Craftsman 351243951 User Manual BAND SAW Manuals And Guides L0801047

CRAFTSMAN Saw Band Manual L0801047 CRAFTSMAN Saw Band Owner's Manual, CRAFTSMAN Saw Band installation guides

User Manual: Craftsman 351243951 351243951 CRAFTSMAN BAND SAW - Manuals and Guides View the owners manual for your CRAFTSMAN BAND SAW #351243951. Home:Tool Parts:Craftsman Parts:Craftsman BAND SAW Manual

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SAVE THIS MANUAL

FOR

FUTURE REFERENCE

IS_EA/R8

OWNER'S

MANUAL

MODEL NO.

351.243951

CAUTION:

READ ALL

INSTRUCTIONS

CAREFU LLY!

8_A/,_,_/I: RI:1FTSMI:1N®

18" Band Saw

Light Industrial Tool

oassembly

•operating

.repair parts

Sold by SEARS, ROEBUCK AND CO., Chicago, IL 60684 U.S.A. ©

Part Noo 6666.03 April 1993

FULL ONE-YEAR WARRANTY ON SEARS/CRAFTSMAN 18" Band Saw

If, within one full year from the date of purchase this Sears Craftsman 18" Band Saw fails due to a

defect in material or workmanship, Sears will repair it free of charge.

WARRANTY SERVICE 1SAVAILABLE BY SIMPLY RETURNING THE BAND SAW TO THE

NEAREST SEARS STORE OR SERVICE CENTER THROUGHOUT THE UNITED STATES.

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

to state.

SEARS, ROEBUCK AND CO., D/817 WA, 3333 Beverly Road, Hofman Estates, IL 60179

GENERAL SAFETY INSTRUCTIONS FOR POWER TOOLS

BEFORE ANY WORK IS DONE READ THE CAU-

TIONS LISTED BELOW CAREFULLY. WORKING

SAFELY PREVENTS ACCIDENTS.

OPERATOR SHOULD BE PREPARED FOR JOB:

a. Wear proper apparel. Do not wear loose clothing,

gloves, neckties, rings, bracelets or other jewelry

which may get caught in moving parts of the saw,

bWear protective hair covering to contain long hair

c. Wear safety shoes with non-slip sole&

d, Wear safety glasses. Everyday glasses have only

impact resistant lenses. They are not safety glasses°

eWear face mask or dust mask if ct_ing operation

is dusty°

f. Be alert and think clearly. Never operate power

tools when tired, intoxicated or when taking

medications that cause drowsiness,,

WORK AREA SHOULD BE READY FOR JOB:

a Keep work area clean. Cluttered work areas and

workbenches invite accidents,

b Do not use power tools in dangerous environ-

ments. Do not use power tools in damp or wet

location& Do not expose power tools to rain.

c Work area should be properly lighted,

d. The proper electrical outlet should beavailabIefor

the logic A three-prong plug should be plugged

directly into a properly grounded, three-prong

receptacle.

e Extension cords should have a grounding prong

and the three wires of the extension cord should be

the correct gauge,

f Keep visitors a safe distance from work area.

g. Keep children out of workplace° Make workshop

childproof,, Use padlocks, master switches and

remove starter keys to prevent any unintentional

use of power tools

SAW SHOULD BE MAINTAINED:

a, Always unplug band saw prior to inspection,

b Consult the owner's manual for specific maintain-

ing and adjusting procedures

c Keep band saw lubricated.,

d Use sharp blades and keep the saw clean for safest

operation.

e., Remove adjusting keys and wrenches. Form

habit of checking to see that keys and adjusting

wrenches are removed before turning on saw_

f Keep all guards in place and in working order.

g, Keep all parts in working order. Check to deter-

mine that the guard or other parts will operate

properly and perform their intended function_

ho Check for damaged parts. Check for alignment of

moving parts, binding of moving parts, breakage of

parts, mounting and any other condition that may

affect a tool's operation.

i, A guard or other part that is damaged should be

properly repaired or replaced. Do not perform

makeshift repairs., (Use the parts list provided with

owner's manual to order replacement parts,,)

OPERATOR SHOULD KNOW HOW TO USE SAW:

aUse the right tool for the job, Do not force a tool

or attachment to do a job for which it was not

designed.

b, Disconnect saw from power when changing

blade°

c, Avoid accidental start-up. Make surethat the saw

is in the "off" position before plugging in,

dDo not force a tool It wilt work most efficiently at

the rate for which it was designed.

e, Use recommended accessories, Consult the

owner's manual for recommended accessories.

