Husqvarna 521SSE Page 20 Operator'S Manual Download

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MAINTENANCE

1740274

HOW TO ADJUST THE BELT TENSION

IMPORTANT: When you release the auger bail, the au-

ger must stop rotating. If the auger does not stop, ad-

just the belt tension as follows:

1. Disconnect the spark plug wire from the spark plug.
2. Remove the belt cover.
3. Loosen the

idler pulley nut

(see Figure 15).

4. Move the

idler pulley

to the bottom of the idler arm

slot. If the

idler pulley

is already in the bottom posi-

tion, replace the

auger belt.

See How To Replace The

Auger Belt in the Maintenance section.

5. Tighten the

idler pulley nut.

6. Install the belt cover.

HOW TO REPLACE THE AUGER BELT

1. Disconnect the spark plug wire from the spark plug.
2. Remove the belt cover (see Figure 12).
3. Remove the

belt guide

(see Figure 15)

4. Remove the

auger belt

from the

engine drive pulley.

5. Push down the

idler arm

to move the

brake

away the

auger drive pulley.

Remove the

auger belt

from the

auger drive pulley

6. Loosen the

idler pulley nut.

Move the idler pulley to the

top of the idler arm slot. Tighten the

idler pulley nut

7. Install a new

auger belt

8. Install the

belt guide.

Make sure the fasteners that

secure the

belt guide

are tight.

9. Check the operation. When you release the

auger

bail,

the auger must stop turning. When you engage

the

auger bail,

there MUST be clearance between the

brake arm

and the

auger drive pulley

10. When you release the

auger bail,

the auger must stop

rotating. Make sure the

brake

contacts the

auger

drive pulley

(Figure 15) and that the

auger cable

spring

(Figure 14) has slack (no tension). If not, check

the cable spring adjustment as follows:

11. Remove the

boot

from the

auger cable spring

as fol-

lows:

Disconnect the end of the

idler spring

from the

idler arm

(see Figure 15)

Remove the

auger belt

from the

idler pulley.

Remove the end of the

auger cable spring

from

the

auger bail

(see Figure 14).

Remove the

boot

from the

auger cable spring.

Attach the end of the

auger cable spring

to the

auger bail.

12. To adjust the

auger cable spring

Install the

auger belt

to the

idler pulley

(see

Figure 15).

Attach the

idler spring

to the

idler arm.

Loosen the

jam nut

(see Figure 14).

Turn the

adjuster

until the

auger cable

is slightly

slack.

Tighten the

jam nut.

13. Remove the

idler spring

from the

idler arm

(see

Figure 15)

Remove the

auger belt

from the

idler

pulley

Install the

boot

onto the

auger cable spring

14. Install the

auger belt,

idler spring

, and belt cover.

Auger Cable Spring

Auger

Bail

Jam Nut

Adjuster

Figure 14

Auger Cable

Boot

Figure 15

Idler Pulley

Nut

Idler Arm

Idler Pulley

Auger

Belt

Engine Drive

Pulley

Brake

Auger

Drive

Pulley

Idler

Spring

Belt Guide

Summary of Contents for 521SSE

Page 1: ...SSEMBLY OPERATION AND MAINTENANCE The owner must be certain that all the product information is included with the unit This information includes the INSTRUCTION BOOKS the REPLACEMENT PARTS and the WARRANTIES This information must be included to make sure state laws and other laws are followed PRODUCT INFORMATION 1740274 TP 100 4350 01 SW R ...

Page 2: ...ssembled and are sold in cartons It is the responsibility of the owner to make sure the as sembly instructions in this manual are exactly followed Other units are purchased in an assembled condition On assembled units it is the responsibility of the owner to make sure the unit is correctly assembled The owner must carefully check the unit according to the instructions in this manual before it is f...

Page 3: ...ipment Hazard Symbols and the meanings These symbols are used on your equipment and defined in your operating manual Review and understand the meanings The use of one of these symbols combined with a signal word will alert you to potential hazards and how to avoid them Explosion Toxic fumes Shock Hot Surface Fire Operator s Manual Read and understand before performing any activity or running equip...

Page 4: ... nozzle in contact with the rim of the fuel tank or container opening at all times until refueling is com plete Do not use a nozzle lock open device g Replace gasoline cap securely and wipe up spilled fuel h If fuel is spilled on clothing change clothing immediate ly 5 Use extension cords and receptacles as specified by the manufacturer for all units with electric drive motors or electric starting...

