Craftsman 79960 User Manual

S_EA/ S

OWNER'S

MANUAL

MODEL NO.

987.799601

Caution:

Read and Follow
All Safety Rules

and Instructions
Before Operating

This Equipment.

®

5 Horsepower

CHIPPER/VAC

with Wheel Adjusters

• Assembly

• Operation

• Customer Responsibilities

• Service and Adjustment

• Repair Parts

Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.

FORM 1902963 (11/94)

SAFETY RULES

,_ CAUTION: ALWAYS DISCONNECT SPARK PLUG WIRE AND PLACE WIRE WHERE IT CAN- _tk

NOT CONTACT SPARK PLUG TO PREVENT ACCIDENTAL STARTING WHEN SETTING UP,
TRANSPORTING, ADJUSTING, OR MAKING REPAIRS.

IMPORTANT

YOUR UNIT IS EQUIPPED WITH A SAFETY INTERLOCK SYSTEM TO MINIMIZE INJURY. DO NOT ATTEMPT TO

DEFEAT THIS SYSTEM UNDER ANY CIRCUMSTANCES.

TRAINING:

• Read this Owner's Manual carefully before operating
this equipment. Be thoroughly familiar with the controls

and the proper use of this equipment.

• Never allow children or untrained adults to operate this
equipment

• Keep the area of operation clear of all persons, particu-

larly sin!I1 children, and pets. Keep bystanders at least

25 feet away from the area of operation.

= Familiarize yourself with all of the safety and operating

decals on this equipment and on any of its attachments
or accessories°

• Do not run engine in an enclosed area. Engine exhaust
contains carbon monoxide gas, a deadly poison that is

odorless, colorless, and tastetess_ Do not operate this
equipment near buildings, windows, or air conditioners

o Do not allow hands or any other part of the body or

clothing inside the vacuum inlet, chipper chute, dis-
charge opening, blower deflector, or near any moving

part° Cutting blades begin to rotate when engine starts
and slow down gradually after engine is shut off°

• Before inspecting or servicing any part of the equip-
ment, stop the engine and make sure that all moving
parts have come to a complete stop Disconnect the

spark plug wire and secure it away from the spark plug..
Be aware that rotating blades slow down gradually after

engine is shut off_

• Do not operate this equipment if you are under the influ-
ence of alcohol, medication, or when tired or ill.

PREPARATION:

° Always wear approved safety goggles (provided)

when operating this equipment. The operation of
any powered machine can result in foreign objects

being thrown by high-speed rotating parts.

• Do not wear loose-fitting clothing or jewelry that can get
drawn into the vacuum inlet or chipper chute, or that
can get caught by moving parts_

• Do not operate this equipment unless the collection bag
or blower deflector is installed.

= Do not process material through chipper chute when

equipment ison uneven ground.

= Before starting engine, check that all screws, nuts,

bolts, and other fasteners are properly secured°
Replace any damaged or unreadable warning and oper-
ating decals_

° Wear work gloves, sturdy footwear, and hearing protec-

tion when operating this equipment.

° Use extra,care when handling gasoline and other fuels.

Gasoline and its vapors are highly flammable and
explosive.. To help prevent a fire or explosion:

a. Use an approved fuel container.
b. Never add fuel to a running or a hot engine
c. Keep matches, smoking materials, open flames, and

sparks away from the fuel tank and fuel container.

d. Fill the fuel tank outdoors and with extreme care.

Never fill fuel tank indoors.

e. Replace the caps on the fuel tank and fuel container

and clean up spilled fuel before starting engine. Gas
cap shall never be removed or fuel added while
engine is running.

° Leave 1/2 inch air space at top of fuel tank to alloN for

expansion of fuel.

o Do not store the machine or fue! container where there

is an open flame or spark, or where ignition sources
such as hot water and space heaters, furnaces, clothes
dryers, stoves, or electric motors are present.

,_ LOOK FOR THIS SYMBOL TO POINT OUT IMPORTANT SAFETY PRECAUTIONS. |

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

/

J

OPERATION:

• Before starting this equipment, make certain that the
chipper chute, vacuum inlet, discharge opening, and
blower deflector are empty. Disconnect spark plug wire

before making these check&

* Never carry passengers on this equipment. They could

fall off and be seriously injured, or they could interfere
with safe operation.

• Do not allow hands or any other part of the body or
clothing inside the vacuum inlet, chipper chute, dis-
charge opening, blower deflector, or near any moving

part.

• Before vacuuming, inspect the area where the equip-
ment is to be used and remove all metal, bottles, cans,

or other foreign objects.

• Do not vacuum any burning or smoldering materials
such as cigars, cigarettes, ashes, or cinders.

• When vacuuming or chipping, be extremely careful that

pieces of metal, rocks, bottles, cans, or other foreign

objects are not included.

° Do not use vacuum or blower on areas that have been

recently treated with fertilizers, pesticides, or herbicides..
Follow chemical manufacturer's safety instructions

regarding contact with treated areas..

• Do not vacuum flammable iiquids such as gasoline,

kerosene, diesel fue!, paint thinner, etc.

• If equipment strikes any foreign object or starts making

an unusual noise or vibration, immediately shut off
engine and allow all moving parts to come to a com-
plete stop Disconnect the spark plug wire and secure it
away from the spark plug Then take the following

steps:
ao inspect for damage.

b, Replace or repair any damaged parts..
c. Check for and tighten any loose parts.

° If equipment jams or becomes clogged, immediately

shut off the engine and allow all moving parts to come
to a complete stop. Disconnect the spark plug wire
and secure it away from the spark plug. Use only a

wooden stick to clear away debris..

° Before adding or changing any attachments or before

switching between vacuum and blower operation stop
the engine and allow all moving parts to come to a com-

plete stop. Disconnect the spark plug wire and secure it

away from the spark plug. ........

• Keep atl guards, covers, and shields in place and in
good working condition

• Always stand clear of discharge area when operating
equipment with blower deflector instaliedo Material exits
at a high speed from the blower deflector..

• Do not operate the chipper with the blower deflector
installed

Do not operate the chipper if the chipper chute flap is

damaged or missing

Keep your face and body safely away from the chipper
chute When chipping, stand on either side of chute
and keep arms perpendicular (at a 900 angle) to chute

inlet.

Do not overreach when feeding material into the chip-
per chute, Keep proper balance and footing at all

times.
Check collection bag frequently for deterioration or wear

and replace worn bags. Use only original equipment

replacement bags Bags manufactured by others could

present a safety hazard

Before removing and installing collection bag, stop the

engine and allow al( moving parts to come to a com-

plete stop Disconnect the spark plug wire and secure it

away from the spark plug

Empty the collection bag after each use. Decomposing

debris could generate enough heat to catch fire

Exercise extreme caution on slopes and avoid exces-

sively steep slopes..

Never operate this equipment on a slippery surface.

Look behind and use care when operating in reverse.

o

Do not allow any part of the engine, especially around

the cooling fins and muffler to become clogged with

leaves, oil, grease, or any other combustible material

Watch for traffic when operating near, or when crossing

roadways.

Never leave the equipment unattended when the

engine is running.. Stop the engine, disconnect spark

plug wire, and secure it away from the spark plug

before leaving the equipment

• Use only attachments and accessories that are
approved for use with this equipment..

• Operate equipment only in daylight or in good artificial
fighL

• Do not tamper with the engine governor settings The
governor controls the maximum safe operating speed

and protects the engine and atl moving parts from dam-
age caused by excessive speed. Request help at the

nearest Sears service location if a problem exists.

m

This equipment is provided with a safety interlock sys-
tem which prevents the engine from starting unless the
collection bag or blower deflector is installed.. The sys-
tem is also designed to shut off the engine if the opera-

tor attempts to remove the collection bag or blower
deflector while the engine is running.. Never attempt to
disconnect or otherwise defeat the purpose of this sys-
tem if the interlock fails to operate properly, shut off
the engine and do not operate this equipment until the
system is repaired and is functioning properly.

MAINTENANCE AND STORAGE:

• When equipment is stopped for servicing, inspection,
storage, or to change an attachment or accessory,
make sure the spark ptug wire is disconnected from the
spark plug Allow the engine to cool before making any
inspections, adjustments, etc

• Maintain equipment and atl attachments and acces-
sories in safe working condition°

• Never perform any maintenance while engine is running
or when spark plug wire is connected to spark plug,
except where specifically instructedto do so_

• Never store this equipment with fuel in the fuel tank
inside a building where fumes may reach an open flame
or spark, or where ignition sources are present such as
hot water and space heaters, furnaces, clothes dryers,
stoves, electric motors, etco

• Allow engine to cool before storing in any enclosure.

• Store gasoline in a cool, well-ventilated area, safely
away from any spark- or flame-producing equipment.
Store gasoline in an approved container, safely out of

the reach of children.

. Use only original equipment replacement parts° Parts

manufactured by others could present a safety hazard
even though they may fit on this equipmenL

• Store this equipment where children will not have
access. Always disconnect the spark plug wire from the
spark plug to prevent accidental starting_

• Check collection bag frequently for deterioration or wear
and replace worn bags. Use only original equipment

replacement bags. Bags manufactured by ethers could

present a safety hazard.

• Refer to "Off Season Storage" in this Manual for impor-
tant storage instructions ifequipment is to be stored for
an extended period.

SAFETY DECALS:

• Make certain that all safety decals on this equipment are

kept clean and in good condition. The decals are shown

on Page 35 of this Manual

CONGRATULATIONSonyourpurchaseofaSears
CraftsmanChipperNac.ithasbeendesigned,

engineered and manufactured to give you the best
possible dependability and performance.

Should you experience any problems you cannot easily
remedy, please contact your nearest Sears Service

Center or Retail Store. We have competent, well-trained
technicians and the proper tools to service or repair this

machine.

Please read and keep this Manual The instructions will
help you assemble, operate, and maintain your machine

properly° Always observe the SAFETY RULES

MODEL NUMBER 987_799601
SERIAL NUMBER:
DATE OF PURCHASE:

THE MODEL AND SERIAL NUMBER DECAL IS

LOCATED ON THE LEFT SIDE OF THE ENGINE
MOUNTING PLATFORM.

YOU SHOULD RECORD BOTH THE SERIAL

NUMBER AND THE DATE OF PURCHASE KEEP

THEM IN A SAFE PLACE FOR FUTURE

REFERENCE.

MAINTENANCE AGREEMENT

A Sears maintenance agreement isavailable on this
chipper/vac Contact your nearest Sears store for details.

CUSTOMER RESPONSIBILITIES

* Read and observe the safety rules
* Foltow a regular schedule in maintaining, caring for and

using your chipper/vac,.

o Follow the instructions under "Customer

Responsibilities" and "Storage" sections of this manual.

PRODUCT SPECIFICATIONS

Chipper/Vac

Weight 65 lbs°

Length with Handlebars Extended 48 in.
Length with Handlebars Folded 28 in.

Width 22 in.

Engine

Engine 5 HP Tecumseh Model TVS ! 15
Engine Type Vertical Crankshaft

Air-Cooled

Four Cycle
Engine Displacement ! 1.5 cu in.
Gasoline Capacity 1-1/4 qts.
Oil (21 ounce capacity) Above 32 ° F: SAE 30

Below 32 ° F: SAE 5W30

Spark Plug (gap O.030qn,) Champion J19LM

Autolite 458, or equivalent.

In Canada, replace with

resistor spark plug,

Valve Clearance Intake: .006 in

Exhaust: .,006 in

WARNING: This chipper/vac 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 Sears authorized service

center. See the REPAIR PARTS section of this manual.

