normal● Normal refrigerant gas situation
● High pressure pipe is hot
Low pressure pipe is cool
● High low pressure is normal
with below.
Low: 1.5~2.0kg/㎡
High: 14.5~15kg/㎡
● Refrigerant in the
sight is shown clearly
● When engine RPM
operates with high low
some bubbles disappear
slowly
Abnormal●Too much of refrigerant deflate.
●High pressure pipe is not abnormal
● H.L pressure of the pressure
gauge needle indicates high
abnormally.
● No bubble shown
High-pressure pipe is hot
abnormally.
H-L pressure of the
pressure gauge needle
indicates high pressure
abnormally
Trouble shootBubbles or foam visible
5.Diagnosing malfunctions.
(1) Tracing faults
Check,replaceSlip the clutch
Check,replaceDamaged partsInlet causeAbnormal
revolution
Tighten the boltsHead bolt released
replaceSealing washer
damaged
Refrigerant or oil
leakage
Refrigerant or
oil leakage
AdjustBelt tension
released
Outlet cause
ReplenishNot Lub.
AdjustInsufficient
refrigerator
Low,High pressureExcessive
pressure
ReplaceD-ring damaged
ReplaceCompressor
CheckClutch fail
Tighten the boltsRelease the bracket
Belt tension release
Insufficient Lub.
CAUSE
Adjust
ReplenishInlet sound
Outlet sound
Abnormal sound1.Compressor
REMEDYCONDITIONSYMPTOM
87