Craftsman 315.10924 Manual de usuario

612547-480

SEARS

OWNERS

MANUAL

MODEL NO.

315.109240

CAUTION"

Read Rules for

Safe Operation

and Instructions

Carefully

SAVE THIS

MANUAL FOR

FUTURE REFERENCE

7-1/4 INCH CIRCULAR SAW.

DOUBLE INSULATED

Introduction

Operation

Maintenance

Repair Parts

8125.47-480

7-87

Designed exclusively for and sold onlyby

SEARS, ROEBUCK AND CO., Dept. 698/731A, Sears Tower. Chicago, IL 60684

pf]I_'I:EOPNU S A

FULL ONE YEAR WARRANTY ON CRAFTSMAN CIRCULAR SAW

If this Craftsman Circular Saw fails to give complete satisfaction within one yearTff_o-_w-thedate of

purchase, RETURN IT TO THE NEAREST SEARS STORE THROUGHOUT THE UNITED STATES and

Sears will repair it, free of charge.

If this circular saw is used for commercial or rental purposes this warranty applies for only 90 days

from the date of purchase.

This warranty gives you specific legal rights, and you may also have other rights which vary from

state to state. SEARS, ROEBUCK AND CO.

DEPT. 698/731A

SEARS TOWER

CHICAGO, IL 60684

INTRODUCTION

DOUBLE INSULATION is a concept in safety, in

electric power tools, which eliminates the need for

the usual three wire grounded power cord and

grounded supply system. Wherever there is electric

current in the tool there are two complete sets of in-

sulation to protect the user. All exposed metal parts

are isolated from the internal metal motor com-

ponents with protecting insulation.

IMPORTANT -- Servicing of a tool with double in-

sulation requires extreme care and knowledge of the

system and should be performed only by a qualified

service technician. For service we suggest you

return the tool to your nearest Sears Store for repair.

Always use original factory replacement parts when

servicing.

RULES FOR SAFE OPERATION

READ ALL INSTRUCTIONS

1. KNOW YOUR POWER TOOL m Read owner's manual carefully. Learn its

applications and limitations as well as the specific potential hazards related to

this tool.

2. GUARD AGAINST ELEC_'RICAL SHOCK BY PREVENTING BODY CONTACT

WITH GROUNDED SURFACES. For example: Pipes, radiators, ranges,

refrigerator enclosures.

3. KEEP GUARDS IN PLACE and in working order. Never wedge or tie lower blade

guard open. Check operation of lower blade guard before each use. Do not use

if lower blade guard does not close briskly over saw blade. WARNING: IF SAW

IS DROPPED, LOWER BLADE GUARD MAY BE BENT, RESTRICTING FULL

RETURN. If lower blade guard becomes bent or damaged, replace it before

reuse.

4. KEEP WORK AREA CLEAN. Cluttered areas and benches invite accidents.

5. AVOID DANGEROUS ENVIRONMENT. Don't use power tool in damp or wet

locations or expose to rain. Keep work area well lit.

6. KEEP CHILDREN AWAY. All visitors should wear safety glasses and be kept a

safe distance from work area. Do not let visitors contact tool or extension cord.

7. STORE IDLE TOOLS. When not in use, tools should be stored in a dry, high or

locked-up place -- out of the reach of chiidren.

8. DON'T FORCE TOOL. It will do the job better andsafer at the rate for which it

was designed. Page 2

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RULES FOR SAFE OPERATION (Continued)

31.

32.

33.

34.

35.

36.

37.

38.

b --

WARNING: ALWAYS RAISE THE LOWER BLADE GUARD WLT_._I';I]'H E HANDLE

TO AVOID SERIOUS INJURY. See Figure 14, Page 10.

GUARD AGAINST KICKBACK. See Pages 7 and 8.

BEFORE MAKING A CUT, BE SURE THE DEPTH AND BEVEL ADJUSTMENTS

ARE TIGHT.

DO NOT USE BLADES WITH INCORRECT SIZE HOLES. Never use blade

washers or bolts that are defective or incorrect. The maximum blade capacity of

your saw is 7-1/4" diameter.

Inspect for and remove all nails from lumber before cutting.

DRUGS, ALCOHOL, MEDICATION. Do not operate tool while under the

influence of drugs, alcohol, or any medication.

WEAR HEARING PROTECTION DURING EXTENDED PERIODS OF OPERATION.

