Husqvarna 6521CM owner manual Troubleshooting Points, Problem Cause Correction

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TROUBLESHOOTING POINTS

PROBLEM

 

CAUSE

 

CORRECTION

 

 

 

 

 

Does not start

1.

Dirty air fi lter.

1.

Clean/replace air fi lter.

 

2.

Out of fuel.

2.

Fill fuel tank.

 

3.

Stale fuel.

3.

Empty fuel tank and refi ll tank with fresh,

 

 

 

 

clean gasoline.

 

4.

Water in fuel.

4.

Empty fuel tank and refi ll tank with fresh,

 

 

 

 

clean gasoline.

 

5.

Spark plug wire is disconnected.

5.

Connect wire to plug.

 

6.

Bad spark plug.

6.

Replace spark plug.

 

7.

Loose blade or broken blade adapter.

7.

Tighten blade bolt or replace blade adapter.

 

8.

Control bar in released position.

8.

Depress control bar to handle.

 

9.

Control bar defective.

9.

Replace control bar.

 

10.

Fuel valve lever (if equipped) in OFF position.

10.

Turn fuel valve lever to the ON position.

 

11.

Weak battery (if equipped).

11.

Charge battery.

 

12.

Disconnected battery connector (if equipped).

12.

Connect battery to engine.

 

 

 

 

 

Loss of power

1.

Rear of lawn mower housing or cutting

1.

Raise cutting height.

 

 

blade dragging in heavy grass.

 

 

 

2.

Cutting too much grass.

2.

Raise cutting height.

 

3.

Dirty air fi lter.

3.

Clean/replace air fi lter.

 

4.

Buildup of grass, leaves and trash under

4.

Clean underside of mower housing.

 

 

mower.

 

 

 

5.

Too much oil in engine.

5.

Check oil level.

 

6.

Walking speed too fast.

6.

Cut at slower walking speed.

 

 

 

 

 

Poor cut –

1.

Worn, bent or loose blade.

1.

Replace blade. Tighten blade bolt.

uneven

2.

Wheel heights uneven.

2.

Set all wheels at same height.

 

3.

Buildup of grass, leaves and trash under

3.

Clean underside of mower housing.

 

 

mower.

 

 

 

 

 

 

 

Excessive

1.

Worn, bent or loose blade.

1.

Replace blade. Tighten blade bolt.

vibration

2.

Bent engine crankshaft.

2.

Contact a qualifi ed service center.

 

 

 

 

 

Starter rope

1.

Engine fl ywheel brake is on when control

1.

Depress control bar to upper handle before

hard to pull

 

bar is released.

 

pulling starter rope.

 

2.

Bent engine crankshaft.

2.

Contact a qualifi ed service center.

 

3.

Blade adapter broken.

3.

Replace blade adapter.

 

4.

Blade dragging in grass.

4.

Move lawn mower to cut grass or other

 

 

 

 

hard surface before starting.

 

 

 

 

 

Grass catcher

1.

Cutting height too low.

1.

Raise cutting height.

not filling

2.

Lift on blade worn off.

2.

Replace blade.

(if so equipped)

3.

Catcher not venting air.

3.

Clean grass catcher.

 

 

 

 

 

Hard to push

1.

Grass is too high or wheel height is too low.

1.

Raise cutting height.

 

2.

Rear of lawn mower housing or cutting

2.

Raise rear of lawn mower housing one (1)

 

 

blade dragging in heavy grass.

 

setting higher.

 

3.

Grass catcher too full.

3.

Empty grass catcher.

 

4.

Handle height position not right for you.

4.

Adjust handle height to suit.

 

 

 

 

 

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Contents 6521CM General Operation Safe Operation Practices for Walk-Behind MowersII. Slope Operation III. ChildrenTable of Contents To Install Attachments AssemblyHOW to SET UP Your Lawn Mower To Remove Lawn Mower from CartonKnow Your Lawn Mower Meets Cpsc Safety RequirementsOperation Engine Speed HOW to USE Your Lawn MowerTo Adjust Cutting Height See Fig Engine Zone ControlADD OIL See Fig Before Starting EngineTo Empty Grass Catcher See Fig Mowing Tips To Stop EngineTo Start Engine Mulching Mowing TipsGeneral Recommendations MaintenanceLubrication Chart Before Each USETires Lawn MowerEngine Blade CareAIR Filter See Fig CleaningTo Change Engine OIL See Fig MufflerTo Adjust Handle See Figs thru Service and AdjustmentsTo Adjust Cutting Height Rear DeflectorFuel System StorageOther Engine OILTroubleshooting Points Problem Cause CorrectionService Notes Page KEY Part Description Warranty Statement

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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