These accessories were available when the chipper- shredder was purchased. They are also available at most Sears retail outlets, and service centers. Most Sears stores can order repair parts for you when you provide the model number of your Craftsman chipper-shredder.

Spark Air

Plug Filter

Model Number ............ 247.775880 ..........................

Serial Number ...........................................................

Date of Purchase ......................................................

Record both serial number and date of purchase and keep in a safe place for future reference.

GENERAL OPERATION

Read thisowner'sguidecarefully in itsentirety before attemptingto assemble thismachine. Read, understand,and follow all instructionson the machine and in the manual(s) beforeoperation. Be completely familiar with the controlsand the proper use of the machine before operating it. Keep this manual in a safe place for future and regular reference and for orderingreplacement parts.

Your chipper-shredderis a powerful tool, not a plaything. Therefore, exercise extreme cautionat all times. Your unit has been designed to performtwo jobs; to chipand shred vegetation found in a normal yard. Do not use itfor any other purpose.

Never allow children under age 16 to operate the unit. Children 16 years and older shouldonlyoperate the unit underclose parental supervision. Only responsible individualswho are familiar with these

rules of safe operationshouldbe allowedto use your unit,

Keep the area of operation clear of all persons, particularlysmall children and pets. Stop the engine when they are in the vicinityof the unit. Keep work area clean and clear of branches or obstacleswhich

could cause you to stumbleor fall.

When feeding material intothisequipment, be extremely carefulthat pieces of metal, rocks,bottles, cans or other foreign objects are not included. Personal injuryor damage to the machine could result.

Always wear safety glasses or safety goggles, during operationand while performingan adjustmentor

repair, to protect eyes from foreign objects that may be thrownfrom the machine.

Wear sturdy, reugh-soled work shoes and closefitting slacks and shirt. Shirt and slacksthat coverthe arms and legs and steel-tood shoes are recommended. Do notwear loose fitting clothes or jewelry and secure hair so it is above shoulder length. They can be caughtin moving parts. Never operate a unit in bare feet, sandals or sneakers. Wear glovss when feeding matedal in the chipper chute or shredder hopper.

Never placeyour hands, feet, or any part of your body intothe shredder hopper,chipper chute, discharge opening, or near any moving part while the engine is running. Keep clear of the discharge opening at all times. If it becomes necassary to push matedal into the chipper chute or shredder hopper, use a small diameter stick, NOT YOUR HANDS.

If it is necessary for any reasonto unclogthe feed intake or discharge openingsor to inspector repair any part of the machine where a movingpart can come in contact with your body or clothing,stop the machine, allow it to cool,disconnectthe spark plug wire from the spark plug and move it away from the spark plug before attemptingto unclog, inspector repair.

Do not operate unitwhile underthe influence of alcohol or drugs.

The machine shouldonly be operated on a level surface. Never operate your uniton a slippery,wet, muddyor icy surface. Keep yourwork area clean and clear of branches or obstacles which could cause you to stumbleand fall. Do notoverreach. Maintaining properfooting and balance is essentialto preventing accidents.

Do notallow an accumulationof processed material to build up in the discharge area as thiswill prevent properdischarge and can resultin kick-backfrom the chipper chute.

Keep your face and body back from chipper chute to avoid accidental bounce back of any material.

Do nottransport machine while engine is running. If the cutting mechanism stdkesa foreign objector if

your machineshouldstart making an unusual noise or vibration, immediately stop the engine and allowthe machine to come to a complete stop. Disconnectthe spark plugwire and move it away from the spark plug. Take the following steps.

a.Inspect for damage.

b. Repair or replace any damaged parts.

o.Check for any loose partsand tighten to assure

continuedsafe operation.

Never attempt to attach or remove catcher bagwhen engine is running. Shut the engine off and wait for the

impellertocometoacompletestopTheimpeller.

continuestorotatefor a few seconds after the engine is shut off. Never place any part of the body in the impeller area untilyou are sure the impeller has stopped rotating.

Muffler and engine become hotand can cause a bum.

Do not touch.

Do not allow leaves or other debris to build-upon

engine'smuffler. The debris couldignite and cause a fire.

Do not attempt to shred or chip material larger than specified in this manual. Personal injuryor damage to the machine could result.

Do not operate engine if air cleaner or cover over carburetor air-intake is removed, exceptfor

adjustment. Removal of such parts could create a fire hazard.

Only use accessories approvedfor thismachine by the manufacturer. Read, understand,and follow all

instructionsprovidedwith the approved accessory. If situationsoccur which are not covered by this manual, use care and goodjudgment. Contact your dealer for assistance.

Keep discharge chute deflector, chipper chute door, and all other guards and safety devices in place and operating propady.

Only operate unit in gooddaylight. Do notoperate unit at nightor in dark areas where yourvision may be impaired,

CHILDREN

Tragic accidents can occur if the operator is not alert to the presence of small children. Children are often attracted to the chippar-shredderand the chippingand shredding

activity. Never assume that children will remainwhere you last saw them.