SAVE THESE INSTRUCTIONS. Refer to them frequently and use them to

instruct third party users. If you loan someone this tool, loan them these

instructions also.

The operation of any Circular Saw can result in foreign objects being

thrown into the eyes, which can result in severe eye damage. Always

wear safety glasses or eye shields before commencing power tool opera-

tion. We recommend Wide Vision Safety Mask for use over spectacles or

standard safety glasses, available at Sears Catalog Order or Retail

Stores.

EXTENSION CORD

The use of any Extension Cord will cause some loss

of power. To keep the loss to a minimum and to pre-

vent tool overheating follow the recommended cord

sizes on the chart at the right. Extension cords

suitable for use with your circular saw-are available

at your nearest Sears Catalog Order or Retail Store.

Extension Cord Length Wire Size, A.W.G.

25-50 Ft. 16

50-100 Ft. 14

SAW BLADES

The best of saw blades will not cut efficiently if they

are not kept clean, sharp, and properly set. Using a

dull blade will place a heavy load on your saw and in-

crease the danger of kickback. Keep extra blades on

hand, so that sharp blades are always available.

Gum and wood pitch hardened on blade will slow it

down. Use gum and pitch remover Cat. No. 9-49191,

hot water, or kerosene to remove these accumula-

tions. DO NOT USE GASOLINE.

LUBRICATION -- All of the bearings in this tool are

lubricated with a sufficient amount of high grade

lubricant for the life of the unit under normal

operating conditions, therefore, no further lubrica-

tion is required.

Page 4

OPERATION

FEATURES

Features include easily operated bevel cut and depth

of cut adjustment mechanisms; directed air flow for

keeping line of cut clear; and blade wrench storage.

Before attempting to use your saw, familiarize

yourself with all operating features (See Figure 1)

and safety requirements.

SWITCH

Your saw is equipped with a "lock-off" switch which

reduces the possibility of accidental starting. You

must depress the button on top of the handle in

order to be able to pull the trigger switch. The lock

resets each time the trigger is released.

If any parts are missing do not operate your saw until

the missing parts are replaced. Make sure power supply is 110.120 volts, 60 HZ, AC

only.

UPPER BLADE GUARD TOP LOCK SWITCH (lock-off)

TRIGGER

LOWER BLADE

GUARD HANDLE

BEVEL CUT

ADJUSTMENT

(wing nut)

DEPTH OF CUT

ADJUSTMENT

(wing nut)

BLADE WRENCH

STORAGE AREA

LOWER

BLADE

GUARD

BLADE

EDGE GUIDE (RIP GUIDEI

"-BASE

ASSEMBLY

Fig. 1

Page 5

OPERATION

TO ASSEMBLE BLADE

1. UNPLUG YOUR SAW.

2. Remove blade wrench from storage area, See

Figure 2,

3. Position your saw on end of motor housing and

remove blade screw. NOTE: Turn blade screw

counterclockwise to remove.

4. Remove spring washer and "D" washer.

Fit saw blade inside blade guard and onto spindle.

NOTE: The saw teeth point upward at the front of

saw.

Replace "D" washer and spring washer. NOTE:

"Cupped" side of spring washer goes against

outer blade "D" washer. See Figure 2,

Replace blade screw and tighten until spring

washer is flattened. NOTE: Turn blade screw

clockwise to tighten.

Return blade wrench to storage area. NOTE:

Always place angled portion of blade wrench up

as shown in figure 2.

TO REMOVE BLADE

1. UNPLUG YOUR SAW.

2. Remove blade wrench from storage area. See

Figure 2.

3. Place your saw on a piece of scrap wood as shown

in figure 3 with the blade teeth embedded in the

wood.

Turn blade screw counterclockwise and remove.

Remove spring washer, "D" washer, and blade.

Before replacing blade, wipe a drop of oil onto

washers where they contact blade.

Return blade wrench to storage area. NOTE:

Always place angled portion of blade wrench up

as shown in figure 2.

BLADE WRENCH LOWER BLADE

STORAGE GUARD HANDLE

SPINDLE

LOWER INNER

BLADE BLADE

GUARD WASHER

BLADE

OUTER BLADE

"D" WASHER

SPRING

WASHER

OUTSIDE OF SPRING WASHER

CUPPED SIDE AGAINST

OUTER BLADE "D" WASHER

Fig. 2

TOP LOCK SWITCH (lock-off)

LOWER BLADE

GUARD HANDLE

BLADE

WRENCH

BLADE SCREW

Fig. 3

Page 6

OPERATION

BLADE GUARD SYSTEM

The lower blade guard attached to your circular saw

is there for your protection and safety. It should

never be altered for any reason. If it becomes damag-

ed, do not operate your saw until the damage has

been repaired or replaced. Always leave guard in

operating position when using your saw.

