Craftsman 247.77763 Owner`s manual

Owner's Manual
-6.5 Horse Power
Model No.
CAUTION: Before using this product,
read this manual and follow all Safety
Rules and Operating Instructions.
Sears, Roebuck and Co., Hoffman Estates, IL 60179, U.S.A.
Printed in U.S.A.
Warranty Information
Service & Adjustment
Safe Operation Practices
Off-Season Storage
Parts Ust
on Craftsman
For one year from the date of purchase, when this Craftsman chipper-shredder vacuum is maintained, lubricated,
and tuned up according to the operating and maintenance instructionsin the owner's manual, Sears will repair,
free of charge, any defect in material or workmanship.
This warranty excludes blades, chipper blades, flails, air cleaners, spark plugs, catcher bags and tires which are
expendable parts and become worn during normal use.
If this chipper-shredder vacuum is used for commercial or rental purposes, this warranty applies for only 30 days
from the date of purchase.
This warranty gives you specific legal rights, and you may also have Other rights-which vary4rem_stateto state.
Sears, Roebuck and Co., D/817WA, Hoffman Estates 160179
These accessories are
available where the unit 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 chippershredder vacuum.
Hose Kit
Engine Oil Type
6.5 Horse Power
Engine Oil Capacity
Fuel Capacity:
20 Ounces
Spark Plug
Spark Plug Gap
Tire Pressure
Model Number .......2..4...7.;.7...7.7..6...3.
SAE 30
Sedal Number ...........................................................
Approx. 3 Quarts
Champion RN4C
Date of Purchase ......................................................
Record both serial number and date of purchase and
keep in a safe place for future reference.
24 P.S.I.
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 your chipper-shredder vacuum. Failure to comply with these instructions may result in
personal injury. When you see this symbol--heed its warning,
Yourchipper-shreddervacuumwas builtto be operated accord ng to the rules fQr safe operaDANGER • tion in this manual. As with any type of powerequipment,carelessnessor error on the part of I
• the operatorcan resultin seriousinjury.If you violate any of these rules, you may cause seri- --"ous injury to yourself or others.
This unitisequipped with an internalcombustion 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 taws. Federal laws apply on federal lands. A spark arrester for the
muffler is available through your nearest Sears Authorized Service Center (See the REPAIR PARTS section
of this manual.)
General Operation
Read this owner's guide carefully in its entirety before
attempting to assemble this machine. Read,
understand, and follow all instructions on the machine
and in the manual(s) before operation. Be completely
familiar with the controls and the proper use of the
machine before operating it. Keep this manual in a
safe place for future and regular reference and for
ordering replacement parts.
Your chipper-shredder vacuum is a powerful tool, not a
plaything. Therefore, exercise extreme caution at all
times. Your unit has been designed to perform two
jobs; to chip and vacuum vegetation found in a normal
yard. Do not use it for any other purpose.
Never allow children under 16 to operate the unit.
Children 16 years and older should only operate under
close parental supervision. Only responsible
individuals who are familiar with these rules of safe
operation should be allowed to use your unit.
Keep the area of operation clear of all persons,
particularly small children and pets. Stop the engine
when they are in the vicinityof the unit.
When feeding matedal 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 result.
Always wear safety glasses or safety goggles, dudng
operation and while performing an adjustment or
repair, to protect eyes from foreign objects that may be
thrown from the machine.
Wear sturdy, rough-soled work shoes and close fitting
slacks and shirt. Shirt and slacks that cover the arms
and legs and steel-toed shoes are recommended. Do
not wear loose fitting clothes or jewelry, and secure
hair above shoulder length. They can be caught in
moving parts. Never operate a unit in bare feet,
sandals or sneakers. Wear gloves when feeding
material in the chipper chute.
Do not operate the unit while under the influence of
alcohol or drugs.
Do not over-reach. Keep proper footing and balance at
all times.
Never place your hands or any part of your body or
clothing near or under rotating parts. Keep clear of the
discharge opening at all times Never insert your
hands or any part of your body or clothing into the
nozzle, chipper chute or discharge opening as the
rotating impeller can cause serious injury.
