Chery QQ Service Manual
observed.
If reading becomes greater, it indicates there is leakage. So the system must be
repaired before evacuation operation continues.
If the reading keeps unchanged, it indicates there is no leakage. You can continue
evacuation.
（6）the total evacuation time should be over 15 mins.
（7）continue evacuation untill the reading of low-pressure meter is lower than
760mmHg, then turn off the manual valves at both sides.
（8）stop vacuum pump, remove the center charge hose from the vacuum pump inlet,
then refrigerant can be charged into the system.
III. Refrigerant charge
The air conditioning system is charged with HFC-134a（R-134a）
The part describes how to charge refrigerant into air conditioning system from the
refrigerant tank.
When charging refrigerant which is recovered by the recovery and regenerative unit,
you should follow the methods described in the instruction of device manufactory.
Warning:
Avoid liquid refrigerant to splash into eyes.
Occasionally some liquid refrigerant will exit, which means it’s temperature is lower
than the freezing point. If liquid HFC-134a（R-134a）splashes into eyes, dangerous
hurt will be caused. So you must take satety goggles to avoid these kinds of accidents.
if the HFC-134a（R-134a）splashes into eyes, you should go to hospital for treatment
at once.
Do not wipe your injured eyes by hand, but should wash the splashed part with large
amount of cleaned cold water to increase temperature of the part up to freezing point.
Accept treatment from doctors or ophthalmology professors as soon as possible.
If HFC-134a（R-134a）splashes on skins, treatment for frostbite should be
adopted.
It is not allowed to deal with refrigerant at places where welding is being taken or
there has vapor.
Chery Automobile Co.,Ltd
139
To Next Page
Loading...