The use of improper accessories may cause risk of

injury to persons.

f Handle the workpiece correctly,, Use push sticks

or push blocks when required Protect hands from

possible injury°

g Turn the saw off if it jams. A blade jams when it

digs too deeply into the workpiece. (The motor

force keeps it stuck in the workplace.)

h Never leave saw running unattended, Turn the

power off and do not leave saw until it comes to a

complete stop.

i, Do not overreach. Keep proper footing and

balance.

j. Never stand on saw, Serious injury could occur if

saw istipped or if blade is unintentionally contacted

k Keep hands away from moving parts and blade

I, Know your saw. Learn its operation, application

and specific limitations.

-2-

CONTENTS

Warranty ............................................. 2

General Safety Instructions

for Power Tools .................................. 2

Safety Instructions for Sand Saw ................. 3

Motor and Electrical Specifications ................. 4

Unpacking ....................................... 4

Assembly ............................................. 5

Electrical Connections .......................... 5

Operating Instructions ........................... 5 - 9

Maintenance ........................................... 9

Recommended Accessories ........................ 9

Troubleshooting ............................... 10

Parts Illustration and Listfor Motor' +............... 12

Parts Illustrationand Listfor Switch ................ 13

Parts Illustration for Blade Drive ................... 14

Parts Listfor Blade Drive .............................. 15

Parts Illustration for Table .......................... 16

Parts List for Table .............................. 17

Parts illustration for Blade Guides ................. 18

Parts List for Blade Guides ...................... 19

WARNING LABEL

The 18" band saw has been marked with a warning label

that needs to be observed for' safe operation, The

operator should be aware of the location and contents

of this label.

This warning label is placed in a specific location so it is

visible to the operator when starting and operating the

saw,,

WARNING

FOR YOUR OWN SAFETY

[] Read and understand owner's manual before

[] operating band saw

_ _ways wear eye protection

mDo not wear gloves, neckties, jewelry or loose

]clothing,

Mount saw securely to floor,

[] Maintain proper adjustment of blade tension,

]blade guides and thrust bearings

Adjust upper guide to just clear workpfeoe,

iHandle workpiece correctly Hold workpiece

against table, Use push sticks or push blocks

m when required

Guards should be in place and used at all times

[] Keep fingers out of path of blade

[] Turn machine off if it jams. Do not remove

jammed or cutoff pieces until the saw is turned

off, unplugged and the blade has stopped

SAFETY INSTRUCTIONS FOR 18" BAND SAW

Think safetyl Safety is a combination of operator

common sense and alertness at all times when the

band saw is being used.

WARNING: DO NOT ATTEMPT TO OPERATE THE

BAND SAW UNTIL IT IS COMPLETELY

ASSEMBLED ACCORDING TO THE IN-

STRUCTIONS.

1,+ KNOW GENERAL POWER TOOL SAFETY, Make

sure all precautions are understood and provided

for (page 2)+

2. SECURE ALL FASTENERS. Frequently check that

nuts and bolts are tight and have not vibrated loose

3,. FOLLOW OPERATING INSTRUCTIONS, Operate

the band saw as described in the manual,

4+ BE SURE MOTOR RUNS CLOCKWISE facing

shaft end+Blade must travel down toward the table+

5, USE THE CORRECT SPEED. The proper speed

will produce the optimum cut

6,. DO NOT FORCE THE CUT+ Slowing or stalling the

motor will overheat it+

7, DO NOT OVERHEAT THE WORKPIECE Excess

heat at the cut can damage the blade and reduce

the quality of the cut

8 AVOID DEFLECTING THE BLADE, Adjust the

blade guides to hold the blade properly, (See

"Upper and Lower Blade Guides," pages 6 and 7)

