Air Conditioner; Clean/Replace Air Conditioner Circulation/Fresh Air Filters - Hitachi ZW 370-6 Operator's Manual

K. Air Conditioner
Clean/Replace Air Conditioner Circulation/Fresh Air
Filters
Clean filters --- every 100 hours (or once a week
whichever come first)
Replace filter --- after cleaning filters 10 times (or
when the filters are severely clogged)
Clean Fresh Air Filter
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.
2. Loosen wing nuts (3) and remove plate (2).
3. Remove fresh air filter (4).
d
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 (2 kgf/cm
 Keep the nozzle more than 500 mm (20 in) away
from the core surface.
4. Clean fresh filter (4) using compressed air.
MAINTENANCE
, 30 PSI).
2
4
7-99
1
92Z7-7-88
2
3
MNEC-07-043