LIMITED ONE YEAR WARRANTY

For One Year from date of purchase, when this Chipper/Vac is maintained, lubricated, and tuned up according
to the operating and maintenance instructions in the Owner's Manual, Sears will repair free of charge any
defect in material or workmanship°
This warranty excludes the collection bag, spark plug, air cleaner, and chipper blade which are expendable

parts and become worn during normal User

if this Chipper/Vac is used for commercial or rental purposes, this warranty applies for only 30 days from the

date of purchase
WARRANTY SERVICE IS AVAILABLE BY CONTACTING 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 vary from state to state

SEARS, ROEBUCK AND CO. D/817WA - HOFFMAN ESTATES, IL 60179

TABLE OF CONTENTS

SAFETY RULES ................................................... 2

PRODUCT SPECIFICATIONS .............................. 5

WARRANTY .......................................................... 5

CHIPPER/VAC ATTACHMENTS .......................... 7

ASSEMBLY ........................................................... 8

OPERATION ....................................................... 17

CUSTOMER RESPONSIBILITIES ..................... 27

iNDEX

A

Air Filter ......................... 28

Assembly ....................... 8-16

B

Baffle Plate ................... 16

Blade, Chipper ................... 30

Blower Deflector ............. 13

Blower Operation ................ 24

Bolts, Torque ................ 31

C

Chipper

Chute Location ............... 17

Cutting Blade ................. 30-31

Operating Tips ................ 25

Operation ....................... 25

Clearing Jams and Clogs ....... 26

Collection Bag, Install ........... 10

Collection Bag, Remove ....... 12

Control Lever, Engine ........... 17

Cooling System, Cleaning ....... 28

Customer Responsibilities ..... 27

Cutting Blade, Chipper ....... 30-31

!]

Decals .................... 35

Engine

Air Filter ..................... 28

Control Lever ............... 17

Cooling System ............ 28

Fuel ............................... 19

Ignition .................. 29

Oil .............................. 27

Operation .............. 19-20

Primer ................................ 20

Spark Arrester ............. 28

Spark Plug ..................... 29

6

Gasoline

Adding ....................... 19

Specifications ................... 18

Handlebars ................... 8

Ignition System ....................... 29

Installing Shredder Screen ..... 1l

Jams and Clogs .............. 26

Location of Controls ................ 17

Lubrication .................. 29

Materials to Avoid ................. 21

Model/Serial Number ........... 5

Oil .............................. 5, 18

Off-Season Storage ........... 32

Operation, Safety ................ 3

Parts List........................ 36-40

Preparation, Safety ............ 2

Primer ..................... !7, 20

Recoil Starter Rope .......... 17, 20

Removing Shredder Screen ..... 11

Replacing Chipper Cutting

Blade .................... 30-31

SERVICE AND ADJUSTMENTS ........................ 30

STORAGE ........................................................... 32

TROUBLESHOOTING ........................................ 33

DECALS .............................................................. 35

REPAIR PARTS - CHIPPERNAC ....................... 36

REPAIR PARTS - ENGINE ................................. 38

PARTS ORDERING/SERVICE ........... Back Cover

Safety Rules ....................... 2-4

Safety Decals ................ 35

Safety Interlock ............... 8

Service, Engine ............ 27-29

It

I

J

L

M

0

Service Recommendation

Checklist ......................... 27

Shredder Screen .............. t 1

Spark Arrester ........................ 28

Spark Plug ..................... 29

Starter Rope ................. 17, 20

Storage

Safety ............................... 4

Off-Season ................ 32

T

Tips & Hints

Chipper Operation .......... 25

Vacuum Hose Operation ....... 23

Walk-Behind Vacuuming ........ 22

Torque Chart ................. 31

Training, Safety .................... 2

Troubleshooting ............ 33-34

U

Unpacking ..................... 8

V

Vacuum Hose

Installation ................. 14

P

R

Operation ................... 23

Vacuum Inlet

Cap ............................ 17

Vacuuming

Assembly for ................... 10

Handlebar Position for ........ 8

Operation ...................... 22

Vacuuming and Chipping

Guide ......................... 21

ATTACHMENTS

This attachment was available when the chipper/vac was purchased° It is available at most Sears retail outlets and
service centers. Most Sears stores can also order repair parts for you, when you provide the model number of your

chipper/vac.

VACUUM HOSE

The optional vacuum hose attachment allows you to

extend the reach of the machine by 10 feet to easily
reach in, around, under and behind bushes, shrubs,
trees, fences, lawn furniture, etc. If you purchased a
vacuum hose with the chipper/vac, you will find it

packaged in a separate carton°

Instructions for insta!iation and use of the vacuum hose

are presented in this Manual. See "Vacuum Hose
Operation" on Page t4.

Optional vacuum hose and baffle plate,
(Stock No. 71-85689)

ENGINE ACCESSORIES

Engine accessories such as gas cans, engine oil, and replacement spark plugs are also available at your local Sears

service center and most Sears retail outlets.

ASSEMBLY

Read these instructions in their entirety before you attempt to assemble your new chipper/vaco Your new chipper/vac

has been completely assembled at the factory, except for the items shown in Figure 1.. To ensure proper operation of
your chipper/vac, all nuts and bolts must be securely tightened when changing the configuration of the machine Use
the correct tools as necessary to ensure proper tightness.

UNPACKING INSTRUCTIONS (see Figure 1)

1, The following items are contained in the shipping A
carton and shown in Figure 1: _ B C

(A) Chipper/Vac //
(B) Safety Goggles __P'

(C) Blower Deflector
(D) Collection Bag J

2. Check for missing or damaged parts.. If any parts are

missing or damaged, contact your local Sears service

center or Sears retail outlet for assistance

IMPORTANT: MOTOR oIL AND GASOLINE MUST BE

ADDED TO THE ENGINE BEFORE THE ENGINE IS

STARTED_ THE PROCEDURES FOR ADDING

MOTOR OIL AND GASOLINE ARE ON PAGES 18

AND 19.

NOTE: All references to the front, rear, left and right of

the machine are determined as follows:

The inlet cap for the optional vacuum hose is located on

the front of the machine. The discharge opening is at

the rear The left and right sides are determined by

standing at the rear of the machine when the handlebars

are in the "vacuum" position

UNFOLD THE HANDLEBARS (see Figure 2)

Figure 1: Contents of shipping carton.

ExtendHandlebarsin

VacuumPosition

A

\

Handlebars

Folded

1, Squeeze the handlebar end (with decal "Push in
Here") toward the center of the machine to release end

from the notch in the mounting bracket (C) and swing the

handlebars up over the machine toward the rear.

2. Position the handlebar ends in the "vacuum" notches
of the brackets (D in Figure 2 inset).

3o Unfold the handlebars until the channels on the upper
left and right handlebars are aligned with the lower
handlebars (A) If necessary, loosen knobs (B) before

unfolding handlebars.

4_ Tighten the knobs (B)

CHECK ALL NUTS AND BOLTS FOR

TIGHTNESS

Check all nuts and bolts for tightness following assembly
and according to the schedule given in the section which

describes "Customer Responsibilities" on Page 27.
NOTE: Do not overtighten the bolts which attach the
engine mounting plate to the housing DAMAGE TO

THE HOUSING COULD RESULT

Figure 2: Handlebar position for vacuuming.

ASSEMBLY

ASSEMBLY CONFIGURATIONS

Your machine has been partially assembled at the
factory. The remaining assembly steps should be done
on a clean, level surface, Choose the mode of operation

from the pictures below and then go to the page for

assembly of the chipper/vac in the desired configuration..

Walk-behind vacuuming - see Page t0

WALK-BEHIND VACUUMING

OPERATION CHECKLIST

v" Collection bag installed and zipped

v' Baffle plate off (provided with

optiona] vacuum hose kit only)

V' Vacuum inlet cap installed
v' Handlebars positioned toward the

rear of the machine

CAUTION

To preventpersonalinjuryor propertydamage, donot

connectthe spark plug or start the engine until all
assemblystepsare complete and youhave read and

understoodthe safety and operating instructionsin
this Manual

Blower operation, see Page 12

BLOWER OPERATION CHECKLIST

v' Handlebars positioned toward the

front of the machine.

v" Collection bag removed
v" Blower deflector installed.

v' Vacuum inlet cap installed..

v' Baffle plate off (provided with

optional vacuum hose kit only)

Using the chipper, see Page 10

CHIPPER OPERATION CHECKLIST

v' Handlebars positioned toward the rear of

the machine,

v" Collection bag installed and zipped

v" B{ower deflector and baffle plate (optional)

off

i/" Vacuum inlet cap installed.

Using the vacuum hose (optional) - see Page 14

VACUUM HOSE OPERATION CHECKLIST

v' Handlebars positioned toward the rear of the

machine
Collection bag installed and zipped

v" Baffle plate on
v' Vacuum hose installed

ASSEMBLY

ASSEMBLY FOR WALK-BEHIND VACUUMING OR USING THE CHIPPER

4. Pull the screen (A) out of the discharge opening.. Re-

install the rods and hair pin clips on the screen for safe-
keeping.

IMPORTANT: THE HAIR PIN CLIPS SUPPLIED WITH
THE SCREEN ARE THE ONLY STYLE FASTENERS
THAT SHOULD BE USED° DO NOT USE

SUBSTITUTES OR FAILURE OF EQUIPMENT OR

PERSONAL INJURY COULD RESULT.

5. Remove supports from beneath machine_

STEP 1: REMOVE OR INSTALL SHREDDER SCREEN
A shredder screen (A, Figure 3) is factoryqnstalied

inside the processing chamber, Vacuumed or chipped
material passes through the slots in the screen before it
is discharged, The screen produces up to an 8:1

reduction of material.
The screen is designed for use only with dry materials

Before processing damp materials, remove the screen to
reduce clogging and to improve air flow inside the
processing chamber. Before chipping a large number of
branches, remove the shredder screen for faster

discharge of the chips.

To Remove Shredder Screen:

1. Stop the engine, disconnect the spark plug wire

from the spark plug, and make sure that all moving
parts have come to a complete stop.

2. To remove rear rod (B, Figure 3), remove the
collection bag or the blower deflector (if installed).. Then,

remove the hair pin clip (D) and pull the rod out through
the bottom of the deck

3. Use sturdy supports to prop up the right side of the
machine a few inches Then, remove the hair pin clip
(D) and pull the front rod (C) out through the bottom of

the deck.

To Install Shredder Screen:
1o Stop the engine, disconnect the spark plug wire

from the spark plug, and make sure that all moving
parts have come to a complete stop.

2. Remove the collection bag. Remove the rods and
hair pin clips which were stored on the shredder screen.

Insert the screen (A) into the processing chamber with
the flat, angled end facing to the rear and the curve in
the screen facing to the righL See Figure 3_ Align
mounting holes in screen with the holes in deck..

3. Using sturdy supports, prop up the right side of the
machine a few inches. Insert front rod (C) up through
bottom of deck, into screen mounting hole, and out
through the top of the deck. Test that the rod is through
the screen by pulling on the screen - the screen should
not move. Secure rod with hair pin clip (D).

4. Insert rear rod (B) up through bottom of deck, into the
screen mounting hole, and out through the top of the

deck.. Make sure that the rod is in the screen by trying to
move the screen from side to side Secure the rod with

the hair pin clip (D)

5. Re-install the collection bag_

Figure 3: Shredder screen installation.

10

ASSEMBLY

CAUTION

STEP 2: INSTALL COLLECTION BAG

For walk-behind vacuuming or using the chipper, install

the collection bag as described below.

1. Stop the engine, disconnect the spark plug wire

from the spark plug, and make sure that all moving

parts have come to a complete stop.

