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GENERAL MACHINE MAINTENANCE
ENGINE AIR INTAKE SYSTEM
The importance of maintaining an air filter cannot be overemphasized. Dirt ingested through improperly in-
stalled, improperly serviced, or inadequate air filter elements wears out more engines than long hours of opera-
tion. Even a small amount of dirt will wear out a set of piston rings in just a few hours. Operating with a
clogged air filter element also causes the fuel mixture to be richer, which can lead to formation of harmful sludge
deposits in the engine. Always cover the air intake when the air filter is removed for servicing. Do not neglect
servicing the air filter. Use only approved replacement parts. Keep all other air intake components such as
hoses and clamps secure and in good condition to prevent entrance of unfiltered air.
Over maintenance can cause more damage than good. Removing the air filter element more often than is
needed allows contaminants to enter the engine unnecessarily.
AIR FILTER
The engine air filter housing includes a dust cap and a dry cartridge type air filter element. The dust cap must
be emptied of dirt daily. The air filter element must be replaced every 75 to 100 hours. The filter element must
be replaced if it is damaged or has been cleaned three times. Replace the engine air filter only when the Yellow
P4713
FIGURE 26
E
D
C
P4599a
FIGURE 27
1-34
NOTE
Monitor the air filter indicator daily
Filter Service Indicator reaches the red band at the top of
the indicator. The yellow indicator will stay at the red band
when the engine is off. Reset the indicator by depressing
the black button at the bottom of the indicator.
TO REPLACE AIR FILTER ELEMENT
1.
brake.
Always park on a level surface, stop the engine, and engage
parking brake before working on the machine to keep it
2.
3.
4.
5.
6.
7.
REMOVING AIR FILTER ELEMENT
A. Filter Housing
A
B. Clamp Ring
C. Filter Element
D. Wing Nut
E. Dust Cap
B
Stop the engine and engage the machine parking
WARNING
from creeping or rolling.
Tilt the hopper forward until it is over the bumper.
Unscrew the clamp ring on the filter.
Remove the dust cap.
Empty the dust cap.
Remove the filter wing nut.
Gently pull the filter element out of the filter housing.
American-Lincoln
3366XP
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