Keep childrenout of the work area and underthe watchful eye of a responsibleadult other than the

operator.

Be alert and turnthe unitoff ifa child enters the area. Never allow children underthe age of 16 to operate the chipper-shredder,

least two minutes before refueling.

b.Replaco gasoline cap securely and wipe offany spilledgasolinebefore startingthe engine as it may cause a fire or explosion.

c.Extinguishall cigarettes, cigars, pipes and other sourcesof ignition.

d.Never refuel unit indoorsbecause flammable vaporswill accumulate in the area.

e.Never storethe machineor fuel container inside where there isan open flame or spark suchas a

gas hotwater heater, space heater, clothesdryer or furnace.

Never run your machine in an enclosed area as the exhaust from the engine contains carbon monoxide, which is an odorless, tastelessand deadly poisonous gas.

To reducefire hazard, keep engine and mufflerfree of leaves, grass, and other debris build-up. Clean up fuel andoil spillage. Allowunit to cool at least 5 minutes beforestoring.

Before cleaning, repairing,or inspecting,make certain the impellerand all movingparts have stopped. Disconnectthe spark plug wire and keep wire away

from spark plug to prevent accidental starting. Do not use flammable solutionsto clean air filter.

Check the blade and engine mountingscrews at frequent intervalsfor propertightness. Also visually inspect bladesfor wear and/or damage (e.g., bent, cracked). Replace with blades which meet original equipmentspecifications.

Keep all nuts, bolts,and screws fight to be sure the equipmentis in safe workingcondition.

Never tampar with safety devices. Check their proper operationregularly.

After strikinga foreign object, immediatelystop the engine, disconnectthe spark plug wire from the spark plug, and thoroughlyinspectthe unit for any damage.

Repair damage before startingand operatingunit. Do notalter or tamper with the engine's governor setting. The governor controlsthe maximum safe operatingspeed ofthe engine. Over-speeding the engine is dangerous and will cause damage to the engine and to other movingpartsof the machine.

SERVICE

Use extreme care in handlinggasolineand other fuels.

They are extremely flammable andthe vapors are explosive.

a.Store fuel and oil in approved containers, away from heat andopen flame, and outof the reach of children. Check and add fuel before startingthe engine. Never remove gas cap or add fuel while the engine is running. Allow engine to coolat

YOUR RESPONSIBILITY

Restrictthe use of thispower machine to persons who read, understandand follow the warnings and instructionsin this manual and on the machine.

SAVE THESE INSTRUCTIONS FOR

FUTURE REFERENCE

Discharge Chute

Hopper*

Bottle

of Oil

ChipperChute

Safety

Glasses

Catcher Bag

*The hopper is packed in the top insert in your chipper-shredder carton.

Figure 1

Remove all loose parts includingowner's manual. See figure 1.

Roll chipper-shredderout of the canon.

Make certainall parts and literaturehave been removedbefore the cartonis discarded.

LOOSE PARTS

(Refer to figure 1.)

a, Hopper Assembly

b.DischargeChute

c.Chipper Chute

d.Catcher Bag

e.Bottle of Oil

f.Safety Glasses

g.Owner'sManual (not shown in figure 1)

TOOLS REQUIRED

1.1/2"or AdjustableWrenches

2.7/16" or AdjustableWrenches

3.9/16" or AdjustableWrenches

4.Funnel

DISCONNECTING SPARK PLUG

Disconnect the spark plug wire and move it

away from the spark plug before assemblingthe

chipper-shredder. See figure 2.

Spark PlugWire

IMPORTANT: This unitis shippedwithout gasoline or oil in the engine, Al_erassembly, see OPERATION sectionof this manual for proper fuel and engine oilfill-up.

NOTE: To determine rightand left hand sides of your chipper-shredder, stand behind the unit with the engine farthest away from you.

Yourchipper-shredderhasbeen completelyassembled at the factory, exceptforthe hopperassembly,chipper chute,discharge chuteand the catcherbag.

These parts are shippedloosein the carton. A pairof safety glasses and a bottle ofoil are also includedin the canon.

UNPACKING FROM CARTON

Cut the corners of the canon.

Remove all packing inserts.

Figure 2

ATTACHING DISCHARGE CHUTE

Remove the wing knobs from each side of the discharge opening on the chipper-shredder.See figure 3.

Using two 7/16" wrenches, remove hex locknut, two spacers, and the bex bolt fromtop of the housingassembly. For easy assembly,do not remove the second spacer from the hex bolt. Place the discharge chute in positionon the dischargeopening. Inserthex boltand spacer

through hinge on dischargechute and housing (spacer fits inside of hinge). See figure 3 inset.

Hex Nut

--Hex Bolt

Spac_er_-J-_Hinge

\

Wing

Dischargl

Figure 3

Place second spacer over hex boltinsidethe other part ofthe hinge. Secure with hex lock nut. Tighten securely.

Secure both sides of dischargechute to housing using wing knobs that you earlier removed. Tighten wing knobs.

