Husqvarna 5521CH owner manual Lawn Mower

Page 11

MAINTENANCE

LAWN MOWER

Always observe safety rules when performing any main- tenance.

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.

BLADE CARE

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

TO REMOVE BLADE (See Fig. 11)

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

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

4.Remove blade bolt by turning counter-clockwise.

5.Remove blade and attaching hardware (bolt, lock washer and hardened washer).

NOTE: Remove the blade adapter and check the key inside hub of blade adapter. The key must be in good condition to work properly. Replace adapter if damaged.

TO REPLACE BLADE (See Fig. 11)

1.Position the blade adapter on the engine crankshaft. Be sure key in adapter and crankshaft keyway are aligned.

2.Position blade on the blade adapter aligning the two

(2)holes in the blade with the raised lugs on the adapter.

3.Be sure the trailing edge of blade (opposite sharp edge) is up toward the engine.

4.Install the blade bolt with the lock washer and hardened washer into blade adapter and crankshaft.

5.Use block of wood between blade and lawn mower housing and tighten the blade bolt, turning clockwise.

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

IMPORTANT: BLADE BOLT IS GRADE 8 HEATTREATED.

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 grinding 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.

11

BLADE ADAPTER

 

CRANKSHAFT

 

 

KEYWAY

KEY

 

 

BLADE

 

 

LOCK

 

 

WASHER

 

 

BLADE

 

CRANK-

BOLT

 

 

SHAFT

HARDENED

 

TRAILING EDGE

BLADE ADAPTER

WASHER

FIG. 11

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 a manufacturer approved replacement catcher. Give the lawn mower model number when ordering.

DRIVE WHEELS

Check front drive wheels each time before you mow to be sure they move freely.

The wheels not turning freely means trash, grass cuttings, etc. are in the drive wheel area and must be cleaned to free drive wheels.

If necessary to clean the drive wheels, be sure to clean both front wheels.

1.Remove hubcaps, locknuts and washers.

2.Remove wheels from wheel adjusters.

3.Remove any trash or grass cuttings from inside the dust cover, pinion and/or drive wheel gear teeth.

4.Put wheels back in place.

NOTE: If after cleaning, the drive wheels do not turn freely, contact a qualifi ed service center.

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.

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Contents 5521CH III. Children IV. ServiceSafe Operation Practices for Walk-Behind Mowers General 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 To Convert Mower HOW to USE Your Lawn MowerEngine Speed Engine Zone ControlTo Empty Grass Catcher See Fig Simple Steps to Remember When Converting Your Lawn MowerTo Start Engine See Fig Before Starting EngineADD OIL See Figs ADD Gasoline See FigMulching Mowing Tips Mowing TipsTo Stop Engine Before Each USE MaintenanceLubrication Chart General RecommendationsLawn Mower Engine CleaningCarburetor Service and AdjustmentsTo Adjust Cutting Height Rear DeflectorEngine OIL StorageOther Fuel SystemProblem Cause Correction Troubleshooting PointsPage KEY Part Description Page 532 17 KEY Part DescriptionHusqvarna

5521CH specifications

The Husqvarna 5521CH is a versatile and powerful lawn mower designed for homeowners who seek efficiency and ease of use when maintaining their lawns. This 21-inch walk-behind mower is equipped with a range of features and technologies that enhance its performance and user experience.

One of the standout features of the Husqvarna 5521CH is its reliable Honda engine which provides ample power for tackling grass of various heights and densities. The Honda engine is known for its durability and fuel efficiency, allowing users to mow longer without frequent refueling. With a cutting width of 21 inches, this mower can cover large areas efficiently, making it an ideal choice for medium to large lawns.

The Husqvarna 5521CH incorporates an adjustable cutting height system, allowing users to select from six different height positions, ranging from 1 inch to 4 inches. This flexibility enables the mower to adapt to different grass types and seasonal growth patterns, ensuring a clean and professional-looking cut every time.

The mower features a sturdy steel deck that is built to withstand the rigors of mowing while also providing a smooth and even cut. The Rust-resistant finish on the deck helps improve the mower's longevity while reducing maintenance needs. Furthermore, the rear bagging system effectively collects grass clippings, allowing for easy disposal and promoting a neat lawn appearance.

Ergonomics play a crucial role in the design of the Husqvarna 5521CH. The adjustable handle provides comfortable operation for users of varying heights, while the foldable design allows for easy storage and transport. This is particularly advantageous for those with limited garage space.

The Husqvarna 5521CH is also equipped with innovative technologies such as the Auto Walk self-propel system. This feature enhances maneuverability, allowing users to maintain a comfortable walking pace without exerting extra effort. The mower's design minimizes vibrations, ensuring a more pleasant mowing experience.

In summary, the Husqvarna 5521CH is a robust and efficient lawn mower that combines power, versatility, and user-friendly technology. With its durable construction, adjustable cutting height, and ergonomic design, it stands out as an excellent choice for homeowners looking to maintain their lawns effortlessly and achieve professional results.
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