2, Make sure the bag (A in Figure 4) is zipped

3. Place the collection bag straps over the handlebars,

4. Line up the tabs on the bag inlet adapter (B) with the
slots in the discharge opening (C) and slide the bag inlet

adapter down all the way into the slots. Turn the
retaining knob (F) until the tab on the knob drops into the

slot on the top of the bag inlet adapter

STEP 3: ADJUST THE VACUUM INLET HEIGHT
The vacuum inlet height can be adjusted to six different

settings in approximately 1/2" increments. These
settings allow inlet suction to be adjusted for varying

needs, For example, when vacuuming deep layers of
leaves, adjust the vacuum inlet height at the front of the
machine to its highest setting as described below (see

Figure 5):

1. Stop the engine, disconnect the spark plug wire

from the spark plug, and make sure that all moving

parts have come to a complete stop,

2. Squeeze the adjuster lever (A in Figure 5) toward the
wheel to disengage the adjuster pin from the hole in the

height adjuster bracket,

3. Rotate the adjuster lever toward the rear (discharge
opening) of the machine to raise the height and then

release the adjuster lever so that the adjuster pin
engages the selected hole in the bracket, Rotate the

lever in the opposite direction to lower the inlet height.

4. Be sure that both adjuster levers are adjusted to the
same height

Figure 4: Install collection bag.

NOTE: Thei'od (D) on the inlet adapter is part of the
machine's safety interlock system Make sure that the

rod fits securely in the slot in the safety interlockswitch (E).

BAG MAINTENANCE TIP: Keep the bag clean by
occasionally washing it (by hand) with mild soap and
water A clean bag improves air flow and results in

better vacuuming performance, Do not wash the bag in
an automatic washer Do not use a cleaner which

contains bleach Allow the bag to dry thoroughly before
storing,

B

Figure 5: Vacuum Height Adjustment Lever and Inlet Cap.

STEP 4: INSTALL VACUUM INLET CAP

1. Postion the inlet cap (B, Figure 5) so that the bar on
the cap is aligned with the arrow at the REMOVE
position.

-2. Twist the cap 1/4 turn clockwise which will secure the
cap in place,

11

ASSEMBLY

ASSEMBLY FOR BLOWER OPERATION

IMPORTANT: DO NOT USE THE CHIPPER IF THE
MACHINE IS SET UP FOR BLOWER OPERATION..

STEP 1: REMOVE 'THE COLLECTION BAG (IF
INSTALLED)

1o Stop the engine, disconnect the spark plug wire

from the spark p/ug, and make sure that all moving
parts have come to a complete stop.

2_ Pull and then turn the retaining knob (F in Figure 6)
so that it clears the edge of the bag inlet adapter (B) and
the tab rests on the upper housing_ Grasp the pull strap
and slide the bag inlet adapter (B) out of the slots in the

discharge opening (C).

3. Hold the collection bag (A) with the inlet opening
upright so that material does not fall out, and slide the
straps off the handlebars

4, Unzip the collection bag and empty it by shaking the
bag gently to remove all debris

1,1,,, ,,,,,,,,,,,,,,,, = L = J =LJJui,,,Jiu,i,u,,, ,,,,,,,,i,

STEP 2: ADJUST HANDLEBARS

If the handlebars are in the vacuum position, they must
be adjusted to the "blower" position for blower operation.

1. Squeeze the handlebar end (see decal "Push in
Here") toward the center of the machine and swing the

handlebars over to the front of the machine,

2. Release the handlebars ends in the "blower" notches
(A), See Figure 7.

\ \

\

A

Figure 7: Adjust handlebars to "blower" position_

STEP 3: ADJUST THE VACUUM INLET HEIGHT
For best results, adjust the vacuum inlet to its highest

position for operating the blower, Instructions for making
this adjustment are provided on Page 11.

Figure 6: Remove collection bag,

12

ASSEMBLY

STEP 4: REMOVE THE SHREDDER SCREEN

For maximum air flow, remove the shredder screen
before insta!iing the blower deflector

1. The screen (A) is held in place by two long rods (B
and C) and hair pin clips (D), See Figure 8,

2. To remove the rear rod (B), remove the hair pin clip
(D) and pull the rod out through the bottom of the deck°

3. Use sturdy supports to prop up the right side of the
machine a few inches,. Then, remove the hair pin clip
and pull the rod (C) out through the bottom of the deck,

4. Pull screen (A) out of the discharge opening, Re-
install the rods and hair pin clips on the screen for safe-
keeping_

IMPORTANT: THE HAIR PIN CLIPS SUPPLIED WITH

THE SCREEN ARE THE ONLY STYLE FASTENERS
THAT SHOULD BE USED, DO NOT USE
SUBSTITUTES OR FAILURE OF EQUIPMENT OR

PERSONAL iNJURY COULD RESULT,

5. Remove the supports from beneath unit

Figure 8: Shredder screen removal

STEP 5: INSTALL BLOWER DEFLECTOR

Position the tabs on the sides of the blower deflector (A

in Figure 9) into the slots in the discharge opening (B)
and slide the blower deflector down all the way into the
slots, Turn retaining knob (D) until the tab on the knob
drops into the slot on the blower deflector° (Reverse this
procedure when removing the blower deflector,)

NOTE: The rod (C) on the blower deflector is part of the
machine's safety interlock system, Make sure that the

rod fits securely in the slot in the safety interlock switch

(E).

STEP 6: INSTALL VACUUM INLET CAP

1. Postion the inlet cap (A, Figure 10) so that the bar on

the cap is aligned with the arrow at the REMOVE

position,

2. Twist the cap 1/4 turn clockwise which will secure the
cap in place.,

IMPORTANT: THE VACUUM INLET CAP MUST BE
iNSTALLED DURING BLOWER OPERATION,

D

Figure 9: Install blower deflector,.

A

Figure 10: Vacuum Inlet Cap installed,

13

ASSEMBLY

ASSEMBLY FOR OPTIONAL VACUUM

HOSE OPERATION

NOTE: The optional Vacuum Hose is designed for
stationary vacuuming operation only,

STEP 1: MOVE HANDLEBARS TO VACUUMING
POSITION

1. Stop the engine, disconnect the spark plug wire
from the spark plug, and make sure that all moving

parts have come to a complete stop,

2. Squeeze the handlebar end (A in Figure 11 inset with

decal "Push in Here") toward the center of the machine
to release end from the notch in the mounting bracket
and swing the handlebars up over the machine toward

the rear

3. Position the handlebar ends in the "vacuum" notches

of the brackets (B in Figure 11 inset) r

Handlebarsin Vacuum
Position

Figure 11: Handlebar position for vacuuming.

STEP 2: REMOVE BLOWER DEFLECTOR (IF
INSTALLED)

Turn retaining knob (D in Figure 12) until the tab on the

knob is out of the slot in the blower deflector,, Pull the

sides of the blower deflector (A in Figure 12) out of the
slots in the discharge opening (B) and slide the blower

deflector off the machine.

A

Figure 12: Remove blower deflector_

14

ASSEMBLY

STEP 3: REMOVE THE SHREDDER SCREEN

For maximum air flow, remove the shredder screen

before installing the vacuum hose.,
t. The screen (A) isheld in place by two long rods (B

and C) and hair pin clips (D) (see Figure 13).

2. To remove the rear rod (B), remove the collection
bag (if installed). Then, remove the hair pin clip and pull

the rod out through the bottom of the deck,

3. Use sturdy supports to prop up the right side of the
machine a few inches Then, remove the hair pin clip
and pull the rod (C) out through the bottom of the deck,

4. Pull the screen out of the discharge opening_ Re-
install the rods and hair pin clips on the screen for safe-
keeping.

IMPORTANT: THE HAIR PiN CLIPS SUPPLIED WITH
THE SCREEN ARE THE ONLY STYLE FASTENERS
THAT SHOULD BE USED DO NOT USE
SUBSTITUTES OR FAILURE OF EQUIPMENT OR

PERSONAL INJURY COULD RESULT.

5. Remove the supports from beneath the machine.

A

Figure t3: Shredder screen removal

STEP 4: INSTALL COLLECTION BAG

CAUTiOR

• Check the collection bag frequently for
deteriorationandwear and replaceworn hags.

For using the vacuum hose, install the collection bag as
described below.

1. Make sure the bag (A in Figure 14) is zipped

2. Place the collection bag straps over the handlebars,

3. Line up the tabs on the bag inlet adapter (B) with the
slots in the discharge opening (C) and slide the bag inlet

adapter down all the way into the slots, Turn the
retaining knob (F) until the tab on the knob drops into the

slot on the top of the inlet adapter,,

NOTE: The rod (D) on the inlet adapter is part of the
machine's safety interlock system, Make sure the rod

fits securely in the slot in the safety interlock switch (E).

BAG MAINTENANCE TIP: Keep the bag clean by

occasionally washing it (by hand) with mild soap and
water. A ctean bag improves air flow and results in

better vacuuming performance, Do not wash the bag in

an automatic washer Do not use a cleaner which
contains bleach, Allow the bag to dry thoroughly before

storing.

D

E

C

Figure 14: Install collection bag°

15

H, ,,i,llllllliH i i

ASSEMBLY

STEP 5: INSTALL BAFFLE PLATE

The baffle plate, which is included only with the optional
vacuum hose, concentrates the suctioning power of the
machine intothe hose by blocking the air flow

underneath the front of the machine. To instali the baffle
plate, position the plate underneath the front of the deck
and snap it into place as shown in Figure 15.

Baffle Plate Removal

To remove the baffle plate, grasp the tabs on each side
of the plate, press outward, and remove the plate

STEP 6: REMOVE VACUUM INLET CAP AND

INSTALL HOSE

1_ Remove the vacuum inlet cap (A, Figure 16) by
twisting the cap counterclockwise approximately I/4 turn
until the bar on the cap isaligned with the arrow at the
REMOVE position_ Lift the cap off the inlet opening. Do

not misplace the vacuum inlet cap.

2. Line up the tabs on the hose (B) with the slots in the
vacuum inlet opening and insert the hose.. Turn the
hose approximately t/4 turn clockwise until it is in the
LOCK position See Figure 16. (The hose support

handle should now be on the top of the hose.)

3. The machine is now properly assembled for use with
the vacuum hose1

Figure 15: Install the baffle plate.

Figure 16: Remove vacuum inlet cap and Install vacuum
hose,

16

OPERATION

KNOW YOUR CHIPPERiVAC

READ THIS OWNER'S MANUAL AND SAFETY RULES

BEFORE OPERATING YOUR CHIPPERNACo Figure

17 identifies the following key features and controls on

your machine:

(A) COLLECTION BAG: Used to collect material

resulting from vacuuming or chipping operation,

(B) ENGINE CONTROL LEVER: Used to control the
speed of the engine

(C) ENGINE PRIMER: Provides additional fuel from the
carburetor to the cylinder for use when starting a cold

engine,,

(D) AIR CLEANER: Filters dirt which could damage
engine parts,

(E) CHIPPER CHUTE: Used to process small
branches.

(F) FUELTANK: Stores engine fuel

!,1

(G) RECOIL STARTER ROPE: Used to start the
engine_

(H) BLOWER DEFLECTOR: Directs air flow when
machine is used in blower configuration.

(I) SAFETY INTERLOCK ROD: Part of the safety
interlock system which stops the engine if either the

collection bag or blower deflector is not installed.
(J) VACUUM HOSE (OPTIONAL): Used for remote

vacuuming
(K) BAFFLE PLATE: Used with optional vacuum hose°

(L) VACUUM INLET CAP: Covers vacuum hose inlet

when machine is used for walk-behind vacuming or

chipping,

(M) SPARK PLUG: Provides spark for engine ignition
(N) VACUUM HEIGHT ADJUSTMENT LEVER: Allows

adjustment of the space between the bottom of the
machine and the ground,

!

