Hitachi ZAXIS 30U-5N User Manual

OPERATOR'S STATION
1-51
Tips for Optimal Air Conditioner Usage
For Rapid Cooling
Temperatureinthecabmayriseover80°C(176°F)whenthe
machineisexposedtosunlightinthesummer.
In this case, ventilate air in the cab first by opening the
windows for rapid cooling.
After starting the engine, set the temperature control
toward the far left end using temperature control switch (9).
Setmodeswitch(11)to the right front and rear vents.
Setblowerswitch(8)attheslowspeedposition.Turnair
conditionerswitch(7)ON.
Afterrunningtheengineatslightlyfasterspeed(1300to
1400 min
-1
[rpm]orhigher)for2to3minutes,increasethe
blower speed.
Close the window when the cab cools down to the ambient
temperature.
When Windows Become Clouded
If inside of the windows becomes clouded during rainy
weather or on humid days, operate the air conditioner to aid
inkeepingthewindowsclear.
Whentheatmosphereisverydamp,andiftheair
conditionerhasrunexcessively,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temperatureislowerthan15°C(59°F),theair
conditioner may not operate. If this happens, warm the cab
using the heater first.
IMPORTANT:
Do not suddenly increase the engine speed. Failure
to do so may damage the compressor.
Keep open flames away from the control panel.
Refer to the item "Clean and Replace Heater/Air
Conditioner Filter" in the Maintenance Section for
maintenance of filters.
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11
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MADB-01-066

Hitachi ZAXIS 30U-5N Specifications

General

Brand	Hitachi
Model	ZAXIS 30U-5N
Category	Excavators
Language	English