Yanmar BY Series Service Manual page 194

Repair
4. Remove the engine oil dipstick
(Figure 8-6, (1)). Attach an oil drain pump and
pump out the oil. Dispose of waste properly.
5. Remove the engine oil cap and filter assembly.
6. Remove the filter element from stem.
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Figure 8-7
7. Replace the three O-rings (Figure 8-7, (1)) on
the stem.
8. Install a new filter element. Ensure the filter fits
snugly in the filter cap.
9. Install the cap and filter assembly. Tighten cap
by hand until the seal touches the housing.
10. Tighten to 25 N·m (225 in.-lb).
CAUTION
• Only use the engine oil specified.
Other engine oils may affect warranty
coverage, cause internal engine
components to seize and / or shorten
engine life.
• Prevent dirt and debris from
contaminating the engine oil. Carefully
clean the 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.
BY Service Manual
11. Fill with new engine oil.
(1)
12.
13. Perform a trial run and check for oil leaks.
14. Approximately 10 minutes after stopping the
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CAUTION
• NEVER overfill the engine with engine
oil.
• ALWAYS keep the oil level between the
upper and lower lines on the dipstick.
engine, remove the oil dipstick and check the oil
level. Add oil if the level is too low.
LUBRICATION
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8-13