Chery A15. Manual - part 145

 

Continued 

Insufficient 

cooling or 

air flow 

(10) Excessive coolant 

(11) Air in cooling system 

(12) 

Condenser fin blocked or deformed

(13) Radiator fan defect 

(14) Water in cooling system 

(15) Throttle blocked (CCOT valve) 

(16) Low compressor speed 

(17) Compressor not working 

 

 

(18) High-pressure pipe flattened or 

part blockage 

(10) Drain some coolant 

(11) Vacuumize system and add new coolant 

(12) Clean or replace condenser 

(13) Check fan motor and circuit to eliminate fault 

(14) Replace coolant tank and repeat vacuumizing 

(15) Replace  throttle 

(16) Check and adjust driving belt M 

(17) Check compressor, electromagnetic clutch and 

high pressure, low pressure protection switch 

and eliminate fault 

(18) Clean or replace part 

Abnormal 

sound of 

compressor 

(1) Electromagnetic clutch skidding 

or damage 

(2) Insufficient or excessive coolant 

(3) Compressor bearing loose or 

 worn out 

(4) Low cooling oil level in compressor 

(5) Internal wear or damage 

(1) Adjust electromagnetic clutch clearance and   

check electromagnetic clutch coil 

(2) Add coolant as required 

(3) Replace compressor bearing 

 

(4) Add cooling oil 

(5) Replace compressor part or the whole assembly 

 

 

 

 

 

 

 

Section Ten: Special Tools

 

 

Air conditioner maintenance tool pack 

 

 

Service valve for coolant drainage 

 

 

Coolant adding gauge 

 

 

Coolant adding hose 

 

Green 

Coolant adding hose 

 

Blue 

Coolant adding hose 

 

Orange 

Disconnecting valve 

 

 

Adding hose set with disconnecting valves 

 

Please order the whole 

set for disconnecting 

valves

 

Electromagnetic clutch removal tool 

 

 

Electromagnetic clutch retainer 

 

 

Spring ring pliers 

 

 

Spring ring pliers 

 

 

Sealing lip protection 

 

 

Section Eleven: Introduction to Cooling System Parts 

 

(I). Compressor 

Chery A15 car equipped with electric-controlled fuel injection engine uses SD7V16 

compressor, whose performance parameters are listed in the table below. 

 

Structure Swashplate 

Number of cylinders 

7 

Cylinder diameter (mm) 

29.3 

Stroke (mm) 

max 

min 

 

34.2 

2.2 

Displacement (cm³/r) 

max 

min 

 

161.3 

10.4 

Max. instantaneous rotation speed allowed (r/min)

8000 

Max. continuous rotation speed allowed (r/min) 

7000 

Coolant R134a 

Cooling oil volume (cm³) 

115±15 

Electromagnetic clutch mass (kg) 

2.2 

Rated voltage (V) 

12 

Rated power (W) 

48 

 

Compressor is driven by engine crankshaft belt wheel through belt M. When the shift lever on 

air conditioning control mechanism is placed at cooling position, the electromagnetic clutch 

of compressor is engaged, and the main shaft and swashplate are rotated by compressor belt 

wheel to activate rocking plate, which rocks to motivate piston and compress low-temperature 

and low-pressure gas coolant into high-pressure and high-temperature gas coolant.