If it is necessary for any reason to unclog the feed
intake or discharge openings or to inspect or repair any
part of the machine where a moving part can come in
contact with your bodY pr cl_qthing,st_p 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 to unclog, inspect or repair.
Never operate unit without vacuum bag and discharge
chute properly affixed to unit. Large zippered end of
bag must be closed to prevent objects from being
blown out.
Never operate unit without either the inlet nozzle or
optional hose attachment propedy affixed to unit.
These devices shield the operator from accidental
contact with the rotating impeller. Never attempt to
convert the unit from nozzle to hose mode or vice versa
with the engine running.
Never attempt to remove or empty vacuum bag when
engine is running. Shut the engine off and wait for the
impeller to come to a complete stop before removing
the bag. The impeller continues to rotate for a few
• -
Check and add fuel before starting the engine. Never
remove gas cap or add fuel while the engine is
running. Allow engine to cool at least two minutes
before refueling.
Replace gasoline cap securely and wipe offany
spilledgasoline before startingthe engine as it may
cause a fire or explosion.
Extinguishall cigarettes, cigars, pipes and other
sourcesof ignition.
Never refuel unit indoorsbecause flaEnmablevapors
will accumulate in the area.
Never store the machine or fuel container inside
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.
Keep all guards and safety devices in place and
operating propedy.
Do not allow an accumulation of processed matedal
to build up in the discharge area as this will prevent
proper discharge and can result in kick-beck from the
chipper chute.
Keep your face and body backfrom chipper chute to
avoid accidental bounce back of any material.
If the cutting mechanism strikes a foreign object or if
your machine should start making an unusual noise
or vibration, immediately stop the engine, disconnect
the spark plug wire and move the wire away from the
spark plug. Allow the machine to stop and take the
following steps:
a. Inspect for damage
b. Repair or replace any damaged pads.
c. • Check for any loose parts and tighten to assure
continued safe operation.
Muffler and engine become hot and can cause a burn.
Do not touch.
Do not allow leaves or other debris to build up on
engine's muffler. The debris could igniteand cause a
Do not operate engine if air cleaner or cover over
carburetor air-intake is removed, except for
adjustment. Removal of such pads couldcreate a fire
where there is an open flame or spark such as a gas
hotwater heater, clothes dryer or furnace.
Never run your machine in an enclosed area as the
exhaust from the engine contains carbon monoxide,
which is a odorless, tasteless and deadly poisonous
To reducefire hazard, keep engine and muffler free of
leaves, grass, and other debris build-up. Clean up
fuel and oilspillage. Allow unit to cool at least 5
minutes before storing.
Before cleaning, repairing, or inspecting, make certain
the impeller and all moving parts have stopped.
Disconnect the spark plug wire and keep wire away
from spark plug to prevent accidental starting. Do not
use flammable solutionsto clean air filter.
Keep ell nuts, bolts, and screws tightto be sure the
equipment is in safe workingcondition.
Never tamper with safety devices. Check their proper
operation regularly.
After striking a foreign object, immediately stop the
engine, disconnectthe spark plug wire from the spark
plug, and thoroughlyinspect the unitfor any damage.
Repair damage before starting and operating unit.
Do notalter or tamper with the engine's governor
setting. The governor controlsthe maximum safe
operating speed of the engine. Over-speeding the
engine is dangerous and wilt cause damage to the
engine and to other moving parts of the machine.
Check the vacuum bag frequently for wear. Replace if
worn or damaged.
Keep vacuum bag free of debris _'..henn_ in use.
Tragic accidents can occur if the operator is not alert to the
presence of small children. Children are often attracted to
the chippingand vacuuming activity. Never assume that
children will remain where you last saw them.
Keep children out of the work area and under the
watchful eye of a responsible adult other than the
Be alert and turn the unit off if a child enters the area.
Never allow children under the age of 16 to operate
the chipper-shredder vacuum.
Your Responsibility
Use extreme care in handling gasoline and other
fuels. They are extremely flammable and the vapors
are explosive.
Store fuel and oil in approved containers, away from
heat and open flame, and out of the reach of children.
Restrict the use of thispower machine to
persons who read, understand and follow the
warnings and instructionsin this manual and on
the machine.