N

N

!.

Figure 17: Features and Controls,

17

BEFORE STARTING ENGINE

OPERATION

STEP t: ADD OIL TO ENGINE
1, The machine was shipped without oil in the engine

The engine requires approximately 2t ounces of oil
2, Only use high quality detergent oil rated with the

APJ. service classification of "SF" or "SG" Select the
oil's SAE viscosity grade according to your expected

operating temperature:
NOTE: Change the oi! after the first two operating

hours,. See "Changing Oil" on Page 27 in the "Customer
Responsibilities" section of this Manual.

colder-_ 32°F _ warmer

5W30 SAE 30

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

viscosity oils will result in increased oil consumption
when used above 32°F. Check your engine oil level

more frequently to avoid possible engine damage from
running low on oil,

3, With the machine on level ground, remove the
dipstick (A, Figure 18) and place it on a clean surface.

4, Using a clean funnel, slowly add oil to the dipstick

hole. While adding oil, frequently reinstall dipstick (screw
dipstick down securely) to check oil level Wipe dipstick

with a clean cloth before reinserting each time Fill to the
"FULL" mark on dipstick. DO NOT OVERFILL!

5. Reinstall the dipstick securely

DAHaER

RotatingCuttingBladesWill Cause
SeriousPersonalInjury!

Do not allow handsor any part of the bodyor clothing
inside the vacuum inlet, chipper chute, discharge

opening, or blower deflector opening when the
engineis running.

Before inspecting or servicing any part of the
machine, stop the engine and make sure that all
moving parts have come to a complete stop°
Disconnectthe spark plug wire and secure it away

from the sparkplug.

A

STEP 2" ADD GASOLINE TO THE FUEL TANK

Fill the fuel tank with fresh, clean, unleaded regular

automotive gasoline. (Leaded regular and un}eaded

premium grades of gasoline are acceptable substitutes.)

Q Do not mix oil with gasoline.
Q Do not use gasoline left over from last season or

stored for long periods,,

WARNING: Experience indicates that alcohol blended
fuels (called gasohol or using ethanol or methanol) can
attract moisture which leads to separation and formation
of acids dufing storage. Acidic gas can damage the fuel
system of an engine while in storage

To avoid engine problems, the fuel system should be

emptied before storage for 30 days or longer. Drain the
gas tank, start the engine and let it run until the fuel lines
and carburetor are empty Use fresh fuel next season°

See STORAGE instructions for additional information.

Never use engine or carburetor cleaner products in the
fuel tank or permanent damage may occur.

Figure 18: Remove dipstick to add oil to engine,

DAHGER

Gasoline is highly flammable and its vapors are
explosive° To prevent personal injury or property

damage:

• Do notadd fuel if the engine is runningor still hot
from recent operation. Allowthe engine to cool forat

leastthree minutes°

,* Do notfill the feel tank indoors. After filling.wipe
up any spills and move the machine away from
gasolinefumesbeforestartingtheengine.

• Do not allow open flames, matches, or smoking in
areao

18

OPERATION

To Add Gasoline

1, Stop the engine and wait for all moving parts to
come to a complete stop. Disconnect the spark plug

wire and secure it away from the spark plug, Allow

the engine and muffler to cool for at least three
minutes,

2. Clean area around fuel fill cap and remove cap (A in
Figure 19) from fuel tank_

3. Use a clean funnel to fill the fuel tank to 1/2 inch
below the bottom of the filler neck (to provide room for
fuel expansion).

4. Re-install the fuel fitl cap securely and wipe up any
spilled gasoline.

PRE-STARTING PROCEDURES

IMPORTANT; REVIEW THE SAFETY SECTION AND
READ THIS SECTION IN ITS ENTIRETY BEFORE
STARTING THE ENGINE,

With the spark plug wire disconnected from the spark
plug, perform the following pre-starting procedures as

required before each start-up:
[] Place the machine outdoors on level ground_

[] Make sure you are wearing safety goggles (and

heavy work gloves if using the chipper),

[] Be sure that all bystanders are at least 25 feet away

from the area of operation,

[] Check that the chipper chute, vacuum inlet, or

discharge deflector are empty (after initial use of the
machine).

Q Check that all screws, nuts, bolts, and other fasteners

are properly secured_

O Check the oi! level in the engine
Q Re-attach the spark plug wire before starting the

engine,,

SAFETYINTERLOCK SYSTEM

Figure

19: Fill fuel tank.

DANGER

To Prevent PersonalInjuryor Property Damage:
,, Cutting blades begin to rotate when the engine

starts and slow down gradually after the engine is
shut off. Do not allow handsor any other part ofthe

body or clothing inside the vacuum inlet, chipper
chute, dischargeopening,blower deflector opening,

or near anymoving part.
,, Do not runthe enginein an enclosedarea° Engine

exhaust contains carbon monoxide gas, a deadly
poisonthat is odorless,colorlessand tasteless. Do
not operate this equipmentnear buildings,windows,

or air conditioners.

Your machine is equipped with a Safety Interlock System
which prevents the engine from starting unless the
collection bag (or blower deflector) is installed. The rod
(A, Figure 20) must be positioned as shown in slot (B) in
order to start the engine..

The system also stops the engine if the operator attempts

to remove the bag or blower deflector while the engine is
running When the rod is not in place, a circuit doses to
ground out the engine

If the safety interlock system fails, shut off the engine and
do not operate the machine until the system has been
repaired, Contact your local Sears service center for

repairs,

WARNING

To avoid personalinjury or propertydamage, do not
operale this machine unless the safety interlock
systemisfunctioningproperly°

B

Figure 20: Safety Interlock System.

19

OPERATION

GENERAL OPERATION

Understanding how your machine works will help you achieve the best results when using the Chipper/Vac+ Read the
following explanation before using the machine and see Figure 21 which shows the internal workings of the

ChipperiVac_

A

(A) Chipper Chute
(B) Chipper Cutting Blade

(C) Shredder Screen
(D) Processing Chamber

(E) Fan Blade (1 of 4)
(F) Discharge Opening

STARTING THE ENGINE
1, Put on safety goggles and work gloves, Do not wear

loose fitting clothing or jewelry that can get caught in
moving parts.

2. Move the Engine Control Lever (A, Figure 22) all the
way to the right (toward rabbit position) until it stops.,

3. When starting a cold engine, firmly push primer (B,
Figure 22) five (5) times before trying to start the engine
(This step is not required when starting an engine which
has already run for a few minutes)

4+Stand at the left front of the machine Place one foot
against left front wheel to stabilize the machine,

5+ Look behind you to make sure there are no obstacles
in the way. Grasp the Starter Rope Handle (C) and pull
handle quickly. Do not alfow starter rope to snap back.,

NOTE: In cool weather, repeat pfimimg step if
necessary, in warm weather, over priming may cause

- flooding so that the engine wilt not start, If the engine is
flooded, wait a few minutes before attempting to start it

and do not repeat the priming step.

6. Leave the Engine Control Lever at the FAST (rabbit)
setting. FAST is the recommended setting for all

vacuuming and chipping operations.

F

Figure 21: Cutaway view., (Blower deflector removed for clarity,)

STOPPING THE ENGINE

1. Move the Engine Control Lever all the way to the left
(toward turtle position) until it stops.

2. Listen for all moving parts to come to a complete
stop There is an audible tone when the cutting blades
are slowing down.,

Figure 22: Starting and stopping the engine,

20

OPERATION

VACUUMING OPERATION

Vacuuming operation begins in the processing chamber
where the blades attached to the flywheel spin at up to
3600 RPM, creating a powerful suction Material enters

the processing chamber from beneath the machine
during walk-behind vacuuming and during use of the

blower deflector_ Material enters from the hose during
use of the vacuum hose, The material is then processed

CHIPPING OPERATION

Chipping operation also takes place in the processing
chamber° Branches fed down through the chipper chute

enter the processing chamber where a hardened steel
chipper blade, mounted on the spinning flywheel, slices
the material into small chips. The chips are then
propelled out from the processing chamber through the
discharge opening into the collection bag.

through the chamber (and screen if installed) and exits
from the discharge opening into the collection bag or is

propelled out through the bbwer deflector..

VACUUMING AND CHIPPING GUIDE

The chart below lists some commonly available materials that can be processed using your ChipperNac, This chart is
only intended as a general guideline For complete vacuuming and chipping operating instructions, please read this

entire Operation Section.

MATERIAL

........... L' ............ , .......

Dryleaves

Dampleaves

Acorns&pineneedles

Grassclippings

Vines

,,,,, ,, ,,,,,,,,,.........

Cornstalks

WALK-BEHINDVACUUMING

or BLOWERDEFLECTOR

,, ,, ,,,, ..... ,,,,

Yes(1)
Yes(i ,2)
Yes(2,3)
Yes(1,2)

No

No

VACUUMHOSE

Yes(2)
Yes(2)

Yes(2)
Yes(2)

No

,, ,,,,,..,,,,,

No

CHIPPER

No

No

No

,,, ,,....

No

Yes(cutintoveryshort

lengths)

Yes(cutoff root

b&{})

Smallbranches

No

No

(1-1/2" max dia)

Lightbrush

- Adiust vacuum inlet height up or down as needed for walk-behind vacuuming
2 - Remove the shredder screen to prevent clogging and improve air flow
3 - Remove screen and adjust vacuum inlet height to lowest positiono

No

No

MATERIALS TO AVOID

Q METAL

Q ROCKS .................

Q GLASS
Q PLASTIC
[] OTHER NON-ORGANIC FOREIGN OBJECTS

[] DIRT & SAND (WILL QUICKLY DULL

CHIPPER BLADE)

[] STICKS AND TWIGS (WILL CLOG VACUUM INLET

OR HOSE - PLACE IN CHIPPER CHUTE ONLY)

2t

Yes

Yes

OPERATION

WALK-BEHIND VACUUMING OPERATION

Figure23: Machine prepared for walk-behind vacuuming.

Operation

1. Prepare the unit for vacuuming by following the

assembly steps on Page 10.

2. Walk slowly behind the machine to allow the machine
to draw the debris off the ground.

3. In certain conditions it may be necessary to make two
passes over the area

4. Be sure to frequently empty the collection bag. See
Step 1 on Page 12.

5, To stop the machine, move the Engine Control Lever
all the way to the left (toward turtle position) until it stops.

6. Listen for all moving parts to come to a complete
stop. There is an audible, distinct sound produced as
the cutting blades slow down. Wait for this sound to stop
before inspecting, servicing, or changing the operating

mode of the machine

DANGER

To PreventPersonal Injuryor Property Damage:

• Cutting blades begin to rotate when the engine
starts and slow down gradually after the engine is
shut off. Do not allow handsor any other part of the
body or clothing inside the vacuum hose opening,
blower discharge opening,chipperchute,or near any
mowng parL

• Before inspecting, cleaning, or servicing the
machine, stop the engine and make sure that all

moving parts have come to a complete stop.
Disconnect the spark plug wire and secure it away

from the sparkplug,
° Toavoidpersonalinjuryor propertydamage, do not

operate this machine for vacuuming unless the
collectionbag is installed.

• Review all ofthe rules inthe Safety Section of this
Manual

IMPORTANT

SpringOperation:

Spring clean-up can be especially difficul!! Leaves
and other debris may have matted down over the

3receding months For best results when vacuuming
this type of debris: remove the screen, lower the
vacuum inlet, and walk slowly. You can even use the
machine as you would a vacuum cleaner, moving it
back and forth over particularly stubborn debris, or

loosen the debris with a few quick passes of a rake,
and then vacuum.

