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.