ATTACHING HOPPER ASSEMBLY

Remove the 8-3/8" long hex boltand the hex nut from the bottomof the inlet guide opening. See figure 4 inset.

Place the hopperassembly on the ground and hold it in the positionshown in step 1 in figure 4. Holdingthe hopper, pushhopper pivotdoor down insidethe hopper. See figure 4.

Slide the hopperassemblytowards the chipper- shredder housingso that the upper guide on the hopper assemblyslides under the stop washer on each side of the inletguide, See figure 4.

Align the two holes(one on each side) of the lower hopperwith the two holes (one on each side) ofthe inletguide. See figure 4 inset. insert the hex bolt(that you earlier removed) from the leftthroughthe holeon the hopper and the inletguide. Insertthe hex nut onto the bolt from the otherside. See figure 4 inset.

Tighten the bolttillthe lock nut is engaged. Make sure to remove sideplay from the bolt, but the hoppershouldbe able to pivot.

Inlet Guide Opening

Hopper Pivot Door

He_

Hopper Nut

Hopper

Figure 4

To raise the hopper, holdthe hopperby the hand-holdand liftit up till it clicksintoposition. To Iowerthe hopper, hold the hopperby the

hand-holdand pullthe release bar. The hopper shoulddrop down. See figure 5.

Release Bar

Figure 5

The flap controlrod is already attached to the hopper at the top. The other end of the rod has to be attached

to the stop washer on the inletguide. See figure 6. Raise the hopper tillit clicksinto position. Unscrewthe shoulder boltfrom the stop washer on the inlet guide. See figure6.

Align the loose end of the flap controlrodwith the stop washer on the inletguide.

Slidethe shoulder boltthroughthe opening in the flap controlrod. Secure tightly.See figure 6.

&WARNING; This flap controlrod is a safety device to hold the flap in place inside the hopper while shreddingbranches. Do not operate the chipper-shredderwithout

properly attachingthis flap controlrodto the unit.

Stop

Hex Washer*

Nut* //

=ettI /

io_

Attach flap control rod here

Insertone each of the hex bolts,lock nuts,and flat washers (that you earlier removed) through each hole in the chute and the brace.Tighten these boltsto secure brace to the chute. Tightenboltssecuringthe brace tothe lower frame. These boltshad been removedeadier. Tighten the three nuts on the weld studs.

Washer

Chu_

Bmce

Flap Control

Rod

*Do not remove these hardware from the inlet guide assembly while attaching the flap control rod.

Figure 6

ATTACHING THE CHIPPER CHUTE

Your unitis shippedwith one end of the brace already securedto the lower frame. Loosen the boltssecuringthe brace to the frame.

Remove the three cupped washers and hex nuts from the weld studsbeside the opening on

the left side of the housing.See figure 7. Remove the two sets of hex bolt, lock nut, and

fiat washer from the two holes on the upper end of the brace as shown in figure 7.

Place the chipperchute over the weld studs so

the sloton the chute istowardsthe bottom.Align the three holesat the bottomof the chute with

the three weld studs.

Secure with the three pairsof cupped washers and hex nutsthat you earlier removed. Do not tighten the nuts at this time. Make sure to place the cupped side of the washer againstthe chipperchute.

Align the holes towardsthe front opening of the chute with the holes on the brace. See figure7.

Figure 7

ATTACHING THE CATCHER BAG

Your chipper-shredderisequipped with a catcher bag to catch the shreddedmaterial.

To attach the bag, place the openingof the bag over the chute deflectorand the chute flange.

Make sure itcompletely coversthe chute deflector.

Depress the plunger on the drawstring, and pull on the drawstring until the bag is tight around the chute opening. Release plunger to lock it into position. See figure 8.

OPERATING CONTROLS

(Refer to Figure 9,) Release Bar

Used to release the hopper when raisingor lowering. Choke Lever

Used to enrich the fuel mixturein the carburetor when startinga cold engine.

Starter Handle

Used to manually start the engine.

Hopper Assembly

Allowsleaves and small branches upto 1"diameterto be fed intothe impellerfor chippingand shredding, Lowerthe hopper to collectraked material for shredding.

Throttle Control

Regulates speed of the engine.

Chipper Chute

Allows bulkyvegetation like stalksor heavy branches upto 3" diameter to be fed intothe impellerfor chippingand shredding.

Catcher Bag (not shown)

Used to collectthe shredded material.

Rear Wheel Lock Lever

Used to lock the rear wheels from moving.

Stopping Engine

Move throttlecontrollever to STOP position. Disconnectspark plugwire and move away from spark plugto preventaccidental starting.

shredder, again refer to the safety rules on WARNING: Before usingyourchipper-

pages 3 and 4 of this manual. Always be careful.

GAS AND OIL FILL-UP

Oil (Packed with unit)

Only use high quality detergent oil rated with API service classification SF, SG or SH. Select the oil'sviscositygrade accordingto your expected operating temperature. Followthe chart below.

