Yard-Man 31AE993I401 User Manual

OPERATOR’S MANUAL

33” Snow Thrower

Model 31AE993I401

IMPORTANT: READ SAFETY RULES AND INSTR UCTIONS CAREFULLY

Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-

covered, brush-covered or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting applicable local or state laws (if any). If a spark arrester is used, it should be maintained in effective working order by the operator. In the State of California the above is required by law (Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws apply on federal lands. A spark arrester for the muffler is available through your nearest engine authorized service dealer or contact the service department, P.O. Box 368022 Cleveland, Ohio 44136-9722.

MTD PRODUCTS INC. P.O. BOX 368022 CLEVELAND, OHIO 44136-9722

PRINTED IN U.S.A.

FORM NO.

770-10278B.fm (5/2001)

TABLE OF CONTENTS

Content Page

Important Safe Operation Practices...................................................................3

Assembling Your Snow Thrower .......................................................................5

Knowing Your Snow Thrower ............................................................................7

Operating Your Snow Thrower ..........................................................................9

Making Adjustments ..........................................................................................10

Maintaining Your Snow Thrower........................................................................12

Servicing Your Snow Thrower ...........................................................................13

Off-Season Storage...........................................................................................17

Trouble Shooting Guide.....................................................................................18

Parts List............................................................................................................19

FINDING MODEL NUMBER

This Operator’s Manual is an important part of your new snow thrower. It will help you assemble, prepare and maintain the unit for best performance. Please read and understand what it says.

Before you star t to prepa re yo ur sno w thr ower for its first use, please locate the model plate and copy the information from it in this Operator’s Manual. The information on the model plate is very important if you need help from your dealer or the Customer Support Department.

You can locate the model number by looking at the lower frame cover on the rear of your snow thrower. A sample model plate is explained below. For future reference, please copy the model number and the serial number of the equipment in the space below.

(Model Number)

CLEVELAND, OHIO 44136

(Serial Number)

MTD PRODUCTS INC

Copy the model number here:

Copy the serial number here:

CALLING CUSTOMER SUPPORT

If you have difficulty assembling this product or have any questions regarding the controls, operation or maintenance of this unit, please call the Customer Support Department.

Call 1- (330) 220-4MTD (4683) or 1- (800)-800-7310 to reach a Customer Support representative. Please have your unit’s model number and serial number ready when you call. See previous section to locate this information. You will be asked to enter the serial number in order to process your call.

For more details about your unit, visit our website at www.yardman.com

SECTION 1: IMPORTANT SAFE OPERATION PRACTICES

This symbol points out important safety instructions which, if not followed, could endanger the personal safety and/or property of yourself and others. Read and follow all instructions in this manual before attempting to operate this machine. Failure to comply with these instructions may result in personal injury. When you see this symbol—heed its warning.

WARNING: Engine Exhaust, some of its constituents, and certain vehicle components contain or emit

chemicals known to State of California to cause cancer and birth defects or other reproductive harm.

DANGER: This machine was built to be operated according to the rules for safe operation in this

manual. As with any type of power equipment, carelessness or error on the part of the operator can result in serious injury. This machine is capable of amputating hands and feet and throwing objects. Failure to observe the following safety instructions could result in serious injury or death.

Training

1. Read, understand, a nd follow all in struction s on the machine and in the manual(s ) before a ttempting to assemble and o perate. Keep this ma nual in a safe pl ace for future and regular re ference a nd for orde ring replacement parts.

2. Be familiar with all controls and their prope r operation. Know how to stop the mach ine and d isengage them quickly.

3. Never allow childre n under 14 y ears old to operate this machine. Children 14 years old and over should rea d and understand the op eration in struction s and sa fety rules i n this manual and should be trained and sup ervised b y a parent.

4. Never allow adults to operate this machine without proper instruction.

5. Thrown objects can cause seriou s personal injury . Plan your snow throwin g pattern to avoid di scharge of mat erial toward roads, bystanders and the like.

6. Keep bystanders, hel pers, pets and chi ldren at l east 75 feet from the machin e while it is in operatio n. Stop machine if anyo ne enters the area.

7. Exercise caution to avoid s lipping o r falli ng, espe cially when operating in reverse.

Preparation

1. Thoroughly inspect the area wh ere the eq uipment i s to be used. Remove all door mat s, newspa pers, sle ds, boards, wires and o ther foreig n object s which c ould be tripped over or throw n by the auger/imp eller.

2. Always wear safet y glasses or eye s hields d uring operation and while performing an adjustment or repair to protect your eyes. T hrown ob jects whi ch ricochet can cause serious inj ury to the eyes.

3. Do not operate wit hout wearing adequate winter outer garments. Do not wear jewelry, long scarves or other loose clothing which cou ld becom e entang led in m oving parts. Wear footwear w hich wi ll improve footing on slippery surfaces.

4. Use a grounded three wire ex tension cord and receptac le for all units with electric start engi nes.

5. Adjust collector housing height to clear gravel or crushed rock surfaces.

6. Disengage all cl utch levers before st arting the engin e.

7. Never attempt to m ake any adjustme nts while engine i s running, except where spec ifically recomm ended in the operator’s manual.

8. Let engine and m achine adju st to outd oor tem perature before starting to clear snow.

9. To avoid personal injury or pro perty damage use extre me care in handling gasolin e. Gasol ine is e xtremely flammable and the v apors are explosiv e. Serious personal injury c an occur w hen gas oline is spilled o n yourself or your c lothes which c an ignit e. Wash y our skin and change clot hes immedi ately.

a. Use only an approved gasoline container. b. Extinguish all cigarettes, cig ars, pipes and other

sources of ignition. c. Never fuel machine indoo rs. d. Never remove gas cap or add fue l whil e the

engine is hot or running. e. Allow engine to cool at leas t two minu tes before

refueling. f. Never over fill fuel tank. Fil l tank to no more tha n

½ inch below bottom of fill er neck to provide space

for fuel expansi on. g. Replace gasoli ne cap an d tighten secu rely. h. If gasoline is sp illed, wip e it off th e engine and

equipment. Move machine to another area . Wait 5

minutes before start ing the e ngine. i. Never store the machine or fuel containe r inside

where there is an o pen flam e, spark or pilot l ight

(e.g. furnace, water heater, space heate r, clothes

dryer etc.). j. Allow machine to cool 5 minute s before storin g.

Operation

1. Do not put hands o r feet near rotating p arts, in the a uger/ impeller housing o r disc harge chu te. Cont act wit h the rotating parts can am putate ha nds and feet.

2. The auger/impelle r clutch lev er is a safety de vice. Nev er bypass its operati on. Doing so, makes the ma chine unsafe and may cause p ersonal i njury.

3. The clutch leve rs must o perate easily in both d irections and automatical ly return to the disengaged pos ition when released.

4. Never operate with a miss ing or da maged di scharge chute. Keep all safe ty devic es in pl ace and working.

5. Never run an engine indoors or in a poorly vent ilated area. Engine exhaust contains carbon monoxide , an odorless and dea dly gas .

6. Do not operate mac hine while under the influenc e of alcohol or drugs.

7. Muffler and engine be come hot and c an cause a burn. D o not touch.

8. Exercise extreme ca ution when operating on or cro ssing gravel surfaces. Stay alert for hidden hazards or traffic.

9. Exercise caution w hen changi ng directi on and w hile operating on slop es.

10. Plan your snow t hrowing pat tern to av oid disc harge towards windows, wa lls, cars e tc. To avoid prope rty damage or personal injury caus ed by a ricochet.

