OM 803 us – Edition 3.7 * 803b520.fm
5-13
Maintenance
Air filter (up to serial no. AI00875)
Replace the air filter elements:
• If the yellow piston
B
in dirt indicator
A
reaches the red service mark
C
.
• Every 1000 operating hours or once a year at the latest.
General instructions for air filter maintenance:
• Store filter elements in their original packaging and in a dry place.
• Do not knock the filter element against other objects as you install it.
• Check air filter attachments, air intake hoses and the air filter element for damage, and
immediately have them repaired or replaced if necessary.
• Check the screws at the induction manifold and the clamps for tightness.
• Check the discharge slot of the dust valve, clean it and replace it if necessary.
☞
Squeeze the end of the valve with your hand.
Replacing air filter elements
• Replace air filter element
D
as follows:
☞
Stop the engine
☞
Raise the lock lever
☞
Remove the starting key and carry it with you
☞
Let the engine cool down
☞
Open the engine cover
☞
Remove dirt and dust from the air filter element and the area around the air filter
☞
Open bow clips
H
on housing section
E
☞
Remove housing section
E
☞
Carefully remove air filter element
D
with slightly turning movements
☞
Ensure that all contamination (dust) inside the housing section and dust valve has been
removed
☞
Clean the parts with a clean lint-free cloth, do not use compressed air
☞
Check the air filter element for damage, only install intact air filter elements
☞
Carefully insert the new air filter element
D
in housing section
F
☞
Position housing section
E
(ensure that it is properly seated)
☞
Close bow clips
H
Fig. 196: Air filter element
D
C
B
A
Fig. 197: Removing the housing section
Fig. 198: Removing the air filter element
H
E
D
G
F
