Exmark COMMERCIAL 21 manual Stopping the Engine

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Operation

5.For units without a Blade Brake Clutch: Hold the blade control bail to the handle.

6.Pull the starter handle lightly until you feel resistance, then pull it sharply. Allow the rope to return slowly.

7.For ECXHNBBC21 Units: Gradually push in the choke control as the engine warms up.

8.For ECXHN21 Units: When the engine starts, move the choke/throttle control back to the fast position.

Stopping the Engine

1.Bring the unit to a full stop.

•For units without a Blade Brake Clutch: Release the blade control bail. Both the engine and the blade should stop within three seconds.

•For units with a Blade Brake Clutch: Press the switch to “STOP” to kill the engine (see Figure 5).

Note: If the blade does not stop within 3 seconds after releasing the blade control bail, contact an Authorized Service Dealer.

2.Close the fuel shut-off valve, if equipped, when the machine will not be in use for a few days, when transporting, or when the unit is parked inside a building.

Operating the Self-Propel Drive (Self-Propelled Units Only)

The lawn mower is variable speed, the more you squeeze the drive bail the faster the machine travels.

1.Start the engine.

2.Squeeze the drive bail against the handle (see Figure 4).

Note: You can vary the ground speed by increasing or decreasing the distance between the ground speed control bail and the handle. Lower the control bail to decrease the ground speed when you are making a turn or if the lawn mower is moving too fast for you. If you lower the control bail too far the lawn mower stops self-propelling. Squeeze the ground speed control bail closer to the handle to increase the ground speed. When you hold the ground speed control bail tight against the handle, the lawn mower

self-propels at the maximum ground speed. Release the drive bail to stop moving when you use the lawn mower for trimming or whenever you leave the lawn mower.

3.To disengage the self-propel drive, release the drive bail.

Note: The mower comes with freewheeling clutches which make it easier to pull the mower rearward. To disengage the clutches, you may need to push the mower forward one inch (2.5 cm) or more after you release the self-propel drive bail.

Operating the Blade Control Bail (Units Without Blade Brake Clutch)

1.Squeeze the blade control bail against the handle.

2.Start the engine.

3.When the blade control bail is squeezed against the handle, the blade should engage.

4.Release the blade control bail. Both the engine and the blade should stop.

Operating the Blade Control Lever (Blade Brake Clutch Units Only)

1.Start the engine.

2.Push and hold the blade control lock lever forward to release the blade control bail (Figure 12).

Figure 12

1.

Blade control lock lever

4.

Push forward

2.

Locked position

5.

Unlocked position

3.

Blade control bail

6.

Squeeze against handle

3.Squeeze the blade control bail against the handle and release the blade control lock lever; the blade should engage.

4.Release the blade control bail to disengage the blade. The blade control lock lever will reset to lock the blade control bail.

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Contents Commercial California Introduction Contents Safety Safety Alert SymbolSafe Operating Practices TrainingSafety Operation Maintenance and Storage Slope OperationSafety and Instructional Decals 109-9317 116-1922 117-2718 116-2737 Specifications DimensionsModel Numbers SystemsProduct Overview Overall Length and Height at 2 inch Cutting HeightOperation ControlsPre-Start Fuel Shut-Off ValveHandle Adjustment Operating InstructionsOpen the Fuel Shut-Off Valve 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 SchedulesChecking the Blade Brake Clutch Blade Brake Clutch Only Check Engine Oil LevelCheck the Mower Blade 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 Condition Of Belt Self-Propelled Units Only Change Oil Filter ECXKA21 and ECXKABBC21Check Spark Plugs Emptying the Fuel Tank and Cleaning the Fuel Filter Adjusting the Self-Propel Drive Self-Propelled Units OnlyAdjustment of drive cable nuts Cleaning the Discharge Tunnel and Plug Clean Grass Build-Up Under DeckCleaning Under the Belt Cover Self-Propelled Units Only Screws BBC Shield Waste Disposal Motor Oil DisposalStorage Preparing the Fuel SystemPreparing the Engine 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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