11. Never direct disc harge at c hildren, b ystander s and pet s or allow anyone in front of t he machi ne.

12. Do not overload machine capa city by attemptin g to clear snow at too fast of a rate.

13. Never operate this machin e without good visib ility or light. Always be sure of your footi ng and k eep a firm hold on the handles. Walk, n ever run.

14. Disengage power to t he aug er/impeller w hen transporting or not in use.

15. Never operate mach ine at hi gh transp ort speeds on slippery surfaces. Look down and b ehind an d use ca re when in reverse.

16. If the machine shoul d start to vibrate abn ormally, stop the engine, disconnect the spark plug an d grou nd it agai nst the engine. Inspect thoroughly for dam age. Repair any damage before starting and ope rating.

17. Disengage all cl utch lev ers and st op engin e before y ou leave the operating position (be hind the handles). Wai t until the auger/im peller come s to a complete stop befo re unclogging the d ischarge chute, m aking an y adjustments, or inspecti ons.

18. Never put your hand in the d ischarge or colle ctor openings. Always use a cl earing to ol to unc log the discharge opening.

19. Use only attach ments a nd acce ssories approved by the manufacturer (e.g. wheel weigh ts, tire c hains, cabs etc.) .

20. If situations occur which are not covered in this manua l, use care and good judgment. Cont act your dealer or telephone 1-800-800-73 10 for assistance and the name of your nearest s ervicing dealer.

Maintenance And Storage

1. Never tamper with safety devices. Check their proper operation regularly.

2. Disengage all cl utch lev ers and stop engi ne. Wait u ntil the auger/impelle r come to a complet e stop. D isconn ect the spark plug wi re and grou nd again st the en gine to prevent unintended starting before cl eaning, repairi ng, or inspecting.

3. Check bolts, and sc rews for pro per tig htness at frequent intervals to keep t he ma chine in safe worki ng condi tion. Also, visually inspe ct mach ine for an y damag e.

4. Do not change the engi ne governor settin g or over-speed the engine. The g overnor c ontrols the m aximum s afe operating speed o f the eng ine.

5. Snow thrower shave plates an d skid shoes are subj ect to wear and damage. F or your s afety protecti on, freque ntly check all compon ents and replace with origin al equipment manufac turer’s (O.E.M.) pa rts only. Use of parts which do not m eet the ori ginal eq uipment specifications may lea d to imp roper perfor mance an d compromise safety.

6. Check clutch co ntrols period ically to verify they engage and disengage prope rly and adjust, if ne cessary. Refer to the adjustment s ection i n this op erator’s manual for instructions.

7. Maintain or replace safety and instruction labels, as necessary.

8. Observe proper disposal l aws and regulations for ga s, oil, etc. to protect the environmen t.

9. Prior to storing, run machine a few minutes to clear snow from machine an d prevent freeze up of auger/i mpeller.

10. Never store the machine or fuel c ontainer i nside whe re there is an open flame, spark or pilot light such as a wate r heater, furnace ,cloth es dryer etc .

11. Always refer to the operator’s ma nual for p roper instructions on off-season storage.

WARNING: Restrict the use of this

power machine to persons who read, understand and follow the warnings and instructions in this manual and on the machine.

SECTION 2: ASSEMBLING YOUR SNOW THROWER

NOTE: Any reference in this manual to the left or right

side of the snow thrower is observed from the operator’s position.

Upper Handle

Unpacking

• Remove staples from the top, sides, and ends of the shipping crate.

• Set panels aside to avoid tire punctures or personal injury.

• Remove and discard plastic bag that covers unit.

• Roll the unit out of the crate.

• Check the crat e thorough ly for loos e parts bef ore

discarding.

Loose Parts

• The augers are secured to the auger shaft with two shear bolts and hex lock nuts. If you hit a foreign object or ice jam, the snow thrower is designed so that the bolts may shear. Two replacement shear bolts and nuts are provided for your convenience. Store in a safe place until needed. See Figure 1.

Shear Bolts

Figure 1

Hex Lock Nuts

Steering Cable

Tighten these

Wing Nuts

Lower Handle

Cable Tie

Upper Shift Rod

Clutch Rod

Connector

Carriage Bolt

Cupped Wa she r

Wing Nut

Upper Shift Rod

Figure 2

• Raise the upper handle assembly until it locks over the lower handle. See Figure 3.

• Look at the lower rear of the snow thrower frame to be sure all the cables are aligned with the cable roller guides.

IMPORT ANT :

standard hex bolts. Any damage to the auger gearbox or other components from standard hex bolts will not be covered by your snow thrower’s warranty.

NEVER replace the auger shear bolts with

Assembling Handle

WARNING: Disconnect the spark plug

wire and ground it against the engine to prevent unintended starting.

IMPORT ANT :

later on in this section, before operating your snow thrower. Failure to follow these instructions may cause damage to the snow thrower.

• Remove the lower plastic wing nut, cupped washer and carriage bolt from each side of the lower handle. See Figure 2.

Make any final adjustments, as instructed

Handle Panel

Wing Nuts

Upper Handle

Lower Handle

Figure 3

• Secure the upper handle and lower handle with the two plastic wing nuts, cupped washers and carriage bolts previously removed. Attach these hardware on the lower hole in the handles.

• Tighten the two wing nu ts alre ady in plac e on the upper holes and secure the handles firmly.Slide the shift rod connector down over the end of the lower

shift rod. Tap the connector until it locks over the lower shift rod. See Figure 2.

NOTE: If the connector is not properly assembled, the

shift rod will pivot and y ou will not be able to change speeds or change directions.

• Remove the hairpin clip from the upper chute crank and slide the upper chute crank through the upper chute crank bracket and into the lower chute crank. Align the two holes on both chute cranks and insert the hairpin clip removed earlier, through these holes. See Figure 4.

Upper Chute Crank

Upper Chute

Crank Bracket

Hairpin Clip

Lower Chute C rank

Figure 4

• If not already attached, slip the cables that run from the handle panel to the discharge chute into the cable guide located on top of the engine as shown in Figure 5.

Discharge Chute

Cable Guide

Figure 5

• Unwrap the headlight wire which is attached to the headlight, beneath the handle panel. Wind the headlight wire around the lower right handle until excess slack is removed. See Figure 6.

• Plug the wire from the headlight into the alternator lead coming from the right side of the engine underneath the fuel tank.

Alternator Lead

Lamp Wire

(Wheels left out for clarity)

Figure 6

Final Adjustments

NOTE: It may be helpful t o read Section 3, Knowing Your Snow Thrower, to help identify certain areas of the snow thrower before performing adjustments.

Traction Control and Shift Lever

To check the adjustment of the traction control and shift lever, proceed as follows:

• Move the shift lever into sixth (6) position.

• With the traction control released, push the snow

thrower forward, then pull it back. The machine should move freely.

• Engage the traction control and attempt to move the machine both forward and back, resistance should be felt.

• Move the shift lever in to the f ast revers e (R2) position and repeat the previous two steps.

If you experienced resistance rolling the unit, either when repositioning the shift lever from 6 to R2 or when attempting to move the machine with the traction control released, adjust the traction control immediately. To adjust, proceed as follows:

• Loosen the jam nut on the traction control cable and UNTHREAD the cable one full turn.

• Recheck adjustment.

• Retighten the jam nut to secure the cable when

correct adjustment is reached.

NOTE: For more details, refer to Traction Control Adjustment

Auger Control

Check the adjustment of the auger control as follows:

• Push down on the auger c ontro l unt il th e smal l rubber bumper contacts the upper handle. There should be a small amount of slack in the auger control cable.

• Release the auger cont rol. The ca ble shoul d be straight. Make certain you can depress the auger control against the left handle completely.

