Husqvarna 5521CM User Manual (English)

Questions and Answers:

J
Jacob WrightAug 18, 2025
Why my Husqvarna 5521CM does not start?
- C
  christian17Aug 18, 2025
  There are several reasons why your Husqvarna Lawn Mower might not start. It could be due to a dirty air filter, in which case you should clean or replace it. Another reason could be that you are out of fuel, so you should fill the fuel tank. If the fuel is stale, drain the tank and refill it with fresh, clean fuel. Water in the fuel can also cause this issue; drain the fuel tank and carburetor, then refill with fresh fuel. Check that the spark plug wire is connected and replace the spark plug if it's bad. Also, ensure the blade is not loose or the blade adapter is not broken. Make sure the control bar is depressed to the handle and not defective. If equipped, ensure the fuel valve lever is in the ON position, the battery is charged, and the battery connector is connected.
D
David BurtonAug 20, 2025
How to fix poor and uneven cut from Husqvarna Lawn Mower?
- J
  John PerryAug 20, 2025
  An uneven cut from your Husqvarna Lawn Mower can be due to a worn, bent, or loose blade; replace the blade and tighten the blade bolt. Another cause could be uneven wheel heights; set all wheels at the same height. Additionally, a buildup of grass, leaves, and trash under the mower can cause an uneven cut; clean the underside of the mower housing.
H
hgonzalezAug 23, 2025
Why does my Husqvarna 5521CM Lawn Mower have loss of power?
- S
  Shannon BellAug 23, 2025
  Loss of power in your Husqvarna Lawn Mower can occur if the rear of the mower housing or cutting blade is dragging in heavy grass; set the mower to a higher cut position. If you're cutting too much grass at once, also set it to a higher cut position. A dirty air filter can cause power loss, so clean or replace it. Buildup of grass, leaves, and trash under the mower can also be a culprit; clean the underside of the mower housing. Make sure there isn't too much oil in the engine by checking the oil level. Finally, walking too fast while mowing can reduce power; cut at a slower walking speed.
A
Amber VargasAug 26, 2025
What to do if my Husqvarna Lawn Mower has loss of power?
- K
  Kimberly RushAug 26, 2025
  If your Husqvarna Lawn Mower is losing power, there are several possible causes. The cutting height might be too low, causing the mower housing or blade to drag in heavy grass, or you might be cutting too much grass at once, so raise the cutting height. A dirty air filter can also lead to power loss, so clean or replace it. Check for buildup of grass, leaves, and trash under the mower and clean it if necessary. Ensure the engine oil level is correct, and reduce your walking speed while cutting.
R
rbrownAug 28, 2025
How to fix poor cut on my Husqvarna 5521CM?
- A
  Amy RodriguezAug 28, 2025
  An uneven cut with your Husqvarna Lawn Mower can be due to a few reasons. Check the blade for wear, bending, or looseness; replace it or tighten the blade bolt as needed. Ensure all wheels are set at the same height. Also, clear any buildup of grass, leaves, or trash from under the mower housing.
M
Margaret BrennanAug 30, 2025
Why is the starter rope hard to pull on my Husqvarna 5521CM?
- E
  eramirezAug 31, 2025
  If the starter rope on your Husqvarna Lawn Mower is hard to pull, it could be due to several reasons. The engine flywheel brake might be engaged when the control bar is released; depress the control bar to the upper handle before pulling the starter rope. Another cause could be a blade adapter broken, which means you should replace blade adapter. Also, make sure that the blade is not dragging in the grass. Move the lawn mower to cut grass or other hard surface before starting.
T
Teresa GutierrezSep 2, 2025
Why is my Husqvarna Lawn Mower hard to push?
- J
  James MillerSep 2, 2025
  If your Husqvarna lawn mower is hard to push, it might be because the grass is too high, or the wheel height is too low; raise the cutting height. The rear of the lawn mower housing or cutting blade dragging in heavy grass can also make it hard to push; raise the rear of the lawn mower housing one setting higher. A full grass catcher can add to the difficulty; empty the grass catcher. Lastly, the handle height position might not be right for you; adjust the handle height to suit.
E
Eric BarnettSep 5, 2025
What to do if Husqvarna Lawn Mower has excessive vibration?
- J
  John NguyenSep 5, 2025
  Excessive vibration in your Husqvarna Lawn Mower can be caused by a worn, bent, or loose blade. Replace the blade and tighten the blade bolt.
R
ramirezbradleySep 7, 2025
Why is the grass catcher not filling on my Husqvarna 5521CM Lawn Mower?
- H
  Hunter VillarrealSep 7, 2025
  If the grass catcher on your Husqvarna Lawn Mower isn't filling, it could be because the cutting height is too low; raise the cutting height. Another reason could be that the lift on the blade is worn off; replace the blade. Also, the catcher might not be venting air properly; clean the grass catcher.
H
Hannah SandovalSep 10, 2025
Why is my Husqvarna Lawn Mower so hard to push?
- O
  Olivia PittsSep 10, 2025
  If your Husqvarna Lawn Mower is hard to push, it might be due to several factors. The grass may be too high, or the wheel height may be too low, so raise the cutting height. The rear of the mower housing or blade could be dragging in heavy grass, so raise the rear of the mower housing one setting higher. Also, check if the grass catcher is too full and empty it if necessary. Finally, adjust the handle height to a comfortable position.

