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Exmark COMMERCIAL 21 Contents, Introduction, Product Overview, Operation, Periodic Maintenance

Models: COMMERCIAL 21

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Contents
Introduction	3
Safety	5
Safety Alert Symbol	5
Safe Operating Practices	5
Safety and Instructional Decals	9
Specifications	11
Model Numbers	11
Systems	11
Dimensions	11
Product Overview	12
Operation	13
Controls	13
Pre-Start	14
Operating Instructions	15
Maintenance	21
Recommended Maintenance Schedule(s)	21
Periodic Maintenance	22
Check Engine Oil Level	22
Checking the Blade Brake Clutch (Blade
Brake Clutch Only)	22
Check the Mower Blade	22
Check for Loose Hardware	24
Check the Blade Brake Clutch Bail
Operation (Blade Brake Clutch Units
Only)	24
Service Air Filter (Kawasaki Units)	25
Service Air Filter (ECXHNBBC21 and
ECXHN21 Units)	25
Change Engine Oil	26
Change Oil Filter (ECXKA21 and
ECXKABBC21)	27
Check Condition Of Belt (Self-Propelled
Units Only)	27
Check Spark Plugs	27
Emptying the Fuel Tank and Cleaning the
Fuel Filter	28
Adjustments	28
Adjusting the Self-Propel Drive
(Self-Propelled Units Only)	28
Adjusting the Blade Brake Cable (Blade
Brake Clutch Units Only)	29
Cleaning	30
Clean Grass Build-Up Under Deck	30
Cleaning the Discharge Tunnel and
Plug	30
Cleaning Under the Belt Cover
(Self-Propelled Units Only)	30
Cleaning the Blade Brake Clutch Shield
(Blade Brake Clutch Units Only)	31

Cleaning Under the Cover Plate (Non-Blade
Brake Clutch Units Only)	31
Waste Disposal	32
Storage	33
Preparing the Fuel System	33
Preparing the Engine	33
General Storage Information	33
Removing the Lawn Mower from
Storage	33
Troubleshooting	34

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Exmark COMMERCIAL 21 manual Contents, Introduction, Product Overview, Operation, Periodic Maintenance

Contents

COMMERCIAL For Serial Nos 312,000,000 & HigherCALIFORNIA Proposition 65 Warning All Rights ReservedIntroduction Model No Serial NoContents Periodic MaintenanceCleaning Under the Cover Plate Non-Blade IntroductionSafety 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 Allow engine parts, especially the muffler, to cool before touchingRemove accumulated debris from muffler and engine area Keep hands, feet, hair, jewelry, or clothing away from rotating partsMaintenance and Storage Do Not mow slopes when grass is wetSlope Operation Mow across slopes, never up and downSafety and Instructional Decals SafetySafety 109-9317 116-1922Specifications DimensionsSpecifications Safety Interlock SystemProduct Overview Product OverviewOverall Length and Height at 2 1/2 inch Cutting Height Engine Stop Switch OperationControls OperationFuel Shut-Off Valve Pre-StartOperation Handle Adjustment Operating InstructionsOpen the Fuel Shut-Off Valve Starting the EngineStopping the Engine Operating the Self-Propel Drive Self-Propelled Units OnlyOperating the Blade Control Bail Units Without Blade Brake Clutch Operating the Blade Control Lever Blade Brake Clutch Units OnlyChecking the Blade Brake Clutch Blade Brake Clutch Units Only Using the Mulch PlugOperation Test Using the Grass Bag Adjusting the Cutting HeightAuthorized Service Dealer Rear Wheel AdjustmentOperation Using the Grass BagCut the grass until the bag is full. Note Do Not overfill the bag Operation Operating TipsDANGER Recommended Maintenance Schedules MaintenanceMaintenance Periodic Maintenance Service Interval Before each use or dailyCheck Engine Oil Level Checking the Blade Brake Clutch Blade Brake Clutch OnlyEmptying the Fuel Tank and Cleaning the Fuel Filter section Inspect the blade periodically for wear or damageReplace a worn or damaged blade MaintenanceCheck for Loose Hardware Check the Blade Brake Clutch Bail Operation BladeBrake Clutch Units Only MaintenanceService Air Filter Kawasaki Units Service Air Filter ECXHNBBC21 and ECXHN21 UnitsMaintenance Every 250 hours- Replace the air filter elementsService Interval After the first 5 hours Avoid contacting the hot engine oil when you drain itChange Engine Oil Every 50 hours May need more often under severe conditionsService Interval Every 100 hours Service Interval Every 40 hoursChange Oil Filter ECXKA21 and ECXKABBC21 Check Condition Of Belt Self-Propelled Units OnlyAdjustments Emptying the Fuel Tank and Cleaning the Fuel FilterAdjusting the Self-Propel Drive Self-Propelled Units Only Do Not operate the unit when cover is not in placeAdjusting the Blade Brake Cable Blade Brake Clutch Units Only Maintenance1. Adjustment of drive cable nuts 1. SpringCleaning Clean Grass Build-Up Under DeckCleaning the Discharge Tunnel and Plug Cleaning Under the Belt Cover Self-Propelled Units OnlyCleaning the Blade Brake Clutch Shield Blade Brake Clutch Units Only Cleaning Under the Cover Plate Non-Blade Brake Clutch Units OnlyMaintenance Service Interval Every 50 hoursMotor Oil Disposal Waste DisposalMaintenance Storage Preparing the Fuel SystemPreparing the Engine General Storage InformationTroubleshooting TroubleshootingTroubleshooting ProblemPossible Cause Corrective ActionExmark Commercial Equipment 1 Year Limited WarrantyInstructions for Obtaining Warranty Service Owner’s ResponsibilitiesPage Service Record Service Done ByDate Description of Work DonePage 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