Simplicity 7800071, 7800072 Troubleshooting, Adjustments, & Service, Troubleshooting the Mower

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Troubleshooting, Adjustments, & Service

Rider Troubleshooting Continued.

PROBLEM

CAUSE

REMEDY

Engine runs, but rider will

1.

Transmission(s) disengaged.

1. Unlock roll release rod(s).

not drive.

2.

Belt is broken.

2. See Drive Belt Replacement.

 

3.

Drive belt slips.

3. See problem and cause below.

 

4.

Brake is not fully released.

4. See Brake Adfjustment.

 

5.

Internal transmission problem

5. See authorized service dealer

 

 

 

 

Rider drive belt slips.

1.

Pulleys or belt greasy or oily.

1. Clean as required.

 

2.

Belt stretched or worn.

2. Replace belt.

 

 

 

 

Brake will not hold.

1.

Brake is incorrectly adjusted.

1. See Brake Adjustment.

 

2.

Internal transmission problem.

2. See authorized service dealer.

 

 

 

 

Rider steers or handles poorly.

1.

Steering linkage is loose.

1. Check and tighten any loose connections.

 

2.

Improper tire inflation.

2. See Regular Maintenance Section.

 

 

 

 

TROUBLESHOOTING THE MOWER

PROBLEM

CAUSE

REMEDY

Mower will not raise.

1.

Mower deck not properly installed.

1. See Mower Removal and Installation.

 

2.

Deck lift component(s) damaged.

2. See authorized service dealer for repair.

 

 

 

 

Mower cut is uneven.

1.

Mower not leveled properly.

1. See Mower Adjustment.

 

2.

Rider tires not inflated

2. See Regular Maintenance Section.

 

 

equally or properly.

 

Mower cut is rough looking.

1.

Engine speed too slow.

1. Set engine speed control to full.

2.

Ground speed too fast.

2. Decrease Ground Speed.

3.

Blades are dull.

3. Sharpen or replace blades.

 

 

See Mower Blade Service.

4.

Mower drive belt slipping

4. Clean or replace belt as necessary.

 

because it is oily or worn.

 

5.

Blades not properly fastened

5. See Servicing the Mower Blades.

 

to arbors.

 

Engine stalls easily with

1.

Engine speed too slow.

1. Set engine speed control to full.

mower engaged.

2.

Ground speed too fast.

2. Decrease Ground Speed.

 

3.

Cutting height set too low.

3. Cut tall grass at maximum cutting

 

 

 

height during first pass.

 

4.

Discharge chute jamming

4. Cut grass with discharge pointing toward

 

 

with cut grass.

previously cut area.

 

 

 

 

Excessive mower vibration.

1.

Blade mounting hardware is loose.

1. Tighten to 80-90 ft.lbs.

 

2.

Mower blades, arbors,

2. Check and replace as necessary.

 

 

or pulleys are bent.

 

 

3.

Mower blades are out

3. Remove, sharpen, and balance blades.

 

 

of balance.

See Maintenance Section.

 

4.

Belt installed incorrectly.

4. Reinstall Correctly.

 

 

 

 

Excessive belt wear or breakage.

1.

Bent or rough pulleys.

1. Repair or replace.

 

2.

Using incorrect belt.

2. Replace with correct belt.

 

 

 

 

Mower drive belt slips

1.

Idler pulley spring broken or not

1. Repair or replace as needed.

or fails to drive.

 

properly attached.

 

 

2.

Mower drive belt broken.

2. Replace drive belt.

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Contents Press Operator’s ManualsPaper Size BinderyPage OPERATOR’S Manual Page Table of Contents Safety Rules & Information Safety Rules and Information From PreviousTowing Identification Numbers CE Identification TAG MarkingsSafety Decals Safety DecalsSafety Interlock System Operational Safety ChecksChoke Control FunctionsMotion Control Levers Features & Controls General Operating Safety Checks Before StartingStopping the Rider & Engine OperationStarting the Engine Pushing the Rider by HandForward Travel Practice Zero Turn Driving PracticeSmooth Travel Reverse Travel PracticePractice Turning Around a Corner Executing an End-Of-Row Zero TurnRemoval Mower Removal InstallationAttaching a Trailer Installation Regular Maintenance Before Every Spring Each Hours 100 250 Fall UseRegular Maintenance LubricationService Interval Every 10 Hours or As Required Servicing the Mower BladesChecking / Adding Fuel Engine MaintenanceCheck Tire Pressures Fuel FilterStorage Battery MaintenanceCleaning the Battery and Cables Troubleshooting, Adjustments, & Service Troubleshooting the RiderTroubleshooting, Adjustments, & Service Troubleshooting the MowerSpeed Balancing Adjustment Seat AdjustmentsMotion Control Lever Adjustment Seat Position AdjustmentRoller BAR Adjustment Motion Control Lever Friction AdjustmentCutting Height Adjustment Neutral Adjustments Brake Adjustment Parking Brake AdjustmentFront Suspension Adjustment Select Models PTO Clutch Adjustment Blade Brake CheckMower Deck Leveling Orient Blades Side-to-SideIf Equipped Deck Timing ROD AdjustmentRoller BAR Leveling Transmission Drive Belt Replacement Battery ChargingMower Belt Replacement PRY Belts Over PulleysFuse Replacement Engine CE Compliance Specifications TransmissionsDimensions ChassisTechnical Manuals Replacement PartsMaintenance Items