IMPORTANT: This unitis shipped without gasoline
or oil in the engine. After assembly, see
OPERATION sectionof this manual for proper fuel
and engine oil flU-up.
NOTE: To determine right and left hand sides of your
_1-- chipper-shredder vacuum, stand beh=indthe unit with
the engine farthest away fromyou.
Your chipper-shreddervacuumhas been completely
assembled at the factory,except for the nozzle, the
chipper chute with support bracket and the catcher bag.
These parts are shipped loose in the carton. A pair of
safety glasses and a 20-oz. bottle of engine oil are also
includedin the carton.
Removing From Carton
Cut the corners of the carton.
Remove all packing inserts.
Remove aUloose parts. See Figure 1.
Push down on handle to lift front of chippershredder vacuum and roll unit out of the carton.
Make certain all parts and literature have been
removed before the carton is discarded.
Loose Parts
Chipper Chute
with Support Bracket
Catcher Bag
Figure 1.)
Chipper Chute with Support Bracket
Catcher Bag
Safety Glasses (Not Shown in Figure 1 )
A 20-oz. Bottle of Engine Oil
Tools Required
20-oz. Bottle
of Engine Oil
Figure I
Spark Plug
1/2" or adjustablewrenches
7/16" or adjustablewrenches
Disconnecting Spark Plug
(See Figure 2.)
Before proceedingwith assembly of your new
chipper-shreddervacuum unit, disconnectthe
spark plug wire from the spark plug on the
engine and move it away. This willprevent
accidental starting ofthe engine in any way.
Figure 2
Attaching the Nozzle
Wing Nuts
(See Figure 3.)
Remove the three plasticwing nuts from the
front of the chipper-shreddervacuum.
Place the nozzle over the three weld studs.
Secure with the plasticwing nuts just removed.
Figure 4
Attaching the Chipper Chute
Loosen, but do NOT remove, the two hex bolts.
flat washers, and flange nuts which are secured
to the support bracket. See Figure 5.
Hex Bolts
Figure 5
Figure 3
NOTE: The metal tab in the nozzle must depress the
safety switch on the frontof the chipper-shredder
vacuum or the engine willnot start. See Figure 4.
Remove the two flange nuts, hex bolts and
saddle washers which secure the right side of
the upper handle to the rightside of the lower
handle. See Figure 6.
Next, remove the three hex nuts and bell
washers from the weld studs found beside the
opening on the rightside of the chipper-shredder
vacuum. See Figure 6.
Flange Nuts
Hex Nuts &
Hex Bolts &
Bell Washers
Saddle Washers
Attaching the Catcher Bag
Figure 6
Place the chipper chute over the weld studs
keeping the slottedside towards the bottom.
Loosely secure with the three hex nuts and bell •
washers that were removed earlier. Do not fully
tighten the hex nuts at this point in the assembly.
See Figure 7.
Bracket \\
Align the supportbracket with the holes in the
rightside of the upper and lower handles where
the hex boltswere just removed. Push up
slightlyon the chipper chute in order to better
align the holes in the supportbracket with the
holes in the handles.
Replace the hex bolts,saddle washers and
flange affixthe support bracket to the
handle assemblies. See Figure 7.
Follow by tighteningall hardware-se_-urelyfirst
on the chipper chute, then on the support
bracket, and finally on the handle.
Place the catcher bag inside of handle
assembly, Slip the opening on the bag over the
discharge chute, making certain it is over the rib
on the dischargechute.
Place the four straps on the top of the bag over
the upper handle, hooking them on the studs.
Squeeze the clamp on the drawstring and pull
the drawstringtight. Release the clamp. See
Figure 8,
Catcher Bag
Figure 7
Figure 8
Know Your Chipper-Shredder
Read this owner's manual and safety rules before operating your chipper-shreddervacuum. Compare the
illustrationsbelow with your equipment to familiarize yourself with the locationof various controlsand
nadjustments. Save this manual for future reference.
The operation of any chipper-shredder vacuum can result in foreign objects being thrown into
" _r_SA_,,_SES_i the eyes, whichcan result in severe eye damage. Always wear safety glasses, provided with
the Craftsman chipper-shredder vacuum, for operating this equipment or while performingany
adjustments or repairs on it.
