OPERATOR'S STATION
1-31
TIPS FOR OPTIMAL AIR CONDITIONER US-
AGE
For Rapid Cooling
Temperature in the cab may rise over 80
q
C (176
q
F)
when the machine is exposed to sun light in the sum-
mer.
In this case, ventilate air in the cab first by opening the
windows for rapid cooling. After starting the engine,
press AUTO switch (9). Set temperature to
ª
18.0
¼
on
LCD (7) using temperature control switch (11). Turn cir-
culation mode switch (12) ON.
When Windows Become Clouded
If the insides of the windows become clouded during
rainy weather or on humid days, operate the air condi-
tioner to aid in keeping the windows clear. When the
atmosphere is very damp, and if the air conditioner has
run excessively, the outside of the windows may become
clouded. If this happens, turn off the air conditioner to
adjust the temperature in the cab.
Off-Season Air Conditioner Maintenance
To protect each part of the compressor from a lack of
lubricant, operate the air conditioner at least once a
month for several minutes with the engine running at a
slow speed during off-season. When the cab tempera-
ture is lower than 15
q
C (59
q
F), the air conditioner may
not operate. If this happens, warm the cab using the
heater first.
IMPORTANT:
z
zz
z
Do not suddenly increase the engine
speed.
z
zz
z
Refer to the item “Check Air Condi-
tioner Filter” in the Maintenance Sec-
tion for maintenance of the air condi-
tioner filters.
z
zz
z
Always clean the auto air conditioner
sensor for effective air conditioner
performance. Avoid placing any ob-
structions around the sensor.
M178-01-081
M178-01-082
9
11
12
Air Conditioner Sensor
7
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