Product Manual

RemedyCauseProblem
Move transmission
release lever(s) to the
"drive" position.
Transmission release
lever(s) in "free-wheel"
position
Engine runs, but rider will
not drive
Replace belt. See
Transmission Drive Belt
Replacement.
Belt is broken.
See problem and cause
below.
Drive belt slips.
See authorized dealer.Brake is not fully
released.
Clean as required.Pulleys or belt is greasy
or oily.
Rider drive belt slips
Adjust the spring tension.
See Transmission Drive
Belt Replacement.
Tension too loose.
Replace belt.Belt stretched or worn.
See Parking Brake
Adjustment.
Brake is incorrectly
adjusted.
Brake will not hold.
See authorized dealer.Braking components in
transmission worn.
Check and tighten any
loose connections.
Steering lever linkages
are loose.
Rider steers or handles
poorly.
See Checking Tire
Pressures
Improper tire inflation.
Troubleshooting the Mower Deck
RemedyCauseProblem
See authorized dealer.Lift linkage not properly
attached or damaged.
Mower will not raise.
Set to full throttle.Engine speed too slow.Engine stalls easily with
mower engaged.
Decrease ground speed.Ground speed too fast.
Cut tall grass at maximum
cutting height during first
pass.
Cutting height set too low.
Cut grass with discharge
pointing towards
previously cut area.
Discharge chute jamming
with cut grass.
Tighten to 70 ft. lbs. (94
Nm)
Blade mounting bolts are
loose.
Excessive mower
vibration.
Check and replace as
necessary.
Mower blades, arbors, or
pulleys are bent.
Remove, sharpen, and
balance blades. See
Servicing the Mower
Blades.
Mower blades are not
balanced.
Reinstall the belt
correctly.
Belt installed incorrectly.
Repair or replace.Bent or rough pulleys.Excessive belt wear or
breakage.
Replace with correct belt.Using incorrect belt.
Repair or replace as
needed.
Idler pulley spring broken,
or not properly attached.
Mower drive belt slips, or
fails to drive.
Replace mower drive
belt.
Mower drive belt broken.
Locate and repair
damaged wire.
Electrical wiring damage.Mower does not engage.
Recharge battery and
check alternator. See
Battery Maintenance.
Battery voltage too low.
Troubleshooting Common Cutting
Problems
Problem: Streaking
RemedyCause
Sharpen your blades.Blades are not sharp.
Replace your blades.Blades are worn down too far.
Always mow at full throttle.Engine speed is too slow.
Slow down.Ground speed is too fast.
Clean out the mower.Deck is plugged with grass.
Overlap your cutting rowsNot overlapping cutting rows enough.
When turning your effective cutting
width decreases–overlap more when
turning.
Not overlapping enough when turning.
Problem: Scalping
RemedyCause
Roll or level the lawn.Lawn is uneven or bumpy.
Raise the cutting height.Mower deck cutting height is set too
low.
Slow down.Ground speed is too fast.
Correctly level the deck.Deck is not leveled correctly.
Check and inflate the tires.Tire pressure is low or uneven.
Problem: Stepped Cutting
RemedyCause
Level the deck correctly.Deck is not leveled correctly.
Check and inflate the tires.Tires are not properly inflated.
Replace the blades.Blades are damaged.
Repair or replace the deck.Deck shell is damaged.
Repair or replace the spindle.Mower spindle is bent or loose.
Reinstall the blades correctly.Blades are installed incorrectly.
36 SimplicityMfg.com
Not for
Reproduction