Drive Clutch Control
HStaar_le_A[ _
_'_ \/!Tf_
Front Caster Wheet"/_
hoz] Ie Door
Spark Plug Wire_ /
% I _;/\
I_ AdjustmentLevers!__
Air Filter
I _-J
;I Fuel
C'ontro/ "J_--'J
View from rearvaCfuum
Figure 9
Front Caster Wheels
Operating Controls
Allows for a choice in the manueverability of the
Chipper Chute
Allows twigs and small branches up to three inches in
diameter to be fed intothe impeller for shredding.
The primer is used to assist in starting a cold engine
or restadmg of a engine after a short sl_btdown,
Yard waste such as leaves and pine needles can be
Starter Handle
vacuumed up throughthe nozzle,
This is used to start the engine.
Catcher Bag
Throttle Control
Collects shredded material fed in throughthe chipper
Controls the engine speed and stops the engine.
chute or vacuumed in through the nozzle.
Drive Clutch Control
Stopping the Engine
Squeezing the drive clutchcontrolcauses the
chipper-shredder vacuum to self-propel.
• Move throttlecontrol lever to STOP position.
• Disconnect spark plug wire and move away from
the spark plug to prevent accidental starting while
the equipment is unattended,
Nozzle Door
Nozzle ground clearance can be adjusted with the
nozzle door.
Meets ANSI safety standards
Craftsman chipper-shredder vacuums conform to the safety standard of the American National Standards Institute (At
WARNING: Never fillthe fuel tank indoors.
Gasoline producesnoxiousfumes. Always
be certain to fillthe fuel tank in a well
ventilated area to avoid inhalation of
gasoline fumes.
Gas And Oil Fill-up
Oil (one 20-oz. bottle shipped with unit)
Only use high quality detergent oil rated with API
service classificationSF, SG or SH. Select the oil's
viscositygrade according to the expected operating
temperature. Followthe chart below.
WARNING: Never smoke while fueling
your chipper-shreddervacuum. Gasoline
producescumbustable fumes which can
ignite and cause personal ir_ry.
NOTE: Although multi-viscosity oils (5W30, 10W30,
"etc.) improve starting in cold weather, these
multivisoosity oils will result in increased oil
consumption when used above 32°F. Check engine
oil level more frequently to avoid possible engine
WARNING: Do not fill closer than 1/2 inch- --from the top of the fuel tank to prevent
spills and to allow for fuel expansion. If
gasoline is accidently spilled, move
chipper-shredder vacuum away from area
of spill. Avoid creating any source of
ignition until gasoline vapors have
damage from running low on oil.
Oil Viscosity
SAE 30
Remove oil fill dipstick.
With the chipper-shredder vacuum on level
ground, use a funnel to fill engine with oil to
FULL mark on dipstick. Capacity is
approximately 20 oz. Be careful not to overfill.
Overfilling will cause the engine to smoke
profusely and will result in poor engine
performance. The oil bottle packaged with your
chipper-shredder vacuum contains 20 oz. of oil.
Tilt chipper-shredder vacuum toward the left,
then re-level. Check the oil level makingcertain
- notto rub the dipstickalong the inside walls of
the oilfill tube. This would result in a false
dipstickreading. Refill to FULL mark on dipstick,
if necessary. Replace dipstick and tighten.
Check oil level three times priorto starting
engine to be certain you've gotten an accurate
dipstick reading. Running the engine with too
little oil can result in permanant engine damage.
Remove fuel cap from the fuel tank.
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 its
container. Gasoline that has been sitting for any
period longer than four weeks should be
considered stale.
Fill fuel tank with approximately 3 quarts of
clean, fresh, leed-free grade automotive
gasoline. DO NOT use Ethyl or high octane
gasoline. Replace fuel cap.
the fuel level periodically to avoid running
out of gasoline while operating the chippershredder vacuum. If the unit runs out of gas as it
is chipping, it may be necessary to unclog the
unit before it can be restarted. Refer to
Removing the Flail Screen on page 15.
