Poulan Pro 436439 Owner'S Manual Download Page 15

15

Replacing the Drive Belt

If drive belt becomes worn, oil-soaked, excessively 

cracked, frayed, or otherwise damaged, replace the belt.
1.    Remove the drive side cover by removing the six screws 

as shown in (Figure 31).

2.   Press down on front of idler arm to release the belt 

tension (Figure 31).

3.   Remove the drive belt from the drive pulley (Figure 31).

4.   Install the new drive belt, routing it as shown in  

(Figure 32).

NOTE: 

Route the new drive belt first around the engine 

pulley, then the idler pulley, and finally around the drive 

pulley while pressing down on the front of the idler arm. 

(Figure 32).
5.   Install the drive side cover with the screws removed in 

step 1.

NOTE: 

Ensure that the drive belt is properly adjusted 

and operating; refer to Checking the Control Cable and 

Adjusting the Control Cable in the Maintenance section 

of this manual.

1.   Drive side cover
2.   Screw
3.   Drive pulley
4.   Idler arm

Figure 31

1

2

7

4

6

5

3

5.   Idler pulley
6.   Engine pulley
7.   Drive belt

2

1.   Idler arm
2.   Idler pulley
3.   Engine pulley
4.   Drive pulley

Figure 32

1

3

2

4

Summary of Contents for 436439

Page 1: ...ER Always Wear Eye Protection During Operation IMPORTANT MANUAL Do Not Throw Away WARNING Read the Owner s Manual and follow all Warnings and Safety Instructions Failure to do so can result in serious injury 436439 08 13 10 TH Printed in the U S A ...

Page 2: ...move all doormats sleds boards wires and other foreign objects 2 Disengage all clutches and shift into neutral before starting the engine motor if equipped 3 Donotoperatetheequipmentwithoutwearingadequate winter garments Avoid loose fitting clothing that can get caught in moving parts Wear footwear that will improve footing on slippery surfaces 4 Handle fuel with care it is highly flammable a Use ...

Page 3: ...r run 16 Never touch a hot engine or muffler Clearing a Clogged Discharge Chute Hand contact with the rotating auger blades inside the discharge chute is the most common cause of injury associated with snow throwers Never use your hand to clean out the discharge chute To clear the chute 1 SHUT THE ENGINE OFF 2 Wait 10 seconds to be sure the auger blades have stopped rotating 3 Always use a clearin...

Page 4: ...re supplied with the product Learn and under stand their meaning IMPORTANT Safety and instruction decals are located near areas of potential danger Replace damaged decals 2 2ª7 2 2 ª ª 7ª ª3 49ª 2 4 ª 3425 4 3ª 2 ª53 ª ª4 3ª02 5 4 0ª4 3 ª 3425 4 3ª 2ª 5452 ª2 2 4 ª 9 3 24ª4 ª34 24 ª25 05 ª 54ª4 ª34 0 5 02 2 MAINTENANCE 11 15 STORAGE 16 TROUBLESHOOTING 17 REPAIR PARTS 18 26 WARRANTY 28 SAFETY RULES...

Page 5: ...ndle knobs and pull out the two handle bolts until you can move the handle freely and rotate the handle to the operating position Figure 2 2 Tightenthehandleknobsuntiltheyaresnug Figure3 2 Installing the Discharge Chute 5 Carriage bolts 4 Flange nuts 2 Washers 1 Knob 1 Chute 1 Deflector Procedure Install the discharge chute as shown Figure 4 IMPORTANT Do not overtighten the flange nuts otherwise y...

Page 6: ...tic oil is acceptable for use in cold temperatures 1 Move the snowthrower to a level surface 2 Clean around the dipstick Figure 6 NOTE Dipstick location may vary depending on engine type 3 Remove either side mounted filler cap dipstick or high oil fill dipstick and wipe it clean 4 Insert the dipstick into the filler neck and turn clockwise until fully seated Then remove the dipstick by turning it ...

Page 7: ...o the gasoline IMPORTANT Do not use E85 blended fuels This engine is not E20 E30 E85 compatible Alternative fuels with high alcohol content can cause hard starting poor engine performance and may cause internal engine damage Checking the Engine Oil Level NOTE 10W30 synthetic oil is acceptable for use in cold temperatures 1 Move the snowthrower to a level surface 2 Clean around the dipstick Figure ...

Page 8: ...er or the choke if the engine has been running and is hot Excessive priming may flood the engine and prevent it from starting 4 Connect an extension cord to the snowthrower and plug the other end into a three hole grounded 120 volt A C receptacle and push the electric start button Figure 13 or pull the recoil start handle Figure 14 NOTE Use only a UL listed 16 gauge extension cord recommended for ...

