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2 Troubleshooting
Mowing Troubleshooting Chart
Stingers
Stingers are sparse patches of uncut grass left behind
the mower. Stingers are usually caused by operator
error or poor blade maintenance.
CAUSE SOLUTION SEE SECTION
Blades are not sharp or are nicked Sharpen the blades 3, 18
Blades are worn down too far Replace the blades 6, 18
Engine speed is too slow Always mow at full throttle N/A
Ground speed is too fast Slow down N/A
Deck is plugged with grass Clean out the mower N/A
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Uneven Cutting
Uneven cutting is waviness or smooth troughs in the
lawn surface. Uneven cutting is usually caused by
mower deck damage or mis-adjustment.
CAUSE SOLUTION SEE SECTION
Deck is not leveled correctly Level the deck correctly 4, 18
Blades are dull or worn Sharpen or replace the blades 3, 6, 18
Blades are damaged Replace the blades 6, 18
Deck is clogged with grass clippings Clean out the deck N/A
Deck shell is damaged Repair or replace the deck 18
Mower spindle is bent or loose Repair or replace the spindle 18
Blades are installed incorrectly Reinstall the blades correctly 6, 18
Scalping
Scalping occurs when the mower deck comes close to or
hits the ground. Scalping can be caused by the mower
deck misadjustment, unevenness in the lawn, or by
mower deck bouncing because the ground speed is too
fast.
CAUSE SOLUTION SEE SECTION
Lawn is uneven or bumpy Roll or level the lawn N/A
Mower deck cutting height is set too low Raise the cutting height N/A
Ground speed is too fast Slow down N/A
Deck is not leveled correctly Correctly level the deck N/A
Tire pressure is low or uneven Check and inflate the tires 3, 18
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Uneven Cutting
Scalping
Stingers
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