Exmark 820, 977 manual Check Safety Interlock System, Check for Loose Hardware

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Maintenance

Figure 11

1.Do Not use wrench here for blade installation. Maintain 140–145 ft-lb (190–197 N-m)

2.Use 1 inch wrench here to hold spindle for blade replacement.

3.Cone towards bolt head

4.Torque to 115–120 ft-lb (156–163 N-m)

WARNING

Incorrect installation of the blade or components used to retain the blade can be dangerous. Failure to use all original components and assembled as shown could allow a blade or blade component to be thrown out from under the deck resulting in serious personal injury or death.

Always install the original Exmark blades, spring disc washers, and blade bolts as shown.

Check Safety Interlock System

Service Interval: Before each use or daily

Note: To prevent engine cut-outs on rough terrain the seat kill switch has a 1/2 second delay.

1.Check starting circuit. Starter should crank with, parking brake engaged, PTO disengaged and motion control levers moved out in the neutral lock position. The operator does not need to be in the seat to start the engine.

Try to start with operator in seat, parking brake disengaged, PTO disengaged and motion control

levers in the neutral lock position - starter must not crank.

Try to start with operator in seat, parking brake engaged, PTO engaged and motion control levers in the neutral lock position - starter must not crank.

Try to start with operator in seat, parking brake engaged, PTO disengaged, and the left motion control lever in, starter must not crank, repeat again with the right lever in, then with both levers in - starter must not crank.

2.Check the kill circuits. Run engine at one-third throttle, disengage parking brake and raise off of seat (but do not get off of machine) engine must initiate shutdown after approximately 1/2 second has elapsed (seat has time delay kill switch to prevent cut-outs on rough terrain).

Run engine at one-third throttle, engage PTO and raise off of seat (but do not get off of machine) engine must initiate shutdown after 1/2 second has elapsed.

Run engine at one-third throttle, with brake disengaged, move levers in and raise off seat (but do not get off of machine) engine must initiate shutdown after 1/2 second has elapsed.

Again, run engine at one-third throttle, brake engaged, and move left motion control lever in

-engine must initiate shutdown.

Repeat again moving the right lever in, then moving both levers in - engine must initiate shutdown whether operator is on seat or not.

Note: If machine does not pass any of these tests, Do Not operate. Contact your authorized EXMARK

SERVICE DEALER.

Important: It is essential that operator safety mechanisms be connected and in proper operating condition prior to use for mowing.

Check for Loose Hardware

Service Interval: Before each use or daily

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.

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

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Contents Phazer California Introduction Contents Safety Alert Symbol SafetySafe Operating Practices TrainingSafety Slope Operation OperationMaintenance and Storage Safety Safety and Instructional Decals PTO 116-1400 Model Numbers SpecificationsSystems Dimensions Torque Requirements Product OverviewControls OperationLow Voltage Indicator PTO Engagement SwitchPre-Start Fuel Shut-Off ValveOperating Instructions Driving Forward Driving the MachineTransporting Adjusting the Cutting HeightTransporting a Unit Loading a Unit Recommended Maintenance Schedules MaintenanceRecommended Jump Starting Procedure Check Battery ChargeCheck Engine Oil Level Check Mower Blades Check for Loose Hardware Check Safety Interlock SystemChange Engine Oil Service Air CleanerCheck Hydraulic Oil Level Check Tire PressuresLubricate Caster Wheel Hubs Lubricate Grease FittingsChange Fuel Filter Check Spark PlugsChange Hydraulic System Filter Thread Locking Adhesives Fuel Tank Mounting Hardware SpecificationsMobil HTS Grease Or Food-Grade Anti-seize Dielectric GreaseMotion Control Linkage Adjustment Electric Clutch AdjustmentDeck Leveling Pump Drive Belt TensionClean Engine Air Cooling System Adjust Throttle Lever TensionRemove Engine Shrouds and Clean Cooling Fins Clean Grass Build-Up Under DeckWaste Disposal Battery DisposalMotor Oil Disposal Problem Possible Cause Corrective Action TroubleshootingTroubleshooting Electrical Diagram SchematicsElectrical Logic Schematic Exmark Commercial Turf Equipment Page This page may be copied for personal use See EXMARK’S Complete Line of Accessories and Options

977, 820 specifications

The Exmark 820,977 is a powerful and versatile commercial-grade mower that stands out in the landscaping and turf management industry. Renowned for its durability and efficiency, this model is designed to meet the demands of professionals and serious enthusiasts alike.

One of the main features of the Exmark 820,977 is its efficient engine. Powered by a robust V-Twin engine, this mower delivers impressive horsepower, enabling it to cut through thick grass and tough terrain with ease. The engine is designed for optimal fuel efficiency, reducing operational costs while maximizing performance.

The Exmark 820,977 utilizes a patented UltraCut deck technology that ensures a clean and precise cut. This innovative mowing deck design contributes to an exceptional quality of cut at various mowing heights. The fully welded construction enhances durability, allowing for prolonged use in demanding conditions.

Another significant characteristic of the Exmark 820,977 is its ergonomic design. The control system is user-friendly, providing operators with intuitive controls that minimize fatigue during extended use. The adjustable operator seat contributes to comfort, allowing for optimal positioning regardless of the user's stature.

For enhanced maneuverability, the Exmark 820,977 features a low center of gravity and responsive handling, making it easier to navigate around obstacles and tight spaces. The mower's compact design also facilitates storage and transport without taking up too much space.

Technology plays a crucial role in the Exmark 820,977's performance. The model incorporates a range of advanced features, such as an advanced ignition system, which ensures reliable starts and smooth operation. Additionally, the mower includes a maintenance display that alerts users when service is needed, promoting proactive care and reducing downtime.

The Exmark 820,977 is also designed with adaptability in mind. Optional attachments and accessories allow users to customize their mower for a variety of tasks, from mulching and bagging to aerating and dethatching. This versatility makes it an ideal choice for commercial landscapers who require equipment that can handle different jobs effectively.

In conclusion, the Exmark 820,977 epitomizes a blend of powerful performance, advanced technology, and user-friendly features. Its durability and adaptability make it a top choice for professionals seeking a reliable mower capable of delivering superior results in challenging environments.