OM 25-3503 us – Edition 4.1 * 2503_3503b520.fm 5-11
Maintenance
5.7 Air filter
The filter cartridge will be damaged if it is washed or brushed out!
Bear in mind the following to avoid premature engine wear!
• Do not clean the filter cartridge
• Replace the filter cartridge according to the maintenance plan
• Never reuse a damaged filter cartridge
• Ensure cleanliness when replacing the filter cartridge!
Replace the air filter as indicated in the maintenance plan or if dirt indicator 49 (Tier III) or
indicator lights A and B on the multifunctional display (Tier IV) illuminate.
Information!
The air filter is fitted with an extra inside filter C to protect the engine in case
the outside filter is damaged. In order to avoid engine damage, do not clean
inside filter C, but replace it as indicated in the maintenance plan.
Filter cartridges degrade prematurely when in service in acidic air for longer
periods of time. This risk is present, for example, in acid production facilities,
steel and aluminum mills, chemical plants and other nonferrous-metal plants
• Replace the air filter after 50 operating hours at the latest!
Air filter maintenance:
• Store filters in their original packaging and in a dry place
• Do not knock the filter against other objects as you install it
• Check air filter attachments, air intake hoses and air filters for damage, and immedi-
ately repair or replace if necessary
• Check the screws at the induction manifold and the clamps for tightness
• Check the function of the dust valve, replace if necessary
Fig. 276: Indicator for air filter contamination Tier III
49
Fig. 277: Indicator for air filter contamination Tier IV
A
B
Maintenance
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