Chery QQ - Compression System

Chery QQ Service Manual
（1）remove the negative wire of the accumulator.
（2）remove the relay connector and then remove the relay.
（3）wiring as shown in the diagram. Check whether the pins ③ and ① are
conducting. If not, please replace the relay.
8.
Compression system
Parts of the compressor must be free from dirt and foreign substance when the
compressor is being maintained. For correct maintenance, the clean tools and work
spots are the most important. The connections and surface of the compressor should
be made clean before maintenance or removing the compressor on any car. Parts of
the compressor should be kept clean at any time. Any resassembled parts must be
washed with methane trioxide, crude gasoline, kerosene or other equivalent solution
and then dried in dry air. Only napped cotton fabric can be used for wiping parts.
Without additional descriptions, removing the compressor from a car and overhauling
it on the work table should follow the below operations. The parts should be prepared
in the order of check. The remaining oil in the compressor should be drained out after
the compressor is removed from a car for maintenance, then the compressor is charge
with new refrigerant.
1）fault diagonosis
Item Troubles Possible reasons Action
1 Compressor has noise Piston, bearing,
cylinder and/or
crank shaft is out of
condition
replace
2 Electric magnetic cluch
has noise
Working face for
bearing and/or
clutch is out of
condition
replace
3 Insufficient
refrigeration
Gasket and/or reed
valve is out of
replace
Chery Automobile Co.,Ltd
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