If adjustment is necessary, proceed as follows:

• Loosen the jam nut and thread the cable in (for less slack) or out (for more slack) as necessary. See Figure 7.

• Recheck adjustment; readjust as necessary and tighten the jam nut.

“Z” End

Jam Nut

NOTE: Make certain the en tire bottom surface of skid

shoe is against the ground to avoid uneven wear on the skid shoes.

High

Shave Plate

Low

Auger Control

Cable

Figure 7

Carriage Bolts

Skid

Shoes

Skid Shoes

The space between the shave plate and the ground can be adjusted by repositioning the skid shoes. For close snow removal, as when using on a smooth concrete or asphalt driveway, place the skid shoes in the low position. Use the middle or high position when the area to be cleared is uneven. When operating on gravel, always put skid shoes in the high position. See Figure 8.

Adjust skid shoes as follows:

• Loosen, but do not remove, the three hex nuts which fasten the skid shoe to the auger housing.

• Raise or lower the skid shoe to desired position.

• Retighten the hex nuts loosened earlier.

• Repeat on the other side of the snow thrower.

Tire Pressure (Pneumatic Tires)

The tires are overinflated for shipping purposes.

• Check tire pressure. Maintain pressure between 10 and 14 psi.

NOTE: If the tire pressure is not equal in both tires, the unit may pull to one side or the other.

WARNING: Maximum tire pressure

under any circumstance is 30 psi. Equal tire pressure should be maintained at all times. Excessive pressure (over 30 psi) when seating beads may cause tire/rim assembly to burst with force sufficient to cause serious injury.

SECTION 3: KNOWING YOUR SNOW THROWER

simultaneously with the traction control, the operator

WARNING: Read, understand, and

follow all instructions and warnings on the machine and in this manual before operating.

Traction Control / Auger Cont rol Lock

The traction control is located on the right handle. Squeeze the traction control to engage the wheel drive. Release to stop. See Figure 9.

This same lever also locks the auger control so you can operate the chute crank without interrupting the snow throwing process. If the auger control is engaged

can release the auger control (on the left handle) and the augers will remain engaged. Release the traction control to stop the augers and wheel drive (the auger control must also be released).

IMPORT ANT :

changing speeds.

Auger Control

The auger control is located on the left handle. Squeeze the auger control to engage the augers. Release to stop the snow throwing action. The traction control must also be released in order to stop the auger.

Hex Nuts

Figure 8

Always release the traction control before

Shift Lever

The shift lever is located in the center of the handle panel and is used to determine ground speed and direction of travel. It can be moved into any of eight positions. See Figure 9.

IMPORT ANT :

changing speeds.

Always release traction the control before

Forward

Your snow thrower has six forward (F) speeds. Position number one (1) is the slowest and position number six (6) is the fastest.

Reverse

Your snow thrower has two reverse (R) s peeds. R1 is the slower, while R2 is the faster of the two.

Chute Crank

The chute crank is located on the left hand side of the snow thrower. To change the direction in which snow is thrown, turn the chute crank as follows:

• Turn clockwise to discharge to the left;

• Turn counterclockwise to discharge to the right.

• Operate the snow thrower in open areas until becoming familiar with these controls.

Chute Tilt Contro l

The distance snow is thrown can be changed by adjusting the angle of the chute assembly. Move the chute tilt control forward to decrease the distance, toward the rear to increase. See Figure 9.

Discharge Chut e

The angle of the discharge chute controls the distance that the snow is thrown. Tilt the discharge chute up for greater distance; tilt down for less distance.

Skid Shoe

The position of the skid shoe is determined by the condition of the ground from where snow has to be removed.

Headlight

The headlight is on whenever the engine is running.

Wheel Steering Controls

The left and right wheel steering controls are located on the underside of the handles and are used to assist in steering the snow thrower.

• Squeeze the right wheel steering control when turning right; squeeze the left control when turning left.

T raction Contro l / Auger Control Lock

Headlight

Fuel Tank

Discharge Chute

Throttle Control

The throttle control is located on the engine. It regulates the speed of the engine. See Figure 9.

Safety Ignition Key

The safety ignition key must be fully inserted in the switch before the unit will start. Remove key when snow thrower is not in use. Do not attempt to turn the key. See Figure 9.

Shift Lever

Auger Drive Control

Chute Tilt Control

Chute Crank

Wheel St eer in g Control

Primer

Choke

Electric Starter Button

Switch Box

Auger

Skid Shoe

Figure 9

Safety Ignition Key

Throttle Control

Recoil Starter Handle

SECTION 4: OPERATING YOUR SNOW THROWER

Before Starting

WARNING: Read, understand, and

follow all instructions and warnings on the machine and in this manual before operating.

Gas And Oil Fill-up

Service the engine with gasoline and oil as instructed in the separate engine manual packed with your snow thrower. Read instructions carefully.

WARNING: Use extreme care when

handling gasoline. Gasoline is extremely flammable and the vapors are explosive. Never fuel machine indoors or while the engine is hot or running. Extinguish cigarettes, cigars, pip es an o th er s our ces of ignition.

• A plastic cap is provided inside the fuel fill opening on the fuel tank. Remove and discard this cap before filling up the tank. Use the separate fuel tank cap to close after fill-up.

To Start Engine

NOTE: If unit shows any sign of motion (drive or

augers) with the clutch g rips disengaged, shut engine off immediately. Readjust as instructed in the Final Adjustments in the Assembly Section.

• Attach spark plug wire to spark plug. Make certain the metal loop on end of the spark plug wire (inside the boot) is fastened securely over the metal tip on the spark plug.

• Make certain the auger and drive clutch levers are in the disengaged (released) position.

• Move throttle control up to FAST position. Insert ignition key into slot. See Figure 9. Be certain it snaps into place. Do not turn key.

NOTE: Engine will not start unless ignition key is

inserted i nto ig nitio n slot in carb uretor cover .

Electric Starter

• Determine that your house wiring is a three-wire grounded system. Ask a licensed electrician if you are not certain.

WARNING: The electric starter is

equipped with a grounded three-wire power cord and plug and is designed to operate on 120 volt AC household current. It must be used with a properly grounded three-prong receptacle at all times to avoid the possibility of electric shock. Follow all instructions carefully prior to operating the electric starter.

• If your house wiring system is not a three-wire grounded system, do not use this electric starter under any condi tions.

• If your home electrical system is grounded, but a three-hole receptacle is not available, one should be installed by a licensed electrician before using the electr ic start er.

• If you have a grounded three-prong receptacle, proceed as follows:

• Rotate choke knob to OFF position and do not prime engine.

• Connect power cord to switch box on engine. Plug the other end of power cord into a three-hole, grounded 120 volt AC receptacle.

• Push starter button on top of the engine to crank engine. As you crank the engine, move choke knob to FULL choke position.

• When engine starts, release starter button, and move choke gradually to OFF. If engine falters, move choke immediately to FULL and then gradually to OFF.

• When disconnecting the power cord, always unplug from the three-prong receptacle first and then from the snow thrower.

Recoil Starter

• Rotate choke knob to FULL choke position (cold engine start). If engine is warm, place choke in OFF position instead of FULL.

• Push primer button two or three times. If engine is warm, pus h prim er but ton on ce on ly.

NOTE: Always cover v ent hol e in pr i mer bu tton when

pushing. Additional priming may be n ecessary for fir st start if temp eratur e is below 15 °F.

• Grasp starter handle and pull rope out slowly, until it pulls slightly harder. Let rope rewind slowly.

• Pull starter handle rapidly. Do not allow handle to snap back. Allow it to rewind slowly while keeping a firm hold on the starter handle.