Page 5: ...t tool not your hands Service Maintenance And Storage 1 Check shear bolts and other bolts at frequent intervals for proper tightness to be sure the equipment is in safe work ing condition 2 Never store the machine with fuel in the tank inside a building where ignition sources are present such as hot water and space heaters or clothes dryers Allow the en gine to cool before storing in any enclosure...

Page 6: ...OWER 14 HOW TO CONTROL SNOW DISCHARGE 14 HOW TO THROW SNOW 14 HOW TO MOVE FORWARD 14 HOW TO MIX THE FUEL MIXTURE 15 BEFORE STARTING THE ENGINE 16 HOW TO STOP THE ENGINE 16 HOW TO START THE ENGINE 16 HOW TO CLEAR A CLOGGED DISCHARGE CHUTE 17 HOW TO USE THE CLEAN OUT TOOL 17 SNOW THROWING TIPS 17 SERVICE RECOMMENDATIONS 18 LUBRICATION 18 HOW TO LUBRICATE THE IDLER ARM 19 MAINTENANCE 20 HOW TO ADJUST...

Page 7: ...the purpose for the warning or dan ger given in the safety decal If you do not understand the meaning then thoroughly read all safety and operation in structions in this Owner s Manual or contact your local deal er If any safety decals become worn or damaged and cannot be read order replacement decals from your local dealer Identifying Your Snowthrower The snowthrower has two 2 identifying numbers...

Page 8: ...cts for noncommercial nonprofessional noninstitutional or nonincome producing use except as herein stated All consumer product use must have been limited to the owner s residence 2 Year or 2 000 Hour 1 Year or 1 000 Hour Warranty Husqvarna Utility Vehicles 1 Year Warranty Power cutters stump grinder pole pruners and pole saws for noncommercial nonprofessional noninstitutional or nonincome producin...

Page 9: ...NT PROHIBITED BY APPLICABLE LAW ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ON THESE PRODUCTS IS LIMITED IN DURATION TO THE WARRANTY PERIOD AS DEFINED IN THE LIMITED WARRANTY STATEMENT HUSQVARNA RESERVES THE RIGHT TO CHANGE OR IMPROVE THE DESIGN OF THE PRODUCT WITHOUT NOTICE AND DOES NOT ASSUME OBLIGATION TO UPDATE PREVIOUSLY MANUFACTURED PRODUCTS Some states do not...

Page 10: ...om the carton 2 Remove and discard the packing material from around the snow thrower 3 Cut down all four corners of the carton and lay the side panels flat 4 Cut off the plastic bag that covers the snowthrower 5 Hold onto the lower handle and pull the snow thrower off the carton CAUTION DO NOT back over cables 6 Remove the packing material from the handle assembly HOW TO INSTALL THE CHUTE CRANK 1 ...

Page 11: ... scratching the lower handle NOTE Make sure the cables are not caught between the upper and lower handle 4 Tighten the knobs Upper Handle Knob Figure 3 Lower Handle Chute Crank Rod Upper Handle Knob Figure 4 Lower Handle HOW TO INSTALL THE CHUTE 1 Remove the three bolts and lock nuts from the chute base see Figure 5 2 Install the chute with the bolts and locknuts Make sure the locknuts are to the ...

Page 12: ...ompleted n The discharge chute rotates freely n No remaining loose parts in carton While learning how to use your snow thrower pay extra attention to the following important items n Make sure the fuel tank is filled with the correct mixture 50 1 ratio of gasoline and Husqvarna 2 Cycle oil n Become familiar with the location of all controls and under stand their function n Before starting the engin...

Page 13: ... and their functions are as follows Auger Drive Lever Starts and stops the auger Chute Control Rod Changes the direction of snow throw ing through the discharge chute Chute Deflector Changes the distance the snow is thrown Discharge Chute Changes the direction the snow is thrown Ignition Switch Key Must be inserted and turned to the ON position to start the engine Turn key to the OFF position to s...

Page 14: ...ver See Figure 9 NOTE If the snowthrower continues to slowly move forward see How To Adjust The Auger Control Cable in the Maintenance Section 2 To stop the engine move the ignition key to the OFF posi tion HOW TO CONTROL SNOW DISCHARGE 1 Turn the chute control rod to set the direction of the snow throwing See Figure 7 2 Loosen the wing knob on the chute deflector and move the deflector to set the...

Page 15: ...asoline and oil as follows 1 Pour one 1 U S quart of fresh clean unleaded auto motive gasoline into a one gallon size gasoline contain er 2 Add 2 6 ounces of clean high quality Husqvarna two cycle oil to the gasoline container IMPORTANT Do not use outboard motor oil or mul ti viscosity oils such as 10W 30 or 10W 40 3 Install the fuel cap onto the gasoline container Vigor ously shake the gasoline c...

