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4.17.8
CHECKING AIR CONDITIONER REFRIGERANT
REFRIGERANT
• Do not loosen the parts in the refrigerant circuit because there is a hazard of losing sight by getting refrigerant in
your eyes and getting frostbite on your hands by touching it.
• Inhalation of the refrigerant may result in fatal injury. Also, do not bring a fire near the area where refrigerant gas
is produced.
• When filling or changing refrigerant, confirm the type of refrigerant and use the specified refrigerant.
(Refrigerant type: R-134a Quantity: 780 g ± 50 g (1.72 lbs ± 0.11 lbs))
The use of unspecified refrigerant may cause damage of the components.
• Operate the air conditioner at least once every week for several minutes to rotate the compressor regardless of
the season. This will prevent the refrigerant gas from leaking from the compressor sealing.
• If an oil stain is found around a pipe joint, it is a sign of gas leakage. Contact your KOBELCO authorized dealer
for inspection.
Be sure to follow the following regulations to protect the global environment.
• Do not release the refrigerant sealed in this product to the atmosphere without care.
• Extract the sealed refrigerant from the unit when disposing this product.
1.
Start the engine, and set the engine speed to the middle speed position of the engine throttle.
2.
Fully open the windows of the cab and the doors.
3
1,2
4
1
3.
Set the air conditioner as shown in the following.
(1) Air conditioner control: ON
(2) Fan speed selector switch: HI display
(3) Temperature setting switch: MAX COLD
(4) Air conditioner switch: ON
5
4.
Check the amount of the refrigerant by seeing sight
glass (inspection window) (5).
See the figure of "Condition of Sight Glass" for
judging whether the refilled refrigerant volume is
sufficient or not.
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