• Repeat the previous steps until engine starts.

To Stop Engine

• Run engine for a few minutes before stopping to help dry off any moisture on the engine.

• To help prevent possible freeze-up of starter, proceed as follows.

Electric Starter:

• Connect power cord to switch box on engine, then to 120 volt AC receptacle. With the engine running, push starter button and spin the starter for several seconds. The unusual sound made by spinning the starter will not harm engine or starter. Disconnect the power cord from receptacle first, and then from switch box.

Recoil Starter

• With engine running, pull starter rope with a rapid, continuous full arm stroke three or four times. Pulling the starter rope will produce a loud clattering sound, which is not harmful to the engine or starter.

• Move throttle control to “stop” or “off” position.

• Remove ignition key. Do not turn key. Disconnect

the spark plug wire from the spark plug to prevent accidental starting while equipment is unattended.

NOTE: Keep it in a safe place. Engine will not start

without ignition key.

Wipe all snow and moisture from the carburetor cover in the area of the control levers. Also, move control levers back and forth several times.

To Engage Wheel Drive

• With the engine running near top speed, move the shift lever into one of the six FORWARD positions or two REVERSE positions. Select a speed appropriate for the snow conditions that exist.

NOTE: Use slower speeds in higher snow, and until

you are familiar with the operation of the snow thrower.

• Squeeze the traction control against the right handle and the snow thrower will move. Release it and the drive motion will stop.

IMPORT ANT :

releasing the traction control. Doing so will cause premature wear to the drive system’s friction wheel.

NEVER move the shift lever without first

To Engage Augers

To engage the augers and start the snow throwing action, proceed as follows:

• Squeeze the auger control against the left handle.

To disengage power to the augers:

• Release both the auger control and the traction control, if engaged.

The auger control can be locked so you can turn the electric chute directional control without interrupting the snow thro wing pr oces s.

Operating Tips

NOTE: Allow the engine to warm up for a few minutes.

The engine will not develop full power until it reach es operating temperature.

WARNING: The temperature of the muf-

fler and the surrounding areas may

exceed 150

• For the most efficient snow removal, remove snow immediately after it falls.

• Discharge the snow downwind whenever possible.

• Slightly overlap each previous path.

• Set the skid shoes 1/4" below the shave plate for

normal usage. The skid shoes may be adjusted upward (to lo wer the sh ave plat e) for har d-packe d snow. Adjust downward (to raise the shave plate) when using on gravel or crushed rock.

F. Avoid these areas.

SECTION 5: MAKING ADJUSTMENTS

WARNING: NEVER attempt to clean

chute or make any adjustments while engine is running.

Traction Control

Refer to the information found under Final Adjustment in the Assembly Section to adjust the traction control. If you are uncertain that you have reached the correct adjustment, proceed as follows:

WARNING: Drain the gasoline out of

your snow thrower’s engine, and place a piece of plastic film under the gas cap to avoid spillage before beginning the job.

• Tip the snow thrower forward, allowing it to rest on the auger housing.

• Remove the frame cover underneath the snow thrower by removing six self-tapping screws.

• With the traction control released, make sure there is clearance between the friction wheel and the drive plate in all positions of the shift lever.

• With the traction control lever engaged, make sure the friction wheel solidly contacts the drive plate. See Figure 10.

If adjustment is necessary, adjust traction control as instructed below:

• Loosen the jam nut on the traction drive cable and thread the cable in or out as necessary. Refer to Figure 7.

Shift Arm

Auger Actuator Bracket

Trigger Cables

Drive Actuator Bracket

necessary until the ferrule lines up with the upper hole in the shift lever. See Figure 11.

• Insert ferrule from the left side of the snow thrower into the upper hole.

• Reinstall the hairpin clip and the washer.

Hex Nut And Cupped Washer

Figure 10

• Retighten the jam nut to secure the cable when correct adjustment is reached.

• Reassemble the frame cover.

NOTE: If you placed plas tic film unde r the gas cap, be certain to remove it before operating the snow thrower.

Hex Gear Shaft

Rubber Friction

Wheel

Drive Plate

Drive Wheels

The wheels may be adjusted for two different methods of operation. The adjustment is made by placing the click pins in one of two different holes on the right side of the un it.

One Wheel Driving: Insert the click pin only through the outsi de ho le of the a xle ( NOT th e rim ) on t he ri ght side of the snow thrower. This position gives power drive to the left wheel only, making the unit easier to maneuver.

Both Wheels Driving: Insert the click pin through the hole in the hub of the rim and the INSIDE hole on the snow thrower’s right axle. This position is good for heavy snow as there is power drive in both wheels.

IMPORT ANT :

click pin inserted through both the RIM and the OUTSIDE HOLE in the axle. Doing so can result in serious damage to the drive system.

NEVER operate the snow thrower with the

Shift Rod

To adjust the shift rod, proceed as follows:

• Remove the hairpin clip and flat washer from the shift handle under the handle panel.

• Place shift le ver in sixth (6 ) positio n or fastes t forward speed.

• Push shift arm as sembl y dow n as f ar as i t wil l go.

• Rotate the ferrule up or down on the shift rod as

IMPORT ANT :

adjustment of the shift rod as instructed under Final Adjustments in the Assembly Section, before operating the snow thrower.

Flat Washer

Shift Arm

Make certain to check for correct

Shift Lever

Hairpin Clip

Ferrule

Upper Shift Rod

Clutch Rod

Connector

Lower Shift Rod

Figure 11

Skid Shoe Adjustment

The space between the shave plate and the ground can be adjusted by raising or lowering the skid shoes. Refer to Skid Shoe Adjustment in the Assembly Section.

Auger Control Adjustment

Refer to the information found under Final Adjustments in the Assembly Section to adjust the auger control.

Chute Assembly

The distance snow is thrown can be adjusted by adjusting the angle of the chute assembly. Refer to the “Know Your Sn ow Throw er” secti on.

The remote chute control cables have been preadjusted at the factory. Move the remote chute lever on the control panel back and forward to adjust angle of the chute assembly.

SECTION 6: MAINTAINING YOUR SNOW THROWER

WARNING: Before lubricating, repair-

ing, or inspecting, disengage all clutch levers and stop engine. Wait until all moving parts have come to a complete stop. Disconnect the spark plug wire and ground it against the engine to prevent unintended starting.

General Recommendations

• Always observe safety rules when performing any maintenance.

• The warranty on this snow thrower does not cover items that have been subjected to operator abuse or negligence. To receive full value from the warranty, operator must maintain the snow thrower as instructed in this manual.

• Some adjustments will have to be made periodically to maintain your unit properly.

• All adjustments in the service and adjustments sections of this man ual shoul d be checke d at least once each season.

• Follow the maintenance schedule given below.

• Periodically check all fasteners and hardware to make sure t hese are t ight.

Vent Plug

Shear Bolts

Bearings

Figure 12

Discharge Chute

The base of the discharge chute and the spirals on the chute crank should be lubricated at least every 25 hours of use. Apply the lubricant under the base of the chute and where the spirals contact the discharge chute. See Figure 13.

Carburetor

WARNING: If any adjustments are made

to the engine while the engine is running (e.g. carburetor), keep clear of all moving parts. Be careful of heated surfaces and mufflers.

Minor carburetor adjustments may be required to compensate for differences in fuel temperature, altitude and load. Refer to the engine manual for instructions.

Lubrication

Gear Shaft

Lubricate the gear shaft with 6-in-1 grease (part number 737-0170) at least once a season, or after every 25 hours of operation. Refer to Figure 10.

IMPORT ANT :

friction wheel and drive plate.

