Yanmar L48N Operation Manual page 84

PERIODIC MAINTENANCE
The engine performance is adversely affected
when the air cleaner element is clogged with
dust. Be sure to clean the air filter element
periodically.
1. Remove the wing nut (Figure 7, (1)).
2. Remove the air cleaner cover (Figure 7, (2)).
(4)
(3)
(2)
(1)
Figure 7
3. Remove the wing nut (Figure 7, (3)).
4. Remove the air cleaner element
(Figure 7, (4)) and outer foam element
(Figure 7, (5)).
5. Blow air through both elements using 0.29−
0.49MPa (3.0−5.0kgf/cm
remove the particulates. Use the lowest
possible air pressure to remove the dust
without damaging the elements.
6. If either element is damaged replace both of
them (they are not sold individually).
Applicable Air Cleaner Element Part No.
L48N
L70N and L100N
7. Clean the inside of the air cleaner cover
(Figure 7, (2)).
8. Install the air cleaner element (Figure 7, (4))
into the air cleaner case.
9. Slide the outer foam element (Figure 7, (5))
over the air cleaner element (Figure 7, (4)).
10. Install the wing nut (Figure 7, (3)) and hand
tighten. Overtightening the wing nut will
damage the air cleaner assembly.
11. Install the air cleaner cover (Figure 7, (2)).
72
(5)
0001549A
) compressed air to
2
114250-12581
114210-12590
12. Install the wing nut (Figure 7, (1)) and hand
tighten. Overtightening the wing nut will
damage the air cleaner assembly.
Replace Engine Oil and Clean /
Inspect Engine Oil Filter
CAUTION
• Only use the engine oil specified.
Other engine oils may affect warranty
coverage, cause internal engine
components to seize, or shorten
engine life.
• Prevent dirt and debris from
contaminating the engine oil. Carefully
clean the oil cap / dipstick and the
surrounding area before you remove
the cap.
• NEVER mix different types of engine
oil. This may adversely affect the
lubricating properties of the engine oil.
• NEVER overfill. Overfilling may result
in white exhaust smoke, engine
overspeed or internal damage.
L-N Operation Manual
0000005en