Storage

Storage

Preparing the Fuel System

To prepare the lawn mower for off season storage, perform the recommended maintenance procedures.

Store the lawn mower in a cool, clean, dry place. Cover the lawn mower to keep it clean and protected.

WARNING

Gasoline can vaporize if you store it over long periods of time. Gasoline vapors can explode if they come into contact with an open flame.

•Do Not store gasoline over long periods of time.

•Do Not store the lawn mower with gasoline in the fuel tank or the carburetor in an enclosure with an open flame. (For example, a furnace or a water heater pilot light.)

•Allow the engine to cool before storing it in any enclosure.

Empty the fuel tank when mowing the last time before storing the lawn mower.

1.Run the lawn mower until the engine stops from running out of fuel.

2.Prime the engine and start it again.

3.Allow the engine to run until it stops. When you can no longer start the engine it is sufficiently dry.

Preparing the Engine

1.While the engine is still warm, change the oil from the crankcase. Refer to Change Engine Oil section in Maintenance.

2.Remove the spark plug.

3.Using an oil can, add about one tablespoon of oil to the crankcase through the spark plug hole.

4.Slowly rotate the engine several times, using the starter rope, to distribute the oil.

5.Install the spark plug but Do Not connect the wire to the spark plug.

General Storage Information

1.Clean the lawn mower housing. Refer to

Cleaning the Underside of the Lawn Mower Housing section in Cleaning.

2.Clean any dirt and chaff from the cylinder, cylinder head fins, and blower housing.

3.Remove grass clippings, dirt, and grime from the external parts of the engine, the shrouding, and the top of the lawn mower housing.

4.Clean the BBC shield. Refer to Cleaning the Blade Brake Clutch Shield section in Cleaning.

5.Check the condition of the blade. Refer to Maintaining the Blade section in the Maintenance.

6.Service the air filter. Refer to Servicing the Air Filter in Maintenance.

7.Tighten all nuts, bolts, and screws.

8.Touch up all rusted or chipped paint surfaces with paint available from an Authorized Service Dealer.

Removing the Lawn Mower from Storage

1.Check and tighten all fasteners.

2.Remove the spark plug and spin the engine rapidly by pulling the starter rope to blow excess oil from the cylinder.

3.Clean the spark plug or replace it if it is cracked, broken, or if the electrodes are worn.

4.Install the spark plug and torque it to 17 ft-lb (23 N-m).

5.Perform any needed maintenance procedures.

6.Fill the fuel in the fuel tank with fresh gasoline.

7.Check the engine oil level.

8.Connect the wire to the spark plug.

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Exmark COMMERCIAL 21 manual Preparing the Fuel System, Preparing the Engine, General Storage Information
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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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