Engine

Refer to the separate engine m anual p acked with yo ur unit for all engine lubrication instructions.

Auger Shaft

• At least onc e a season , remove t he shear bo lts from the auger shaft and spray lubricant inside the shaft. See Figure 12.

Keep all grease and oil off the rubber

Lube Under Chute Base

Figure 13

Chute Crank Spirals

Drive and Shifting Mechanism

At least once a season or after every 25 hours of operation, remove rear cover. Lubricate any chains, sprockets, gears, bearings, shafts, and the shifting mechanism at least once a season. Use engine oil or a spray lubricant. Avoid getting oil on rubber friction wheel and aluminum drive plate. Refer to Figure 10.

Gear Case

The gear case is lubricated with grease at the factory and it does not require checking. If disassembled for any reason, lubricate with 2 ounces of Shell Alvania grease EPR00, part number 737-0168. Before reassembling, remove old sealant and apply new sealant. See Figure 12.

IMPORT ANT :

damage to the seals could result. Be sure the vent plug is free of grease in order to relieve pressure.

Do not overfill the gear case, since

Auger Bearings and Shaft

Every season lubricate the auger bearings and the bearings on the side of the frame with light oil. See to Figure 12.

Use oil or spray lubricant into the bearings at the wheels at least once a season. Remove the wheels, one side at a time, and clean and coat axles with multipurpose aut omotiv e grease.

Lubricate the auger shaft at least once a season. To do this:

• Remove the shear bolts on the auger shaft.

• Oil or spray lubricant inside shaft.

• Carefully spin the auger around by hand to disperse the lubricant.

• Reinstall the shear bolts.

Check Friction Wheel Rubber

Follow the instructions below to check the condition of the friction wheel rubber every 25 hours of operation.

• Remove the six self-tapping screws from the frame cover underneath the snow thrower.

• Visually inspect the friction wheel rubber for excessive wear, cracks, or loose fit on the friction wheel drive hub.

• Also engage the traction control and check if the friction wheel is making contact with the friction plate.

• If it does not make contact, adjust the traction drive cable following instructions and recheck the friction wheel.

• Replace friction wheel rubber if necessary. Refer to instructions in Service Section.

Check V-Belts

Follow the instru ction s bel ow to c heck t he cond itio n of the drive belts every 50 hours of operation.

• Remove the plastic belt cover on the front of the engine by removing the three self-tapping screws.

• Visually inspect for frayed, cracked, or excessively worn out belts.

• Replace belts as necessary as outlined in Service Section.

Traction Cont rol / Auger Co ntrol Lock

The cams on the ends of the control rods which interlock the traction drive and auger drive clutches must be lubricated at least once a season or every 25 hours of operation using a multi-purpose automotive grease. The cams can be accessed beneath the handle panel. See Figure 14.

Handle Panel

Control Rods

Lube Cams Here

Figure 14

SECTION 7: SERVICING YOUR SNOW THROWER

WARNING: Before servicing, r epairing,

or inspecting, disengage all clutch levers and stop engine. Wait until all moving parts have come to a complete stop. Disconnect spark plug wire and ground it against the engine to prevent unintended starting.

Augers

The augers are secured to the spiral shaft with two shear bolts and hex lock nuts. If you hit a foreign object or ice jam, the snow thrower is designed so that the bolts may shear. See Figure 15.

If the augers do not turn, check if the bolts have sheared. Two replacement shear bolts and hex lock

nuts have been provided with the snow thrower. Refer to Loose Part s in th e Assemb ly Secti on.

IMPORT ANT :

standard hex bolts. Any damage to the auger gearbox or other components, as a result of doing so, will NOT be covered by your snow thrower’s warranty.

Shave Plate and Skid Shoes

The shave plate and skid shoes on the bottom of the snow thrower are subject to wear. They should be checked periodically and replaced when necessary.

NOTE: The skid shoes on this mac hine have two wear edges. When one s ide wears out, they can be rot ated 180° to use the other edge.

NEVER replace the auger shear bolts with

Shear Bolts

Hairpin

Clip

Flat

Washe rs

Belt Cov er Bolts(3)

Belt Cover

Washer

Hex Nut

Carriage Bolt

Shave Plate

Figure 15

• Remove the six carr iage bolts (three per si de), belleville washers and hex nuts which attach slide shoes to the snow thrower on two sides. See Figure 8.

• Reassemble new slide shoes with the hardware removed earlier (cupped side of belleville washer against the slide shoes). Make certain the slide shoes are adjusted to be level.

• To remove the shave plate, remove slide shoe as well as the carriage bolts, belleville washers and hex nuts which attach shave plate to the snow thrower housing. For location of shave plate and carriage bolts, see Figure 15.

• Reassemble the new shave plate, making sure heads of carriage bolts are to the inside of the housing.

• Reinstall the skid shoes and tighten securely.

Replacing Belts

To remove and replace either the auger belt or the drive belt, follow the steps below and then proceed to the specific steps listed under respective sub-headings.

• Disconnect the chute crank assembly at the discharge chute end by removing the hairpin clip and the two flat washers.

• Remove the plastic belt cover, located near the engine, by removing the three self-tapping screws and flat washers that secure it. See Figure 16.

• Remove the larg e shoulder bolt and wa sher on the left hand side of the engine pulley. See Figure 16.

Upper Bolt

Shoulde r B olt

(do not remove)

Engine Pulley

Shoulde r Bo lt

(remove)

Figure 16

Auger Belt

• Remove the cott er pin and washer from t he ferrul e in order to disconnect the auger idler rod from the brake bracket assembly. See Figure 17.

• Slip the auger control belt (the front belt) off the engine pulley.

Engine Pulley

Auger Idler Rod

Auger Control Belt

Brake Bracket Assembly

Ferrule

Z Fitting

Cable Roller Guide

Figure 17

• Pull the brake bracket assembly towards the cable guide roller and unhook the auger cable “Z” fitting.

• Remove the upper bolts and lock washers which attach the auger housing assembly to the frame assembly using a 9/16” wrench. See Figure 16.

• Separate the auger housing from the frame assembly by tilting the housing forward and pulling up the handles.

• Using a 1/2” wrench, remove the hex screw and belleville washer from the center of the pulley on the auger housing. Lift the brake bracket assembly out of the pulley groove and remove the pulley. Be careful not to lose the key. See Figure 18.

Brake Bracket Assembly

Belt Keepers

Auger Belt

Idler Pu lley

Auger Pulley

Hex Screw

Bellevi lle Washer

Figure 18

• Remove and replace auger belt inside belt keepers.

• Reassemble pulley to auger housing with hex

screw and belleville washer (cupped side toward the pulley). Make sure key is in place on shaft and brake puck is seated in the pulley groove.

• Reassemble the belt cover and chute directional control.

Proper Adjustment: With the auger clutch lever in the disengaged position the top surface of the new belt should be even with the outside diameter of the pulley.

• To adjust, disconnect fer rule from brake brac ket assembly and thread ferr ule in (towards idler) to increase tension on belt, and out to decrease tension.

NOTE: The brake puck must always be f ir ml y se at e d i n the pulley groove when the auger control is in the disengaged position.

Drive Belt

• Unhook the extension spring from the belt cover plate. See Figure 19.

• Remove drive belt from the engine pulley and bottom drive pulley. Refer to Figure 19.

• Replace belt and reassemble in reverse order.

• Reassemble the two halv es of the un it hooki ng the

lower portion of the auger housing over the stationary shoulder bolts in the frame assembly.

Belt Cover

Extension Spring

Drive Belt

Figure 19

• Secure the two ha lves w ith t he tw o bol ts and lock washers removed earlie r. Refer to Figure 16.

