Maintenance

5.Place a suitable drain pan under the dipstick/oil drain.

6.Clean around the dipstick.

7.Remove the dipstick by rotating the cap counterclockwise and pulling it out.

8.Raise the left side of the lawn mower to drain the oil from the dipstick fill tube into the drain pan.

9.After draining the oil, return the lawn mower to the operating position.

10.Fill the crankcase with fresh oil to the upper limit mark on the dipstick. Use oil recommended in the Check Engine Oil Level section. Do Not overfill

11.Insert the dipstick into the filler neck and rotate the cap clockwise until it is tight.

12.Wipe up any spilled oil.

13.Connect the wire to the spark plug.

14.Recycle the used oil according to local codes.

Change Oil Filter (ECXKA21 and ECXKABBC21)

Service Interval: Every 100 hours

1.Run the engine to warm the oil.

2.Stop the engine and wait for all moving parts to stop.

3.Disconnect the wire from the spark plug.

4.Drain the engine oil.

5.Place a rag under the oil filter to catch any oil that may leak out as you remove the filter.

6.Remove the oil filter.

7.Use your finger to coat the gasket on the new filter with clean Exmark 4–Cycle Premium Engine oil (see Figure 28).

Figure 28

1.Gasket

8.Install the new filter and hand tighten it 2/3 turn only.

9.Fill the crankcase as stated in Check Engine Oil Level section. Exmark 4–Cycle Premium Engine oil is recommended. Refer to the Engine Owner's Manual for an acceptable alternative.

10.Connect the wire to the spark plug.

11.Run the engine for about 3 minutes.

12.Stop the engine, wait for all moving parts to stop, and check for oil leakage around the filter.

13.Add oil to compensate for the oil in the oil filter.

14.Recycle the used oil filter according to local codes.

Check Condition Of Belt (Self-Propelled Units Only)

Service Interval: Every 40 hours

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

2.Remove the belt cover to the lawn mower housing.

3.Check the belt for cracks, frayed edges, burn marks or any other damage.

4.Replace the damaged belt.

Check Spark Plugs

Service Interval: Every 100 hours

1.Stop the engine and wait for all moving parts to stop.

2.Disconnect the wire from the spark plug (Figure 9 and Figure 10).

3.Clean around the spark plug.

4.Remove the spark plug from the cylinder head.

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Exmark COMMERCIAL 21 manual Change Oil Filter ECXKA21 and ECXKABBC21, Check Condition Of Belt Self-Propelled Units Only
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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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