Hitachi ZAXIS 30U-5N Operator's Manual page 274

Clean Fresh Air Filter
--- every 500 hours
Replace Fresh Air Filter
--- After cleaning 6 times or so
ZX60USB-5N
Removing Fresh Air Filter
1. Pull out fresh air filter (1) upward, which is located at
bottom left of the seat.
Cleaning
IMPORTANT: Clean filter (3) by using a vacuum cleaner.
Do not clean it by blowing compressed air or washing
with water.
1. With side "a" of filter (1) facing downward, lightly tap the
filter (1) frame to let large dirt drop.
2. Clean side "a" of filter (1) by using a vacuum cleaner.
Installation
IMPORTANT: Inappropriate installation of the filter
may cause dust to enter into the heater unit or air
conditioner, causing malfunction or breakdown of
them. Before installing the filter element, clean off
dust around the mounting area; install the filter
element with extra care.
Install the fresh air filter straightly into the fresh air filter
mounting case.
MAINTENANCE
1
7-94
1
a
MADC-07-023
MADC-07-024
MADC-07-025