FallOperation:

Don't try to vacuum too much at one time! Optimum

performance is obtained when leaves are vacuumed
once a week, or even more often at the peak of leaf-

drop. Keep ahead of the leaves, tn the long run, this

is the easiest and fastest way to deal with all of your

Fall leaves-

Walk-Behind Vacuuming Tips and Hints

Q Avoid overfilling the vacuum inlet which can lead to

clogging, especially if the material is wet and soggy.
A steady, smaller flow of materials provides the most

effective results.

O Work from the outer edge of leaf piles and gradually

work inward.

13 Mow the lawn before the leaves fail to make

vacuuming easier. Keeping your lawn a bit

shorter in the Fail will help a great deal

13 Check and empty the collection bag frequently.

IMPORTANT: IF THE MACHINE ,JAMS OR CLOGS, IMMEDIATELY SHUT OFF
THE ENGINE AND DISCONNECT THE SPARK PLUG WIRE FROM THE SPARK

PLUG.. REFER TO PAGE 26 FOR SAFETY PRECAUTIONS AND DETAILED
INSTRUCTIONS ON HOW TO REMOVE JAMS AND CLOGS.

C) If possible, vacuum frequently to avoid deep piles of

leaves from accumulating on the lawn.

Q Use care when vacuuming near plantings,

ornamentals, mulches, stone or gravel..

13 Use the blower deflector to b!qw the leaves into long

ro;._s-before walk-behind vacuuming if the leaf cover
is sparse.

Q Avoid vacuuming long twigs and sticks which are

likely to jam or clog the vacuum inlet. Instead,
process twigs and sticks using the chipper chute as
described on Page 25..

22

OPERATION

VACUUM HOSE OPERATION

Figure 24: Using the vacuum hose.

NOTE: The optional Vacuum Hose is designed for
stationary vacuuming operation only,,

OPERATION

1. Prepare the unit for use of the vacuum hose by

following the assembly steps on Page 14

2. Move the machine to the vacuuming site and park the
machine on level ground,

NOTE: To avoid damaging the hose, drape the hose to

the right side of the machine when moving the machine

between vacuuming sites° Do not allow the hose to

touch the engine°

3. Use the handle attached to the hose to easily
maneuver the hose around corners, underneath bushes,

etc, See Figure 24.

4. To stop the machine, move the Engine Control Lever
all the way to the left (toward turtle position) until it stops.

5. Empty the collection bag frequently when using the

vacuum hose. See Page 12 for instructions.

6. Listen for all moving parts to come to a complete
stop. There is an audible, distinct sound produced as

the cutting blades slow down. Wait for this sound to stop

before inspecting, servicing, or changing the operating
mode of the machine

DANGER

To PreventPersonalInjuryor Property Damage:
* Cutting blades begin to rotate when the engine

starts and slow down gradually after the engine is
shut off. Do notallow handsor any olher partof the

body, or clothing inside the vacuum hose opening,
blower dischargeopening,chipperchute,or near any

movingpart.

- Before inspecting, cleaning, or servicing the
machine, stop the engine and make sure that all
moving parts have come to a complete stop.
Disconnectthe spark plug wire and secure it away
fromthe sparkplug.

,, To avoid personal injury or property damage, do not
operate this machine for vacuuming unless the

collectionbagis installed.
° Review all of the rules inthe Safety Section of this

Manual.

Tips for Using the Vacuum Hose

Q When vacuuming, move the hose slowly from side to

side,

Q To avoid clogging, do not vacuum too much material

at once Vacuum some material, let the hose
"breathe," and then vacuum some more

Q Also keep the hose as straight as possible to prevent

clogging,,

Q Do not attempt to move the machine by pulling on the

hose, This could damage the hose and cause the
machine to move unsafely

IMPORTANT: IF THE MACHINE JAMS OR CLOGS,
IMMEDIATELY STOP THE ENGINE AND MAKE SURE

THAT ALL MOVING PARTS HAVE COME TO A

COMPLETE STOP. DISCONNECT THE SPARK PLUG

WiRE AND SECURE IT AWAY FROM THE SPARK

PLUG. REFER TO PAGE 26 FOR SAFETY
PRECAUTIONS AND DETAILED INSTRUCTIONS ON
HOW TO REMOVE JAMS AND CLOGS,

23

BLOWER OPERATION

OPERATION

DANGER

To PreventPersonalInjuryor Properly Damage:
,, Cutting blades begin to rotate when the engine

starts and slow down gradually after the engine is
shut off. Do not allow hands or anyother part of the

body or clothing inside the vacuum hose opening,
blower dischargeopening, chipper chute, or near any

movingpart.

• Before inspecting, cleaning, or servicing the

machine, stop the engine and make sure that all
moving parts have come to a complete stop.
Disconnectthe spark plug wire and secure it away
fromthesparkplug.

=To avoid personal injury or property damage, keep
clear of the blowerdischarge area.. Material exits at

highspeedfromthe blower deflector.
o Review all of the rules inthe SafetySection of this

Manual.

Figure 25: Blower operation.

OPERATION
'1. Prepare the unit for blower operation by following the

assembly steps on Page 12.

2. Blower Operation begins in the processing chamber
where fan blades attached to the flywheel create a
suction which draws air from underneath the machine,

Air flows through the chamber and is propelled out
through the blower deflector.

3. To stop the machine, move the Engine Control Lever
all the way to the left (toward turtle position) until it stops.

4. Listen for all moving parts to come to a complete
stop. There is an audible, distinct sound produced as

the cutting blades slow down Wait for this sound to stop

before inspecting, servicing, or changing the operating
mode of the machine_

IMPORTANT: DO NOT USE THE CHIPPER IF THE
MACHINE tS SET UP FOR BLOWER OPERATION.,

THE VACUUM INLET CAP MUST BE INSTALLED

DURING BLOWER OPERATION,,

IMPORTANT: IF THE MACHINE JAMS OR CLOGS,
IMMEDIATELY STOP THE ENGINE AND MAKE SURE

THAT ALL MOVING PARTS HAVE COME TO A

COMPLETE STOP° DISCONNECT THE SPARK PLUG
WIRE AND SECURE IT AWAY FROM THE SPARK
PLUG REFER TO PAGE 26 FOR SAFETY
PRECAUTIONS AND DETAILED INSTRUCTIONS ON
HOW TO REMOVE JAMS AND CLOGS,

24

OPERATION

CHIPPER OPERATION

Figure 26: Using the chipper.

Feed small branches into the chipper chute Branches
are processed by the chipper blade and discharged into

the collection bag

DANGER

To PreventPersonal Injury or Property Damage:

• Cutting blades begin to rotate when the engine
starts and slow down gradually after the engine is
shut off. Do not allow hands or any otherpart ofthe
body or clothing inside the vacuum inlet, chipper
chute,dischargedeflectoror near anymovingpart.
,, Before inspecting, cleaning, or servicing the

machine, stop the engine and make sure that all
moving parts have come to a complete stop.
Disconnectthe spark plug wire and secure it away

lromthe sparkplug.
,, Do not operate the machine unless the chipper

chuteis securelyinstalled.

. To avoid a fire hazard, keep leaves, grass and

other combustib!e materials away from the engine

and muffler.
= Keepbystanders,pets, andchildrenat least 25 feet

awayfrom the machine.
° Review all of the safety rules in the Safety Section

ofthis Manual,,

1, If the machine was previously used for vacuuming, it

is correctly assembled for using the chipper, ff the

machine was used for blower operation, it must be
adjusted to the walk-behind vacuuming position

before using the chipper. See assembly steps on

Page 10.

IMPORTANT: THE CHIPPER IS tN OPERATING
MODE WHENEVER THE ENGINE IS RUNNING_ BE
SURE TO WEAR WORK GLOVES WHEN FEEDING
MATERIAL INTO THE CHIPPER CHUTE

2. Stand at the side of the machine, and carefully feed
small branches and twigs (up to 1-1/2 inch in diameter)

into the chipper chute,. See Figure 26 which shows
chipper operation,

3, Guide the branch down until your hands approach the
top of the chute Note that there is a flap at the top of

the chipper chute. NEVER PUT YOUR HANDS DOWN

PAST THE CHIPPER CHUTE FLAP.

iMPORTANT: DO NOT OPERATE THE CHIPPER iF
THE CHIPPER FLAP IS WORN OR MISSING

4. Feed the branch slowty. If the machine labors, puil
the branch upward until the engine regains speed

..... Continue to alternately feed and retract the branch until

your hands approach the top of the chipper chute and
then let go,,

IMPORTANT: iF THE MACHINE JAMS OR CLOGS,
IMMEDIATELY STOP THE ENGINE AND MAKE SURE

THAT ALL MOVING PARTS HAVE COME TO A

COMPLETE STOP° DISCONNECT THE SPARK PLUG
WIRE AND SECURE IT AWAY FROM THE SPARK

PLUG, REFER TO PAGE 26 FOR SAFETY
PRECAUTIONS AND DETAILED iNSTRUCTIONS ON

HOW TO REMOVE JAMS AND CLOGS.

5, Do not reach into the chipper chute to retrieve
material that is below the flap, if the material jams or

clogs the chute, shut off the engine, disconnect the
spark piug wire, and wait for all moving parts to stop

before attempting to retrieve the material
C3 If a branch causes the engine to stai!, merely restart.

Stalling does not harm the engine.

O Empty the collection bag frequently when using the

chipper Refer to Page 12.

6. To stop the engine, move the Engine Control Lever all
the way to the left (toward turtle position) until it stops
There is an audible, distinct sound as the cutting blade
stows down, Wait for this sound to stop before

inspecting,servicing, or changing the operating mode of

the machine.

Tips for Using the Chipper

O Before chipping a large number of branches, remove

the shredder screen for faster discharge of the chips

intothe collection bag.

_1 Whenever possible, process branches while they are

still fresh-- green wood chips more easily than dry
wood,

25

OPERATION

CLEARING JAMS AND CLOGS

WARNING

Beforeinspecting,cleaning or servicingthe machine,
stop the engine andmake sure that all moving parts
have cometo a completestep° Disconnectthe spark
plug wire andsecure it away fromthe sparkplug,

Failure to follow this instruction could result in

personalinjury,

A clog or jam can cause the vacuuming and discharging
operations to decrease or even stop completely. If this

occurs, take the following steps:

1. STOP THE ENGINE IMMEDIATELY and wait for all
moving parts to stop. Disconnect the spark plug

wire and secure it away from the spark plug.

2. Check and clean, if necessary, the following areas in
the order given_

For all vacuuming operations:

1. Check that the collection bag is not overfilled

2. While the bag is removed, check that the discharge
opening is not clogged°

For walk-behind vacuuming:

1. Check that the vacuum inlet opening is not clogged.

2. Use a stick to clear away debris.

For using the blower deflector:

1. Check that the blower deflector discharge opening is
not clogged.

2. Use a stick to clear away debris,

For using the vacuum hose:

1. Check that the hose is not clogged_

2. Remove the hose and use a long stick to clear away
any debris from the vacuum inlet opening.,

26

CUSTOMER RESPONSIBiLITiES

IMPORTANT SERVICE MESSAGE

Perform the Maintenance Schedule listed in the chart
below to ensure the proper performance and long life of

your machine.
If you do not wish to service the machine yourself, you

can bring it to your local Sears Service Center for expert
service,

MAINTENANCESCHEDULE

SERVICE Before Every25 Every100 AsNoted

CheckEngine OitLevel (Page28)
ChangeEngineOil (Page28)

ReplaceAir Filter (Page28)
CleanCooling System (Page28)
Inspect Spark Arrester (if equipped)
Inspect Spark Plug (Page28)

CleanMachine
CheckBolts and Nuts (Page29)

CAUTION

i

[

[=:t::: :_]

EachUse Hours Hours

Before inspecting, cleaning or servicing the

machine, stop the engine and make sure that all
moving parts have come to a complete stop°

Disconnectthe spark plug wire and secure it away

from the sparkplug_

Failure to follow these instructions can result in

i

personalinjuryor propertydamage.