• Attach the “Z” fitting of the cable into the brake bracket assembly. Refer to Figure 17.

• Slip the auger control belt over engine pulley.

• Insert ferrule on auger idler rod into bracket

assembly and secure with flat washer and cotter pin. Reassemble the large shoulder bolt and lock washer as shown in Figure 16.

• Reassemble belt cover and chute crank.

Changing Friction Wheel Rubber

The rubber on the friction wheel is subject to wear and should be checked after the first 25 hours of operation, and periodically thereafter. Replace the friction wheel rubber if any signs of wear or cracking are found.

• Drain the gasoline from the snow thrower, or place a piece of plas tic under the gas cap.

• Tip the snow thrower up and forward, so that it rests on the housing.

• Remove six screws from the frame cover underneath the snow thrower. Refer to Figure 10.

• Remove the left wheel from the axle.

• Using a 7/8” wrench, hold the hex shaft and remove

the hex bolts and cupped washer and bearing from left side of the frame. See Figure 20.

• Holding the friction wheel assembly, slide the hex shaft out of the left side of the unit. The spacer on the right side of the hex shaft will fall and the sprocket should remain hanging lose in the chain.

• Lift the friction wheel assembly out between the axle shaft and the drive shaft assemblies.

• Remove the six screws from both sides of the friction wheel assembly and remove friction wheel rubber from between the friction wheel plate. See Figure 20.

Shift Arm Assem b l y

Shift Arm

Assembly

Friction Wheel

Friction W heel

Sprocket

Spacer

Sprocket

Spacer

• Insert the pin from the shift arm assembly into the friction wheel assembly and hold assembly in position. See Figure 20.

• Slide the hex shaft through the left side of the housing and through the friction wheel assembly.

• Insert the hex shaft through the sprocket and the spacer. Make certain that the chain engages both the large and the small sprocket.

NOTE: If the sprocket fe ll from the snow th rower while removing the hex shaft, place the sprocket on the hex shaft. Position the hex hub of the sprocket toward the friction wheel when s liding the sprocket on to the hex shaft. See Figure 21.

Friction Wheel Plates

Bearing

Screws

Friction Wheel

Rubber

Hub

Figure 20

• Reassemble the new friction wheel rubber to the friction wheel assembly, tightening the six screws in rotation and with equal force. It is important to assemble the rubber on the friction wheel symmetrically for proper functioning.

Shift Arm

Assembly

Hex Shaft

Hex Hub Of Sprocket

Friction Wheel

Sprocket

Spacer

Figure 21

• Secure with the bell washer and hex bolt removed earlier.

• Secure the frame cover with six self-tapping screws. Put the snow thrower down to its normal operating position.

NOTE: If you placed plas tic film unde r the gas ca p, be certain to remove it.

Engine

Refer to separate engine manual for all engine maintenance procedures.

SECTION 8: OFF-SEASON STORAGE

WARNING: Never store engine with fuel in

tank indoors or in poorly ventilated areas, where fuel fumes may reach a n open flame, spark or pilot light as on a furnace, water heater, clothes dryer or other gas appliance.

• If unit is to be stored over 30 days, prepare engine for storage as instructed in the engine manual.

• Remove all debris from the exterior of equipment.

• Follow lubrication recommendations on page 12.

• Always store the snow thrower in a clean, dry area.

NOTE: When storing any type of power equipment in an unventilated or metal sto rage shed, care shou ld be taken to rust proof the equipment. Using a ligh t oil or silicone, coat the equipment, especially any chains, springs, bearings and cables.

SECTION 9: TROUBLESHOOTING

Problem Cause Remedy

Engine fails to star t. 1. Fuel tank empty, o r stale fuel.

2. Blocked fuel lin e.

3. Choke not in ON p osition

4. Faulty spark plug.

5. Safety key not in i gnition sw itch on eng ine.

6. Spark plug wire disconnect ed.

7. Primer button not being used properly.

Engine runs erratic. 1. Unit running on CHOKE.

2. Blocked fuel lin e or stal e fuel.

3. Water or dirt in fue l system.

4. Carburetor out of adjustment.

Loss of power. 1. Spark plug wire loose.

2. Gas cap vent hole plugged.

3. Exhaust port plugged .

Engine overheats. 1. Carburetor not adjus ted proper ly. 1. Refer to the engine manual or have th e

Excessive vibration . 1. Loose parts or da maged au ger. 1. Stop engine imme diately and disc onnect

Unit fail s to propel itself.

Unit fail s to discharge snow.

1. Traction contr ol cable in need of adjust ment.

2. Drive belt loose or damage d.

1. Discharge chute clogg ed.

2. Foreign object lodged in auger.

3. Auger control cable in need of adjustm ent.

4. Auger belt loose or damaged.

5. Shear bolt(s) sheared.

NOTE: For repairs beyond the minor adjustments listed above, contact the local dealer.

1. Fill tank with fresh gasoline.

2. Clean the fuel line.

3. Move switch to ON position

4. Clean, adjust gap or replac e.

5. Insert the key fully into the switch.

6. Connect spark plug wire.

7. Refer to the engine manu al.

1. Move choke lever to OFF position.

2. Clean fuel line a nd fill ta nk with c lean, fres h gasoline.

3. Drain fuel tank an d carburetor. R efill wi th fresh fuel.

4. Refer to the engine manu al.

1. Connect and tighten spark plug wire.

2. Remove ice and snow from gas cap. Be certain vent hole is clear.

3. Refer to the engine manu al.

carburetor adjusted b y an aut horized engine service deale r.

spark plug wire. Tighten all bolts and nuts. If vibration continues, have unit serviced by an authorized se rvice de aler.

1. Adjust traction c ontrol cab le. Refer to Adjustments.

2. Replace drive belt.

1. Stop engine imme diately and disc onnect spark plug wir e. Clean discharge chute and inside of auger housing.

2. Stop engine imme diately and disc onnect spark plug wir e. Remo ve objec t from au ger.

3. Refer to Final Adjus tments i n Assembly Section.

4. Refer to Adjustments.

5. Replace shear bolt(s).

Model 31AE993I401

42 7

Model 31AE993I401

Ref.

No.

1. 05244A Bearing Housing

2. 618-0281A Bracket Assembly: Auger Break

3. 684-0090A Impeller Assembly : 16”

4. 710-0371 Hex Lock Bolt 5/1 6-18 x .8 75”

5. 710-0451 Carriage Bolt 5/16-1 8 x .750”

6. 710-0459A Hex Screw, Special 3/8-24 x 1.5 ”

7. 710-0528 Hex Screw 5/16-18 x 1.25”

8. 710-0604A Self-Tapp. Screw 5/16 -18 x .62 5”

9. 710-0891 Shear Bolt 5/16-18 x 1.75 ”

10. 711-0640 Stud

11. 711-0677 Ferrule

12. 712-011 6 Jam Nut 3/8-24

13. 712-042 9 Hex Lock Nut 5/16-18

14. 712-3010 Hex Nut 5/16-18

15. 714-010 4 Hairpin Clip

16. 714-0126 Key

17. 714-0135 Key

18. 715-011 8 Spiral Pin

19. 731-1696 Chute Adapter

20. 732-085 8 Extension Spri ng

21. 736-011 9 Lock Washer

22. 736-015 9 5/16 Washer

23. 736-016 9 Lock Washer

24. 736-017 4 Wave Washer

25. 736-024 2 Beleville Washer

26. 736-025 0 Flat Washe r

27. 736-027 1 Spring Washer

28. 736-300 8 Flat Washe r

Part No. Part Description

Ref.

