1.
Start the engine, and set the engine throttle
lever to the middle speed position.
2.
See the right table for reference.
(1) Temperature Adjustment Switch: C
(Lowest)
Door: Closed
Window: Closed
(2) Fan Speed Selector Switch: 3 (High)
(3) Air Conditioner Switch: ON
3.
Determine the refrigerant volume based on
the following checks by looking through
the sight glass (inspection window) on the
receiver dryer.
(Figure (A): The refrigerant volume is
proper.
(Figure (B): The refrigerant is over charged.
This will make both high and low pressure
rise and have an adverse effect on the
pressure switch operation and the air
conditioning system.
(Figure (C): The refrigerant is insufficient.
Contact KOBELCO authorized
8
8.2.9
CHECKING THE AIR CONDITIONER REFRIGERANT
Do not loosen parts in the refrigerant circuit because there is a hazard of losing sight by getting
coolant in eyes and being frostbitten hands by touching it.
Inhalation of the refrigerant may result in fatal injury. 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 and quantity: R-134a/590 g±50 g)
The use of unspecified refrigerant may cause damage of components.
HOW TO CHECK
[
8. OPTIONAL EQUIPMENT
]
8-21
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