7. CYCLE REFARE FLOW CHART
NO
YES
. Drain compressor oil and
compare with the standad.
. When cutting the dryer, is gelled
oil attached near?
And check if there is now
clogging at the end of capillary.
. No gelled oil below '4'.. Gelled oil up to '5' is generated.
. Make sure to perform concentrated
Nitrogen blow welding.
Service Call
Cycle problem?
Usual repair
Gas leak(High/low
pressure sides)
Bad compressor
(Bad stroke,ejecting)
Cycle clogging
Bad vacuum degree.
Lack of refrigerant,etc.
Judge by oil color of compressor
Comparing with ASTM standard
color check for gelled oil.
Replace cabinet.
Replace compressor.
(Bad compressor)
(Leak in low pressure side)
Replace dryer.
Check degrel of vacuum.
Charge refrigerant.
Air-tight the refrigerant
Check of leak in air-tight portion.
Anticorrosive paint treatment.
Cooling test.
Finish.
17
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