SERVICE AND ADJUSTMENTS

2.Route the other end of the new drive belt through hole in housing.

3.Reattach debris shield to housing with screw previ- ously removed. Be sure tab of debris shield is in gap of housing.

4.Position blade on the blade adapter aligning the two

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

5.Be sure the trailing edge of blade (opposite sharp edge) is up toward the engine as shown (See Fig. 19).

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

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

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

IMPORTANT: BLADE BOLT IS HEAT TREATED. IFBOLT NEEDS REPLACING, REPLACE ONLYWITHAPPROVED BOLT SHOWN IN THE REPAIR PARTS SECTION OF THIS MANUAL.

8.Return mower to upright position.

9.Install new drive belt into idler arm assembly, then around the drive pulley.

NOTE: Pulling on the drive belt (to install it on the drive pulley) will cause the other end of the belt to free itself from the debris shield retainer and come into contact with the pulley end of the blade adapter.

10.Reattach drive cable and return spring to the idler arm assembly, then reattach drive cable to anchor.

11.Reattach drive cover with screws previously removed (See Fig. 17).

12.Connect spark plug wire to spark plug.

TO ADJUST HANDLE (See Fig. 21)

The handle on your lawn mower has multiple height posi- tions - adjust to height that suits you.

1.Remove knob and carriage bolt on one side of the lower handle.

2.While holding handle assembly, remove knob and carriage bolt from opposite side, align hole in handle with desired hole in handle bracket and reassemble bolt and knob and tighten securely.

3.Align opposite side of handle with same positioning hole and secure with bolt and knob.

KNOB

BOLT

HANDLE

BRACKET

LOW

HIGH

FIG. 21

ENGINE

ENGINE SPEED

Your engine speed has been factory set. Do not attempt to increase engine speed or it may result in personal injury. If you believe that the engine is running too fast or too slow, take your lawn mower to a Husqvarna service center for repair and adjustment.

CARBURETOR

Your carburetor is not adjustable. If your engine does not operate properly due to suspected carburetor problems, take your lawn mower to a Husqvarna service center for repair and/or adjustment.

IMPORTANT: NEVER TAMPER WITH THE ENGINE GOVERNOR, WHICH IS FACTORY SET FOR PROPER ENGINE SPEED. OVERSPEEDING THE ENGINEABOVE THE FACTORY HIGH SPEED SETTING CAN BE DANGEROUS. IF YOU THINK THE ENGINE-GOVERNED HIGH SPEED NEEDS ADJUSTING, CONTACT YOUR NEAREST HUSQVARNA SERVICE CENTER, WHICH HAS PROPER EQUIPMENT AND EXPERIENCE TO MAKE ANY NECESSARY ADJUSTMENTS.

STORAGE

Immediately prepare your mower for storage at the end of the season or if the unit will not be used for 30 days or more.

LAWN MOWER

When lawn mower is to be stored for a period of time, clean it thoroughly, remove all dirt, grease, leaves, etc. Store in a clean, dry area.

1.Clean entire lawn mower (See “CLEANING” in the Maintenance section of this manual).

2.Lubricate as shown in the Maintenance section of this manual.

3.Be sure that all nuts, bolts, screws, and pins are se- curely fastened. Inspect moving parts for damage, breakage and wear. Replace if necessary.

4.Touch up all rusted or chipped paint surfaces; sand lightly before painting.

HANDLE (See Figs. 22 and 23)

You can fold your lawn mower handle for storage.

1.Loosen the two (2) handle knobs on sides of the upper handle and allow handle to fold down to the rear.

15

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Husqvarna 87521HVE owner manual To Adjust Handle See Fig, Carburetor, Handle See Figs

87521HVE specifications

The Husqvarna 87521HVE is an advanced lawn mower designed for homeowners looking for a reliable and efficient solution for maintaining their lawns. This model combines robust engineering with innovative features, making it an excellent choice for both small and medium-sized lawns.

One of the standout features of the Husqvarna 87521HVE is its powerful engine. Equipped with a reliable 160cc Honda engine, the mower delivers consistent performance, ensuring that it can tackle various grass types and terrains. The engine is not only powerful but also designed to be fuel-efficient, which helps reduce operating costs over time.

The Husqvarna 87521HVE features a 21-inch cutting deck that allows for a wide cutting path, which can significantly reduce mowing time. The cutting deck is made from high-quality steel, ensuring durability and longevity. Additionally, the mower's cutting height is adjustable, offering seven different positions ranging from 1 inch to 4 inches. This versatility allows users to customize the cut according to the specific needs of their lawn.

Another innovative technology featured in the Husqvarna 87521HVE is the AutoWalk™ assists. This self-propelling technology allows users to control the mower's speed with ease, offering a comfortable mowing experience without the need for excessive physical effort. The mower adjusts its pace according to the user's walking speed, making it particularly user-friendly.

The ergonomic handlebar design ensures that users can maneuver the mower effortlessly while also reducing fatigue during extended use. The handlebar can be quickly folded for easy storage, an essential feature for those with limited garage space.

For convenience, the Husqvarna 87521HVE comes with a large 2.6-bushel grass catcher that can be easily detached for quick emptying. This feature means users can spend less time stopping to empty the collector, allowing them to focus more on mowing the lawn.

In terms of maintenance, the Husqvarna 87521HVE is designed with user-friendly access points for easy oil changes and spark plug replacements. This makes routine maintenance more manageable and extends the life of the mower.

In summary, the Husqvarna 87521HVE is a high-performance lawn mower that combines power, efficiency, and user-friendly features. Its advanced technology, durable construction, and ergonomic design make it an excellent investment for anyone serious about lawn care. Whether you're tackling a small yard or a more extensive property, this mower is equipped to deliver outstanding results.