Tips For Optimal Air Conditioner Usage - Hitachi ZW180 Operator's Manual

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. For rapid
cooling, ventilate air in the cab first.
After starting the engine, set the temperature control to
maximum cooling (18°C, 65°F) using temperature control
switch (9). Then turn circulation mode switch (14) ON (the
indicator lights).
Select the front/rear/defroster vent mode
mode switch (10). Set the blower speed to the maximum
flow rate (6 segments lit) by operating blower switch (7).
Then, turn air conditioner switch (12) ON (the indicator
lights).
After running the engine at a little over 1000 min
minutes, press AUTO switch (11) and close the windows.
When Windows Become Clouded
If the insides of the windows become 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, the out-
side 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 lubri-
cant, 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 hap-
pens, warm the cab using the heater first.
IMPORTANT: • Do not suddenly increase the engine speed.
• Keep any flames away from the control
panel.
• Refer to the item "Check Air Conditioner
Filter" in the Maintenance Section for main-
tenance of the air conditioner filters.
• Always clean the auto air conditioner sen-
sor for effective air conditioner perfor-
mance. Avoid placing any obstructions
around the sensor.
OPERATOR'S STATION
by operating
-1
for a few
1-46
7 8
14
9 10 11
12
M178-01-017