9, AVOID SHOCKING THE BLADE+ Do not start a cut

on a sharp comer',, (See "Blade Pitch." page 7+)

I0+ KEEP BAND SAW MAINTAINED, Follow "Main-

tenance" instructions (page 9)

11+ DISCONNECT POWER Turn switch off and dis-

connect the powerwhenever band saw is not in use

Caution; Be certain to follow proper operating pro-

cedures despite familiarity gained from fre-

quent use of your band saw+ Always

remember that being careless for even a

fraction of a second is sufficient time to

inflict severe injury.

The operation of any power tool can result in foreign

objects being thrown into the eyes. which can result in

severe eye damage,

Always wear safety goggles complying with ANSI Z87+1

(shown on package) before commencing saw opera-

tion+ Safety goggles are available at Sears retail or

catalog stores

-3-

MOTOR

MOTOR

AND ELECTRICAL SPECIFICATIONS

The band saw is supplied with a motor° The 120 volt AC

capacitor start motor has the following specifications:

Max° Developed Horsepower ....................... 2

Voltage .......................................... 120

Amperes .......................................... 7

Hertz ........... .................................... 60

Phase ........................................ Single

RPM ............................................... 1725

Rotation (viewed from shaft end) ........... Clockwise

POWER SOURCE

1_ The motor is designed for operation on the voltage

and frequency specified on motor nameplate_

2. Normal loads will be handled safely on voltages not

more than 10% above or below nameplate voltage

3. Running unit on voltages which are not within this

range may cause overheating and motor burnout.

GROUNDING iNSTRUCTIONS

WARNING: CHECK WITH A QUALIFIED

ELECTRICIAN OR SERVICE PERSON-

NEL IF GROUNDING INSTRUCTIONS

ARE NOT UNDERSTOOD OR IF IN

DOUBT AS TO WHETHER BAND SAW

IS PROPERLY GROUNDED.

DO NOT PERMIT FINGERS TO TOUCH

TERMINALS OF PLUGS WHEN IN-

STALLING OR REMOVING PLUG,

The band saw is provided with a 3-conductor cord and

ground type plug which has agrounding prong ap-

proved by Underwriters Laboratories and the Canadian

Standards Association

Do not remove or alter grounding prong in any manner_

In the event of a malfunction or breakdown, grounding

provides a path of least resistance for electrical current

to reduce risk of electrical shock.

The plug must be plugged into a matching outlet that is

properly installed and grounded in accordance'with all

local codes and ordinances_

Do not modify plug provided. If itwitl not fit in the outlet,

have the proper outlet installed by a qualified electrician°

Improper connection of the equipment-grounding con-

ductor can result in a risk of electrical shock.

The conductor with insulation having an outer surface

which is green or yellow with green stripe is the equip-

ment-grounding conductor,,

If repair or replacement of the electrical cord or plug is

necessary, make sure the equipment-grounding con-

ductor is not connected to a line terminal,

EXTENSION CORDS

I. The use of any extension cord wilt cause some drop

in the voltage and loss of power,

2. Wires of the extension cord must be sufficient in size

to carry the current and maintain adequate voltage.

3. Use the table below to determine the minimum wire

size (AWoG.) extension cord.

4_ Use only 3-wire extension cords having 3-prong

grounding type plugs and 3-pole receptacles which

accept the tool plug.

5, If power cord is worn, cut or damaged in any way,

have it replaced immediately.,

Extension Cord Length Wire Size A.W.G,

Upto50 ft........................................... t6

50 -100 ft........................................... 14

NOTE: Using extension cords over 100 ft. long is

not recommended.

