Exmark COMMERCIAL 21 manual Pre-Start, Fuel Shut-Off Valve

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Operation

Figure 5

Clear plastic cover removed for clarity

1.Engine stop switch

2.Press “STOP” to kill engine

3.Press “I” before starting engine

Fuel Shut-Off Valve

The fuel shut off valve is located between the carburetor and the fuel tank. The fuel shut off valve shuts off the flow of fuel when the machine will not be used for a few days, when parking inside a building, and during transport to and from the job.

Figure 6

Kawasaki Unit

1.Fuel valve

On ECXKA21 and ECXKABBC21 units, rotate the valve 1/4 turn clockwise to shut off fuel. Rotate the valve 1/4 turn counterclockwise to turn on fuel.

Figure 7

1.Rotate clockwise to close

2.Rotate counterclockwise to open

On ECXHN21 and ECXHNBBC21 units, the fuel shut off valve is located on the engine as shown in Figure 8. Rotate 1/4 turn clockwise to shut off fuel. Rotate the valve 1/4 turn counterclockwise to turn on fuel.

Figure 8

1.Fuel valve

Pre-Start

Fill fuel tanks. See Fuel Recommendations in the Specifications section for additional gasoline information.

Do Not add oil to gasoline.

Do Not overfill fuel tank. Fill the fuel tank to the bottom of the filler neck. The empty space in the tank allows gasoline to expand. Overfilling may result in fuel leakage or damage to the engine or emission system.

Make sure you understand the controls, their locations, their functions, and their safety requirements.

Refer to the Maintenance section and perform all the necessary inspection and maintenance steps.

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Contents Commercial California Introduction Contents Safe Operating Practices SafetySafety Alert Symbol TrainingSafety Operation Maintenance and Storage Slope OperationSafety and Instructional Decals 109-9317 116-1922 117-2718 116-2737 Model Numbers SpecificationsDimensions SystemsProduct Overview Overall Length and Height at 2 inch Cutting HeightOperation ControlsPre-Start Fuel Shut-Off ValveOpen the Fuel Shut-Off Valve Handle AdjustmentOperating Instructions Starting the EngineStopping the Engine Operating the Self-Propel Drive Self-Propelled Units OnlyUsing the Mulch Plug Test Using the Grass Bag Adjusting the Cutting HeightUsing the Grass Bag Operating Tips Maintenance Recommended Maintenance SchedulesCheck the Mower Blade Check Engine Oil LevelChecking the Blade Brake Clutch Blade Brake Clutch Only Emptying the Fuel Tank and Cleaning the Fuel Filter section Check for Loose Hardware Service Air Filter Kawasaki Units Service Air Filter ECXHNBBC21 and ECXHN21 UnitsChange Engine Oil Check Spark Plugs Change Oil Filter ECXKA21 and ECXKABBC21Check Condition Of Belt Self-Propelled Units Only Emptying the Fuel Tank and Cleaning the Fuel Filter Adjusting the Self-Propel Drive Self-Propelled Units OnlyAdjustment of drive cable nuts Cleaning Under the Belt Cover Self-Propelled Units Only Clean Grass Build-Up Under DeckCleaning the Discharge Tunnel and Plug Screws BBC Shield Waste Disposal Motor Oil DisposalPreparing the Engine StoragePreparing the Fuel System General Storage InformationTroubleshooting Problem Possible Cause Corrective ActionTroubleshooting Exmark Commercial Equipment Page Service Record Page See EXMARK’S Complete Line of Accessories and Options

COMMERCIAL 21 specifications

The Exmark COMMERCIAL 21 is a top-tier commercial lawn mower designed to meet the rigorous demands of professional landscapers and lawn care providers. This robust machine combines innovative technology with ergonomic features to deliver exceptional performance, reliability, and ease of use.

One of the standout features of the COMMERCIAL 21 is its powerful engine. It is equipped with a reliable, high-performance engine that provides plenty of torque and power for tackling tough mowing conditions. This not only ensures efficiency but also enhances productivity, allowing operators to cover large areas in a shorter amount of time.

A significant advantage of the COMMERCIAL 21 is its patented MicroCut™ dual-blade system. This innovative cutting technology enhances the mowing quality by producing finer clippings. This results in an even cut and a higher-quality finish, leaving lawn surfaces looking meticulously manicured. The MicroCut blades are designed to prevent clogging, even in wet conditions, making the mower versatile for various grass types and environments.

Furthermore, the Exmark COMMERCIAL 21 features a durable and robust construction. Its heavy-duty steel deck can withstand the wear and tear of daily use while providing superior performance over time. The 21-inch cutting deck strikes a balance between maneuverability and cutting efficiency, making it ideal for residential areas, tight spots, and larger lawns alike.

When it comes to comfort, the COMMERCIAL 21 has ergonomically designed controls that make operation intuitive and user-friendly. The adjustable handle and padded grips help reduce operator fatigue during long mowing sessions, enabling professionals to work efficiently without discomfort.

For enhanced usability, this mower also has a quick-folding feature, allowing for easy transportation and storage. This attribute saves valuable time on the job site and ensures that the mower is ready to go when needed.

In addition to its robust features, the Exmark COMMERCIAL 21 incorporates user-friendly maintenance protocols. The easy-access engine and blade chambers facilitate routine checks, and the overall design promotes a longer lifespan with minimal maintenance requirements.

Overall, the Exmark COMMERCIAL 21 stands out in the market for its combination of power, performance, and user-centric design, making it an exceptional choice for professionals looking for a reliable and efficient lawn care solution. With its advanced features and technologies, it consistently delivers a superior mowing experience.
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