.
Compressor's oil
consumption rising.
Oil in the air delivered.
Oil level rises although
-no oil has been put in.
Condensation in crank Compressor overdimensioned
case (especially in
2-stage compressors).
PROBABLE CAUSES
Large amount of
condensation in air receiver.
Leaks in control unit or
inspection cover.
Too little pressure differential.
Leaks in pipework system
Too much oil in compressor.
Leaks around crank case.
Working temperature of
compressor too high because
of insufficient cooling.
Unit too small in proportion
to air consumption.
Semi-automatic unit Load too
small.
Cylinder worn.
Intake air filter blocked.
Sump over full.
Cylinder worn.
Governor controlled unit
running off load for too long
a period.
Intake air filter blocked.
Condensation in oil pump.
(operational periods too short
in relation to resting periods).
16
REMEDY
Drain off condensation
AT LEAST once a week.
Locate leaks (by means of
soapy water) and repair.
Adj. pressure switch
(see fig.4).
Locate and repair leaks.
Check oil level 2 or 3
minutes after stopping.
Change seal and inspect
packing surfaces. Repair
or replace defective parts.
Increase ventilation to
air comprressor.
Connect supplementary.
Convert to fully
automatic operation.
Replace worn parts or send
compressor pump for an
overhaul
Change air filter.
Reduce oil to correct level.
Replace worn parts or send
compressor pump for an
overhaul.
Convert to automatic
control.
Change air filter.
Compressor over
dimensioned.
a) Frequent oil changes.
b) Reduce cooling of crank
case (eg. by shielding it
from air stream).
c) Reduce RPM of pump.