Hitachi ZAXIS 450LC-3, Operator'S Manual

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MAINTENANCE
7-77
ZX850LC
-3
Clean the Air Cleaner Outer Element
--- every 250 hours or when the restriction indicator
comes ON
Replace the Air Cleaner Outer and Inner Elements
-- after cleaning six times or after one year
1. Park the machine on a level surface.
2. Lower the bucket to the ground.
3. Turn the auto-idle switch off.
IMPORTANT: The turbocharger may be damaged if the
engine is not properly shut down.
4. Run the engine at slow idle speed without load for five
minutes.
5. Stop the engine. Remove the key from the key switch.
6. Pull the pilot control shut-off lever to the LOCK position.
7. Loosen clamps (3) to remove cover (2).
IMPORTANT: Do not install the element and/or the cover
forcibly when installing clamps (3). Failure
to do so may result in deformation of
clamps (3), element, and/or cover (2).
8. Remove outer element (1).
9. Tap outer element (1) with the palm of your hand, NOT
ON A HARD SURFACE.
d
WARNING: Use reduced compressed air pressure.
(Less than 0.2 MPa, 2 kgf/cm
2
). Clear area of
bystanders, guard against flying chips, and wear
personal protection equipment including goggles or
safety glasses.
10. Clean outer element (1) using compressed air. Direct the
air to the inside of the filter element, blowing out.
11. Clean the filter interior before installing outer element
(1).
12. Install outer element (1).
13. Install cover and tighten clamps (3).
14. Start the engine and run at slow idle.
16. Check the air filter restriction indicator on the monitor
panel. If the air filter restriction indicator comes ON, stop
the engine and replace outer element (1).
17. When replacing the air cleaner filter element, replace both
outer and inner elements (1), (4) together. Slowly remove
inner element (4) after removing outer element (1).
M1JB-07-032
M1JB-07-034
M1JB-07-033
3
3
1
2
4
1
2