Craftsman 636.796912 User Manual

owner's

manual

MODEL NO.

636.796912

CAUTtON:

Read Rules for

Safe Operation and Instructions

Carefully

6619501201

6619501201 iV88

I:RRF[$MRtl

37°7 cc (:;ASPOWERBLOWER

o Assembly • Maintenance oOperation • Repair Parts

Sears, Roebuck and Co., Chicago, IlL 60684 U.S.A.

PR|NTED IN JAPAN

TWO YEAR LIMITED WAF_RANTY ON CRAFTSMAN

POWER BLOWER 636,796912

For two years from data of purchase, when this POWER BLOWER is maintained° lubricated, and tuned up according to the operating and maintenance instructions in the owner's manua], Sears will repair free of charge any defect in material or' workmanship.

This warranty exctudas _alower pipes, spark plug, and air cteaner; which are expandable parts and become worn during

normal use. If this POWER 8LOWER is used for commercial or rental purposes, this warranty applies for only 30days from the date

of purchase. WARRANTY SERVICE tS AVAILABLE BY CONTACTING THE NEAREST SEARS SERVICE CENTER/DEPART-

MENT IN THE UNITED STATES, This warranty applies only while this product is in usa in the United St0tes,

This warranty gives you spectflc legal rights, and you may also have other rights which very from state _o state,

SEARS, ROEBUCK AND CO.

DEPT, 698/731A

SEARS TOWER

, CHICAGO, 1LLINOIS 60684

INTRODUCTION

The Sears Power Blower, Model 636.796912 is a lightweight, high performance 2 cycle two stroke,

gasoiine powered blower, which is designed for autumn leaves, driveway and sidewalk sweeping, gutter

cleaning, light snow and debris removal. The blower works faster' and more efficiently than rakes or brooms. Excellent balance, a vibration damping system and light weight ensure comfortable, safe

and fatigue-free operation. This manual provides instructions for assembly, operation and maintenance for your' unit. Be sure to

read this manual before operation.

IMPORTANT

RULES FOR SAFE OPERATION

1. Gasoline (t) Handle gasoline with care. it is high inflammable°

(2) Use proper' gasoline-oil fuel mixture° See P, 4. (3) Refuel before starting work.

(4) Do not refuel a hot engine. (5) Avoid spilling fuel or oil. Always wipe unit dry before using°

(6) Move at least 3 meters (10 feet) away from the fueling point before starting engine. (7) Always store gasoline in approved container'.

2. Operation (1) Do not operate in unventilated area,

(2) Do not allow bystanders in work area. (3) Always wear light clothing.

(4) Always wear safety glassesand a face filter mask.

Wear ear protectors where possible.

(5) Do not touch muffler, spark phJg and rotating parts,

(6) Do not run the machine without flexible corrugated pipe and spent pipe or the engine

may be damaged,

(7) Do not use the machine in such a way that the end of spout pipe may be covered,

Check

(1) Always check periodically for efficient and safe operation. (2) Before Storing, drain fuel tank and carburetor.

(3) Wash air cleaner element with neutral detergent and dry it well. (4) Remove dust from blower,

(5) Tighten bolts further if they are ioose,

(6) Replace damaged parts, (7) Always use proper parts for replacement°

TABLE OF CONTENTS

SECT!ON I.

SECTION I1,

SECTION Ill,

SECTION IV,

SECTION V,

SECTION Vl,

SECTION VII_ SECTION VIII,

SECTION IX, SECTION X,

SECTtON XI.

Page

TECHNICAL SPECIFICATIONS ................................. 4

COMPONENT IDENTIFICATION .................................. 4

ASSEMBLY INSTRUCTIONS ...................................... 5

PREPARATION FOR USE ....................................... 5

STARTING THE ENGINE ...................................... 5

STOPPING THE ENGINE ........................................ 6

OPERATING THE POWER BLOWER ............................. 6

CHECK AND MAINTENANCE .................................. 6

STORAGE AFTER USE ........................................ 7

TROUBLESHOOTING .......................................... 8

SPARE PARTS LIST ........................................... 10

t, TECHNICAL SPECIFICATIONS Model 636.796912

Dimensions Weight, dry

Fuel capacity

Engine Type Displacement

Ignition system : Carburetor

Spark plug Spark plug gap

Starker

Max, air volume : Max. air speed

Muffler

Fuel

*Specifications are subject to change without notice,

LxWxH=450x490x495mm(17.7in. x19.3in, x19,5in.)

