Exmark 850 manual Check for Loose Hardware, Check the Blade Brake Clutch Bail Operation Blade

Page 25
Check for Loose Hardware

Maintenance

Figure 23

1. Inner cutting edge radius 2. Cutting angle

C.Check the balance of the blade by placing the center hole of the blade over a nail or screwdriver shank clamped horizontally in a vise (Figure 24). If either end of the blade rotates downward, file that end (not the cutting edge). The blade is properly balanced when neither end drops.

Figure 24

1. Blade

3. Screwdriver

2.Vise

D.For Installation: Make sure to grasp the end of the blade using a rag or a thickly padded glove.

For Blade Brake Clutch Units: Install a sharp, balanced Exmark blade, blade support, and the blade nuts. The sail of the blade must point toward the top of the lawn mower housing for proper installation. Torque the blade nuts to 23-27 ft-lb (31-37 N m).

For Units without a Blade Brake Clutch: Install a sharp, balanced Exmark blade, blade support, and blade bolt. The sail of the blade must point toward the top of the lawn mower housing for proper installation. Torque the blade bolt to 35-45 ft-lb (47-61 N m).

Figure 25

1.Blade Brake Clutch Units

2.Units without a Blade Brake Clutch

6.Return the lawn mower to its upright position.

7.Connect the wire to the spark plug.

Check for Loose Hardware

Service Interval: Before each use or daily

1.Stop engine, wait for all moving parts to stop.

2.Visually inspect machine for any loose hardware or any other possible problem. Tighten hardware or correct the problem before operating.

Check the Blade Brake

Clutch Bail Operation (Blade

Brake Clutch Units Only)

Service Interval: Before each use or daily

Check the Blade Brake Clutch (BBC) bail operation for any operation problems or deteriorating components, such as the spring. Replace components or correct any problems before operating. Refer to Operating the Blade Control Lever in Operation.

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Contents For Serial Nos 850,000 & Higher COMMERCIALPart No. 4500-674Rev. A CALIFORNIA Proposition 65 Warning Model No Serial No IntroductionContents Safety Alert Symbol SafetySafety Safe Operating PracticesSafety DANGERDANGER Safety OperationSlope Operation Maintenance and StorageSafety Do Not mow slopes when grass is wetSafety Safety and Instructional DecalsEC21KABBCX EC21KABBC,EC21KAY, EC21KA, EC21KABBCCA109-8194 SafetyEC21KABBCY, EC21KABBCCA 116-1922116-2737 SafetyDimensions SpecificationsSpecifications Curb WeightOperation Product OverviewControls OperationChoke Control EC21HNBBC, EC21HNBBCX Engine Stop SwitchFuel Shut-OffValve Blade Control Lock Lever BladePre-Start Handle AdjustmentOperating Instructions Open the Fuel Shut-OffValveOperation Stopping the EngineOperation Using the Mulch PlugOperation Authorized Service DealerAdjusting the Cutting Height Test Using the Grass BagDANGER OperationDANGER Using the Grass BagOperation Operation Operating TipsRecommended Maintenance Schedules MaintenanceMaintenance Check Engine Oil Level Periodic MaintenanceChecking the Blade Brake Clutch Blade Brake Clutch OnlyMaintenance Check the Mower BladeDANGER Check the Blade Brake Clutch Bail Operation Blade Check for Loose HardwareBrake Clutch Units Only MaintenanceService Air Filter EC21ASHN Units Service Air Filter Kawasaki UnitsMaintenance Maintenance Service Air Filter EC21HNBBC and EC21HNBBCX UnitsMaintenance Change Engine OilService Interval After the first 5 hours Check Spark Plugs Check Condition Of Belt Self-PropelledUnits OnlyMaintenance Service Interval Every 100 hoursAdjusting the Self-Propel Drive AdjustmentsSelf-PropelledUnits Only MaintenanceBlade Brake Clutch Units Only Adjusting the Blade Brake CableMaintenance Clean Grass Build-UpUnder Deck CleaningCleaning the Discharge Tunnel and Plug MaintenanceCleaning the Blade Brake Clutch Shield Cleaning Under the Belt Cover Self-PropelledUnitsCleaning Under the Cover Plate Non-BladeBrake OnlyMotor Oil Disposal Waste DisposalMaintenance Preparing the Fuel System StoragePreparing the Engine General Storage InformationTroubleshooting TroubleshootingProblem TroubleshootingPossible Cause Corrective Action1 Year Limited Warranty Exmark Commercial Turf EquipmentInstructions for Obtaining Warranty Service Owner’s ResponsibilitiesService Done By Service RecordDate Description of Work DoneOUT-FRONTRIDING ACCESSORIES AND OPTIONS MID-MOUNTRIDING ACCESSORIES AND OPTIONSWALK-BEHINDACCESSORIES AND OPTIONS
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000 & higher, 850 specifications

The Exmark 850 is a top-of-the-line commercial mower, known for its durability, efficiency, and advanced features, making it a favorite among landscaping professionals. With a powerful engine and innovative technology, the Exmark 850 is designed to tackle tough mowing tasks while ensuring a high-quality cut.

One of the standout characteristics of the Exmark 850 is its robust engine performance. Powered by a reliable Kohler or Kawasaki engine, it delivers exceptional horsepower, enabling it to handle various terrains and grass types with ease. The engine is designed for fuel efficiency, allowing operators to work longer hours without frequent refueling, ultimately boosting productivity on the job.

The cutting deck of the Exmark 850 is engineered with precision, utilizing Exmark's proprietary UltraCut technology. This technology ensures that grass is cut evenly and efficiently, resulting in a clean, manicured appearance. The deck height is easily adjustable, allowing users to quickly change settings to accommodate different lawn conditions and preferences.

Another key feature is the innovative suspension system that enhances ride quality. The Exmark 850 is equipped with a heavy-duty front axle and high-performance suspension that absorbs bumps and uneven ground, allowing for a smoother mowing experience. This is especially beneficial for operators who spend long hours on the mower, reducing fatigue and improving comfort.

Ergonomics play a crucial role in the design of the Exmark 850. The operator station is thoughtfully crafted with optimal controls and comfortable seating, allowing for easy maneuverability and long-term use. The ergonomic handles and intuitive control layout make it easy for operators to navigate tricky landscapes, enhancing overall efficiency.

In terms of durability, the Exmark 850 is built to withstand the rigors of commercial use. The high-quality materials and construction ensure that this mower can handle challenging conditions, extending its lifespan and reducing maintenance needs. Additionally, Exmark offers an extensive warranty program, providing peace of mind for operators.

Safety features are also prioritized in the Exmark 850, with guards and shields designed to protect the operator while mowers are in use. These features also include emergency shut-off systems and blade brake systems, ensuring compliance with safety standards.

Overall, the Exmark 850 stands out as a high-performing, reliable, and efficient mower suitable for a variety of commercial landscaping tasks. With its powerful engine, advanced cutting technology, ergonomic design, and emphasis on durability and safety, it continues to be a top choice for professionals seeking high-quality lawn care equipment.
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