I Every5

Hours

• T

•

ti"

tp

I
t

• [

• I

•

1,2

4

"[ 2

t 3

T

_ 2

NOTE1- Changeoilafterfirsttwo hoursofnewoperation,
NOTE2- Servicemorefrequentlyin extremelydustyordirbjconditions.
NOTE3- If engineisequippedwitha sparkarrestor,cleanandinspectfordamageevery50operatinghours
NOTE4- Replaceyearlyormereoftenif usedinextremelydustyor dirtyconditions

CHECK AND CHANGE ENGINE OIL

Q Check oil level every five operating hours and before

each use of the machine_

Q Change oil after first two hours of new operation and

every 25 operating hours thereafter, IMPORTANT:

Change oil more frequently when operating in
extremely dusty or dirty conditions,

To Check Oil Level

1. Place the machine on level ground.. Stop the engine

and make sure that all moving parts have come to a

complete stop. Disconnect the spark plug wire and
secure it away from the spark plug.

2. To avoid contaminating the engine oil with dirt, clean
the area around the dipstick (A, Figure 27). Remove the

dipstick and wipe it with a clean cloth. Screw the
dipstick fully inward and then remove it to check the oil

level,

3. The oil level should be at the "FULL" mark on the
dipstick. If the oil level is low, add recommended oil

After checking or adding oil, install the dipstick and
tighten securely.

Figure 27: Dipstick (A) and oil drain plug (B),

27

CUSTOMER RESPONSIBILITIES

To Change the Oil

1, Change the oil while engine is still warm from recent
operation. Stop engine and make sure that all

moving parts have come to a complete stop.
Disconnect spark plug wire and secure it away from

spark plug.

2. The oil drain plug (B in Figure 27 on Page 27) is
located at the bottom of the dipstick tube,.

3. Prop up the wheels on the opposite side of the
machine so that the oil drain plug is at the lowest point

on the engine,

4o To prevent oil from spilling on the machine, make a
V-shaped drain trough out of aluminum foil or stiff
cardboard and place the trough beneath the drain plug,

5. Remove the dipstick (A, Figure 27) to vent the

crankcase and speed up draining time

6. Remove the oil drain plug (B, Figure 27). After the oil
has drained, install the oil drain plug and tighten
securely

7. Refill the engine crankcase with recommended oil

described below. After adding oil, securely replace the

dipstick (A) and clean up any spilled oil

cotder,._ 32°F----------_ - warmer

5W30 SAE 30

SLOT

Figure 28: Air cleaner assembly.

CLEAN COOLING SYSTEM

To ensure adequate cooling of the engine, air must
circulate freely through the air intake screen (A in Figure

29) and over the cooling fins (B)..

After every 5 operating hours, clean the air intake screen

and the cooling fins to remove any chaff, dirt and debris.

SERVICE THE AIR FILTER

The engine is equipped with a paper element air filter_

See Figure 28
IMPORTANT:

. NEVER RUN ENGINE WITHOUT COMPLETE AIR

FILTER ASSEMBLY INSTALLED.

* REPLACE FILTER ONCE A YEAR, OR MORE OFTEN

IF USED IN EXTREMELY DUSTY OR DIRTY

CONDITIONS.

- DO NOT ATTEMPT TO CLEAN OR OIL FILTER..

o REPLACEMENT FILTERS ARE AVAILABLE FROM
ANY SEARS ROEBUCK AND CO (OR SEARS

CANADA, INC.) SERVICE CENTER.

To Replace Air Filter
1, Stop engine and make sure that all moving parts

have come to a complete stop. Disconnect spark .

plug wire and secure it away from spark plug;

2. Turn cover to the left (counterclockwise) and remove

cover and filter from flange Discard filter. See Figure 28.

3. Clean cover and flange thoroughly.

4. Position cover and filter against flange with tab on
cover inserted into lower left corner of slot in flange°

5. Push cover firmly against flange and turn it to the
right (clockwise) as far as it will go. Be sure retainers

are locked around flange

Figure 29: Air intake screen and cooling fins.

INSPECT THE ENGINE SPARK ARRESTER
(IF SO EQUIPPED)

If the muffler on the engine is equipped with a spark
arrester screen assembly, remove the assembly every

50 hours of operation for cleaning and inspection.

Replace a damaged assembly,

SERVICE THE SPARK PLUG

Check the spark plug yearly or every 100 operating
hours. Replace the spark plug if the electrodes (Figure
30 on Page 29) are pitted or burned, or if the porcelain is
cracked. Use a Champion J-19LM, Autolite 458, or

equivalent In Canada, replace with a resistor spark

plug..

28

CUSTOMER RESPONSIBILITIES

Check The Spark Plug
1, Stop the engine and make sure that all moving

parts have come to a complete stop. Disconnect the
spark plug wire and secure it away from the spark

plug.

2, Clean the area around the spark plug to prevent
debris from falling into the spark plug hole_

3, Remove and inspect the spark plug. Check the
electrode gap with a wire feeler gauge and set the gap at

_030", if necessary.

4, install spark plug and tighten securely

CARBURETOR AND IGNITION SYSTEM

INFORMATION

O The factory-adjusted carburetor settings should be

satisfactory for most conditions. If you feel that an
adjustment is needed, contact your Iocal Sears

Service Center or retail store

[] The engine is equipped with an electronic ignition

system without points and a condenser. Only spark

plug maintenance is required. If the ignition system is
not functioning properly, contact your local Sears

Service Center or retail store.

Electrodes

.030 Gap...,,, \

Figure 30: Spark plugo

Porcelain

CHECK BOLTS AND NUTS FOR TIGHTNESS

Be sure that the bolts and nuts on your machine are
always securely tightened. With the engine shut off
and the spark plug wire disconnected, check the bolts

and nuts before each use of the machine.. Refer to the

Parts List at the back of this Manual for replacement
hardware_ Do not overtighten bolts. See the Torque
Specifications Chart on Page 31.

LUBRICATION

With the exception of the engine, the machine is lifetime
lubricated Do not oil or grease any part of the machine.

CAUTION

Do not tamper with the engine governor which is
factory set for proper engine speed_ Overspeeding
the engine above the factory highspeed setting can

be dangerousand will void the enginewarranty.
Requestauthorizedservice if the problempersists_

29

SERVICE AND ADJUSTMENTS

REPLACE THE CHIPPER CUTTING BLADE

Over time, the chipper cutting blade edge (A in Figure 33

on Page 31) will dul!. Sharpen or replace the blade
when the chipper no longer cuts efficiently,

_3

Discard a cracked or severely nicked blade because

the blade could break apart and cause personal

injury.

E3

We recommended thatyou takethebladetoa

professional sharpening service for expert
sharpening,, All grinding must be flat and uniform
along the beveled edge of the blade to maintain the
original 45 o cutting angle. Sharpen a blade that is

dull or that has only minor nicks. The blade is made
from tempered steel and is extremely hard - do not

attempt to sharpen with a hand file

iMPORTANT: Do not reuse the blade mounting screws
and locknuts. New screws and tocknuts are supplied

with a new blade Use only factory-supplied

hardware. Do not use substitutes or failure of the

equipment or personal injury could result. See the

Parts List at the back of this Manual to order individual
replacement screws and Iocknuts if re-installing the old

blade.
To Remove and Replace the Blade

1, Stop the engine and make sure that all moving

parts have come to a complete stop. Disconnect the
spark wire and secure it away from the spark plug.

2. Remove the collection bag or the blower deflector,
3o The blade removal procedure requires removal of the

engine. To avoid a potential safety hazard from spilled
gasoline, the fuel tank must be emptied of alt gasoline
before the engine is removed, Follow Steps "a" through
"d" to empty the fuel tank,

a. Place a clean pan below the fuel tank to catch the

gasoline as itdrains Remove gas cap from fuel tank,

d. Re-install the fuel line on the fuel tank fitting and

secure it in place with the hose clamp. Install gas cap
on fuel tank.

FuelTank

Figure 31: Hose clamp and fuel line.

4. With a 3/8" wrench, remove the three bolts that
secure the engine mounting base to the deck. One bolt

is shown in Figure 32. A second bolt is located at the
rear of the machine above the left side of the blower

opening. This second bolt also secures the short wire
leading to the safety interlock,. Remove the wire and the

Iockwasher along with this bolt. Also, disconnect the
long safety interlock wire where it attaches to the engine
above the engine muffler, A third bolt is located near the

right front wheel

5. Remove the two hair pin clips on the right side and
rear of the housing which secure the shredder screen
rods, and then remove the rods and shredder screen,

6, Slide the engine forward (in direction of the spark
plug) and carefully lift engine out of chassis., Gently
place the engine on a clean floor or workbench with the
spark plug side facing up.

WARNIH8

To avoid personal injury, handle chipper cutting
blade with extreme care,, The cutting edge is very

sharp°

DANSER

Gasoline and its vapors are highly flammable and
explosive.

To avoid serious personal injury, be sure area is
well ventilated and keep gasoline away from open
flame or sparks, Observeno smoking rules at atl
times_ Use anapprovedfuelconlainer.

b. Using adjustable pliers, squeeze the tabs on the

hose clamp (A in Figure 31) that secures the fuel line
(B) to the fuel tank fitting. Slide the clamp a few

inches down the fuel Iine.
c. Pinch the fuel line with your fingers to prevent

gasoline from leaking and then gently pull the fuel line
off the fuel tank fitting Drain the gasoline into the pan
and then transfer the gasoline to a container
designed for fuel storage,

Figure 32: Engine mounting bolts.

3O

SERVICE AND ADJUSTMENTS

7, The chipper cutting blade (A in Figure 33) is mounted

on the upper side of the flywheel assembly (B). AVOID
CONTACT WITH THE BLADE AS IT tS EXTREMELY

SHARP! To remove the blade, first remove the flywheel
assembly as described below:

a. Rotate the flywheel assembly until the cutout (C)
in the flywheel assembly is located below the chipper
chute, To prevent the flywheel assembly from
turning, place a 1/2" or thicker wood dowel down the
chipper chute through the cutout. See Figure 33.

b, Using a box end 9/16" wrench, remove the
bolt (D) and concave washer (E) Carefully slide the
assembly off the crankshaft Do not lose the key (F),
or any shims (G), NOTE: Shims (if used) may be

inside bore of flywheel assembly, See Figure 33

8. With a 3/16" hex key (Allen) wrench and 1/2" box
wrench, remove the two Iocknuts (I) and screws (H) that
secure the blade to flywheel assembly., If necessary,

first clean out the socket holes in the screw heads with a
sharp nail or awl, See Figure 33

9. Before installing a new or resharpened blade,
thoroughly clean the area where the blade seats on the
flywheel assembly (also clean the old blade, if it is being
reused).

10. Position the blade on the upper side of the flywheel

assembly, with the sharp edge of the blade on top,

Install two new screws down through the blade and add

new focknuts_ Use only factory-supplied hardware.
Do not use substitutes or equipment failure or

personal injury could result. Tighten securely (torque

to 240 lbs-in or 20 Ibs-ft)

11. Place key (F) in the engine crankshaft and re-install
any shims (G). Align the keyway in the bore with the key
on the crankshaft and slide the flywheel assembly into

place

12. Place the concave washer (E [dished-in side of
washer faces flywheel assembly]) on the mounting bolt

(D) and install the bolt in the crankshaft. Tighten
securely (torque to 204 Ibs-in) Remove the wood dowel

from the chipper chute

13. Replace the engine in the chassis, with the spark

plug side facing the front (toward Inlet Cap)

14. Install the short safety interlock wire terminal and

the lockwasher on one of the mounting bolts and install it

at the rear of the machine above the left side of the
blower opening. Connect the long interlock wire to the

terminal above the muffler. Replace the other two

mounting bolts and tighten all three bolts to 60-65 Ibs-in.
DO NOT OVERTIGHTEN BOLTS OR DAMAGE COULD

RESULT TO HOUSING

15. install shredder screen in housing, insert screen
rods, and secure with hair pin clips.

