Air Conditioner; Clean/Replace Air Conditioner Circulation/Fresh Air Filters - Hitachi ZW180 Operator's Manual

K. Air Conditioner
1
Clean/replace air conditioner circulation/fresh air
filters
Clean filters --- every 100 hours (once a week which-
ever come first)
Replace filter --- after cleaning filters 10 times
Clean fresh air filter
WARNING: When using compressed air pressure, wear
safety glasses or goggles.
IMPORTANT: If compressed air delivery pressure is high,
damage to the filter fins may result. Always
use compressed air at the lower pressure
than 0.2 MPa (2kgf/cm
more than 500 mm away from the core sur-
face.
1. Remove the filter:
The fresh air filter is installed behind cover (1) on the
left rear side of the cab exterior. Open cover (1) with the
starter key. Press the under side of angle (2) and remove
notch (4) from stopper (3). Slide the angle toward the left
side. After raising angle (2), remove fresh air filter (5).
2. Clean fresh filter (5) using compressed air or by washing
with water. Washing procedure with water is as follows:
2.1 Use tap water.
2.2 Submerge the filter in water containing a neutral deter-
gent for about 5 minutes.
2.3 Clean the filter with water again.
2.4 Sufficiently dry the filter.
3. Install the cleaned fresh air filter or a new filter by follow-
ing the filter removal procedure described in step 1 in the
reverse order.
(or when the filters are severely
clogged)
2
). Keep the nozzle
MAINTENANCE
2
7-90
4
5
1
M4GB-07-105
Press
3
M4GB-07-106
M4GB-07-107