Exmark 4500-352 manual Troubleshooting, Problem, Possible Cause, Corrective Action

Page 36
Cutting blade(s) is/are bent or unbalanced.

Troubleshooting

Problem

 

Possible Cause

 

Corrective Action

 

 

 

 

 

Mower pulls left or right (with levers fully

1.

Idler arm pulleys and drive sheaves are

1.

Remove mud and/or grass buildup.

forward).

 

dirty.

 

 

 

2.

Wheel drive belt pulley scrapers

2.

Correct adjustment.

 

 

adjustment is not correct

 

 

 

3.

Idler pivot arms cannot pivot freely

3.

Lubricate ilder pivots.

 

4.

Drive belts are worn.

4.

Replace drive belts as a set. (Do Not mix

 

 

 

 

a new belt with a worn drive belt.)

 

5.

Drive linkage adjustment is not correct.

5.

Correct adjustment.

 

6.

Tire pressure in drive tires not correct.

6.

Adjust tire pressure in the drive tires.

 

 

 

 

 

Machine does not drive.

1.

Transmission drive belt is worn, loose or

1.

Change the belt.

 

 

broken.

 

 

 

2.

Transmission drive belt is off a pulley.

2.

Change the belt.

 

 

 

 

 

Uneven cutting height.

1.

Blade(s) not sharp.

1.

Sharpen the blade(s).

 

2.

Cutting blade(s) is/are bent.

2.

Install new cutting blade(s).

 

3.

Mower deck is not level.

3.

Level mower deck from side-to-side and

 

 

 

 

front-to-rear.

 

4.

Underside of mower is dirty.

4.

Clean the underside of the mower.

 

5.

Tire pressure in drive tires not correct.

5.

Adjust tire pressure in the drive tires.

 

6.

Blade spindle bent.

6.

Contact an Authorized Service Dealer.

 

7.

Tips of adjacent blades are at an uneven

7.

Replace blades, spindles and (or) check

 

 

cutting height. Blades tips should be even

 

for damage to mower deck.

 

 

within 3/16 inch which is approximately

 

 

 

 

one blade thickness.

 

 

 

8.

Caster mounting brackets are loose.

8.

Tighten hardware.

 

 

 

 

 

Abnormal vibration.

1.

Cutting blade(s) is/are bent or unbalanced.

1.

Install new cutting blade(s).

 

2.

Blade mounting bolt is loose.

2.

Tighten the blade mounting bolt.

 

3.

Engine mounting bolts are loose.

3.

Tighten the engine mounting bolts.

 

4.

Loose engine pulley, idler pulley, or blade

4.

Tighten the appropriate pulley.

 

 

pulley.

 

 

 

5.

Engine pulley is damaged.

5.

Contact an Authorized Service Dealer.

 

6.

Blade spindle is bent.

6.

Contact an Authorized Service Dealer.

 

7.

Belt is damaged.

7.

Install new belt.

 

 

 

 

 

Blades do not rotate.

1.

Deck belt is worn, loose or broken.

1.

Install new deck belt.

 

2.

Deck belt is off pulley.

2.

Install deck pulley and check the idler

 

 

 

 

pulley, idler arm and spring for correct

 

 

 

 

position and function.

 

 

 

 

 

Blades do not stop when disengaged.

1.

Blade brake is not adjusted properly.

1.

Adjust blade brake.

 

2.

Belt guide is not properly set

2.

Adjust belt guide to proper position.

 

3.

PTO engagement is not properly set.

3.

Check the PTO engagement position.

 

 

 

 

 

36

Image 36
Contents METRO For Serial Nos 790,000 & HigherCALIFORNIA Proposition 65 Warning Introduction Model No Serial NoContents Safety Safety Alert SymbolSafety ALERT! YOUR SAFETY IS INVOLVEDDANGER Avoid prolonged breathing of vaporsKeep face away from nozzle and gas tank/container opening Keep away from eyes and skin Never siphon by mouthOperation Slope OperationAllow engine parts, especially the muffler, to cool before touching Remove accumulated debris from muffler and engine areaMaintenance and Storage Do Not mow slopes when grass is wetMow across slopes, never up and down Do Not mow near drop-offs or near waterSafety and Instructional Decals ECS Units Only 48 inch Units Only Pistol Grip Units OnlySpecifications SpecificationsSafety Interlock System Model NumbersDimensions Curb WeightTorque Requirements Cutting DeckProduct Overview OperationControls Operation“Off-Run” Switch Drive LeversNeutral Lock/Park Brake Latches Choke ControlPre-Start Operating InstructionsOpen the Fuel Shut-Off Valve Starting the EngineDriving the Machine Drive Lever/Neutral Lock/Park Brake Latch OperationFor Pistol Grip Handles For ECS HandlesIf necessary, use assistance when loading TransportingChanging Gears Transporting a UnitMaintenance Recommended Maintenance SchedulesMaintenance Periodic Maintenance Service Interval Before each use or dailyService Interval As required Check Engine Oil LevelCheck Safety Interlock System Service Pre-Cleaner Element and Air CleanerSERVICE DEALER Service Interval After the first 5 hoursService Interval Every 40 hours Note See chart for service intervalsCheck Tire Pressures Check Condition Of BeltsService Interval Every 160 hours Check Spark PlugsChange Fuel Filter Yearly-Replace gearbox greaseAdjustments Adjusting the Cutting HeightThread Locking Adhesives Mobil HTS Grease Or Food-Grade Anti-seizeCutting AxleNumber Of Spacers HeightAdjusting the Axle Position Adjusting the Number of Spacers below Caster Support Hub Adjusting the Cutting Height with Blade SpacersTransmission Belt Adjustment 3. Place the drive levers in the “park brake” positionWheel Drive Belt Pulley Scrapers Engine to Mower Deck Belt48 inch Deck Shown for Reference Only Blade Brake Adjustment Belt Guide AdjustmentBrake and Wheel Drive Linkage Adjustment Shifter Lever Adjustment Right Side of Unit ShownShifter Detent Adjustment PTO Safety Switch AdjustmentHandle Height Adjustment Wheel Drive Spring Tension Adjustment Upper HandleUpper Hole More traction applied asCleaning Clean Engine and Exhaust System AreaClean Debris From Machine Remove Engine Shrouds and Clean Cooling FinsTroubleshooting TroubleshootingCutting blades is/are bent or unbalanced Schematics SchematicsExmark Commercial Turf Equipment 2 Year Limited WarrantyInstructions for Obtaining Warranty Service Owner’s ResponsibilitiesPage SEE EXMARK’S COMPLETE LINE OF ACCESSORIES AND OPTIONS MID-MOUNT RIDING ACCESSORIES AND OPTIONSOUT-FRONT RIDING ACCESSORIES AND OPTIONS WALK-BEHIND ACCESSORIES AND OPTIONS