Country Clipper CHALLENGER D510, Product Manual, Page: 43 / 96

6.3
Common Cut Quality Problems
Problem:
Streaking
Problem:
Stringers
Streaking is when thin strips of uncut grass are left after mowing.
Streaking commonly occurs by operator error or poor blade
maintenance
.
Stringers are sparse patches of uncut grass left behind in the
lawn surface. Stringers commonly occur by operator error or
poor blade maintenance.
Cause Remedy Cause Remedy
Blades not sharp. Sharpen blades. Blades not sharp. Sharpen blades.
Blades worn down. Replace blades. Blades worn down. Replace blades.
Engine speed too low. Operate engine @ full throttle. Engine speed too low. Operate engine @ full throttle.
Ground speed too fast. Slow down. Ground speed too fast. Slow down.
Deck plugged w/ grass. Clean mower deck. Deck plugged w/ grass. Clean underside of mower deck.
Not overlapping cutting
rows enough.
Increase overlap when cutting.
Not overlapping enough
when turning.
Effective cutting width decreases when
turning; increase overlap when turning.
Problem: Scalping Problem: Uneven Cutting
Scalping is when the mower blade comes close to or hits the ground.
Scalping typically occurs due to deck maladjustment, uneven lawn, or
by deck bounce at high ground speed.
Uneven Cutting is waviness or smooth troughs in the lawn
surface. Uneven Cutting typically occurs due to mower deck
damage or maladjustment.
Cause Remedy Cause Remedy
Lawn uneven or bumpy. Roll or level lawn. Deck level correct. Correct deck level.
Cut height too low. Raise cutting height. Blades worn or dull. Sharpen or replace blade.
Ground speed too fast. Slow down. Blades damaged. Replace blades.
Deck level incorrect. Correct deck level. Deck plugged w/ grass. Clean underside of mower deck.
Tire improperly inflated. Inflate to proper air pressure. Deck shell is damaged. Repair or replace deck shell
Deck Floating Decrease Deck Lift Assist Spring
Tension and raise cut height.
Blade spindle bent or
loose.
Repair or replace spindle.
Tire(s) improperly
inflated.
Inflate to proper air pressure.
Blades installed wrong. Reinstall blades correctly.
Problem: Stepped Cutting
Stepped Cutting is when sharp ridges or uneven levels are present on the lawn surface. Stepped Cutting typically occurs when the deck
is misadjusted or damaged, or the mower blade(s) are damaged.
Cause Remedy
Deck level incorrect. Correct deck level.
Tire(s) improperly
inflated.
Inflate to proper air pressure.
Blades damaged. Replace blades.
Deck shell is damaged. Repair or replace deck shell
Blade spindle bent or
loose.
Repair or replace spindle.
Blades installed wrong. Reinstall blades correctly.
Deck floating. Adjust Deck Lift Assist Spring-Set
both springs equally.