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24.2.10 CHECK AND ADJUST AIR CONDITIONER
CHECK LEVEL OF REFRIGERANT (GAS)
If the liquid get into your eyes or on your hands, it may cause
loss of sight or frostbite, so never loosen any part of the
refrigerant circuit.
The air conditioning system is equipped with pressure switches
which disable the system if the pressure is too high or low, to prevent
damage to the system.
If the air conditioner fails to operate it may be due to:
a) Low pressure
i) Check for leaks.
ii) Consult your distributor to recharge system.
b) High pressure
i) Check for blockages in piping.
Check in off-season
When not being used for a long period, operate the cooler for 3 to 5 min-
utes once a month to supply lubricant to each component of the compres-
sor.
Inspection and maintenance items list for cooler
Inspection and
maintenance items
Refrigerant (gas)
Condenser
Compressor
V belt
Blower motor
and fan
Control mechanism
Piping for connection
WARNING
Contents
Filling quantity
Clogging of fin
Function
Damage and tension
Function (Check for
normal sound)
Function (Check for
function)
Installation condition
looseness of tightening
connection portion
gas leakage, damage
Maintenance
interval
Twice a year;
spring and autumn
Every 500 hours
Every 4000 hours
Every 250 hours
When required
When required
When required
24. SERVICE PROCEDURE
3-45
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