Page 9: ...ing the electric starter extensively can overheat and damage it If the engine does not start after this series of attempts wait at least 40 minutes to allow the starter to cool before attempting to start it again If the engine does not start after the second series of attempts take the snowthrower to an Authorized Service Dealer for service NOTE If you pull the recoil handle and feel no resistance...

Page 10: ...chute left and right to free it from any ice buildup With the ignition key in the Off position pull the recoil starter handle several times or connect the electrical cord to a power source and the snowthrower and push theelectricstartbuttononcetopreventtherecoilstarter and or the electric starter from freezing up In snowy and cold conditions some controls and mov ing parts may freeze Do not use ex...

Page 11: ... right sides of the machine from the normal operating position The best time to remove snow is the early morning At this time the snow is usually dry and has not been exposed to the direct sun and warming temperatures Slightly overlap each successive path to ensure all snow will be removed Throw snow downwind whenever possible For extremely heavy snow reduce the width of snow removal by overlappin...

Page 12: ... adjusted to position 2 ensure that the auger stops properly when the control bar is released Inspecting the Auger Blades Before each session inspect the auger blades for wear When a auger blade edge has worn down have an Authorized Service Dealer replace the auger blades and the scraper Figure 22 Figure 22 1 Auger blades 2 Scraper 1 2 Adjusting the Control Cable 1 With the control bar disengaged ...

Page 13: ...fully pour oil into the oil fill hole until Full on the fill cap dipstick line Figure 26 Maxfill 18oz 0 5l type automotivedetergentoilwith an API service classification of SJ SL or higher Use Figure 25 below to select the best oil viscosity for the outdoor temperature range expected Figure 24 1 Oil fill cap dipstick 1 1 Figure 25 NOTE 10W30 synthetic oil is acceptable for use in cold temperatures ...

Page 14: ...d IMPORTANT Replace a cracked fouled or dirty spark plug Do not clean the electrodes because grit entering the cylinder can damage the engine 11 Set the gap on the plug to 0 030 inch 0 76 mm Figure 30 12 Install the spark plug and torque it to 20 22 ft lb 27 30 N m 13 Connect the spark plug wire to the spark plug Figure 29 14 Remove the oil fill cap 15 Install the shroud with the screws removed in...

Page 15: ...e new drive belt first around the engine pulley then the idler pulley and finally around the drive pulley while pressing down on the front of the idler arm Figure 32 5 Install the drive side cover with the screws removed in step 1 NOTE Ensure that the drive belt is properly adjusted and operating refer to Checking the Control Cable and Adjusting the Control Cable in the Maintenance section of this...

Page 16: ...k by starting the engine and letting it run until the fuel lines and carburetor are empty Never use engine or carburetor cleaner products in the fuel tank or permanent damage may occur Use fresh fuel next season NOTE Fuel stabilizer is an acceptable alternative in mini mizing the formation of fuel gum deposits during storage Add stabilizer to gasoline in fuel tank or storage container Always follo...

Page 17: ... Engine idles or 1 Choke is in FULL position 1 Move choke to OFF position runs roughly 2 Blockage in fuel line 2 Clean fuel line 3 Stale fuel 3 Empty fuel tank carburetor refill with fresh clean gasoline 4 Water in fuel 4 Empty fuel tank carburetor refill with fresh clean gasoline 5 Carburetor is in need of 5 Contact an authorized service center department adjustment or overhaul Excessive 1 Loose ...

Page 18: ...3 4 4 4 5 6 19 19 8 20 7 4 4 6 15 21 19 15 16 17 18 SSST Chute asm_5 NOTE All component dimensions given in U S inches 1 inch 25 4 mm IMPORTANT Use only Original Equipment Manufacturer O E M replacement parts Failure to do so could be hazardous damage your snow thrower and void your warranty ...

Page 19: ...CHETING PLASTIC W GRV 2 434876X431 2 PLATE CHUTE RETAINER 3 434875X431 1 PLATE CHUTE BASE 4 17411312 6 BOLT HEX WSH HD 13 16 X 3 4 5 434885X428 1 HANDLE CHUTE MS428 6 73970500 4 NUT LOCK HX W INS 5 16 18 UNC PL 7 434879 1 SPRING RATCHET ARM 8 81328 1 BOLT SHOULDER 1 4 20 UNC X 94 9 434878 1 ARM CHUTE RATCHET 10 132004 1 HEX NUT 1 4 20 NYLON LOCKING 11 435980X428 1 PLENUM 15 437318 5 CARRIAGE BOLT ...

