Husqvarna 5521BBC owner manual Lawn Mower, Engine

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MAINTENANCE

LAWN MOWER

Always observe safety rules when performing maintenance.

TIRES

•Keep tires free of gasoline, oil, or insect control chem- icals which can harm rubber.

•Avoid stumps, stones, deep ruts, sharp objects and other hazards that may cause tire damage.

DRIVE WHEELS

Check rear drive wheels each time you mow to be sure they move freely. The wheels not turning freely means trash, grass cuttings, etc., may be inside the drive wheel and dust cover area and must be cleaned out to free drive wheels.

If necessary to clean drive wheels, check both rear wheels.

BLADE CARE

For best results, mower blade must be kept sharp. Replace a bent or damaged blade.

CAUTION: Useonlyareplacementblade approved by the manufacturer of your mower. Using a blade not approved by the manufacturer of your mower is hazardous, could damage your mower and void your warranty.

TO REMOVE BLADE (See Fig. 16)

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

2.Turn lawn mower on its side. Make sure air fi lter and carburetor are up.

3.Use a wood block between blade and mower housing to prevent blade from turning when removing blade bolts.

NOTE: Protect your hands with gloves and/or wrap blade with heavy cloth.

4. Remove blade bolts by turning counter-clockwise.

TO REPLACE BLADE (See Fig. 16)

1.Position the blade. Be sure trailing edge of blade (op- posite sharp edge) is up toward the engine and install the blade bolts.

2.Use block of wood between blade and lawn mower hous- ing and tighten the blade bolts, turning clockwise.

•The recommended tightening torque is 35-40 ft. lbs.

IMPORTANT: BLADE BOLTS ARE HEAT TREATED. IF BOLTS NEED REPLACING, REPLACE ONLY WITHAPPROVED BOLTS SHOWN IN THE REPAIR PARTS SECTION OF THIS MANUAL.

BLADE

BLADE

BOLTS

TRAILING

EDGE

TO SHARPEN BLADE

NOTE: We do not recommend sharpening blade - but if you do, be sure the blade is balanced. Care should be taken to keep the blade balanced. An unbalanced blade will cause eventual damage to lawn mower or engine.

•The blade can be sharpened with a fi le or on a grind- ing wheel. Do not attempt to sharpen while on the mower.

•To check blade balance, drive a nail into a beam or wall. Leave about one inch of the straight nail exposed. Place center hole of blade over the head of the nail. If blade is balanced, it should remain in a horizontal position. If either end of the blade moves downward, sharpen the heavy end until the blade is balanced.

GRASS CATCHER

•The grass catcher may be hosed with water, but must be dry when used.

•Check your grass catcher often for damage or dete- rioration. Through normal use it will wear. If catcher needs replacing, replace only with approved replace- ment catcher shown in the Repair Parts section of this manual. Give the mower model number when order- ing.

GEAR CASE

•To keep your drive system working properly, the gear case and area around the drive should be kept clean and free of trash build-up. Clean under the drive cover twice a season.

•The gear case is fi lled with lubricant to the proper level at the factory. The only time the lubricant needs attention is if service has been performed on the gear case.

•If lubricant is required, use only Texaco Starplex Pre- mium 1 Grease, Part No. 750369. Do not substitute.

ENGINE

LUBRICATION

Use only high quality detergent oil rated with API service classifi cation SG–SL. Select the oil's SAE viscosity grade according to your expected operating temperature.

NOTE: Multi-viscosity oils (5W30, 10W30 etc.) improve starting in cold weather, and you should check your engine oil level frequently to avoid possible engine damage from running low on oil.

Change the oil after every 25 hours of operation or at least once a year if the lawn mower is not used for 25 hours in one year.

Check the crankcase oil level before starting the engine and after each fi ve (5) hours of continuous use. Tighten oil plug securely each time you check the oil level.

FIG. 16

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Contents 5521BBC III. Children Safe Operation Practices for Walk-Behind MowersGeneral Operation II. Slope OperationTable of Contents To Remove Lawn Mower from Carton AssemblyHOW to SET UP Your Lawn Mower To Install AttachmentsKnow Your Lawn Mower Meets Cpsc Safety RequirementsOperation Blade Control See Fig HOW to USE Your Lawn MowerDrive Control Adjustment See Fig Throttle / Engine Control See FigTo Convert Mower To Adjust Cutting Height See FigTo Attach Grass Catcher See Fig To Empty Grass Catcher See FigADD OIL See Fig Simple Steps to Remember When Converting Your Lawn MowerBefore Starting Engine Mulching Mowing Tips To Stop EngineMowing Tips ADD Gasoline See FigBefore Each USE MaintenanceLubrication Chart General RecommendationsEngine Lawn MowerMuffler CleaningClean Under Drive Cover AIR FilterStorage Service and AdjustmentsCylinder OtherFuel System Engine OILProblem Cause Correction TroubleshootingPage KEY Part Description Page KEY Part Description Rantywar Tementsta

5521BBC specifications

The Husqvarna 5521BBC is a powerful and versatile lawn mower designed for homeowners who seek efficiency and ease of use in their yard care routine. Boasting a robust build and innovative features, this mower is well-suited for a variety of residential lawns, making it a popular choice among gardening enthusiasts.

One of the standout features of the Husqvarna 5521BBC is its 160cc Honda engine, known for its reliability and durability. This engine not only delivers ample power for cutting through thick grass but also ensures efficient fuel consumption, allowing users to mow their lawns without frequent refueling stops. The self-propulsion system further enhances usability, making it easier to navigate various terrains and slopes without excessive effort from the operator.

The mower is equipped with a 21-inch cutting deck, which strikes an ideal balance between maneuverability and the ability to cover larger areas in a single pass. This feature is complemented by a 3-in-1 cutting system that provides versatility in grass management. Users can choose between bagging, mulching, or side discharge options according to their specific lawn care preferences. The mulching capability returns finely chopped grass clippings to the soil, serving as a natural fertilizer that promotes healthier lawn growth.

In terms of comfort, the Husqvarna 5521BBC includes an ergonomic handle that is adjustable in height, allowing users of different statures to find a comfortable mowing position. The folding handle design also facilitates easy storage, making it a practical choice for those with limited garage space.

Durability is another key characteristic of the Husqvarna 5521BBC, as it features a heavy-duty steel construction that withstands the rigors of regular use. The robust build ensures that the mower can tackle tough mowing tasks year after year without significant wear and tear.

Safety is a priority with the Husqvarna 5521BBC, which comes with features designed to minimize risks during operation. The mower is equipped with a safety switch that stops the blade when the operator releases the handle, ensuring that accidents are less likely to occur.

In conclusion, the Husqvarna 5521BBC is an exceptional lawn mower that combines power, efficiency, and user-friendly features. With its reliable engine, versatile cutting options, and durable construction, it is a solid investment for anyone looking to maintain a beautiful lawn. Its thoughtful design is tailored for both novice and seasoned gardeners, making it an ideal choice for a variety of lawn care needs.
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