Air Conditioning System Troubleshooting - Zetor UTILIX CL Operator's Manual

Air conditioning system troubleshooting

-
1 - Rear mirror
2 - Working lamp
3 - Front wiper
4 - Roof hatch
Bubbles or foam visible
Bubbles flow and
refrigerant gas
disappeared like a fog
flows.
Same bubble appeared
occasionally. (1~2 sec.
gap)
No bubble shown high-
pressure pipe is hot
abnormally.
H-L pressure of the
pressure gauge needle
indicates high pressure
abnormally.
Refrigerant in the sight
is shown clearly.
When engine RPM
operates with high low
some bubbles
disappear slowly.
CABIN
Trouble shoot
Deficient of refrigerant
replenish.
Nothing different temperature
between H.L pipe.
High pressure of the pressure
gauge needle indicates low
pressure.
Replenish the refrigerant.
High pressure pipe is hot and
low pressure pipe is a little
cool.
H.L pressure of the pressure
gauge needle indicates low
pressure.
Too much of refrigerant
deflate.
High pressure pipe is not
abnormal.
H.L pressure of the pressure
gauge needle indicates high
abnormally.
Normal refrigerant gas
situation.
High pressure pipe is hot Low
pressure pipe is cool.
High low pressure is normal
with below.
Low : 1.5~2.0 kg/m
High : 14.5~15 kg/m
118
Abnormal
Abnormal
Abnormal
Normal
2
2