NOTE: Although multi-viscosity oils (5W30, 10W30, etc.) improve starting in cold weather, these multiviscosity oils willresult in increasedoil

consumptionwhen used above 32??F. Check the oil level more frequently to avoid possible engine damage from runninglow on oil.

Fill engine with oil as follows.

Remove oilfill dipstick. See figure 10.

Remove cap and fill gas

Remove dipstick

\

Figure 10

With chipper-shredder on level ground, use a funnel to fillengine with oil to FULL mark on

dipstick.Capacity is approximately 26 ounces.

Be careful not to overfill.

Check oil level.

Add oil if necessary. Replace dipstick and

tighten.

NOTE: Do not overfill. Oil bottle packed with unit contains 26 oz. of oil.

Gasoline

WARNING: Experience indicatesthat alcohol blended fuels (called gasohol or using ethanol or methanol) can attract moisture which leads to separationand formationof acids duringstorage. Acidicgas can damage the fuel system of an engine whilein storage. To avoid engine problems, the fuel system should be emptied before storage for 30 daysor longer. Drain the gas tank, start the engine and letit run until the fuel linesand carburetor are

empty. Use fresh fuel nextseason. See STORAGE instructionsfor additionalinformation.Never use

engine or carburetor cleanerproducts in the fuel tank or permanent damage may occur.

Fill gas tank with gas as follows.

Remove fuel cap. See figure 10.

Make sure the container (from which you will pour the gasoline) is clean and free from rust or foreign particles. Never use gasoline that may be stale from long periods of storage in the container.

Fill fuel tank with clean, fresh, lead-free

automotive gasoline. DO NOT use Ethyl or high octane gasoline. See figure 10.

Replace fuel cap.

WARNING:oftopoffuel tankDonottopreventspillsandfillcloserthan1/2toinch allowfor fuel expansion. If gasolineis accidentlyspilled,move chipper-shredder away from area of spill.Avoid creatingany sourceof ignitionuntilgasolinevaporshave disappeared.

Check the fuel level periodically to avoid running out of gasoline while operating the chipper- shredder.

If the unit runs out of gas as it is shredding or chipping, it may be necessary to unclogthe unit

before itcan be restarted. Refer to "Removing the Flail Screen" instructionsin SERVICE AND

ADJUSTMENT section.

STARTING ENGINE

&WARNING: Be sure no one other than the operator is standingnear the chipper- shredderwhilestartingor operatingthe unit.

Do not operate thischipper-shredder unlessthe chutedeflectorhas been properly installedand securedwith hand knobs.

NOTE:TOprevent the unit fromsliding,place your foot firmlyagainst the tire.

1.Attach spark plug wire --

\

2. Place throttle

in Fast Position

3.Move choke

to "on" position

4. Pull rope

Figure 1t

Attach spark plug wire and rubber boot to spark plug. See figure 11.

Place throttle in FAST position. See figure 11. Move choke lever to CHOKE position (in the direction of the arrow) as shown.

If restarting a warm engine after a short shutdown, move choke lever to =No Choke" position.

Grasp starter handle and pull ropeout slowly untilengine reaches startof compressioncycle (rope willpull slightlyharder at this point).Let the rope rewind slowly. Pull ropewith a rapidfull arm stroke. Let rope returnto starter slowly.See figure 11.

When engine starts, move choke lever to half choke positionuntil engine runs smoothlyand then to No Choke position.

If engine fails to start after three pulls, move choke lever to No Choke positionand pullstarter rope again.

Ifengine rims, but does not continue to run, move choke lever to Full Choke positionand pull rope again.

Move choke lever to OFF positionas engine warms up.

NOTE: A noise will be heard when finding the start of

the compression cycle. This noise is caused by the

flails and fingers which are part of the shredding

mechanism falling intoplace, and shouldbe

expected./n addition,the flails and fingers will be noisyafter the engine is started, untilthe impeller

reaches furl speed.

STOPPING ENGINE

Move starter switch to OFF position.

Disconnect spark plugwire and move away from spark plug to preventaccidentalstarting.

USING YOUR CHIPPER-SHREDDER

A WARNING: Do not attempt to shred or chip any matedal otherthan vegetation found in a normal yard (i.e., branches, leaves, twigs,etc.).

The chipper-shredderis designed for two different methodsof operation.

a.Leaves and small branches up to 1/2" diameter (maximum) can be fed intothe hopperassembly when it is in the raisedor lowered position.See figure 12.

b.Bulky material,such as stalksor heavy branches,up to 3" in diameter shouldbe fed intothe chipperchute. See figure 12.

A WARNING: Do not put material larger than is specifiedinto the hopper, and/or into

the chipperchute. Personal injuryor damage to the machinecould result.

If it becomes necessaryto pushmaterialintothe chipper-shmdder,use a small diameter stick- NOT YOUR HANDS. The stickshouldbe small

enoughthat itwill be ground up if it gets intothe impellerassembly.

LOWER THE HOPPER ASSEMBLY

To lowerthe hopper assembly, use one handto

grasp the hand-hold at the top of the hopper

assembly and lift slightly.See figure 5.

