Air Cleaner Element - Clean, Check And Replace - Mitsubishi Heavy Industries L-Series Operation & Maintenance Manual

Air cleaner element - Clean, Check and Replace

When handling compressed air, wear safety goggles, a dust mask, a hardhat, gloves and other necessary protec-
tive gear. Works without wearing proper protective gear could result in serious injuries.
Never service the air cleaner while the engine is running. Servicing the air cleaner while the engine is running can
cause particles of foreign material to enter the engine and result in rapid wear of parts, leading to a shorter service
life of the engine.Never knock or hit the element.
Cleaning, inspecting and replacing procedure described below is a commonly used procedure. Some application
may be equipped with different air cleaner.
1. Remove the air cleaner cap and wing bolt.
2. Remove the air cleaner element from the body.
3. Blow compressed air (0.69 MPa {7 kgf/cm
psi] or lower) onto the inside surface of the element
to remove foreign materials.
4. To remove dust stuck on the air cleaner element,
blow dry compressed air onto the outside surface
from a distance.
Blow compressed air on the inside surface toward
the outside along the pleats. Then, blow com-
pressed air on the outside and inside surface
again.
5. After cleaning, hold the air cleaner element near a
light bulb to illuminate the inside, to check for de-
fects such as cuts, pinholes or local wear.
6. If any defect is found, replace the air cleaner ele-
ment with a new one.
7. Reassemble the air cleaner element as it is.
If defects such as cuts, pinholes or local wear are
found in the element, or if the air cleaner indicator
shows a red sign soon after the cleaned element is
installed, change it for new one.
After cleaning or replacing the air cleaner element,
press the reset button to reset the indicator.
Chapter 8 PERIODIC INSPECTION AND MAINTENANCE PROCEDURES
2
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Fig. 8-23 Air cleaner element - Clean and Check
Body
Fig. 8-22 Air cleaner element - Remove
Clean
Reset button
Signal
(red)
Fig. 8-24 Air cleaner - Check
Wing
bolt
Air cleaner
element
Check
8-15