101PERIODIC SERVICE
BChecking the Amount of Refrigerant (gas)
To avoid personal injury:
A Liquid contact with eyes or skin may cause
frostbite.
A In the event of a leakage, wear safety goggles.
Escaping refrigerant can cause severe injuries
to eyes.
A In contact with a flame, R134a refrigerant gives
a toxic gas.
A Do not disconnect any part of the refrigeration
circuit of the air conditioning system. Consult
your local KUBOTA Dealer for assistance and
service.
A shortage of refrigerant impairs the air-conditioner
performance. Check the following points. If it is indicated
that the amount of refrigerant is extremely low, ask your
dealer to inspect and charge.
C Checking procedure
1. Run the air-conditioner in the following conditions.
2. Look into the sight glass to see if the refrigerant is
flowing through its circuit.
A Charge only with R134a not R12 refrigerant (gas).
A Engine speed: About 1500 rpm
A Temperature control dial: Maximum cooling position
A Fan switch: Highest blow (HI)
A Air-conditioner switch: ON
(1) Sight glass
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