Pullup on the release bar, and lower the hopper assembly to the ground.Release the bar. See

figure 5.

A WARNING: Never remove chute deflector tillthe unit has completely stopped.Never

shut offthe engine until all chipping is completed.

For best performance, it is important to keep the shreddingblade and the chipper blades sharp. If the composition of the material being discharged

GENERAL RECOMMENDATIONS

Always observe safety ruleswhen performing any maintenance.

The warranty on this chipper shredderdoes not cover items that have been subjectedto operator abuse or negligence.To receive full value from the warranty, operator must maintainthe chipper- shredder as instructedin this manual.

Some adjustments willneed to be made periodicallyto maintain your unitproperly.

All adjustments in the Service and Adjustments sectionof this manual shouldbe checked at least once each season.

Followthe maintenance schedule given below. Periodicallycheck all fasteners and make sure these are tight.

A WARNING: Always stop the engine and disconnect the spark plugwire before performingany maintenance or adjustments. Never remove discharge chute tillthe engine has completelystopped.

CLEANING

Clean the chipper-shredderby runningwater from a hose through the hopper assembly and chipperchute with the engine running.Allowthe chipper-shredderto dry thoroughly.

Wash the bag pedodicallywith water. Allow todry thoroughlyin the shade. Do not use heat.

ENGINE MAINTENANCE

Engine Oil

Only use high qualitydetergent oilrated with API service classification SF, SG or SH. Select the

oil'sviscosity grade according to your expected

operatingtemperature. Refer to page 9 ofthis

manualfor viscositychart.

The four-cycle engine of your chipper-shredder

willnormallyconsumesome oil. Therefore, check engine oil level regularly approximately

avery five hours of operationand before each usage.

Stop engine and wait several minutesbefore checkingoil level. With engine on level ground, the oil mustbe to FULL mark on dipstick.

Change engine oilafter the first five hours of operation,and every twenty-fivehours thereafter.

To Drain Oil

Drain oilwhile engine is warm. Followthe instructionsgiven below.

Remove oil drain plug. Catch oil in a suitable container.

When engine isdrained of all oil, replace drain plug securely.

Refill with fresh oil. Refer to GAS AND OIL FILL-UP section.

Replace dipstick.

Air Cleaner

The air cleaner prevents damaging dirt, dust,etc., from enteringthe carburetorand being forced into the engine and is importantto engine life and performance.The air cleaner consistsof a pre- cleaner or foam filter, and a paper filter.

Never run the engine withoutair cleaner completely assembled.

To Service Air Cleaner:

1.Service pre-cleaner after every 25 hours of use, or at least once a season.

2.Service filterevery 100 hours of use, or at least once a season.

3.Service pre-cleanerand filtermore often under dusty conditions.

Remove wing nut and cover.

Slide pre-cleaner offfilter. Clean the insideof

base and cover thoroughly.

Clean pre-cleanaras follows:(See figure 13.)

a.Wash in water and detergentsolution,and squeeze(donottwist)untilalldirtisramoved.

b.Rinse thoroughlyin clear water.

c.Wrap ina cleanclothand squeeze (donot twist) untilcompletelydry,or allowtoair dry.

d.Saturatewithengineoiland squeeze(don't twist) to distributeoiland removeexcessoil.

L BasePaperFilter

Figure 13

NOTE: If the pre-cleaner is torn or damaged in any way, replace it.

Ifnecessary,replacepaper filter(do not attempt

to clean). Installnew filter on base.

Slide pre-cleaner over filter. Install cover and wing nut. Tightenwing nut securely.

Clean Engine

Clean engine periodically. Remove dirt and debris with a clothor brush.

Frequently remove grass clippings, dirt and debris from cooling fins,air intake screen and levers and linkage. See figure 14. This will help ensure adequate cooling and correct engine speed.

Clean cooling

Figure 14

Yearly or every 25 hours, whicheveroccursfirst, remove the blower housing and clean the areas shownin figure 14 to avoidoverspeeding, overheatingand engine damage. Clean more often if necessary.

NOTE: Cleaning with a forceful spray of water is not recommended as water could contaminatethe fuel

system.

WARNING:areasnearby Temperaturemay exceed 150of muffler?? F(65??C)and.

Avoid these areas,

Spark Plug

Clean the spark plug and reset the gap to .030" at least once a season or every 50 hours of operation. See figure 15. Spark plug replacement is recommended at the start of each season. Refer to engine parts list for correct spark plug type.

'Feeler (

Plug

Figure 15

NOTE: Do not sandblast spark plug. Spark plug

should be cleaned by scrapingor wire brushing and washing witha commercialsolvent.

Muffler

A WARNING: Do not operate the chipper- shredder without a muffler, or tamper with the exhaust system. Damaged mufflersor spark arresterscould create a fire hazard.

Inspect periodically, and replace if necessary. If your engine is equipped with a spark arrester screen assembly, remove every 50 hours for cleaning and inspection. Replace if damaged.

