Problem

Engine runs rough

Lawn mower or engine vibrates excessively

Uneven cutting pattern

Discharge chute plugs

Lawn mower does not self- propel (Self-Propelled Models Only)

Possible Causes

1.The wire is not connected to the spark plug.

2.The spark plug is pitted, fouled, or the gap is incorrect.

3.The throttle lever is not in the Fast position.

4.The air filter element is dirty and is restricting the air flow.

1.The blade is bent or is out of balance.

2.The blade mounting bolt is loose.

3.The underside of the lawn mower deck contains clippings and debris.

4.The engine mounting bolts are loose.

1.All four wheels are not at the same height.

2.The blade is dull.

3.You are mowing in the same pattern repeatedly.

4.The underside of the lawn mower deck contains clippings and debris.

1.The throttle lever is not in the Fast position.

2.The cutting height is too low.

3.You are mowing too fast.

4.The grass is wet.

5.The underside of the lawn mower deck contains clippings and debris.

1.The self-propel drive cable is out of adjustment or is damaged.

2.There is debris under the belt cover.

Corrective Action

1.Connect the wire to the spark plug.

2.Check the spark plug and adjust the gap if necessary. Replace the spark plug if it is pitted, fouled, or cracked.

3.Move the throttle lever to the Fast position.

4.Clean the air filter pre-cleaner and/or replace the paper air filter.

1.Balance the blade. If the blade is bent, replace it.

2.Tighten the blade mounting bolt.

3.Clean the underside of the lawn mower deck.

4.Tighten the engine mounting bolts.

1.Place all four wheels at the same height.

2.Sharpen and balance the blade.

3.Change the mowing pattern.

4.Clean the underside of the lawn mower deck.

1.Move the throttle lever to the Fast position.

2.Raise the cutting height.

3.Slow down.

4.Allow the grass to dry before mowing.

5.Clean the underside of the lawn mower deck.

1.Adjust the self-propel drive cable. Replace the cable if necessary.

2.Clean the debris from under the belt cover.

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Exmark Metro 21 Series manual Corrective Action
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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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