7.For Sharpening: File the top side of the blade to maintain its original cutting angle (Fig. 27A) and inner cutting edge radius (Fig. 27B). The blade will remain balanced if you remove the same amount of material from both cutting edges.

 

 

 

 

Cutting Edge Radius

 

 

Cutting Angle

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

G0220

 

 

 

 

 

 

 

 

 

Figure 27

 

 

 

 

 

 

8.Check the balance of the blade by placing the center hole of the blade over a nail or screwdriver shank clamped horizontally in a vise (Fig. 28). If either end of the blade rotates downward, file that end (not the cutting edge). The blade is properly balanced when neither end drops.

G0221

Figure 28

9.Re-install a sharp balanced Exmark blade, the accelerator, the lock washer, and the blade bolt. The sail of the blade must point toward the top of the lawn mower housing for proper installation. Torque the blade bolt to 50 ft-lb (68 N-m).

WARNING

POTENTIAL HAZARD

♦Operating the lawn mower without the accelerator in place can cause the blade to flex, bend, or break.

WHAT CAN HAPPEN

♦Thrown objects from a broken blade can result in serious injury or death to the operator or bystanders.

HOW TO AVOID THE HAZARD

♦Do not operate the lawn mower without the accelerator.

10.Return the lawn mower to its upright position.

11.Connect the wire to the spark plug.

5.7Cleaning under the belt cover (Self-Propelled Models Only):

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

2.Disconnect the wire from the spark plug (Fig 12 & 14).

3.Remove the bolts that secure the belt cover tot eh lawn mower housing (Fig. 29).

Belt Cover

G0223

Figure 29

4.Lift off the cover and brush out all the debris around the belt area.

5.Install the belt cover.

-27 -

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Image 32
Exmark Metro 21 Series manual Cutting Edge Radius
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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.
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