&WARNING: Always stop engine, disconnect spark plug wire, and move it

away from spark plug before performingany adjustmentsor repairs.

LUBRICATION

Lubricate the pivot points on the release bar, hopper assembly, chute deflector and chipper chute once a season using a light oil. See figure 16

Figure 16: Lubrication Chart

REMOVING THE FLAIL SCREEN

If the discharge area becomes clogged, remove the flailscreen and clean area as follows.

Stop engine, make certain the chipper- shredder has come to a complete stop and disconnect spark plug wire from the spark plug before unclogging the chute.

Remove the two hand knobs on each side of the dischargechute (also called the chute deflector).

Liftthe dischargechute up, and keep it out of the way.

Remove two hairpinclips from the clevis pins whichextend throughthe housing.Remove the clevispins, See figure 17.

Pullthe flail screen from inside the housing.

See figure 17.

Clean the screen by scrapingor washingwith water.

Reinstallthe screen.

Put the discharge chute back to its original positionand tighten the hand knobs.

NOTE: Be certain to reassemble the flail screen with

the curved side down.

Chute Deflector

Chipper Chute

Remove the flail screenas instructedin previous section.

Using a 1/2"wrench, remove the chipperchute by removingthree hex nuts and washers. See figure 17,

Using a 7/16" wrench, remove the brace

(holdingthe chute to the frame) by removingthe hex bolts.

NOTE: When re-assembling,the cupped washer goes on the slot towardthe bottom of the chipper chute with the cupped side against the chute.

Rotate the impeller assembly by hand untilyou locate one of the two chipperblades in the

chipper chute opening. Remove the blade, using a 3/16" allen wrench on the outside of the blade

and 1/2" wrench on the impeller assembly (inside the housing). See figure 18.

SlotBlade

Hex Nut,

Washer

Hand Knobs

Figure 17

SHARPENING OR REPLACING

THE BLADES

Chipper Blades

Disconnectspark plug wire and move it away from spark plug.

Figure 18

Remove the other blade in the same manner. Replace or sharpen blades.

If sharpening, make certain to remove an equal amount from each blade.

Reassemble in reverse order. Make certain bladesare reassembled with the sharpedge facing the directionshownin figure 18 (sharp edge isassembled toward the slottedopeningat the bottom).

Torque boltsand nutsto 250-350 inch-pounds.

Shredding Blade

The shredding blade may be removed for sharpening

or replacement as follows.

Disconnectsparkplug wire and move it away

from spark plug.

Lower the hopper assembly. Block up the housing.See figure 19.

Weld Bolt

Allen

Screw

Pipe

Torque Wrench

Figure 19

Remove the six hex lock nuts and lock washers from the housingweld boltsusing a 1/2"wrench. Separate the chipper-shredderintotwo halves.

Remove the back-up plate.

NOTE: When reassembling, make certain the embossed tab faces inward towards the impeller, and opening on the back-up plate is toward the bottom of the unit.

Remove the two hand knobs and cupped washers whichsecure the chute deflector. Raise the chute deflector.

Inserta 1/2" or 3/4" diameter pipethrough the flail screen intothe impellerto keep itfrom turning,or remove the flail screen and insert a piece of wood (2 x 4) intothe chute opening. Remove the two outside screwson the blade, using a 3/16" allenwrench and a 1/2"wrench.

Remove the blade by removing the center bolt, lockwasher and fiat washer.

the blade to avoid contacting the weld bolts ,_ WARNING: Use caution when removing

on the housing.

When sharpening the blade, follow the original angle of grind as a guide. It is extremely important that each cutting edge receives an

equat amount of grinding to prevent an unbalanced blade.

An unbalanced blade will cause excessive vibration when rotating at high speeds and may

causedamage to theunit.The bladecan be tasted for balance by balancing iton a roundshaft screwddveror nail. Removemetalfrom the heavy side untilitis balancedevenly.See figure20.

When reassemblingthe blade, tightencenter boltto between 550 and 650 inch-poundsand the two outer boltsto between 250and 350 inch-

pounds, or lackingtorque wrench, tighten securely.

1. insertscrewdriver throughhole

d/

2. Bladeshouldbe parallelto ground Screv_

Driver\Blade

Figure 20

ADJUSTING CARBURETOR

A WARNING: If any adjustmentsare made to the engine whiletheengine isrunning(e.g.

carburetor),keep clear of all moving parts. Be careful of heated surfaces and muffler.

The carburetor has been pre-set at the factory and shouldnot requireadjustment.However, if your engine does not operate properlydue to suspected carburetor problems,take yourchipper-shredderto your nearest SEARS service center.

ENGINE SPEED

The engine speed on your chipper-shredderhas been set at the factory. Do not attempt to increase engine speed or it may result in personal injury. If you believe

the engine is running too fast or too slow, take your chipper-shredder to the nearest SEARS service

center for repair and adjustment.

TIRES

Recommendedoperating tire pressure is 24 p.s.i.

(sidewallof tire may give tire manufacturers

recommendedpressure).Equal tire pressureshould be maintained on both tires.

WARNbeadsmayING:causetire/rimassemblyExcessivepressurewhenseatingtoburstwith

force sufficienttocauseserious injury.

Prepare your chipper-shredderfor storageat the end of the season or if the unitwillnot be used for 30 days or more.

A WARNING: Never store machinewith fuel in the fuel tank inside of building where fumes may reach an open flame or spark, or where ignitionsourcesare present such as hot water end space heaters, furnaces, clothes dryers, stoves, electricmotors,etc.

A yearly check-up by your local Sears service center is a good way to make certain your chipper-shredder will provide maximum performance for the next

season.

CHIPPER-SHREDDER

Clean the chipper-shredderthoroughly.

Wipe unitwith an oiled rag to prevent rust (use a light oil or silicone).

ENGINE

IMPORTANT; It is importantto prevent gum deposits from forming in essentialfuel system parts such as carburetor,fuel filter,fuel hose, or tank during storage. Also, experience indicatesthat alcohol blendedfuels (called gasohol or using ethanol or methanol) can attractmoisturewhich leads to separationand formationof acids duringstorage. Acidic gas can damage the fuel system of an engine while in storage.

Drain the fuel tank.

Start the engine and let it run untilthe fuel lines and carburetor are empty.

Drain carburetor by pressingupward on bowl drain which is located belowthe carburetor.

Never use engine or carburetorcleaner

products in the fuel tank or permanent damage

may occur.

Use fresh fuel next season.

NOTE: Fuel stabilizer is an acceptable alternativein

minimizing the formation of fuel gum deposits during storage.

Add stabilizerto gasoline in fuel tank or storage container.

Always follow the mix ratiofound on stabilizer container.

Run engine at least 10 minutesafter adding stabilizerto allow the stabilizerto reach the

carburetor.

Do not drain the gas tank and carburetorif using fuel stabilizer.Drain all the oilfrom the

crankcase (this shouldbe done after the engine has been operated and is stillwarm) and refill the crankcase with fresh oil.

If you have drainedthe fuel tank, protectthe inside of the engine as follows.

Remove spark plug,pour approximately 1/2 ounce (approximatelyone tablespoon) of engine oil intocylinderand crank slowlyto distributeoil. Replace spark plug.

OTHER

Do not store gasolinefrom one season to another.

Replace yourgasoline can if your can startsto rust. Rust and/or dirtin your gasolinewill cause problems. Store unit in a clean, dry area. Do not store next to corrosivematerials, such as fertilizer.

NOTE; ff storing in an unventilated or metal storage shed, be certain torustproofthe equipment by coating with a light oil or silicone.

PROBLEM

POSSIBLECAUSE CORRECTIVEACTION

Enginefailstostart

Loss of power; operationerratic

Engine overheats

Too much vibration

Unit does not discharge

Rate of discharge slows considerablyor compositionof discharged material changes

1.Fueltankempty,orstalefuel

2.Spark plug wire disconnected

3.Faulty spark plug

4.Throttlecontrolnot in correct position

1.Spark plug wire loose

2.Unit runningon Choke

3.Blocked fuel line or stale fuel

4.Water or dirt in fuel system

5.Carburetor out of adjustment

6.Dirty air cleaner

1.Carburetornot adjusted properly

2.Engine oil level low

1.Loose parts or damaged impeller

1.Dischargechute clogged

2.Foreignobject lodgedin impeller

1.Shreddingblade and/orchipping blade dull

1.Fill tank with clean, fresh fuel

2.Connect wire to spark plug.

3.Clean, adjustgap or replace.

4.Move throttlecontrolto FAST position

1.Connect and tighten spark plug wire

2.Move choke lever to OFF position

3.Clean fuel line;filltank with clean, fresh gasoline.

4.Disconnect fuel lineat carburetorto drain fuel tank. Refillwith fresh fuel.

5.ContactyourSEARS service center.

6.Serviceaircleaner.

1.Contact your SEARS service center

2.Fill crankcase with properoil

1.Stop engine immediatelyand disconnectspark plug wire.

Tighten all bolts and nuts.Make all necessary repairs. If vibration

continues, have unit serviced by e SEARS service center.

1.Stop engine immediatelyand

disconnectspark plug wire. clean flailscreen and inside of

blower housing.

2.Stop engine immediatelyand disconnectspark plugwire. Remove lodgedobject.

1.Sharpen or replace blade(s)

SEARS CRAFTSMAN 8.5 H.P. CHIPPER-SHREDDER

5

21

14 18

6

29

12

97

52

74

MODEL 247.775880

13

33

56

63

65

Key Part No

No

-- 770-1228A

1 11480

2 681-0118

3 681-0144

4710-0542

710-0607

710-3256

7712-0429

8712-3027

9714-0104

10715-0129

11726-0106

12726-0135

13728-0175

14732-0546

15732-0629

16735-0127

17735-0651

18736-0119

19738-0137A

20 738-0946

21 747-0531A

22 747-0747

23 747-1124

124 747-1125 ,25 781-0492A 126 781-0633

27781-0698

28781-0715

29781-0752

30781-0754-0689

31781-0755-0689

32738-0813

33 731-1899

37710-0751

38736-0173

39712-3027

40 749-1004

41 710-0106

43712-3010

44736-0242

45735-0249

48 681-0068-0689

Description

Owner'sManual

Stop Washer

Inlet Guide Assembly

Arm Bracket Assembly Hex Flange Bolt: 5/16-18 x 8.375" (Gr.5)

Hex Washer Head Self-Tap- ping Screw: 5/16-18 x 0.5" Button-Head Screw 1/4-20 x 0.5"

Lock Nut: 5/16-18

Hex Flange Lock Nut: 1/4-20

Internal Cotter Pin

Spiral Pin

Cap Nut

Speed Cap Nut

Pop Rivet

Torsion Spring

Hopper Door Spring

Rubber Washer

Hopper Flap

Lock Washer

Shdr. Scr: .340 x .285 x 1/4-20

Shdr. Scr: .56 x .165 x 5/16-18

Rel. Rod: 5/16" dia.

Hopper Door Rod

Flap Retaining Rod

Flap Retaining Bail

Hopper Pivot Door

Chute Flap Strip

Hopper Lock Bracket

Shredder Plate

Flap Mounting Bracket

Upper Hopper

Lower Hopper

Shredder Axle

Chipper Chute

Hex Bolt 1/4-20 x .625

Flat Washer .28 I.d. x .74 O.d.

Flanged Lock Nut

Chipper Chute Support

Hex Scr. 1/4-20 x .625 (Gr. 2) Hex Nut 5/16-18 Thd. (Gr. 5) Bell Washer .345" I.d. x .88"

Shredder Chute Flap

Chipper Chute Assembly

Key PartNo

No

49726-0214

50734-0255

51 750-0793

52 712-3027

53 714-0149B

55720-0170

56710-0805

57781-0510B

58736-0366

59734-1845

68781-0490

69712-0411

70736-0119

71681-0030

72742-0571

73781-0457-0637

74681-0094

75781-0735

76715-0166

78710-1054

79710-3008

80681-0004A-0689

82710-0825

83726-0211

85711-0835

87719-0329

88711-0833B

89710-1254

90736-0217

91736-0247

92732-0306

937360117

94714-0104

95711-1304

96736-0160

97734,-1797

98726-0299

99747--0982

100 764-0501

Description

Push Cap 5/8" dia,

Ai rVaIve

Chute Hinge Spacer

Hex Ctr. Lock Nut 1/4-20 Thd.

Internal Cotter Pin

Hand Knob

Hex Bolt 5/18-18 x 1.5"

Shredder Frame

Flat Washer 1,12 x ,64 x .120

Wheel Assembly

Special LockWasher

Flail HousingAss'y,-- Inner

Hex Bolt5/16-24 x ,75" Lg,

Engine,Tecumseh 143.988503

Chipper Blade

Hex Top Lock Nut 5/18-24 (Gr. 5)

Lock Washer 5/16" I.d.

impeller assembly Shredder Blade Shredder Screen

Discharge Chute Assembly

Retaining Clip

Spring Roll Pin

Flat Head Scr. 5/16-24 x .75"

Hex Bolt 5/16-18 x .75" (Gr. 5) Flail Housing Ass'y--. Outer Hex Bolt 1/4-20 x 3.75"

U Nut 5/16-18

Clevis Pin

Flail Blade

Clevis Pin

Hex PatchBolt 3/8-24 x 2.25"

(Gr.8)

Lock Washer 3/8"

Flat Washer .406" I.d. x 1.25"

Compression Spring

Flat Washer

Internal Cotter Pin

Axle Shaft

Flat Washer

Complete Wheel: Grey

Push Cap

Lock Rod

Shredder Bag

757

87

7O

69

101

182

251

1t0

Key Part No.

No.

--m

135385

227652

15A 30700

650494

33454

1729916

18651028

1934663

2035319

2536460

26650561

3729216

3829642

40 40011

4040012

4140009

4140010

4240013

4240014

4327888

45 36897

47651033

4834034

4936896

6935262A

7035376

7135377

7228582

7535319

Gasket

Key Part No.

No.

18534707

18634667

20034677

20331342

204651029

206610973

20733878

209 650821

215 35882

223650378

22427915A

23828820

23927272A

24037104

24233267

24533268

245A 35881

25033269A

251650513

26036250

261650788

26229747B

264A 650802

265 33272B

27534185B

27631588

277650729

277A 651036

Screw, 5/16-18 x 3-31132"

(1-800-473-7247)

Forthe locationof a SearsPartsandRepairCenterinyourarea

Call24 hours a day,7 daysa week

1-800-488-1222

For information on purchasinga Sears Maintenance Agreement or to inquire about an existing Agreement

call 9 am - 5 pm, Monday-Saturday