MAINTENANCE

TO CHANGE ENGINE OIL (See Fig. 11)

NOTE: Before tipping lawn mower to drain oil, empty fuel tank by running engine until fuel tank is empty.

1.Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with plug.

2.Remove engine oil cap; lay aside on a clean surface.

3.Tip lawn mower on its side as shown and drain oil into a suitable container. Rock lawn mower back and forth to remove any oil trapped inside of engine.

CONTAINER

FIG. 11

4.Wipe off any spilled oil from lawn mower or side of engine.

5.Slowly pour oil down the oil fi ll spout, stopping every few ounces to check the oil level with the dipstick.

6.Stop adding oil when you reach the FULL mark on the dipstick. Wait a minute to allow oil to settle.

7.Continue adding small amounts of oil, rechecking the dipstick until oil level settles at FULL. DO NOT over- fi ll, or engine will smoke heavily from the muffl er on startup.

8.Always be sure to retighten oil dipstick before starting engine.

9.Reconnect spark plug wire to spark plug.

AIR FILTER (See Fig. 13)

Your engine will not run properly and may be damaged by using a dirty air fi lter. Replace the air fi lter cartridge every 100 hours of operation or every season, whichever occurs fi rst. Service air cleaner more often under dusty conditions.

TO CLEAN AIR FILTER

1.Loosen screw and tilt cover to remove.

2.Carefully remove cartridge.

3.Clean by gently tapping on a fl at surface. If very dirty, replace cartridge.

CAUTION: Petroleum solvents, such as kerosene, are not to be used to clean cartridge. They may cause deterioration of the cartridge. Do not oil cartridge. Do not use pressurized air to clean or dry cartridge.

4.Install cartridge, then replace cover making sure the tabs are aligned with the slots in the back plate. Fasten screw securely.

LIP

BACK PLATE

CARTRIDGE

 

 

SLOT

 

COVER

COVER

TAB

FIG. 13

MUFFLER

Inspect and replace corroded muffl er as it could create a fi re hazard and/or damage.

SPARK PLUG

Replace spark plug at the beginning of each mowing season or after every 100 hours of operation, whichever occurs

first. Spark plug type and gap setting are shown in the “PRODUCT SPECIFICATIONS” section of this manual.

CLEANING

IMPORTANT: FOR BEST PERFORMANCE, KEEP MOWER HOUSING FREE OF BUILT-UP GRASS AND TRASH. CLEAN THE UNDERSIDE OF YOUR MOWER AFTER EACH USE.

CAUTION: Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with plug.

•Clean the underside of your lawn mower by scraping to remove build-up of grass and trash.

•Clean engine often to keep trash from accumulating. A clogged engine runs hotter and shortens engine life.

•Keep fi nished surfaces and wheels free of all gasoline, oil, etc.

•We do not recommend using a garden hose to clean lawn mower unless the electrical system, muffl er, air fi lter and carburetor are covered to keep water out. Water in engine can result in shortened engine life.

11

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Husqvarna 6521CM owner manual Cleaning, To Change Engine OIL See Fig, AIR Filter See Fig, Muffler, Spark Plug
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6521CM specifications

The Husqvarna 6521CM is a cutting-edge walk-behind lawn mower that blends power, functionality, and ease of operation, making it a suitable choice for homeowners and professionals alike. Known for its robust construction and innovative features, this mower is designed to tackle various lawn care needs, ensuring a pristine finish every time.

One of the primary features of the Husqvarna 6521CM is its powerful Honda engine, which delivers reliable performance and efficiency. This engine provides ample horsepower to handle tall grass and tough terrains, ensuring that mowing takes less time and effort. The self-propelled capabilities of the mower allow users to navigate hilly or uneven landscapes with ease, significantly reducing operator fatigue during longer mowing sessions.

The Husqvarna 6521CM is equipped with a practical 21-inch cutting deck, which strikes an ideal balance between maneuverability and cutting efficiency. The cutting deck is made of durable materials, ensuring resilience against wear and tear over time. Additionally, the mower features a 3-in-1 cutting system that allows for mulching, bagging, and side discharge, giving users the flexibility to choose their preferred grass handling option according to their lawn care needs.

Another notable technology in the Husqvarna 6521CM is its easy-starting mechanism, which eliminates the hassle often associated with traditional pull-start engines. This feature ensures that users can quickly get to work without the frustration of struggling to start the mower. The adjustable cutting height feature further enhances user convenience, offering multiple positions to suit various grass types and lengths, thus enabling precise control over the mowing height.

The ergonomic handle design of the Husqvarna 6521CM contributes to overall user comfort. The handle is adjustable, allowing for personalization based on the user’s height and preference, and the soft grip makes extended use more enjoyable. Additionally, the folding handle design facilitates easy storage, making it a space-saving option for homeowners with limited garage space.

Overall, the Husqvarna 6521CM stands out with its combination of a powerful engine, versatile cutting options, user-friendly features, and sturdy construction. This lawn mower not only enhances mowing efficiency but also allows users to achieve a beautiful lawn with minimal effort. Whether for routine lawn maintenance or tackling challenging patches, the Husqvarna 6521CM proves to be a dependable ally in lawn care.
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