
Start the engine, raise and lower the mower
units, and turn the steering wheel right and
left.
Move forward and reverse repeatedly
several times.
Raise the mower units and maintain that
position on a level surface, and then check
to see if the oil level is at the middle of the
oil gauge. If necessary, supply oil.
Check underneath the machine for
hydraulic oil leakage.
Install the tank cover.
Air Cleaner
Inspection of Air Cleaner
The air cleaner is a component that removes
dirt from the intake air to prevent wear of the
cylinder liners and piston rings so that the
engine will always operate smoothly.
A contaminated air cleaner element may
cause malfunction of the engine.
Inspect the air cleaner by checking the
vacuum indicator.
If the air cleaner element is contaminated,
the vacuum indicator will display a red ring.
2
1
pd9d4r-016
Inspection of Air Cleaner_001
1
Air cleaner
2
Vacuum indicator
Make sure that there is no damage to the
air cleaner.
Make sure that the air cleaner element is
not contaminated.
3.
4.
5.
6.
1.
2.
3.
Cleaning of Air Cleaner
A contaminated air cleaner element may
cause malfunction of the engine.
To maximize the life of the engine, clean the
air cleaner properly.
Follow the steps below to clean the air
cleaner.
Release the clips, remove the air cleaner
cap, and then remove the air cleaner
element.
While paying close attention not to
damage the air cleaner element, tap a
solid portion of the air cleaner element or
blow compressed air from its inside to
remove dust and dirt.
If the air cleaner element is extremely
contaminated, replace it with a new one.
Attach the air cleaner element to the air
cleaner body.
Attach the air cleaner cap, and then fix it
securely with the clips.
5
3
4
1
2
yt4sup-016
Cleaning of Air Cleaner_001
1
Air cleaner element
2
Clip
3
Air cleaner cap
4
Air cleaner body
5
Vacuum indicator
1.
[1]
[2]
[3]
[4]
LM551
Handling Instructions
Page 4-6
Inspection Before Use
Summary of Contents for LM551
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Page 12: ...LM551 Safety Page 1 6 Safe Operating Practices...
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