When sawing through 'work, lower

blade guard does not cover blade on underside of

work. See Figure 4.

Since blade is exposed on underside of work, keep

hands and fingers away from cutting area. Any part

of your body coming in contact with moving blade

will result in serious injury. Never use saw when

guard is not operating correctly. Guard should be

checked for correct operation before each use.

NOTE: The guard is operating correctly when it

moves freely and readily returns to the down posi-

tion. If you drop your saw, check the lower blade

guard for damage to all depth settings before reuse.

KICKBACK

THE BEST GUARD AGAINST KICKBACK IS TO

AVOID DANGEROUS PRACTICES.

Kickback occurs when the blade stalls rapidly and

the saw is driven back towards you.

RELEASE SWITCH IMMEDIATELY IF BLADE BINDS

OR SAW STALLS. See Figure 5. Kickback could

cause you to lose control of your saw. Loss of con-

trol can lead to serious injury.

KICKBACK IS CAUSED BY:

1. Incorrect blade depth setting. See Figure 5.

2. Sawing into knots or nails in work.

3. Twisting blade while making a cut.

4. Making a cut with adull, gummed up, or improper-

ly set blade.

5. Incorrectly supporting work. See Figure 6.

6. Forcing a cut.

7. Cutting warped or wet lumber.

8. Tool misuse or incorrect operating procedures.

TO LESSEN THE CHANCE OF KICKBACK:

1. Always keep the correct blade depth setting

the correct blade depth setting for all cuts has one

whole tooth projected below the material to be

cut. (For carbide-tipped blades, only one-half of a

tooth). See Figure 4.

2. Inspect the work for knots or nails before begin-

ning a cut. Never saw into a knot or nail.

LOWER BLADE GUARD

IS IN UP POSITION WHEN

MAKING CUT

BLADE EXPOSED ONE WHOLE Fig. 4

TOOTH ON UNDERSIDE OF WORK

BLADE SET L_j_

TOO DEEp _.,=,,,==..,_ Fig. 5

RIGHT

WRONG

Fig. 6

Page 7

OPERATION

TO LESSEN THE CHANCE OF KICKBACK (Cont'd.)

Make straight cuts. Always use a straight edge

guide when rip cutting. This helps prevent

twisting the blade in the cut.

Always use clean, sharp, and properly .set blades.

Never make cuts with dull blades.

.To avoid pinching the blade, support the work

properly before beginning a cut. The right and

wrong ways to support large pieces of work are

shown in figure 6.

6. When making a cut use steady, even pressure.

Never force cuts.

7. Do not cut warped or wet lumber.

8. Always hold your saw firmly with both hands and

keep your body in a balanced position so as to

resist the forces of kickback should it occur.

WHEN USING YOUR SAW ALWAYS STAY ALERT

AND EXERCISE CONTROL. DO NOT REMOVE YOUR

SAW FROM WORKPIECE WHILE THE BLADE IS

MOVING.

DEPTH OF CUT ADJUSTMENT

Always keep correct blade depth setting. The correct

blade depth setting for all cuts has one whole tooth

projecting below the material to be cut. (For carbide-

tipped blades, only one-half of a tooth). More blade

depth will increase the chance of kickback and

cause the cut to be rough.

TO ADJUST BLADE DEPTH

1. UNPLUG YOUR SAW.

2. Loosen wing nut. See Figure 7.

3. Hold base flat against the work and raise or lower

saw until the required depth is reached.

4. Tighten wing nut securely.

STARTING A CUT

KNOW THE RIGHT WAY TO USE YOUR SAW. See

Figure 8.

NEVER USE YOUR SAW AS SHOWN IN FIG. 9.

BASE

ASSEMBLY

WING NUT

Fig. 7

RIGHT

Fig. 8

WRONG Fig. 9

NEVER PLACE YOUR HAND ON THE WORKPIECE

BEHIND YOUR SAW WHILE MAKING A CUT.

