- Ferris Dual Drive Walk-Behind Mower Operator's Manual

LC-7
Lawn Care & Mowing Information
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
Blades are not sharp or are nicked Sharpen your blades
Blades are worn down too far Replace your blades
Engine speed is too slow Always mow at full throttle
Ground speed is too fast Slow down
Deck is plugged with grass Clean out the mower
Uneven Cutting
Uneven cutting is waviness or smooth troughs in the
lawn surface. Uneven cutting is usually caused by
mower deck damage or misadjustment.
CAUSE SOLUTION
Deck is not leveled correctly Level the deck correctly
Blades are dull or worn Sharpen or replace the blades
Blades are damaged Replace the blades
Deck is clogged with grass clippings Clean out the deck
Deck shell is damaged Repair or replace the deck
Mower spindle is bent or loose Repair or replace the spindle
Blades are installed incorrectly Reinstall the blades correctly
Scalping
Scalping is 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
Lawn is uneven or bumpy Roll or level the lawn
Mower deck cutting height is set too low Raise the cutting height
Ground speed is too fast Slow down
Deck is not leveled correctly Correctly level the deck
Tire pressure is low or uneven Check and inflate the tires
Uneven Cutting
Scalping
Stingers