Dongfeng DFA1101GZ5AD6J-907. Manual — part 60
Air-conditioner and Heater
BF-23
Oil of the Compressor
Keep enough oil in the compressor.
The lubricating oil and the refriferant circulate in the inner system, when change the component or the oil
leaks a lot, please add the oil to the requirement capacity. If the oil capacity is not proper, the compressor will be
in abnormal condition.
Short of oil: the cylinder of the compressor may be nicked by the piston or the compressor may be locked-up
Excessive oil:the effect of the refrigeration may go down
Capacity of the adding oil
Check the operational function
Its purpose is to check if the system worked under the requirements. These parts need to check: blower(fan),
circulation of the operational-mode( outlet), inlet, temperature lower,and upper, and the A\C switch.
Checking condition:
The engine is running and the temperature is in normal condition.
Approach:
1.Check the blower(fan)
Move the fun switch to the "1" position, the fan
should be in the speed of "1";
Then move to the "2" position;
Check the other speed of the fan;
2.Chexk the ventilation
Move the switch to the
position, check if the air
is blown to your face;
Move the switch to the
position, check if the air
is blown to your face and feet;
Move the switch to the
position, check if the air
is blown to your feet;
Move the switch to the
position, check if the air
is blown to your feet and defrost;
Move the switch to the
position, check if the air is vented from the defroster.
substitute part
capacity (mm)
ratio (%)
evaporator
45~75
30
—
condenser
30~50
20
—
oil storage container
15~25
10
compressor, no change
others
30~50
—
leak a great deal
—
—
leak a little bit
Air-conditioner and Heater
BF-24
3.Check the inlet
Move the switch to the
position, the inner air of
the cab will be used in the circulation.
Move the switch to the
position, the external
fresh air will be blown into the cab by the blower.
4.Temperature lower checking
Move the switch to the lowest position;
Check the cold air from the vent.
5.Temperature upper checking
Move the switch to the highest position;
Check the warm air from the vent.
6.Check the A\C switch
Move the fan switch to the position of 1~4, and press
the air-conditioner switch, the indicator will goes on.
Air-conditioner and Heater
BF-25
Schematic Circuit of Air-condition System
Air-conditioner and Heater
BF-26
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