Takeuchi TB 250, Workshop Manual

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4
AIR CONDITIONER
DISASSEMBLY AND ASSEMBLY
Inspection point Check item
Maintenance interval
Daily inspection Monthly Every 6 months
Replacement
interval
Condenser Clogging, dirt Yes Yes
Belt Slack, damage Yes Every 2 years
Refrigerant gas Refrigerant level Yes
Piping
Looseness, damage,
leak
Yes
Receiver-dryer –– Every 2 years
Cautions on maintenance
To use an air conditioner efficiently and comfortably, per-
form inspection and maintenance of the machine on a reg-
ular basis. For cases that require a special tools or instru-
ments, such as for adding refrigerant gas, consult Takeuchi
or your service or sales dealer for assistance.
Run the air conditioner 2 to 3 times a month during the
season when it is not in use to prevent the oil from drying
up in the compressor. Check for refrigerant gas leaks at the
same time. Leaving the air conditioner for extended periods
of time while oil is leaking will cause internal parts to rust
and will eventually cause a breakdown.
Checking the refrigerant
Set the air conditioner temperature to COOL MAX, raise
the engine speed, and then check the refrigerant condi-
tion in the refrigerant circuit through the sight glass of the
receiver-dryer.
a. Flow includes no bubbles: Proper level
b. Flow contains bubbles: Low level
c. Flow is clear and colorless: No refrigerant
IMPORTANT
The presence of bubbles indicates that the system is
low on refrigerant. Immediately add refrigerant to avoid
damage to the compressor.
Inspection and maintenance interval