16. Replace the collection bag or blower deflector and
reposition the handlebars in the correct operating
position for vacuuming or blower operation°

Figure 33t Chipper cutting blade removal/replacement,

TORQUE SPECIFICATIONS

BoltSize Torque(Ibs-in) Locationof Bolt(s)

5/16"-t4 60-65]Bs-in 1 Enginemountingplatetohousing

40-55Ibs-in 2 Handlepivotbracket
40-55tbs-in 3 Upperhousingtolowerhousing

5/16"-24 240tbs-in 1.Chipperknifeto fanassembly.
3/8"-t6 180lbs-in 1 Wheelballs

2. Handlebarstopivotbrackets.

3/8"-16 276lbs-in 1. Enginemountingplateto engine
3/8"-24 204lbs-in 1 Fanassemblytoengine

31

STORAGE

OFF-SEASON STORAGE

DANGER

ToPrevent Personal injuryor Property Damage:

* Never perform maintenance while engine is

runningor when sparkplug wire is connectedto spark
plug, exceptwhere specifically instructedto do so.

,, Never store machine with fuel in the fuel tank
inside a building where fumes may reach an open

flame or spark, orwhere ignitionsourcesare present
such as hot water and space heaters, furnaces,
clothesdryers,stoves,electric motors,etc_

NOTE: A yearly check-up by your local Sears Service
Center is a good way to ensure that your machine will
provide maximum performance for the next season.

1. Review the "Customer Responsibilities and Storage"
safety rules in the Safety Section of this Manual

2. To prevent engine damage (if the machine is not
used for more than 30 days) follow the steps below:

a. It is important to prevent gum deposits from

forming in essential fuel system parts such as the
carburetor, fuel filter, fuel hose or tank during

storage, Also, experience indicates that alcohol
blended fuels (called gasohol or using ethanol or
methanol) can attract moisture which leads to
separation and formation of acids during storage
Acidic gas can damage the fuel system of an
engine while in storage.,

b. To remove gasoline, run the engine until the tank

is empty and the engine stops.

c. If you do net want to remove gasoline, a fuel

stabilizer (such as Craftsman Fuel Stabilizer No

335500) may be added to any gasoline left in the
tank to minimize gum deposits and acids If the
tank is almost empty, mix the stabilizer with fresh

gasoline in a separate container and add some to
the tank. ALWAYS FOLLOW INSTRUCTIONS

ON THE STABILIZER CONTAINER, THEN, RUN
THE ENGINE AT LEAST 10 MINUTES AFTER

THE STABILIZER IS ADDED TO ALLOW

MIXTURE TO REACH CARBURETOR. STORE

THE MACHINE IN A SAFE PLACE SEE

DANGER ABOVE

d. Change the oil ifit has not been changed in the

last three months, See Page 28

e. Lubricate the piston/cylinder area,, First, remove

the spark plug, Then, squirt approximately '1/2
ounce of clean engine oil into the spark plug hole_

Cover the spark plug hole with a rag to absorb oil

spray and then rotate the engine by pulling the
starter rope two or three times. Finalty, re-install

the spark plug.

f. Clean the engine by removing any dirt, chaff or

other debris from its exterior.

3. Thoroughly clean the machine, collection bag, hose,
and blower deflector.

4. Check that all hardware is in place and securely
fastened. Refer to the Parts List in this Manual for

replacement hardwarer

5. Inspect all visible moving parts for damage,
breakage, and wear_ Repair or replace as needed (refer

to Parts List).

6. Touch up paint on all chipped or scratched surfaces
to prevent rust from forming.

7. If possible, store machine indoors (see DANGER
statement on this page) Cover machine for protection
from dust and dirt. Use a covering (not plastic) that does

not retain moisture, Be sure the engine and muffler are

cool before covering the machine,

32

TROUBLESHOOTING POINTS

Before performing any of the corrections in this Troubleshooting Chart, refer to the appropriate information
contained in this Manual for the correct safety precautions and operating or maintenance procedures.

PROBLEM !

EngineDoesNot Start

EngineRunsPoorly

POSSIBLE CAUSE

1 Spark plug wire disconnected
2, Engine Control Lever in OFFposition
3 Fueltank empty
4 Stale gasoline
5 Safety Interlock switch hasfailed
6 Collection bagor blower deflector not installed
7 Incorrect Control Lever setting

8, Dirty air filter

9, Defective orincorrectly gappedspark plug

t0 Carburetor out of adjustment

t Badsparkplug

2 IncorrectEngineControlLeversetting

3 Dirtyairfilter

4 Carburetorout of adjustment

5 Stalegasoline

6, Dirtor waterinfueltank

7 Enginecoolingsystemclogged

CORRECTION

1 Reconnectwire
2 Put EngineControl Lever in START(Page 20)
3 Add gasoline (Page 19)

4 Drain gasolineand add fresh gasoline
5 Contact SearsService Center

6 Install collection bag or blower deflector
7 Put Controt Lever in START(Page20)
8 Replacefilter (Page28)
9 Inspect spark plug (Page28)

10 ContactSearsService Center

! Replacespark ptug (Page29)
2 Put Lever in correct setting (Page 20)
3, Replacefilter (Page28)

4 Contact Sears ServiceCenter
5 Drain gasoiine and addfresh gasoline

6 Contact Sears ServiceCenter
7 Clean air intakescreen andcooling fins

(Page28)

Engine Overheats

Chipper Does Not Chip

ChippingPerformanceIs
Poor

1 Enginecooling system clogged

2 Carburetor out of adjustment
3 Oil level is tow

t Solidobjectjammedin unit

2 Brokenor missingchipperblade

I LDull chipper blade
2, Engine not reaching full RPM
3 Excessivelyworn engine shaftbearing(s)
4 Loose engine mounting bolts
5, Chipper bladeto anvil clearanceincorrect

1

Cleanair intakescreen and cooling fins
(Page28)

2

ContactSearsService Center

3

Checkandaddoil(Page27)

1 Checkfor andremoveanyobstruction

(Page26)

2. Replaceblade(Page30)

1 Sharpenor replaceblade(Page30)

2 ContactSearsServiceCenter

3, ContactSearsServiceCenter

4 Tightenbolts(Page29)

5: ContactSearsServiceCenter(correct

clearanceis 030"-090")

33

TROUBLESHOOTING POINTS

PROBLEM

LossofVacuum

UnusualVibrationor Noise

POSSIBLECAUSE

1 Vacuuminletorvacuumhosec_ogged, 1

2 Collectionbagfull 2

3 Dischargeopeningclogged 3

4 Processingchamberclogged 4

5. Enginenotreachingfull RPM 5

1. Solidobjectjammedinunit 1

2, Chipperbladelooseor damaged, 2,
3 Rotorassemblyoutofbaiance, 3
4 Chipperbladetoanvilclearanceincorrect 4

5 Enginecylindershaftorcrankshaftisbent 5

or damaged
6 Looseenginemountingbofts 6
7, Looseor m{ssingboltsonunit, 7

8, Engineshaftbearingsdamaged 8

CORRECTION

Checkforandremoveanyobstruction

(Page26)
Removeandemptybag(Page12)

Removecollectionbagto clean
opening(Page12)

Checkfor andremoveany obstruction

(Page26),
See"EngineRunsPoorly"atbeginning

ofchart,

Checkforandremoveanyobstruction
SeePage26.

Tightenor replace(Page30)
ContactSearsServiceCenter

ContactSearsServiceCenter(correct
clearanceis 030"-,090")

ContactSearsServiceCenter

Tightenbolts(Page29)
Tightenor replacebolts(Page29)

ContactSearsServiceCenter

34

ROTATINGCUTTINGBLADESANDTHROWN

OBJECTSWit,L CAUSESERIOUSINJURY!

• KEEPCLEAROF DISCHARGEOPENINGAT ALLTIMES,
= DONOTOPERATEWITHOUTCOLLECTIONBAGOR

BLOWERDEFLECTORINSTALLED_

• DONOTOPERATEtF SAFETYINTERLOCKIS BROKEN

ORBECOMESDEFECTIVE.SEE OWNER/OPERATOR

_.MANUAL __ ,,, i

DECALS

ROTATINGCUTTINGBLADESWILL

CAUSESERIOUSINJURYf

INLETCAPORHOSE MUSTBEINSTALLED°

HOT SURFACES

CAN CAUSE

SEVERE BURNS

DO NOTTOUCH

MUFFLEROR

ADJACENTAREAS.

DISCHARGEOPENINGTOAVOIDSERIOUSINJURY.

ROTATINGCUMNG BLADE

WILL CAUSESERIOUSINJURY!

KEEPHANDS OUT OF

CHIPPER CHUTE INLET ATALL TIMES.

n

35

CRAFTSMAI!5 HPCHIPPER/VACMODELNUMBER987.799601 REPAIRPARTS

89"_

4O

©

57

12 i

8 i

I

o i

65

t

I

I
t
I

I

36

CRAFTSMAN5 HP CHIPPER/VACMODELNUMBER987.799601 REPAIRPARTS

REF PART

No_ No. DESCRIPTION QTY.

12143,955002"

1762042

4 1763390
5 1763255

6 1104338
7 1100010

8 1756993
9 1185831

11 1763261

12 1763262001
13 1763265

15 1763367

16 1763356

19 1763391
20 1100350
21 1890234

22 1763268001
23 1768668001

24 1763767
25 1731025

26 1107382

27 1768670001

28 1763331

30 1769062

33 1767422

35 1764197

38 1805368

39 1747138

40 1764179

41 1763257

42 1764189

43 1764439

44 1768720

45 1763288

46 1763289

47 1763290

49 1768722

50 1763294

51 1768724

53 1900333

Engine,5HP............................ '1

Thread-FormingScrew

318-16x 1" ........................... 3

FlangeScrew,5/16q3 x 1" ............ 13

FanandChipperDiscAssy............... 1

Key,114x 1/4x 2" ...................... 1

Capscrew,318-24x 1-1/4" .......... 1

ConicalWasher .......................... 1

Washer ............................... 4

Inlet Housing....................... I

DividerPlate........................... l

WheelandTireAssy.................. 4

ShoulderScrew ......................... 2

FlatWasher......................... 2

RearAxle............................ I

CotterPin,tt8 x 1L.................... 2

FlatWasher,1/2" .................... 6

UpperHandle.............................. 1

LowerHandle........................... 1

Knob ..................................... 2

CurvedHeadBolt ...................... 2

FlatWasher,5/16° ..................... 2

WheelandHandlePivot(left side only) l
ShoulderScrew,3/8-16 (left sideoniy) 1

Elbow.................................... 1

IgnitionGroundSwitch..................... 1

SwitchTab............................ 2

FiatWasher,9/64x 5116............... 4

PopRivet,1t8 x 3/8 .................... 4

ChipperTubeFlap...................... 1

OperatingInstructionsDecal........... 1

CableTie.................................. 1

PopRivet,118x3t5 .................... 2

LogoDecal................................... 1

DangerDecal............................... 1

WarningDecal ................................. 1

DangerDecal.................................. 1

BagDecal..................................... 1

DangerDecal.............................. 1

HandlebarDecal......................... 1

Madein US A Decal ................... 1

REF PART
No. No. DESCRIPTION QTY.

