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Clean or replace the air filter frequently. Mulching
stirs up more clippings and dust which clogs the air
filter and reduces engine performance.
To achieve the best mulching action, set the lawn
mower cutting height so the lawn mower cuts no more
than a third of the grass blade or a maximum of
one-inch- (25 mm) long clippings. If you try to mulch
more or if the grass is very lush, the mulching action
will be poor. Under these conditions, use the side
discharge or grass catcher. A few days later, install the
mulch plate on your lawn mower to resume mulching.
Cutting Grass
In the summer heat, cut the grass at the 2, 2-1/2, or
3-inch (51, 64, or 76 mm) cutting height settings. Only
cut off about one-third of the grass blade. Do not cut
below the two-inch setting unless the grass is sparse or
it is late autumn when the grass growth begins to slow
down.
When cutting grass over six inches (15 cm) tall, first
mow using the highest cutting height setting and
walking slower; then mow again at a lower setting for
best lawn appearance. If the grass is too long and
leaves clumps on top of the lawn, the lawn mower may
plug up and cause the engine to stall.
Alternate the mowing direction. This helps disperse
clippings over the lawn for even fertilization.
If the finished lawn appearance is unsatisfactory, try one
or more of the following:
Maintenance
Recommended Maintenance Schedule
Service Item
Check the engine oil before each use.
Drain and fill the engine crankcase with
Engine Oil
fresh oil after the first five hours of
operation. Thereafter, change the oil
every 50 operating hours or yearly.
Housing
Clean built-up grass clippings and dirt.
Check the blade and the engine mounting
Fasteners
fasteners. Keep all fasteners tight to keep
the lawn mower in safe working condition.
Replace the pre-cleaner every 25 hours
Air Filter—
or each mowing season. Replace it more
Pre-cleaner
frequently in dusty or dirty conditions.
Service Operation
11
Sharpen the blade.
Walk at a slower pace while mowing.
Raise the cutting height on your lawn mower.
Cut the grass more frequently.
Overlap cutting swaths instead of cutting a full swath
with each pass.
Set the cutting height on the front wheels one notch
lower than the rear wheels.
Cutting Leaves
After cutting the lawn, make sure that half of the lawn
shows through the cut leaf cover. You may need to
make one or more passes over the leaves.
For light leaf coverage, set all the wheels at the same
cutting height setting.
If there are more than five inches (12.7 cm) of leaves
on the lawn, set the front wheels one or two notches
higher than the rear wheels. This makes it easier to
feed the leaves under the lawn mower deck.
Slow down your mowing speed if the lawn mower
does not cut the leaves finely enough.
If you mow over oak leaves, you can add lime to the
grass in the spring to reduce the acidity of the leaves.
Each
5
Use
Hours
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X
X
25
50
100
Hours
Hours
Hours
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X
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