Pajero II Workshop Manual 1991 · Отопление, кондиционирование и вентиляция · страница 87 из 118 · Открыть оригинал PDF ↗

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Low Charge

If the system has not lost all of its refrigerant charge; locate
andrepairall leaksIf it is necessary to increase the system
pressuretofindtheleak(becauseofanespeciallylow
charge) , add refrigerant:If it is possibletorepairthe leak
without discharging the refrigerantsystem,usetheproce-
dure for correcting low refrigerant level:

HANDLING TUBING AND FITTINGS

ESSFVAD

Kinksintherefrigeranttubingorsharpbendsinthe
refrigerant hose lines will greatly reduce the capacity of the
entire system_High pressures are produced in the system
whenit isoperatingExtremecaremustbe exercisedto
make surethat all connections arepressure tight:Dirt and
moisturecan enter the system when it is opened forrepair
OrreplacementoflinesOrcomponents_Thefollowing
precautionsmust be observed:Thesystemmust becom-
pletely discharged before opening any fitting of connection in
the refrigerationsystemOpen fittingswithcautioneven
afterthesystemhasbeendischarged:anypressure is
noticedasfittingis loosened,allow trapped pressureto
bleed off very slowly_

Never attempt to rebend formed lines to fit: Use the correct line
for the installation YoU are servicing:A good rule for the flexible
hose lines is keep the radius of all bends at least 10 times the
diameter of the hose. Sharper bends will reduce the flow of
refrigerant; The flexible hose lines should be routed so that they
are at least 80 mm (3 in:) from the exhaust manifold: It is good
practice t0 inspect all flexible hose lines at least once a vear to
make sure they are in good condition and properly routed. 0
ring used on connections are not reusable:

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