Great Wall hover - Noise of the Air Cooling System; Precautions for the Overhaul of Air Cooling System; The Cooling System Sometimes Works While Sometimes Refuses to Work

CD Player and Air Conditioning System-12
e . Precautions for the overhaul of air cooling system
When the air cooling system encounters the trouble, the cause for such trouble shall be analyzed inlightof trouble varieties,
followed with the examination and report work.
c. T he cooling system sometimes works while sometimes refuses to work.
Trouble Descriptions Analysis of the Cause
1. compressor works normally
1. ice block in the cooling syste
m
2. failure of thermal resistor or temperature sensing bul
b
3. poor contact of A/C switch
4. condensing blower damage
d
The cooling system
sometimes produce
s
refrigeration effect whil
e
sometimes not
.
compressor works improperly
1.
slide of the clutch
2. coming off of the clutch’s windin
g
3. poor earthing of clutch’s windin
g
d. Noise of the air cooling system
Trouble Descriptions A nalysis of the Cause
Noise of the air cooling system too
loud
Noise too loud
(1) belt too
loose or worn too much
(2) fastening screw of mounting holder of the compresso
r
loosened
(3) mounting holder of the compressor damaged
(4) internal parts of the compr
essor damaged
(5) too much refrigeration oil or none
(6).
slide of the clutch
(7). B earing of the clutch running short of oil or damage
d
(8). motor bearing of the blower damaged
(9) holder of the blower broken or
loosened
(10) blade of the blower broken or
loosened
(11). Friction of the blower’ s blade with other components