Ferris Industries is1000zkav21-48 ユーザーズマニュアル

LC-7

Lawn Care & Mowing Information

Stingers are sparse patches of uncut grass left behind
the mower.  Stingers are usually caused by operator
error or poor blade maintenance.

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 is waviness or smooth troughs in the
lawn surface.  Uneven cutting is usually caused by
mower deck damage or misadjustment.

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 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.

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