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17
DANGER
POTENTIAL HAZARD
♦ If the discharge door does not close
completely, the lawn mower could throw
objects.
WHAT CAN HAPPEN
♦ Thrown objects can result serious
personal injury or death to the operator or
bystanders.
HOW TO AVOID THE HAZARD
♦ Never open the door to the discharge
opening when the engine is running.
♦ If you cannot close the door because
grass clippings clog the discharge area,
stop the engine and clear the obstruction
with a stick, not your hand, until you can
close the door completely.
3.3.10 Operating Tips:
• Review the Safety Instructions (Section 1) and read this manual carefully
before operating the lawn mower.
• Set the engine speed to the fastest position for the best cutting results.
• Maintain a sharp blade throughout the cutting season. Periodically file down
nicks on the blade. Replace the blade when necessary with an original
Exmark replacement blade.
• Clean the air filter frequently. Mulching stirs up more clippings and dust
which clogs the air filter and reduces engine performance.
Cutting Grass
:
• Grass grows at different rates at different times of the year. In the summer
heat, it is best to cut grass at the 2-1/2 inch (64 mm), 3 inch (76 mm), or 3-
1/2 inch (90 mm) cutting height settings. Cut only about a third of the grass
blade at a time. Do not cut below the 2-1/2 inch (64 mm) setting unless the
grass is sparse or it is late fall when grass growth begins to slow down.
• When cutting grass over 6 inches (15 cm) tall, first mow at the highest cutting
height setting and walk slower; then mow again at a lower setting for the best
lawn appearance. If the grass is too long and the leaves clump on top of the
lawn, the lawn mower may plug and cause the engine to stall.
• Alternate the mowing direction. This helps disperse the clippings over the
lawn for even fertilization.
If the finished lawn appearance is unsatisfactory, try one or more of the following:
• 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. For example, set the front wheels at 2-1/2 inches (64 mm) and the
rear wheels at the 3 inches (76 mm).