Page 8

OPERATION

STARTING A CUT (Cont'd)

TO HELP MAINTAIN CONTROL:

1. Always support your work near the cut.

2. Support your work so the cut will be on your right.

3. Clamp your work so it will not move during the

cut.

Place your work with its good side down. NOTE: The

good side is the side on which appearance is impor-

tant.

Before beginning a cut, draw a guide line along the

desired line of cut. Then place front edge of base on

that part of your work that is solidly supported. See

Figure 10.

NEVER PLACE YOUR SAW ON THAT PART OF THE

WORK THAT WILL FALL OFF WHEN THE CUT IS

MADE. See Figure 11.

Keep the cord away from cutting area. ALWAYS

place the cord to prevent it from hanging up on the

work while making a cut.

_lf the cord hangs up on the work during

a cut, release the switch trigger immediately. Unplug

your saw and reposition the cord to prevent it from

hanging up again.

_Using your saw with a damaged cord

could result in serious injury or death. If the cord has

been damaged, have it replaced before using your

saw again.

Hold your saw firmly with both hands. See Figure 10.

Push the lock-off button down and squeeze the

switch trigger. NOTE: The lock-off button is located

on top of the handle. ALWAYS LET THE BLADE

REACH FULL SPEED, THEN GUIDE YOUR SAW IN-

TO THE WORK.

When making a cut use steady, even pressure. Forc-

ing causes rough cuts, could shorten the life of your

saw and could cause "kickback."

TOP LOCK SWITCH (lock.off)

RIGHT

Fig. 10

WRONG

Fig. 11

REMEMBER:

When sawing through work, the lower blade guard

does not cover the blade, exposing it on the under-

side of work. Keep your hands and fingers away from

cutting area. Any part of your body coming in con-

tact with the moving blade will result in serious

injury.

After you complete your cut release the trigger and

allow the blade to come to a complete stop. DO NOT

REMOVE YOUR SAW FROM WORKPIECE WHILE

THE BLADE IS MOVING.

_When lifting your saw from the work

the blade is exposed on the underside of your saw

until the lower blade guard closes, Make sure lower

blade guard is (}tosed before setting your saw down

on work surface.

Page 9

OPERATION

TO CROSS CUT OR RIP CUT

When making a cross cut or rip cut, align your line of

cut with the outer edge of the notch in the saw base

as shown in figure 12. Since the thickness of blades

vary, always make a trial cut in scrap material along a

guideline to determine how much, if any, the

guideline must be offset to produce an accurate cut.

NOTE: The distance from the line of cut to the

guideline is the amount you should offset the

guideline.

RIP GUIDE

Use a rip guide when making rip cuts up to five

inches wide. It helps prevent the blade from twisting

in a cut. The blade twisting in a cut causes kickback.

If needed, Rip Guide Cat. No. 9 27679 is available at

your Sears Catalog Order or Retail Store.

TO ASSEMBLE RIP GUIDE

1. UNPLUG YOUR SAW.

2. Place rip guide through holes in saw base as

shown in figure 13.

3. Adjust rip guide to the length needed for the cut.

4. Tighten screw securely.

When using a rip guide, hold the face of the rip guide

firmly against the edge of work. This makes for a true

cut without pinching the blade. The guiding edge of

work must be straight for your cut to be straight. Use

caution to prevent the blade from binding in the cut.

TO POCKET CUT

With the bevel setting adjusted to zero, swing the

lower blade guard up using the lower blade guard

handle.

While holding lower blade guard by the handle, firm-

ly rest the front of the base flat against the

workpiece with the rear of the base raised so the

blade does not touch the work. See Figure 14. Push

the lock-off button down and squeeze the switch

trigger. ALWAYS LET THE BLADE REACH FULL

SPEED THEN SLOWLY LOWER BLADE INTO THE

WORK UNTIL BASE IS FLAT AGAINST WORK.

, ---=_

TOP VIEW OF SAW FRONT OF SAW

u ll !i

NOTCH IN SAWiBASE r J /

GUIDELINE

ALIGN OUTER EDGE OF NOTCH IN SAW

BASE WITH LINE OF CUT AS SHOWN

WHEN MAKING CROSS CUTS OR RIP CUTS

Fig. 12

TOP VIEW RIP GUIDE

OF SAW

SCREW

LOWER

BLADE

GUARD

Page 10

PLACE RIP

GUIDE THRU

HOLES

Fig. 13

POCKET CUT

LOWER BLADE

GUARD HANDLE

Fig. 14

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