Starting The Engine
IMPORTANT: ifyour unitshows any sign of motion
with the drive clutchcontrolin the disengaged
position, shut the engine off immediately. Readjust
following the instructions on page 16.
WARNING: Make sure that no one other
than the operator is standing near the
chipper-shreddervacuum unitwhile starting
or operating.
bag have
Do not operate
the nozzle,
properly installed.
Attach spark plug wire and rubber boot to spark
plug if not already attached.
Place the throttle control lever in FAST position.
Depress the primer three to four times slowly.
Wait about two seconds between each push.
When temperature is at or below 50°F/10°C, it
may be necessary to depress the primer five to
six times. You may have to use the primer to
restart a warm engine after a short shutdown.
Place one foot on the left rear wheelto prevent
the unit from skidding while starting.
Grasp starter handle and pull rope out slowly
until engine reaches start of compression cycle.
The rope will pull slightly harder at this point. Let
the rope rewind slowly.
NOTE: While theengine isreachingthe compression
cycle,you may hear a "clanking"
noise. Thisnoiseis
causedby theimpellerflailspivotingand fallinginto
place and IS normal, This noise will continueuntillthe
impeller reaches full speed.
• -
;lide this lever
to adjust nozzle
door height
Pull the rope with a rapid, continuous, full arm
stroke while keeping a firm grip on the starter
Continuing to keep a firm grip on the starter
handle, let the rope rewind slowly. Do not let the
starter handle snap back against the eye bolt on
the handle. Repeat, if necessary, until engine
starts. Additional priming may be necessary.
Move throttle controlto IDLE position for a few
minutes to warm up the engine. Move it back to
fast when running.
ALWAYS keep the throttle control in the Fast
postion when operating the chipper-shredder
Nozzle Door
Figure 10
NOTE: Raise the nozzle height to vacuum a thick
layer of leaves; lower the nozzle height for smoother
Operation of your
Chipper-Shredder Vacuum
NOTE: Engine may run very slowly for the first five to
ten seconds after it has been started until the impeller
gains momentum and allows the engine to reach its
top RPM.
Your chipper-shreddervacuum is designed to chip
small tree branches and twigs,shred leaves and
vacuum foliage and other lawn debris. For
convenience in operation, your Craftsman chippershredder vacuum is equipped with a drive clutch
control allowing it to "self-propel."
NOTE: To idle smoothly, a new engine may require 3
to5 minutes of running at above the slow idle speed.
The idle speed has been adjusted for proper running
after thisbreak-in period.
WARNING: The impeller (chipping/
shredding mechanism) is rotating at all
times when the engine is running.
Stopping the Engine
• Move throttle control lever to STOP position.
WARNING: Keep your hands away from
the nozzle opening and NEVER place your
hands or arms inside of the chipperchute
when the engine isrunning. Doing socould
result in serious personal injury.
• Disconnect spark plug wire and move away from
the spark plug to prevent accidental starting while
the equipment is unattended.
Adjusting Nozzle Height
The nozzle door height adjustment levers have
five positionsettings and are found each side of
the nozzle door. See Figure 10. The nozzle door
height should be adjusted according to the
Slide the height adjustment lever forward or
backward for adjusting the nozzle door upwards
or downwards. See Figure 10.
IMPORTANT: Your chipper-shredder vacuum is
equipped with a s_fety switch at the front left portion
of the impeller housing.The met-altab on"_henozzle
must depress this switchfor the engine to start. Be
certain the nozzle is properly in place before
attempting to startthe unit. See Figure 4 on page 6.
WARNING: Always survey the area to be
vacuumed thoroughlybefore operating the
chipper-shrsdder vacuum. Clear the area
of any obstructionssuch as toys, dog
chains, etc. Running over such an
obstructioncan result in personal injuryas
well as damage to the chipper-shredder
WARNING: Keep your hands, feet and
any loose clothingclear of the nozzle any
time the engine is running, When the
engine is running, a vacuum is being
created in the nozzle which can draw in
loose clothing.
WARNING: Never make any adjustments
on the nozzle while the engine is running.
Do not vacuum up anythingother than normal
yard waste such as leaves or pine needles.