5. Place a new replacement filter in a shallow pan with
the open end up. Pour new oil, of the proper type, in
through the threaded center hole. Stop pouring
when the oil reaches the bottom of the threads.
Allow a minute or 2 for the oil to be absorbed by the
filter material.
6. Apply a thin film of clean oil to the rubber gasket on
the new oil filter.
7. Install the new oil filter to the filter adapter. Hand
tighten the filter clockwise until the rubber gasket
contacts the adapter, then tighten the filter an
additional 1/2 to 3/4 turn.
8. Fill the engine with the proper oil to the
“FULL”
or
“F”
mark on the dipstick. Always check the oil level
with the dipstick before adding more oil.
9. Reinstall the oil fill cap/dipstick and tighten securely.
10. Start the engine and check for oil leaks. Recheck oil
level before placing the engine into service.
Stop the engine, correct any leaks, and allow a
minute for the oil to drain down, then recheck the
level on the dipstick.
NOTE :
• To prevent extensive engine wear or
damage, always maintain the proper oil level
in the crankcase. Never operate the engine
with the oil level below the “ADD” or “L”
mark or above the “FULL” or “F” mark on
the dipstick.
(1) Engine oil filter
(A) “MOUNTING SURFACE”
5. Checking the muffler and spark
arrester (if equipped)
WARNING
Running engines produce heat. Engine parts,
especially the muffler, become extremely hot.
Severe thermal burns can occur on contact.
Combustible debris, such as leaves, grass, brush,
and so on. can catch fire.
To avoid serious injury or death:
• Allow the muffler, engine cylinder and fins to
cool before touching.
• Remove accumulated debris from the muffler
area and cylinder area.
• It is a violation of California Public Resource
Code, Section 4442, to use or operate the
engine on any forest-covered, brush-covered,
or grass-covered land unless the exhaust
system is equipped with a spark arrester, as
defined in Section 4442, maintained in effective
working order. Other states or federal
jurisdictions may have similar laws. Contact the
original equipment manufacturer, retailer, or
dealer to obtain a spark arrester designed for
the exhaust system installed on this engine.
• Replacement parts must be of the same design
and installed in the same position as the
original parts. Other parts may not perform as
well, may damage the unit, and may result in
injury.
1. Remove accumulated debris from the muffler and
cylinder area.
2. Inspect the muffler for cracks, corrosion, or other
damage.
3. Remove the spark arrester, if equipped, and inspect
for damage or carbon blockage.
4. If damage is found, install replacement parts before
operating.
EVERY 100 HOURS
1. Changing the engine oil (Z231KH-
AU, Z251KH-AU)
WARNING
To avoid serious injury or death:
• Be sure to stop the engine and remove the key
before changing the oil.
• Allow the engine to cool down sufficiently, as
oil can be hot and may cause burns.
EVERY 50 HOURS
PERIODIC SERVICE
Z231BR-AU,Z231KH-AU,Z251BR-AU,Z251KH-AU
53
Summary of Contents for Z231BR-AU
Page 7: ...4 Z231BR AU Z231KH AU Z251BR AU Z251KH AU ...
Page 13: ...SAFETY LABELS SAFE OPERATION 10 Z231BR AU Z231KH AU Z251BR AU Z251KH AU ...
Page 14: ...SAFE OPERATION Z231BR AU Z231KH AU Z251BR AU Z251KH AU 11 ...
Page 15: ...SAFE OPERATION 12 Z231BR AU Z231KH AU Z251BR AU Z251KH AU ...
Page 16: ...SAFE OPERATION Z231BR AU Z231KH AU Z251BR AU Z251KH AU 13 ...
Page 85: ...wheels 38 82 Z231BR AU Z231KH AU Z251BR AU Z251KH AU ...