Husqvarna 5521CM Specifications

General

Brand	Husqvarna
Model	5521CM
Category	Lawn Mower
Language	English

Summary

SAFETY RULES

Safe Operation Practices for Walk-Behind Mowers

Key safety instructions for operating walk-behind lawn mowers.

General Operation Safety

Guidelines for safe operation of the lawn mower.

Slope Operation Safety

Precautions for safe mowing on slopes.

Children Safety

Ensuring child safety during mower operation.

Safe Gasoline Handling

Precautions for handling gasoline safely.

ASSEMBLY

Removing Mower from Carton

Steps to safely unpack the lawn mower from its shipping carton.

Setting Up the Lawn Mower Handle

Instructions for unfolding and adjusting the mower handle.

Assembling the Grass Catcher

Guide for attaching the grass catcher bag and frame.

Installing Attachments

Information on converting the mower for different functions.

OPERATION

Know Your Lawn Mower

Familiarize yourself with mower controls and safety symbols.

CPSC Safety Requirements

Compliance with safety standards for walk-behind mowers.

Using Your Lawn Mower

Engine speed, zone control, and adjusting cutting height.

Converting Mower Functions

Steps for mulching, bagging, or side discharge.

Grass Catcher and Engine Prep

Emptying catcher and adding oil before starting.

Fueling, Starting, Stopping, and Mowing

Adding gasoline, engine start/stop, mowing, and mulching tips.

MAINTENANCE

Maintenance Schedule and General Advice

Overview of maintenance tasks, frequency, and recommendations.

Pre-Use Checks and Lubrication

Essential checks before use and lubrication procedures.

Tire, Blade, and Catcher Maintenance

Care for tires, blade, and grass catcher.

Engine Component Maintenance

Maintenance for engine parts and lubrication details.

Oil, Air Filter, and Spark Plug Service

Procedures for changing oil, cleaning air filter, and replacing spark plug.

Muffler and Cleaning Procedures

Muffler inspection and general mower cleaning instructions.

SERVICE AND ADJUSTMENTS

Adjusting Cutting Height

How to adjust the mower's cutting height.

Rear Deflector

Information about the rear deflector's function and replacement.

Adjusting the Handle

Steps to adjust the mower's handle position.

Engine and Carburetor Service

Notes on engine speed, carburetor, and general engine service.

STORAGE

Lawn Mower Storage Preparation

Cleaning and preparing the mower for storage.

Folding Handle for Storage

Instructions for folding the handle for storage or transport.

Engine Storage Procedures

Fuel system, oil, cylinder, and general engine storage advice.

TROUBLESHOOTING POINTS

Mower Does Not Start

Causes and solutions for a mower that won't start.

Loss of Power Issues

Troubleshooting common causes of engine power loss.

Poor Cut Quality

Solutions for uneven or poor grass cutting.

Excessive Vibration

Identifying and resolving excessive mower vibration.

Starter Rope Issues

Troubleshooting problems with the starter rope.

Grass Catcher Not Filling

Solutions when the grass catcher isn't filling properly.

Mower Hard to Push

Reasons and fixes for a mower that is difficult to push.

SERVICE NOTES

WARRANTY STATEMENT

Limited Warranty

Details of the product's limited warranty coverage.

Husqvarna's Warranty Obligations

What Husqvarna will do under the warranty terms.

Items Not Covered by Warranty

List of components or issues excluded from warranty coverage.

Warranty Exceptions and Limitations

Conditions that void the warranty or limit liability.

Customer Responsibilities

Owner's duties to maintain warranty validity.

Obtaining Warranty Consideration

Procedure for making a warranty claim.

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Husqvarna 5521CM User Manual

Table of Contents

Questions and Answers:

Husqvarna 5521CM Specifications

Summary

SAFETY RULES

Safe Operation Practices for Walk-Behind Mowers

General Operation Safety

Slope Operation Safety

Children Safety

Safe Gasoline Handling

ASSEMBLY

Removing Mower from Carton

Setting Up the Lawn Mower Handle

Assembling the Grass Catcher

Installing Attachments

OPERATION

Know Your Lawn Mower

CPSC Safety Requirements

Using Your Lawn Mower

Converting Mower Functions

Grass Catcher and Engine Prep

Fueling, Starting, Stopping, and Mowing

MAINTENANCE

Maintenance Schedule and General Advice

Pre-Use Checks and Lubrication

Tire, Blade, and Catcher Maintenance

Engine Component Maintenance

Oil, Air Filter, and Spark Plug Service

Muffler and Cleaning Procedures

SERVICE AND ADJUSTMENTS

Adjusting Cutting Height

Rear Deflector

Adjusting the Handle

Engine and Carburetor Service

STORAGE

Lawn Mower Storage Preparation

Folding Handle for Storage

Engine Storage Procedures

TROUBLESHOOTING POINTS

Mower Does Not Start

Loss of Power Issues

Poor Cut Quality

Excessive Vibration

Starter Rope Issues

Grass Catcher Not Filling

Mower Hard to Push

SERVICE NOTES

WARRANTY STATEMENT

Limited Warranty

Husqvarna's Warranty Obligations

Items Not Covered by Warranty

Warranty Exceptions and Limitations

Customer Responsibilities

Obtaining Warranty Consideration

Related product manuals