Page 16: ... primer button between primes S Do not prime if temperature is above 50 F 10 C S Push twice if temperature is 50 F 10 C to 15 F 10 C S Push four times if temperature is below 15 F 10 C S Push five time if temperature is below 0 F 18 C 8 Electric Start Push on the electric start button until the engine starts Do not crank for more than 10 seconds at a time The electric starter is thermally protecte...

Page 17: ...nditions lower the chute deflector to direct the discharged snow close to the ground where it is less likely to blow into unwanted areas 7 For safety and to prevent damage to the snow thrower keep the area to be cleared free of stones toys and other foreign objects 8 Do not use the auger propelling feature when clearing gravel or crushed rock driveways Move the handle down to slightly raise the au...

Page 18: ... Service Recom mendations are supplied to assist operator to properly maintain snow thrower This is a check list only Adjustment referred to will be found in Adjustments Repairs section of this manual AFTER EACH USE 1 Check for any loose or damaged parts 2 Tighten any loose fasteners 3 After each use remove all snow and slush off of the snowthrower to prevent freezing of auger or controls 4 Check ...

Page 19: ... the belt to slip and experience premature failure 1 Remove the screws from the belt cover see Figure 12 Remove the belt cover 2 Apply a drop of oil to the idler arm at point B see Figure 13 3 Pivot the auger bail up and down several times 4 Wipe off the excess oil 5 Install the cover Belt Cover Figure 12 Figure 13 B Idler Arm ...

Page 20: ...r must stop turning When you engage the auger bail there MUST be clearance between the brake arm and the auger drive pulley 10 When you release the auger bail the auger must stop rotating Make sure the brake contacts the auger drive pulley Figure 15 and that the auger cable spring Figure 14 has slack no tension If not check the cable spring adjustment as follows 11 Remove the boot from the auger c...

Page 21: ...step 1 Figure 16 Scraper Blade HOW TO FREE THE AUGER CABLE IMPORTANT If the auger cable will not move when you ENGAGE the bail the auger cable could be frozen in side the conduit DO NOT pull on the auger cable Instead thaw the conduit and lubricate the auger cable 1 Thaw the conduit so the auger cable moves freely 2 Work grease into the opening on the top of the conduit where the auger cable enter...

Page 22: ...UGER CONTROL CABLE The auger control cable is adjusted at the factory During nor mal use the auger control cable can become stretched and the auger drive lever will not properly engage or disengage the auger 1 Remove the end of the auger cable spring from the au ger bail see Figure 19 2 Remove the boot from the auger cable spring 3 Attach the end of the auger cable spring to the auger bail 4 Loose...

Page 23: ... the engine pulley Be careful not to bend the belt guides 4 Remove the drive belt from the auger pulley See Figure 20 5 Remove the old drive belt 6 To install the new drive belt reverse the above steps 7 Make sure the drive belt is seated properly on the pul leys NOTE When the auger control lever is engaged the belt guides must be 1 16 from the drive belt See Figure 21 8 Install belt cover Belt Co...

Page 24: ... keep the auger from rotating set a 2 x4 piece of wood on the center paddle to secure auger 5 Use a 7 16 inch wrench and remove the fasteners from the bearing assembly Remove the bearing assem bly from the auger housing 6 Slide the auger out of the bearing assembly on the right side of the snow thrower 7 Tip the auger enough to allow the auger to slide out of the auger housing 8 To install auger r...

Page 25: ...cked The spark plug is housed in the engine compartment under the top cover and cannot be seen under normal conditions WARNING STOP the engine Wait for it to cool before removal of spark plug CAUTION DO NOT clean the plug with abrasives 1 Remove the fuel cap see Figure 23 2 Remove the screws from the shroud Remove the shroud Install the fuel cap 3 Disconnect the spark plug wire see Figure 24 4 Cle...

Page 26: ...g hole Then cover the spark plug hole with a rag to absorb oil spray Next rotate the engine by pulling the starter two or three times Finally reinstall spark plug and attach spark plug wire 3 Thoroughly clean the snowthrower 4 Lubricate all lubrication points see Lubrication in the Service Recommendations section 5 Insure that all nuts bolts and screws are securely fas tened Inspect all visible mo...

Page 27: ...cable Refer to Cable Adjustment in the Maintenance section of this manual Unit fails to discharge snow Auger drive belt loose or damaged Replace or adjust auger drive belt Refer to Drive Belt Replacement and Drive Belt Adjustment in the Maintenance section of this manual Auger control cable not adjusted correctly Adjust auger control cable Refer to Cable Adjustment in the Maintenance section of th...

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