Potential Hazard

DANGER

♦The lawn mower can throw grass clippings and other objects though an open discharge tunnel.

WHAT CAN HAPPEN

♦Objects thrown with enough force could cause serious personal injury or death to an operator or bystander.

HOW TO AVOID THE HAZARD

♦Never open the door on the discharge tunnel when the engine is running.

4.3.10Operating Tips

•Review the Safety Instructions (Section 1) and read this manual carefully before operating the lawn mower.

•Set the engine speed to the fastest position for the best cutting results.

•Maintain a sharp blade throughout the cutting season. Periodically file down nicks on the blade. Replace the blade when necessary with an original Exmark replacement blade.

•Clean the air filter frequently. Mulching stirs up more clippings and dust which clogs the air filter and reduces engine performance.

Cutting Grass

•Grass grows at different rates at different times of the year. In the summer heat, it is best to cut grass at the 2-1/4 inch (57 mm), 2-3/4 inch (70 mm), or 3-1/4 inch (83 mm) cutting height settings. Cut only about a third of the grass blade at a time. Do not cut below the 2-1/4 inch (57 mm) setting unless the grass is sparse or it is late fall when grass growth begins to slow down.

•When cutting grass over 6 inches (15 cm) tall, first mow at the highest cutting height setting and walk slower; then mow again at a lower setting for the best lawn appearance. If the grass is too long and the leaves clump on top of the lawn, the lawn mower may plug and cause the engine to stall.

•Alternate the mowing direction. This helps disperse the clippings over the lawn for even fertilization.

If the finished lawn appearance is unsatisfactory, try one or more of the following:

•Sharpen the blade.

•Walk at a slower pace while mowing.

•Raise the cutting height on your lawn mower.

•Cut the grass more frequently.

•Overlap cutting swaths instead of cutting a full swath with each pass.

•Set the cutting height on the front wheels one notch lower than the rear wheels. For example, set the front wheels at 2-1/4 inches (57 mm) and the rear wheels at the 2-3/4 inches (70 mm).

Cutting Leaves

•After cutting the lawn, ensure that half of the lawn shows through the cut leaf cover. You may need to make more than one pass over the leaves.

•For light leaf coverage, set all the wheels at the same cutting height setting.

•If there are more than 5 inches (12.7 cm) of leaves on the lawn, set the front cutting height 1 or 2 notches higher than the rear cutting height. This makes it easier to feed the leaves under the lawn mower deck.

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Metro 21 Series specifications

The Exmark Metro 21 Series is a robust and versatile lawn mower designed to meet the needs of both professional landscapers and homeowners seeking a reliable cutting solution. Known for its durability, performance, and user-friendly design, the Metro 21 series has become a popular choice in the mowing industry.

One of the standout features of the Metro 21 Series is its compact and lightweight design, making it ideal for navigating through tight spaces and small yards. This mower is powered by a 21-inch cutting deck, which provides precise cutting and allows for excellent maneuverability. The cutting deck is crafted from high-quality materials, ensuring longevity and resistance to wear and tear over time.

Powered by Exmark's commercial-grade Kohler or Subaru engines, the Metro 21 offers powerful performance without sacrificing fuel efficiency. These engines are designed to deliver reliable starting and consistent power, making it easier to tackle tough mowing conditions. Additionally, the mower features Exmark’s patented rear-discharge system, which contributes to a clean cut and enhanced productivity by allowing clippings to be evenly distributed back onto the lawn.

The Metro 21 Series incorporates a user-friendly height adjustment system, allowing operators to quickly and easily adjust the cutting height to suit varying lawn conditions. This feature provides versatility for achieving the perfect cut in different grass types and growth lengths. Furthermore, the mower is equipped with comfortable handles that can be adjusted for various operator heights, ensuring ergonomic operation and reducing fatigue during extended use.

Another noteworthy technology in the Metro 21 Series is its folding handle design. This allows for easy storage and transport, making it an excellent choice for lawn care professionals who need to maneuver their equipment frequently. The model also comes with a durable composite grass bag for easy clipping collection, ensuring a tidy cleanup after mowing.

In summary, the Exmark Metro 21 Series is a well-engineered mower that combines power, efficiency, and convenience. Ideal for both commercial and residential use, its features cater to the needs of various users. Whether navigating small yards or tackling dense grass, the Metro 21 delivers superior performance, making it a worthwhile investment for lawn care enthusiasts and professionals alike.