Pajero II Workshop Manual 1991 · Отопление, кондиционирование и вентиляция · страница 75 из 118 · Открыть оригинал PDF ↗
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Service
Adjustment Procedures
Start up the vacuum pump.
(8) Evacuate toa vacuumreading of _100 kPa (750 mmHg;
29.5 in Hg) or higher (approx:10 minutes).
Caution
Thevacuumreadingshould always bemadewith
the vacuuman
gauge inupright position, otherwise
the reading will be erratic.
back all the
(9) Turn the handle of the special toolway
(valve closed).
(10) Stop the vacuum pump ad allow to stand for 5 minutes_
(11) Check for leaks(Good if the vacuum is held.)
(121 With the handle of the charge valve turned back all the
way (valve open) , install the charge valve_
(13) With the handle of the special toolturned back all the
way (valve closed),remove the vacuum gauge and install
the service can
(14) Tightenthehandleof chargevalve(valveclosed)to
puncture the service can.
(15)Turnthe handleof chargevalve back(valve open) and
tighten the special toolhandle (valve open),tocharge
the system with refrigerant:
(16) If the refrigerant is not drawn in, turn thehandle of the
special tool 0 back all the way (valve closed)_
(17) Check for gas leaks usinga leak detector
(18) Start the engine
(191 Operatetheairconditionerandsetatthelowest
temperature(MAXCOOL)
(201 Fix the engine speed at500 rlmin.
(21) Tightenthehandleofthe specialtool 0 fully(valve
open) to charge the required volume of refrigerant.
Caution
If the servicecan is inverted, liquid refrigerant may
be drawn into the compressor damaging it by liquid
compression: Keep the service can upright to ensure
that refrigerant is charged in gas state:
(221 After chargingwithrefrigerant,turn the handle of the
special toolback all the way (valve closed).
(23) Tighten the charge valve handle (valve closed).
(24)Remove thespecial toolsDandfromthe high and
low pressure service valves
(25)Remove the service can;
NOTE
If the service can is not emptied completely, keep the
charge valve and special toolsandin closed condi-
tion for next charging:
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