Ferris IS4500ZBL3561 Operator's Manual page 49

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
Deck is not leveled correctly
Blades are dull or worn
Blades are damaged
Deck is clogged with grass clippings
Deck shell is damaged
Mower spindle is bent or loose
Blades are installed incorrectly
Stingers
Stingers are sparse patches of uncut grass left behind
the mower. Stingers are usually caused by operator
error or poor blade maintenance.
CAUSE
Blades are not sharp or are nicked
Blades are worn down too far
Engine speed is too slow
Ground speed is too fast
Deck is plugged with grass
S t i n g e r s
Lawn Care & Mowing Information
SOLUTION
Level the deck correctly
Sharpen or replace the blades
Replace the blades
Clean out the deck
Repair or replace the deck
Repair or replace the spindle
Reinstall the blades correctly
SOLUTION
Sharpen your blades
Replace your blades
Always mow at full throttle
Slow down
Clean out the mower
LC-7