No.

30. 738-0281 Shoulde r Screw

31. 741-0185 Self-Alig ning Beari ng

32. 741-0192 Flange Bearing w / Flats

33. 741-0475 Plastic Bushing

34. 741-0494 Flange Bushing

35. 747-0980 Idler Rod : Auger

36. 754-0222 V-Belt

37. 756-0178 Flat Id ler

38. 756-0243 Pulley

39. 784-0385A Idler Bra cket: Auger

40. 784-5076 Support Brac ket

41. 784-5123 Chute Crank Bracket

42. 784-5710 Support Plate

43. 784-5711 Chute Bracket

44. 618-0436 Gear Assembly

45. 705-5210A Spiral Assembly RH

46. 705-5211A Spiral Assembly LH

47. 684-0093A Auger Housing Assembly

48. 784-5697 Slide Shoe

49. 737-3000 Lube Fitting

50. 738-0491 Spiral Axle

51. 736-0105 Bell Washer

52. 784-0315 Bearing Housing

53. 784-5714 Shave Plate

54. 710-0389 Carriage Screw

55. 710-3168 Carriage Bolt

56. 712-0798 Hex Nut 3/8-16

Part No. Part Description

NOTE: For painted parts, please ref er to

the list of color codes below. Please add the applicable color code, wherever needed, to the part number to order a replacement part. For instance, if a part numbered 700-sextets is painted YardMan Green, the part number to order would be 700-sextets-0665.

Yard-Man Green: 0665

Yard-Man Yellow: 0674

Powder Black: 0637

Model 31AE993I401

36 45

53 69

57 20

29 13

Model 31AE993I401

Ref.

No.

1. 05523 Support Bracket: Pivot

2. 618-0278 Bush Assembly

3. 618-0279 Dogg Assembly LH

4. 618-0280 Dogg Assembly RH

5. 618-0282B Shift Assembly

6. 618-0296 Wheel Bearing Assembly

7. 684-0115 Support Bracket Assembly

8. 684-0116 Shift Arm Assembly

9. 684-0117 Shift Rod Assembly

10. 684-0118 Auger Actuator Bracket Assy.

11. 684-0119 Drive Actuator Br acket Assy .

12. 684-0120 Frame Assembly

13. 684-0122 Sprocket Assemb ly

14. 710-0195 Hex Screw1/4-28 x .625”

15. 710-0538 Hex Screw5/16-18 x .625”

16. 710-0599 TT Screw 1/4-20 x .5”

17. 710-0788 TT Screw 1/4-20 x 1”

18. 710-1652 TT Screw1/4-20 x .625”

19. 710-3001 Hex Screw 3/8-16 x .880”

20. 710-3008 Hex Screw 5/16-18 x .7 5”

21. 710-3103 Hex Screw 5/16-18 x 2”

22. 710-3180 Hex Screw 5/16-18 x 1.75”

23. 711-1191 Hex Shaft: Drive

24. 711-1193 Actuator Shaft

25. 711-1194 Actuator Drive Shaft

26. 712-0116 Lock Nut

27. 712-0138 Hex Nut 1/4-28

28. 712-0221 Jam Lock Nut

29. 712-0429 Hex Lock Nut

30. 712-0798 Hex Nut 3/8-16

31. 712-3010 Hex Nut 5/16-18

32. 713-0284 Chain

33. 713-0286 Chain

34. 713-0413 Sprocket

35. 714-0101 Hairpin Clip

36. 714-0104 Hairpin Clip

37. 714-0115 Cotter Pin

38. 714-0388 Key

39. 715-0249 Roll Pin

40. 717-0302 Drive Plate

Part No. Part Description

Ref.

No.

41. 732-0121 Extension Spring

42. 732-0209 Extension Spring

43. 736-0119 Lock Washer 5/16

44. 736-0158 Lock Washer 5/8

45. 736-0160 Flat Washer

46. 736-0163 Flat Washer

47. 736-0217 Lock Washer

48. 736-0242 Beleville Washer

49. 736-0275 Flat Washer

50. 736-0300 Flat Washer

51. 736-0329 Lock Washer

52. 736-0623 Flat Washer

53. 736-0639 Flat Washer

54. 737-0170 Lubricant

55. 737-3007 Grease

56. 738-0143 Shoulder Screw

57. 738-0279 Spindle: Drive Plate

58. 738-0924 Shoulder Screw 1/4-28 x .375”

59. 741-0163A Bearing Housing Assembly

60. 741-0192 Flange Bearing

61. 741-0563 Ball Bearing

62. 741-1111 Hex Flange Bearing

63. 746-0949 Steer Cable

64. 746-0951 Idler Cable: Auger

65. 747-0973 Clutch Rod: Drive

66. 750-0903 Split Spacer

67. 750-0997 Spacer

68. 750-1097 Split Spacer

69. 750-1196 Spacer

70. 756-0344 Drive Pulley

71. 756-0625 Roller Cable

72. 784-0377 Frame Support Bracket

73. 784-0379 Frame Cover: Upper

74. 784-0380 Frame Cover: Lower

75. 784-0384 Auger Cable Bracket

76. 784-5590 Bracket: Shift — Frame

77. 738-0975 Axle: Wheel

78. 714-0151A Klik Pin

79. 734-1593 Wheel

Part No. Part Description

Model 31AE993I401

21 15

30 5

Model 31AE993I401

Ref.

No.

1. 646-0012 Cable Assembly: Auger/Drive

2. 684-0053B Chute Crank Assembly

3. 705-5266 Chute Crank Bracket

4. 710-3119 Hex Screw 3/8-16 x .75”

5. 710-1878 Hex Screw3/8-16 x 1.75”

6. 710-0458 Carriage Bolt 5/16-18 x 1.75”

7. 710-0572 Carriage Bolt 5/16-18 x 2.5”

8. 710-0891 Shear Bolt 5/16-18 x 1.75”

9. 710-3015 Hex Screw 1/4-20 x .75”

10. 711-0677 Ferrule

11. 712-0287 Hex Nut 1/4-20

12. 712-0429 Hex Lock Nut

13. 712-3010 Hex Nut

14. 714-0101 Hairpin Clip

15. 714-0104 Hairpin Clip

16. 720-0201A Chute Crank Knob

17. 720-0284 Knob

18. 726-0100 Push Cap

19. 736-0105 Bell Washer

20. 736-0185 Flat Washer

21. 736-0242 Beleville Washer

22. 736-0270 Bell Washer

23. 736-0275 Flat Washer

24. 741-0475 Plastic Bushing

25. 747-0624 Chute Crank

26. 747-0983 Lower Shift Rod

27. 747-0997 Upper Shift Rod

Part No. Part Description

Ref.

No.

28. 749-0989A Upper Handle LH

29. 749-0990A Upper Handle RH

30. 749-0991 Lower Handle

31. 750-0963 Clutch Rod Connector

32. 710-1625 Oval C-Sunk Screw

33. 712-0127 Flat Weld Nut

34. 725-0157 Cable Tie

35. 746-0950 Trigger Control

36. 625-0007 Light Assembly

37. 705-5218 Handle Engagement RH

38. 705-5219 Handle Engagement LH

39. 710-1003 Special B Screw

40. 712-0271 Hex Sems Nut

41. 712-0429 Hex Lock Nut

42. 720-0232 Shift Knob

43. 731-0061 Handle Panel

44. 736-0159 5/16 Washer

Part No. Part Description

725-1658 Halogen La mp 725-1672 Lens Assemb ly

777D00133 Label: Front Handle Panel 777D00179 Label: Yard Man Sides 777D05319 Label: Auger 13/33 777I20412 Label: Panel Steeri ng RH 777I20747 Label: Panel Steeri ng LH 777S30511 L abel: Chute Dange r 777S30514 L abel: Housing Da nger

NOTE: For painted parts, please ref er to the list of color codes below. Please add the applicable color code, wherever needed, to the part number to order a replacement part. For instance, if a part numbered 700-sextets is painted YardMan Green, the part number to order would be 700-sextets-0665.