Page 20: ...S inches 1 inch 25 4 mm IMPORTANT Use only Original Equipment Manufacturer O E M replacement parts Failure to do so could be hazardous damage your snow thrower and void your warranty 1 435366X431 1 BAIL HANDLE PAINT MS431 2 435368X431 1 HANDLE PNT UPPER SSST 3 434806 1 CONTROL CABLE 4 189713X428 2 KNOB HANDLE BLACK 5 191574 2 BOLT HANDLE BLACK PATCHED 6 145006 1 CLIP PUSH IN HINGED ...

Page 21: ...ower and void your warranty KEY PART NO NO QTY DESCRIPTION 1 72110407 12 BOLT CARRIAGE 2 5142H 1 PIN ROLL 3 16 X 1 1 4 3 199687 1 BOLT 1 4 20 1 50 4 434777X431 2 PLATE CENTER BLADE 5 132004 13 HEX NUT 1 4 20 NYLON LOCKING 6 19091016 8 WASHER 9 32 X 5 8 X 16 GA 7 435302 2 BLADE AUGER 8 434862X428 1 WELDMENT AUGER ASM 9 434010X431 2 SUPPORT BEARING SSST PNT 10 110485X 2 BEARING BALL MANDREL 11 17600...

Page 22: ... 15 16 16 16 2 10 8 9 10 11 12 13 9 7 14 5 17 10 9 SSST Shroud asm_8 NOTE All component dimensions given in U S inches 1 inch 25 4 mm IMPORTANT Use only Original Equipment Manufacturer O E M replacement parts Failure to do so could be hazardous damage your snow thrower and void your warranty ...

Page 23: ... DESCRIPTION 1 435905X428 1 COVER NON DRIVE SIDE MS428 2 435904X428 1 COVER DRIVE SIDE MS428 3 434883X421 1 TOP COVER 4 430220 1 CAP ASM FUEL 2 25 FR N CB E10 5 436235 1 BULB PRIMER 6 435407 1 KEY HOUSING 7 434867X428 1 TOP REAR COVER 8 434873X431 1 PLATE EXHAUST PNT 9 17411312 4 SCREW 10 17490412 12 SCREW HEXWSH THDROL 1 4 20X3 4 11 434880 1 TANK FUEL ASM 12 146848 2 TIE CABLE 24 5X 29 NYLON WHIT...

Page 24: ... 1 2 3 4 4 5 7 6 11 10 6 8 3 9 SSST Frame asm_3 12 12 NOTE All component dimensions given in U S inches 1 inch 25 4 mm IMPORTANT Use only Original Equipment Manufacturer O E M replacement parts Failure to do so could be hazardous damage your snow thrower and void your warranty ...

Page 25: ...ge your snow thrower and void your warranty KEY PART NO NO QTY DESCRIPTION 1 435501 1 LCT ENGINE 2 434009X431 1 FRAME WELDMENT 3 435530X428 2 WHEEL 7X1 5 DMD GS 3SPK MS428 4 435417 2 NUT PUSH AXLE 0 5IN 5 435578 2 SCREW 5 16 24 X 2 00 HHCS 6 150406 2 BOLT ENG 3 8 16 X 1 280 7 191730 3 NUT HEX FLANGE 1 4 20 CTR LOCK 8 72140405 3 BOLT RDHD SQNK 1 4 20 UNC X 5 8 9 435535 1 PLATE SCRAPER 10 434857 2 S...

Page 26: ...nd void your warranty KEY PART NO NO QTY DESCRIPTION 1 434860 1 SPACER ENGINE CRANK 2 434502 1 KEEPER ENGINE BELT 3 426490 1 PULLEY ENG TRACTION 3 4 4 851074 1 WASHER HARDEN 5 437261 1 BELT V TRACTION 6 430817 1 SCREW CAP SCHD 3 8 24 X 1 25 7 434859 1 SPRING IDLER PULLEY RETURN 8 434848X431 1 ARM IDLER PNT MS431 9 166043 1 PULLEY IDLER BACKSIDE 10 17060620 1 SCREW HXWH THDRL 1 4 20X1 1 4 11 199092...

Page 27: ...27 SERVICE NOTES ...

Page 28: ...r rental or commercial purposes is limited to 90 days from the date of origi nal purchase 5 This Warranty applies only to products which have been properly assembled adjusted operated and maintained in ac cordance with the instructions furnished This Warranty does not apply to any product which has been subjected to altera tion misuse abuse improper assembly or installation delivery damage or to n...

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