Komatsu WA250-5 Service Manual

.
MAINTENANCE
SERVICE PROCEDURE
CHECK AIR CONDITIONER
CHECK LEVEL OF REFRIGERANT (GAS)
If
the
refrigerant
used
in
the
cooler
gets
into
your
eyes
or
on
your
hands,
it
may
cause
loss
of
sight
or
frostbite.
Do
not
touch
the
refrigerant.
Never
loosen
any
part
of
the
refrigerant
circuit.
Do
not
bring
any
flame
close
to
any
point
where
the
refrigerant
gas
is
leaking.
If there is a lack of refrigerant (gas), the cooling performance will be
poor. When operating the cooler at high speed with the engine at
full throttle, use the receiver sight glass (inspection window) to
check the condition of the refrigerant gas (Freon R134a) flowing in
the refrigerant circuit.
No bubbles in refrigerant flow: Suitable
Some bubbles in flow (bubbles pass continuously): Lack of
refrigerant
Colorless, transparent: No refrigerant
REMARK
When there are bubbles, the refrigerant gas level is low, so contact your refrigerant dealer to have refrigerant added.
If the air conditioner is run with the refrigerant gas level low, it will cause damage to the compressor.
OPERATING THE AIR CONDITIONER OFF SEASON
Even during the off-season, operate the air conditioner for 3 - 5 minutes once a month to maintain the oil film at all
parts of the compressor.
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Komatsu WA250-5 Specifications

General

Brand	Komatsu
Model	WA250-5
Category	Front End Loaders
Language	English