54 1756954

57 1763263
59 1761627

60 1763393
61 1763392

62 1186259
63 1737499

64 1100047
65 1893445

66 1107383
67 1733398

79 1764076
80 1756986

83 1764649
86 1186309

87 1734398
88 1728401

89 1765507
96 1769136001

97 1768703
98 1768655

99 1185748

100 1769123
101 1115958

200 1769635

201 1769649

205 1769633

206 1769654

207 1769637

208 1767298
209 1902079

b/" 1902963

Goggles.............................. t

HoseCapInlet ......................... 1

HeightAdjusting Lever.............. 2

WheelHeightAdjustingQuadrant.... 2

WheelMountingArm .......... 2

Jam Nut,3/8-16....................... 2

Grip................................................... 2

HexScrew,3/8-16x 1-1/2" ......... 4

FlatWasher.......................... 6

FlatWasher,3/8" ............... 2

ToplockNut, 318-t6 .................. 4

ScreenRod............. 2

HairPin.................... 2

Bracket......................... 1

FlangeScrew,1/4-20x 5/8" ...... 2

TopiockNut, 114-20 ............ 3

Loctite242 ....................... Nil

Pop Rivet,1/8 x 1/2 ........... 2

HandleSupport (right side only)...... 1

ShoulderScrew(right sideonly) ..... 1

RetainingKnob................ 1

WaveWasher................ 1

HandleAdjustmentDecal......... 1

MachineScrew, RoundHead,

114-20x 1-1/2" ............... 1

CollectionBagKit, (includes

Ref No's 30,35, 38,39 &42) 1

BladeKit(includesRef_No's

202,203 & 204- seebelow) ..... t

UpperHousingKit(includes

Ref No's 33,41, 43,44, 50, 51,

53,57,83,87,98, 99,& 101) .... 1

EngineMountingPlateKit

(includesEnginePlateAssembly,and

Ref No's 40,45 &89) .......... 1

DeflectorKit (includesDischargeDeflec-

tor, andRef No's 35, 38,39 & 47)

ShredderScreenKit................... 1

SprayPaintCan,Black,13oz ........ Nil

ChipperNacOwner'sManual ........ 1

Nil Partnot includedwith unit.Orderseparatety.
* Orderpartsfrom yourlocal SearsServiceCenter,Referto enginefor modelandtype number

BLADEKIT NO, 1769649

REF PART

No. No. DESCRIPTION QTY_

202 1763742 ToplockNut,5/16-24.................. 2

203 1763741 FlangeScrew,5/16-24................... 2

204 "* ChipperKnife .............................. 1

** Not soldseparately

37

_._ 204

t ;,:):.

282_-

_.._203

e&

CRAFTSMAN4-CYCLEENGINE : MODELNO. 143,955002

276",-._. ,

277,A.,_ _=._'_

400

130

MODELandSERIALIZe.

NUMBERSHERE

135

120

119

125

126

11287

260

.262

7-301

370

" 292

29O

I_'_ 292

-7

241_

38

CRAFTSMAN4-CYCLEENGINE MODELHO,143.955002

Ref. #

....... 1

12

12B

14
15

16
17

18

19
20
30
40
40
40
4t

41

41

42

42

42

43

45

48

48

50

52

69

70

72

72A

73 l

75

80

81

82

83

56
89
90
92
93

100
101
103
110

119 "
120
125
125

126
126
130
135

Part #

36478A
26727

2
6

33734

7

36557
36558
34695
28277
30589
31383A

31335
650548
36281
32600
36231
36073
36074
36075

36070
36071
36072
36076
36077
36078
20381
30963B

32610A
27241

35992
29914
35261
36249A
30572
28534
28833
27897
30574A

30590A
30591
30588A
650488
611004

611112
650815
650816

34443A
610118
650814
36230
36477
36476
36471
36472

29314B
29315C
6021A
35395

Cylinder (Incl, 2, 7, 20 & 125)
Dowel Pin

Breather Element
Breather Body Ass'y (lnct 6 & 12)

Breather Cover & Tube (Incl. 12B)
Breather Tube Elbow
Washer

Governor Rod (Incl. 14)
Governor Lever

Governor Lever CIamp
Screw, 8-32 x 5/16"
Extension Spring

Oil Seat
Crankshaft

Piston, Pin & Ring Set (Std)

Piston, Pin & Ring Set (.010" OS)
Piston, Pin & Ring Set (.020" OS)
Piston & Pin Ass'y (Std.) (lncl. 43)
Piston & Pin Ass'y. (.010" OS) (Inc[ 43)
Piston & Pin Ass'y (020" OS) (Incl 43)
Ring Set (Std)
Ring Set (O10" OS)
Ring Set ( 020" OS)
Piston Pin Retaining Ring
Connecting Rod Ass'y (Incl 46)
Connecting Rod Bolt

Valve Lifter
Camshaft (MCR)

Oil Pump Ass'y
Mounting Flange Gasket
Mounting Flange (lncl 72 thru 83)
Oil Drain Plug
Oil Drain Plug
Drain Plug Gasket

Oil Seal
Governor Shaft

Washer
Governor Gear Ass'y ([ncl. 61)

Governor Spool

Screw, 1/4-20 x 1-1/4"
Flywheel Key

Flywheel
Be!leviIle Washer

Flywheet Nut
Solid State Ignition
Spark Plug Cover

Screw, Torx T-15, 10-24 x 1"
Ground Wire

Cylinder Head Gasket
Cylinder Head

Exhaust Valve (Std) (lncL 151)
Exhaust Valve (1/32" OS) (]ncl 151)

intake Valve (Std) (lncL 151)
Intake Valve (1/32" OS) (Inc[ 151)

Screw, 5/16-18 x 1-1/2"
Resistor Spark Plug (RJ19LM)

Part Name

tef.

150
t51
169

172
174
178
t79
182
184
185
186

200
202
203
204
205
206
207
2O9

215
223
224
238
239
241
245
25O
260

261
262
275

-_75A
276
277

__77t,

285
287
290
292

300
301
306
306
307
309
310

313
327
370

370#

38O
39O
4OO

Part #

35991
31673
27234A
32755
30200
29752
30593
6201
26756

31384A
34337
35727
36482
31342
650549
650777
610973
34336

30200
32410
65O451
34690A---
650932
34338
35797
35066

35065

36420A

30200

650831
36456A
36424
33753
650986

650795
35000A

650926
34357

26460_......._

35586
35355
35647
34265

35499
650562
35648
34080
35392
35169
36261

632670

590732
36481*

Part Name

Valve Spring
Valve Spring Cap
Vaive Cover Gasket

Vaive Cover
Screw, 10-24 x 9/16"
Nut & Lock Washer, 1/4-28

Retainer Clip
Screw, 1/4-28 x 7/8"

Carburetor To intake Pipe Gasket
intake Pipe (Incl 224)

Governor Link
Control Bracket (lncl, 202 thru 206)

Compression Spring
Compression Spring

Screw, 5-40 x 7/16"
Screw, 6-32 x 21/32"

Terminal
Throttle Link

Screw, 10-24 x 9/16"
Control Knob

Screw, 1/4-20 x 1"

Intake Pipe Gasket

Screw, 10-32 x 49/64"
Air Cleaner Gasket
Air Cleaner Collar

Air Cleaner Filter
Air Cleaner Cover

Blower Housing

Screw, 10-24 x 9/t 6"

Screw, 1/4-20 x 1/2"

Muffler (Incl 277)

Spark Arrestor Muffler (Optional)

Locking Plate (Optional)

Screw, 1/4-20 x 2-5/16"

Screw, 1/4-20 x 2-1/4" (Optional)

Starter Cup

Screw, 8-32 x 21/64"

Fuel Line
Fuel Line Ciamp

Fuel Tank (Incl 292 & 301)
Fuef Cap

Oil Fill Tube

"O"-Ring

"O"-Ring

Screw, 10/32 x 1/2"
Dipstick
Spacer
Starter Ptug

Control Decal ........

Lubrication Decal
Carburetor (Incl. 184)

Rewind Starter
Gasket Set (lncl items marked PK innotes)

39

CRAFTSMAN5 HP CHiPPER]VACMODELNUMBER987.799601 REPAIRPARTS

CARBURETORNO. 632670 (Fig. 1)

[_ef.

t

2
4

5

6

7

16
25

27
28
29

30
31
35

35A
40
44
48

Part

No,

631615

631767
631184
631183
632504
650506
631775
631867

631024

632O19
631028,_

631021 ,
631022

632694
632647

632503

27110
631027

Part Name

Throttle Shaft & Lever Assembly
Throttle Return Spring

Dust Seal Washer
Dust Seal (Throttle)

Throttle Shutter

Shutter Screw
Fuel Fitting

Float Bowl
Float Shaft

Float

._FloatBowl "O" Ring

Inlet Needle, Seat & Clip (lncl, 3t)
Spring Clip

Primer Bulb/Retainer Ring

Primer Bulb Filter
High Speed Bow] Nut

Bowl Nut Washer
Welch Plug, Atmospheric Vent

HOSEKIT NO. 987.856790 (Fig. 3)

REWINDSTARTERNO. 590732 (Fig. 2)

Ref.

No.

1
2
3
4
5
6

7

8

11

12
13

Part

No.

590599A
590600

590696
590601

59O697
590698
590699
590618A
590695

590535
590701

Part Name

Spring Pin (lncl 4)

Washer

Retainer

Washer

Brake Spdng
Starter Dog

Dog Spring

Pulley & Rewind Spring Assyo

Starter Housing Assy

(40 degrees grommet)

Starter Rope (Length 98"x 9/64" dia)
Starter Handle

3

Ref.

INo, ........

U°

Part

Noo Part Name

1767377

1765866

1763291

1763281001
1756875

1763283001
1740083

tlO0123
1186389

1107381

Hose
Tube

Hose Adapter
Handle

Handle Grip

Inlet Cover

Worm Clamp

SLotted Head Screw, I/4-20 x 1-1/4"
Flange Whiz Locknut, 1/4-20

Washer

t

:_-g

Figure I

Figure 2

Figure 3

40

NOTES

41

NOTES

42

NOTES

43

CRRFrSMRN®

OWNER'S

UAL

MODEL NO.

987.799601

5 Horsepower

CHIPPER/VAC

with Wheel Adjusters

Each Chipper/Vac has its own model number_ Each

engine has its own model number.

The model number for your machine will be found on the

left side of the unit.

The model number for the engine will be found on the

engine's blower housing above the spark plug.

All parts listed herein may be ordered through Sears,
Roebuck and Co. Service Centers and most Retail Stores.

WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE
FOLLOWING INFORMATION:

IF YOU NEED

REPAIR SERVICE

OR PARTS:

FOR REPAIR SERVICE
CALL THIS TOLL FREE

NUMBER:

1-800-4-REPAIR

(1-800-473-7247)

FOR REPLACEMENT

PARTS INFORMATION AND

ORDERING, CALL THIS

TOLL FREE NUMBER:

1-800-FON-PART

(1-800-366-7278)

• PRODUCT- "CHIPPERNAC"

• MODEL NUMBER - 987.799601

, ENGINE MODEL NUMBER - 143.955002

° PART NUMBER

° PART DESCRIPTION

Your Sears merchandise has added value when you
consider that Sears has service units nationwide staffed

with Sears trained technicians._professional technicians
specifically trained on Sears products, having the parts,

tools, and the equipment to insure that we meet our
pledge to you, we service what we sell,

Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.

FORM 1902963 (11/94) Printed in U,SA.