Yard-Man Green: 0665

Yard-Man Yellow: 0674

Powder Black: 0637

Model 31AE993I401

24 25

Ref.

No.

1. 07386 Washer

2. 684-0123A Belt Cover Bracket Assembly

3. 710-0191 Hex Screw 3/8-24 x 1.25”

4. 710-0237 Hex Screw 5/16-24 x .625”

5. 710-0502A TT Sems Screw

6. 710-0607 TT Screw 5/16-18 x 0.5”

7. 710-1245 Hex Lock Screw 5/16-24 x .875”

8. 712-0116 Jam Nut

9. 714-0118 Key

10. 731- 2531 Be lt Cover

11. 732-0303 Extension Spring

12. 736- 0159 5/16 Washer

13. 736-0217 Lock Washer

14. 736-0242 Beleville Washer

15. 736- 0264 Fla t Washer

17. 738- 0215A Shoulder Screw

18. 748- 0234 Shoulder Spacer

19. 754-0131 V-Belt

20. 756- 0240 Fla t Idler

21. 756- 0241B Double Pulley

22. 784-5726 Idler Bracket

23. 712- 0324 Hex Lock Nu t: 1/4-20

24. 732-0705 Cable Guide

25. 736- 0173 Fla t Washer

26. 629-0071 Extension Cord: 110V, 3-prong

Part No. Description

Model 31AE993I401

27 37

22 32

Ref.

No.

1. 710-0276 Carriage Screw

2. 710-0458 Carriage Bolt 5/1 6-18 x 1.7 5”

3. 710-0805 Hex Bolt 5/16-18 x 1.5 ”

4. 710-0896 Hex AB Screw 1/4-14 x .625 ”

5. 710-3015 Hex Screw 1/4-20 x .75”

6. 712-0429 Hex Lock Nu t

7. 712-3027 Hex Flange Lock Nut

8. 731-0846C Up per Chute

9. 731-0851A Chute Flange Keeper

10. 731-1313C Cable Guide: Chute Tilt

11. 731-0903D Lower Chute

12. 784-5680 Handle Suppt. Brac ket 5/8 RH

13. 736-0159 5/16 Washer

14. 736-0231 Flat Washer

15. 736-0506 Special Washe r

16. 746-0902 Chute Control Cabl e

17. 746-0903 Chute Cable w/Clip

18. 784-5594 Cable Bracket

19. 784-5604 Chute Tilt Handle

20. 684-01 02 Handle Panel Assembly w/ Tilt

21. 710-0459A Hex Bolt 3/8-24 x 1.5”

22. 710-0599 TT Screw 1/4-20 x 0.5”

23. 711-0653 Clevis Pin

24. 712-0116 Jam Nut

25. 784-5682 Handle Suppt. Brac ket 3/8 RH

26. 714-0104 Cotter Pin

27. 732-0145 Spring

28. 732-0193 Spring

29. 732-0746 Torsion Spring

30. 735-0199A Rubber Bumper

31. 736-0105 Bell Washer

32. 784-5681 Handle Suppt. Brac ket 3/8 LH

33. 736-0509 Special Washe r

34. 747-0877 Cam Rod

35. 748-0362 Cam: Handle Lock

36. 748-0363 Pawl: Handle Loc k

37. 784-5619A Shift Handle

38. 784-5679 Handle Suppt. Brac ket 5/8 LH

Part No. Description

9 5

Notes

MANUFACTURER’S LIMITED WARRANTY FOR:

The limited warranty set forth below is given by MTD PRODUCTS INC (“MTD”) with respect to new mercha ndise purchased and used in the United States, its possessions and territories.

MTD warrants this product against defects in material and workmanship for a period of two (2) years commencing on the date of original purc ha se an d w i ll, at its option, repai r or replace, free of charge, any part found to be defective in material or workmanship. This limited warranty shal l only apply if this product has been operated and maintained in accordance with the Operator’s Manual furnished with the product, a nd has not bee n subj ect to misuse, abuse, commercial use, neglect, accident, improper maintenance, alteration, vandalism, theft, fire, water or damage because of other peril or natur al di sa ste r. Damage resulting from the installation or use of any accessory or attachment not approved by MTD Products Inc. for use with the product(s) covered by this manual will void your warranty as to any resulting damages.

Normal wear parts or components thereof are subject to separate terms as follows: All normal wear part or component failures will be covered on the product for a period of 90 days regardless of cause. After 90 days, but within the two year period, normal wear part failures will be covered ONLY IF caused by defects in material or workmanship of OTHER component parts. Normal wear parts and components include, but are not limited to, belts, blades, blade adapters, grass bags, rider deck wheels, seats, snow thrower skid shoes, shave plates and tires. Batteries are covered by a 90-day limited replacement warranty.

HOW T O OBTAIN SERVICE: W arr anty service is a v aila b le , WITH PROOF OF PURCHASE THROUGH YOUR LOCAL AUTHORIZED SERVICE DEALER. To locate the dealer in your area, please check for a listing in the Yellow Pages or contact the Customer Service Department of MTD PRODUCTS INC by calling 1-800-800-7310 or writing to P.O. Box 368022, Clev e land, Ohio 44136-9722.

This limited warranty does not provide coverage in the following cases:

a.The engine or component parts thereof. These items

carry a separate manufacturer’s warranty. Please refer to the applicable manufacturer’s warranty on these items.

b.Log splitter pumps, valves and cylinders have a sepa-

rate one year warr an ty.

c. Routine maintenance items such as lubricants, filters,

blade sharpening and tune-ups, or adjustments such as brake adjustments, clutch adjustments or deck adjustments; and normal deterioration of the ex terior finish due to use or exposure.

d. MTD does not extend any warranty for products sold

or exported outside of the United States of America, its possessions and territories, except those sold through MTD’s authorized channels of export distribu- tion.

No implied warranty, including any implied warranty of merchantability or fitness for a particular purpose, applies after the applicable period of express written warranty above as to the par ts as ident ified. No o ther express war ranty or guaranty, whether wri tten or or al, except as mentioned above, given by any person or entity, including a dealer or retailer, with respect to any product shall bind MTD. During the period of the Warranty, the exclusive remedy is repair or replacement of the product as set forth above. (Some states do not

allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.)

The provisions as set f orth in this W a rranty pr o vide the sole and exclusive remedy arising from the sales. MTD shall not be liable for incidental or consequential loss or damages including, without limitation, expenses incurred for substitute or replacement lawn care services, for transportation or for related expenses, or for rental expenses to temporarily replace a warranted product. (Some states do not allow the exclusion or limita-

tion of incidental or consequential damages, so the above exclusion or limitation may not apply to you.)

In no event shall recover y of any kind be greater than the amount of the purchase price o f the pro duct sold . Alter ati on of the safety features of the product shall void this Warranty. You assume the risk and liability for loss, damage, or injury to you and your property and/or to others and their property arising out of the use or misuse or inability to use the product.

This limited warranty shall not extend to anyone other than the original purchaser, original lessee or the person for whom it was purchased as a gift.

How State Law Relates to this Warranty: This limited warranty gives you specific legal rights, and you may also have other rights which vary from state to stat e.

Yard-Man 31AE993I401 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual