Craftsman 79785 User Manual

Caution:

ReadandFollow

AllSafetyRules
andInstructions

®

5 HORSEPOWER
3 CUTTnNG STAGE

MULCHING AND BAGGING
CHiPPER-SHREDDER

BeforeOperating

ThisEquipment

Assembly
Operation

CustomerResponsibilities
ServiceandAdjustment

RepairParts

SEARS,ROEBUCKANDCO.,HoffmanEstates,iL

Printed in U.S.A.

60195U.S.A.

770-7110H 9192

(R920818)

SAFETY RULES

WARNING: TO REDUCE THE POTENTIAL FOR ANY INJURY, COMPLY WITH THE FOLLOWING

SAFETY INSTRUCTIONS. FAILURE TO COMPLY WITH THE INSTRUCTIONS MAY RESULT IN
PERSONAL INJURY.

TRAINING

e Read this owner's manual carefully in its entirety before

attempting to assemble or operate this machine+ Be com+

pletety familiar with the controls and the proper use of this
machine before operating it+Keep this manual in a safe

place for future and regular reference and for ordering
replacement parts.,

® Children must never be allowed to operate this equipmenL
e No one should operate this unit while intoxicated or while

taking medication that impairs the senses or reactions+

o This equipment should never be operated in the vicinity

of children, pets or other persons.

e Never run your machine in an enclosed area as the

exhaust from the engine contains carbon monoxide, which
is an odorless, tasteless and deadly poisonous gas+

o Never place your hands or any part of your body or cloth-

ing inside the feeding chamber, discharge chute, or near
any moving part white the machine or engine is running.

® If it is necessary for any reason to inspect or repair the

feeding chamber or any part Of the machine where a m0V-
ing part can come in contact with your body or clothing,
stop the machine, allow it to cool, disconnect the spark
plug wire from the spark plug and move it away from the
spark plug before attempting such inspection or repair+

PREPARATION

e Wear safety glasses provided with your unit while operat-

ing the chipper-shredder to prevent injury from any mate-

rial which may be ejected out of the openings.

e Wear proper apparel.. Avoid wearing loose fitting clothing

Wear gloves when handling material.

e HANDLE GASOLINE WITH CARE as it is an extremely

flammable fuel,

e Check the fuel before starling the engine.. Do not fill the

fuel tank indoors, while the engine is running, or while the
engine is still hot. Turn the unit off and let the engine cool

before refueling

e Fuel your chipper-shredder in a clean area, Do not

smoke while refueling

e Fuel tank cap must be secure at all times except during

refueling.

e Avoid spilling gasoline or oil Wipe the unit clean of any

spilled fuel or oil

e Store fuel and oil in approved containers, away from heat

or open flame, and out of reach of children,

e This machine shoutd be operated only upon a level surface.,
e Assure that all screws, nuts and bolts and other fasteners

are properly secured.

OPERATION
e When feeding shreddable material into this equipment,

be extremely careful that pieces of metal, rocks, bottles,
cans or other foreign objects are not included Personal

injury or damage to the machine could resulL

e If the cutting mechanism strikes any foreign object or if

your machine should start making an unusual noise or
vibration, immediately stop the engine, disconnect the
spark plug wire from the spark plug and move it away
from the spark plug, Allow the machine to stop and take
the following steps:
Inspect for damage
Replace or repair any damaged pads.
Check for any loose parts and tighten to assure contin-
ued safe operation

® The engine must be kept clean of debris and other accu-

mulations.

e Do not allow an accumulation of processed material to

bu{ld up in the discharge area as this will prevent proper
discharge and can result in kick-back from feed opening+

® Never place your hands or any other part of your body or

clothing inside the feeding chamber, discharge chute or
near any moving part while the engine is running.

e Keep all guards and deflectors in place and in good work-

ing condition to assure Continued Safe operation

e Always stand clear of the discharge area when operating

this machine..

e Keep your face and body back from the feed opening to

avoid accidental bounce back of any material

e Do not over-reach. Keep proper balance and footing at all

times..

e The engine governor settings on your machine must not

be altered, changed, or tampered with. The governor
controls the maximum safe operating speeds and pro-

tects the engine and all moving parts from damage

caused by overspeed,

e Do not transport machine while engine is running..
e Do not operate engine if air cleaner or cover directly over

carburetor air intake is removed, except for adjustment

Removal of such parts could create a fire hazard.

MAINTENANCE AND STORAGE
e When this equipment is stopped for servicing, inspection,

storage or to change an accessory, make sure the spark

plug wire is disconnected from the spark plug and moved

away from the spark plug. The machine should be
allowed to cool down before making such inspection,
adjustments, service, etc Maintain your machine with
care and keep it clean for the best and continued safe
operation.

e Do not use flammable solutions to clean the air filter
e When not in use, your machine should be stored out of

the reach of children Keep where gasoline fumes will not

reach an open flame or spark. For tong periods of stor-

age, refer to the "Storage" section of this manual

LOOK FOR THIS SYMBOL TO POINT OUT
IMPORTANT SAFETY PRECAUTIONS. IT I

MEANS--ATTENTION!!! BECOME ALERT!!!
YOUR SAFETY IS INVOLVED.

CONGRATULATIONS on your purchase of a Sears

Craftsman Chipper-Shredder,, It has been designed, engi-
neered and manufactured to give you the best possible

dependability and performance_
Should you experience any problem you cannot easily rem-

edy, please contact your nearest Sears Service Center/
Department in the United States., We have competent, welt-

trained technicians and the proper tools to service or repair
this unit

Please read and retain this manual The instructions will
enable you to assemble and maintain your chipper-shredder

properly Always observe the "SAFETY RULES,"

MODEL
NUMBER

SERIAL

NUMBER

DATE OF

PURCHASE

PRODUCT SPECaFICATIONS

Horsepower: 5°0

Displacement: 12.57 cuo in.

Fuel Capacity: 3 Quarts

(Unleaded)

Spark Plug (Gap _030 in_): Champion

J19LM (or

Equivalent)

Magnetron ® Ignition Air Gap: o0125 in.

MAINTENANCE AGREEMENT

THE MODEL AND SERIAL NUMBERS WILL BE FOUND

ON A LABEL ATTACHED TO THE FRAME OF THE
CHIPPER-SHREDDER

YOU SHOULD RECORD BOTH SERIAL NUMBER AND
DATE OF PURCHASE AND KEEP IN A SAFE PLACE
FOR FUTURE REFERENCE,,

CUSTOMER RESPONSiBILITiES

e Read and observe the safety rules.
e Follow a regular schedule in maintaining, caring for'

and using your chipper-shreddero

e Follow the instructions under "Customer Respons-

ibilities" and "Storage" sections of this Owner's
Manual..

A Sears Maintenance Agreement is available on this
product. Contact your nearest Sears store for details

WARNING: This unit is equipped with an internal combus-
tion engine and should not be used on or near any unim-

proved forest-covered, brush-covered er 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 effec-

tive 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 attester for the muffler is available

through your nearest Sears Authorized Service Center (See
the REPAIR PARTS section of this manual.)

ONEYEARLIMITED WARRANTY ONCRAFTSMANGASCHIPPER-SHREDDER

For one year from the date of purchase, when this Craftsman Chipper-Shredder is maintained, lubricated and
tuned up according to the instructions in the owner's manual, Sears will repair, free of charge, any defect in

material and workmanship..
If this Craftsman Chipper-Shredder is used for commercial or rental purposes, this warranty applies for only 30

days from the date of purchase.
This warranty does not cover:

e Expendable items which become worn during normal use, such as blades, chipper blades, flails, air cleaners,

spark plugs and catcher bags.

e Repairs necessary because of operator abuse or negligence, including bent crankshafts and the failure to

maintain the equipment according to the instructions contained in the owner's manual

WARRANTY SERVICE IS AVAILABLE BY RETURNING THE CRAFTSMAN CHIPPER-SHREDDER TO THE

NEAREST SEARS SERVICE CENTER/DEPARTMENT IN THE UNITED STATES.. THIS WARRANTY

APPLIES ONLY WHILE THIS PRODUCT IS IN USE IN THE UNITED STATES.
This warranty gives you specific legal rights, and you may also have other rights which may vary from state to

state.

SEARS, ROEBUCK AND CO., D/817WA, Hoffman Estates, IL 60195

i, i,ii

iii i ,UU,lU,i i

TABLE OF CONTENTS

,,u,

INDEX

i ii,u , u,

A

Adjustments:

Carburetor .............................................................................15

Engine Speed ..............................................................................15

Assembly Instructions:

catcher Bag ................:ii................................................... ,:,6

Chute Crank Deflector .......................................................6

Hopper Assembly ....................................................................6

Catcher Bag .....................................................................6, 7

C

Catcher Bag .................................................................................6, 7

Controls .............................................................................................7

Customer Responsibilities ..........................................3, 11-13

E

Engine:

Maintenance ................................................................11, 12

Starting ................................................................................................10

Stopping ...................................................................................8

Storage ............... ....................................................................... 12

F

Fuel ................................................................................................9

L

Lubrication .....................................................................................11

M

Maintenance:

Agreement ...........................................................................3

Schedule ...............................................................................11

Engine ............................................................................11, !2

Chipper-Shredder ................................................................! 1

STORAGE ...................................................................................13

SERVICE AND ADJUSTMENT .....................................13-!5

TROUBLE SHOOTING .....................................................16

REPAIR PARTS--CHIPPER-SHREDDER ........ 17, 18

REPAIR PARTS--ENGINE .......................................19-23

PARTS ORDERING/SERVICE .....................................16

i i,,i lUl

0

Oil ..................................................................................................9

Operating Tips ..............................................................................8

P

Parts Ordering ..tt,_tt,,r,tt,::tt,...,,,tt,t.t.ttttotrt.tt,tt....t...... ::.16

R

Repair/Replacement Parts .........................................17-23

Responsibilities, Customer ...................................3, 11-13

S

Safety Rules ................... ....................................................... 2

Sharpening .........................................................................14, 15

Service Recommendations ...................................................1!

Spark Plug ..............................................................................12

Specifications ................................................................................3

Storage ...................................................................................13

T

Table of Contents .............................................................................4

Trouble Shooting ......................................................................16

U

Unclogging .............................................................................13, 14

Unpacking .........................................................................................5

W

Warranty .................................................................................... 3

£

=

ASSEMBLY INSTRUCTIONS

3

Flat ""__

Washer | _ )

5/16 LD.

-NHeXLock

ut 5116-18

Hex Bolt

-_,-----5/16-18 x 8_3/8" Long

i i1,1111,1,1,111,1iii iiiii1,111111[111111111111111111111111111111111

IMPORTANT: This unit is shipped WITHOUT GASO-
LINE or OIL, After assembly, see operation section of

this manuat for proper fuel and engine oil recommen-
dations

NOTE: To determine right and left hand sides of your
chipper-shredder, stand behind and face the hopper

(engine is at the front of the unit),

Your chipper-shredder has been completely assem-

bled at the factory, except for the hopper assembly
(hopper hood and upper leaf ramp section have been

sub-assembled), upper guide assembly, chute deflec-
tor and the catcher bag_The hardware pack and safe-

ty glasses are also included in the carton,,
The hardware pack contains the parts shown in figure

1 (shown full size)

Thread

TOREMOVECHIPPER-SHREDDERFROMCARTOH

Cut the corners of the carton, Remove all packing
inserts,, Roll chipper-shredder out of the carton, Make
certain all parts and literature have been removed

before the carton is discarded.

TOOLSREQUIREDFORASSEMBLY

(1) Phillips Screwdriver

(2) 1/2" or Adjustable Wrenches
(2) 7/16" or Adjustable Wrenches

uss Machine Screws

1/4-20 x 1/2" Long

Hex Lock Nuts

1/4-20 Thread

FIGURE 1,

Hex

Nut .

Hand
Knob

FIGURE2.

Frame

FIGURE 3.

Hopper Pivot

ASSEMBLE THIS

TRUSS SCREW

AND NUT FIRST

Release

Bar

FIGURE 4_

FIGURE 5.

Door,

Stop

Washer

Release

8-318" Long

Flat Washer

Hex Lock Nut

Assembly

Housing

_ from inside the hinge on top of the housing assem-

.._\ / ® Place the chute deflector in position on the dis-

Bar

Bolt

Remove Truss

Screw and Nut

Drawstring

HOWTOSET-UPYOURCHIPPER-SHREDDER

MAKE CERTAIN THE SPARK PLUG

Bolt

AWAY FROM THE SPARK PLUG

WIRE IS DISCONNECTED AND MOVED

Chute

-<P-ATTACHING THE CHUTE DEFLECTOR
® Remove the hand knobs and cupped washers from

each side of the discharge opening on the left side
of the chipper_shredder,,

e Remove hex lock nut, two spacers and hex bolt

/ btyo Do not remove one spacer from the hex bolto

charge opening, Insert hex bolt and spacer through
hinge on chute deflector and housing (spacer fits

inside of hinge)., See figure 2,,

e Place second spacer over hex bolt, inside other

part of hinge. Secure with hex lock nuL Tighten
securely,,

® Secure both sides of chute deflector to housing

Upper using hand knobs and cupped washers (cupped side
Guide of washers go against chute defiector)_

Assembly _P-ATTACHING THE UPPER GUIDE ASSEMBLY

Place upper guide assembly in position on frame,

making certain edges of the upper guide assembly
are underneath stop washers, and the release bar is

in the slots. See figure 3., insert hex bolt 8-3/8" long
through upper guide assembly and frame., Secure

with flat washer and hex lock nut.
NOTE: Make certain upper guide assembly can pivot

by pulling up on release bar and lowering upper guide
assembly,, If necessary, loosen hex lock nut a turn or
two. Put the upper guide assembly back into the
raised position,

-,,=-ATTACHING THE HOPPER ASSEMBLY

Leaf

Ramp

Section

get

Your chipper-shredder has been shipped with the
upper leaf ramp section attached to the hopper
assembly, See figure 4. Attach the hopper assembly
to the upper guide assembly as follows_ Be certain to
place heads of all truss machine screws inside of
hopper assembly°

® Remove one truss machine screw and nut from

each side of hopper assembly as shown in figure 4
Push hopper pivot door down inside lower part
of hopper as you place hopper assembly (both
pieces) inside upper guide assembly_ Replace

truss screws and nuts just removed, using the hole

shown in figure 4, one on each side. Tighten finger

tight only,

e Place the six truss machine screws and nuts found

in hardware pack in the remaining holes of hopper

assembly, alternating sides of the unit and tighten-

ing finger tight only,

e After assembling all eight screws, tighten them

securely

_ATTACHING THE CATCHER BAG

Your chipper-shredder is equipped with a catcher bag

to catch the shredded material,

BEFORE ASSEMBLING THE CHIPPER,_

SHREDDER.

® To attachthe bag,placethe openingof thebag

overthechutedeflectorsoitcompletelycoversthe
chuteopeningDepresstheplungeronthedraw-

................................... ii, i ,lllllll,lll ,IIIIHIIII

string,andputtonthedrawstringuntiltile bagistight
aroundthechuteopening..Releaseplungertolockit

intopositionSeefigure5.

OPERATION

i iii ii ii ,i ii ,i

KNOW YOUR CHIPPER-SHREDDER

READ THIS OWNER'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR CHIPPER-SHREDDER.
Compare the illustrations with your chipper-shredder to familiarize yourself with the location of various controls

and adjustments. Save this manual for future reference_

Hopper

Assembly

Release

Bar

Oil Fill

Dipstick Chipper

Choke

Chute

Chute

Deflector

Throttle

Handle

FIGURE 6.

Catcher

Bag

MEETSANSI SAFETYSTANDARDS

Sears chipper-shredders conform to the safety standard B71.6-1982 of the American National Standards Institute..

ii i ii,i1,1i1,111111iiiii

OPERATINGCONTROLS(See figure 6)

RELEASE BAR--Used to release the hopper when
raising or lowering,

CHOKE LEVER--Used to enrich the fuel mixture in
the carburetor when starting a cold engine._

iiiii1! , , i 'IIM "11'1" IIIIIl'l'll'lll

BEFORE USING YOUR CHIPPER-SHREDDER, AGAIN REFER TO THE "SAFETY RULES" AS SHOWN ON
PAGE 2 OF THIS MANUAL° ALWAYS BE CAREFUL.

STARTER HANDLE--Used to manually start the
engine,

THROTTLE CONTROLmControls engine speed and
stops the engine.

The operation of any chipper-shredder can result in foreign objects being thrown into
tile eyes, which can result in severe eye damage° Always wear the safety glasses pro-
vided with the chipper-shredder or eye shields before chipping or shredding, or' while
performing any adjustments or repairs. We recommend Wide Vision Safety Mask for
over spectacles or standard glasses available at Sears Retail or Catalog Stores..