8 kg (17.6 Ibs,) 2,4 litre (0.634 gel)

Air cooled two stroke 37,7 cc (23 cuing)

Solid State Ignition

Float type

S.T,D, 360942 0,,6 - 0,7 mm (,024 - ,028")

Automatic recoil

11 rn3/min, (385 cu,fto/min,.)

83 m/sec, (273 ft/sec.) Spark arrester

Fuel-Oil Mix Between 20 and 25 to 1

For the first twenty hours, use the mixing ratio of between 15

and 20 to 1

I1o COMPONENT IDENTIFICATION

Fuel Tank Cap,

Recoil

Air Cleaner

Thro_le Lever

Spout Pipe--

_Straigh% Pipe

Straight Pipe Jr-L_

_ Swivel Joint

)ark Plug _Wing Hose Band

Pipe

Figure 1

Bent Tube

III.ASSEMBLY INSTRUCTIONS

I, Attach throttle lever to the machine_ {Fig_ 2)

Note: Ensure that the lever can be operated normally

Figure 2

2. Attach shoulder straps to the machine {Fig_ 3) Note: Adjust the straps to fit your body.

WARNING: Experience indicates that alcohol blended fuels

{called gasohot 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 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

CAUTION:

When preparing fuel mixture, mix onty the amount

needed for the job you are to do Do not use fuel mixture that has been stored longer than two (2) months. Fuel

mixture stored longer than this will cause hard starting and poor performance if fuel mix has been stored

longer than this time it should be removed and filled with a fresh mixture.

Use only a good grade of recJular gasoline, Use only a reputable brand of 2{ycte, air cooled engine

oil, Sears Chain Saw Oil is especially suited to this engine,

For the first twenty hours, use the mixing ratio of be- tween 15 and 20 to 1,

Figure 3

3o Assemble blower pipes, (Fig 1)

Note; Assemble pipes securely or they may separate

, while operating.

IV. PREPARATION FOR USE

1, Ensure again that all parts are assembled normally and

that aft nuts and bolts are properly tightened

2, Adjust shoulder straps to fit your body so that pads rest

comfortably on your shoulder or you will be tired

Fuel and oil mixing (1) Mixing ratio of fuel and oil: 20- 25 : 1

Example: 20 : t = gasoline 1 gal : oil 7 oz.

(2) Pour half the gasoline into the container, add oil and

shake to ensure thorough mixing, Now add the remainder of gasoline and shake again

25 : 1 = gasoline 1 gal, : oil 6 oz,

Fill the tank with fuel without spilling°

(t) Do not fill fuel above fuel limit level, (Fig. 4) (2) Wipe all spilled fuel with a dry cloth,

(3) Always attach the fuel strainer. (Fig° 11)

(4) Tighten fuel cap securely,

Figure 4

Vo STARTING THE ENGINE(Fig 5&6)

1. Open fuel cock, (Fig 5)

2_ Ctose choke lever. [Fig. 5)

Note: In winter, c!ose fully, but in summer or when the

engine is warm, open partly or fully.

Figure 5

Push up throttle lever, (Fig° 7)

Holding the machine by your left hand and putting your left foot on the machine frame, give a strong and straight

puii to recoil starter by your' right hand. (Fig 6)

CAUTION

Do not putl off rope, but return it gently with care_

UP (High speed)

t Throttle lever

DOWN (Low speed)

Stow

Figure 7

VII, OPERATING THE POWER BLOWER

Adjust shoulder straps correctly to make the machine fit your body.

After the engine fires, put the machine on your back without inciiningo

3, The velocity of air stream can be controlled from a gentle

breeze to a high-speed blast by throttle lever,

Select the best speed for each application of the blower,

Example: low speed for blowing dry leaves from lawn

and high speed for moving gravel or dirt from driveway, (Fig. 8 & 9)

Figure 6

5. After the engine fires, open choke lever gradually to re.

duce engine speed

6. Warm up the engine at low _peed Note: winter: about 5 min.. summer: 2 - 3 rain,.

VI. STOPPING THE ENGINE

1, Push down throttle lever to reduce engine speed,.

2. Stop the engine by pushing stop button. (Fig. 7)

3, Put the machine down on the ground and close fuel cock,

CAUTION

o Do not point the blower pipe in the direction of people

or animals,

e Always wear safety gtassesand use-a dust mask. = Do not operate in unventilated area.

Figure 8

Figure 9

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