Cub Cadet 8454 - Manual (Page 333)

CABIN SYSTEM
9-19 D569-W02 May-2003
569W926A
3. The refrigerant does not circulate.
Status: not cool (sometimes cool)
Phenomena:
- The pressure of low pressure side is negative
and the pressure of high pressure side shows
the pressure 5 ~ 6 kg/cm
2 .
- Frost or dew forming in the receiver drier or the
front/rear pipe connection section of extension
valve.
Cause:
- The cycle is closed by moisture freezing or dust
in the refrigerating cycle.
- The cycle is blocked due to the poor wound box
of extension valve.
Action: Stop the operation once to check the clog-
ging by moisture or dust. If found the moisture, do
the vacuum working.
- Detach the extension valve and remove the dust
by air.
- Replace the receiver drier.
- Charge the proper amount of refrigerant.
1.0332 kgf/cm 2
14.696 psi
5 ~ 6 kgf/cm 2
71.1 ~ 85.3 psi
Low poor circulation
of refrigerant
High poor circulation
of refrigerant