UNPACKING

Check for shipping damage_ tf any damage or loss has

occurred, immediately fife a claim with the carrier°

IMPORTANT: TABLE AND RIP FENCE ARE COATED

WITH A PROTECTIVE COATING WHICH MUST BE

REMOVED FOR PROPER FIT AND OPERATION,

Remove coating with mild solvents such as mineral

spirits and a soft cloth, Nonflammable solvents are

recommended. After cleaning, cover all exposed sur-

faces with a light coating of oil, Paste ,wax is recom-

mended for table tops

Caution:Never use highly volatile solvents, Avoid

getting cleaning solution on paint, rubber or

plastic parts as it may tend to deteriorate

these 1inishes, Use soap and water on paint,

plastic or rubber components.

Band saw comes assembled except for following parts:

1 Table is shipped in a box next to saw

2, Motor is shipped in a box next to saw

3. Motor pulley V-belts are shipped behind upper

cabinet door

Parts shipped in a separate box within crate:

4. Rip fence and rip fence knob

5, 120 Volt plug, 2 each wire nuts, and strain relief

6, 2 Each band saw mounting brackets

7, Motor mount bracket

8 Standard and wide table inserts

9Miter gauge assembly

10_ Handwheel, handle, 6-1,0 x 8ram set screw and

extra long 3mm hex wrench

11_ Hex pin for table

12, 4 Each 5/16-18 x 3/4", 8 each 5/16-18 x 1" and 1

each 5/16_18 x 1 1/8" hex head bolts

13, 20 Each 5/16" and 4 each 8mm flat washers

14 12 Each 5/16" and 4 each 8ram lock washers

15 4 Each 8mm-1.25 x 25ram hex head bolts

16, 9 Each 5/16"-18 hex nuts

-4-

ASSEMBLY

MOUNT MOTOR

Refer to Figure 2

NOTE: Do not mount motor pulley to motor until

motor is mounted to sawn

!Mount motor (Key No 1) to motor mount bracket

(Key No 2) using four each 5/16-18 x 1" he× head

bolts (Key NOr,6), eight each flat washers (Key

No. 7) and four each lock washers (Key No, 8), Be

sure to mount motor to bracket using holes in

motor base as shown in Figure 2

2 Mount motor mount bracket to band saw base

using four each 8ram-1,25 x 25mm hex head bolts

(Key Noo 3), four each 8ram lock washers (Key

No 4) and four' each 8mm flat washers (Key No 5).

Refer to Figure 4

3 Slide motor pulley (Key NQ 38) onto motor' shaft

with motor key in motor' shaft groove and motor

pulley groove° Align motor pulley with step pulley

(Key No_ 32) using a straight edge so that V-

grooves in motor pulley are aligned with V-grooves

in step pulley. Secure motor pulley with two set

screws (Key No. 40),

4 Slide belt tension handwheel (Key No..51) onto belt

tension shaft (Key No_ 52) and secure handwheel

with setscrew (Key No. 55) using 3mm hexwrench

Thread handle (Key Nov53) into handwheeL

5 Mount motor V-belt (Key No, 38) on motor pulley

and step pulley. Tension V-belts by rotating tension

handwheel

Refer to Figure 5._

6 Mount table usingfour each 5/16-18 x 3/4" hex head

bolts (Key No 12), four each lock washers (Key

No, 13) and four eachflatwashers (KeyNo 14). Do

not tighten bolts Press the standard insert (Key

No. 2) into hole on top of table with beveled slot

aligned parallel with slot in table. Position table so

that blade is centered with insert slot and blade is

parallel with miter gauge slot Secure table by

tightening four each 5/16-18 x 3/4" hex head bolts

7 Thread 5/16"_18 hex nut (Key No. 16) onto 5/16-18

x I 1/8" hex head bolt (Key No,_15).Thread bolt into

threaded hole on bottom left side of table. Adjust

table perpendicular to blade using a square and

rotate 5/16-t8 x 1 1/8" bolt so that it holds table in

perpendicular position. Rotate hex nut against

table to secure bolt,

8 Mount two each mounting brackets (Key No.,24) to

holes on front side of band saw base using four

each 5/!64 8× 1"hex head bolts (Key No, 25), eight

each flat washers (Key No. 14), four each lock

washers (Key No_ 13) and four each 5/16_'-18 hex

nuts (Key No 16). Secure mounting brackets to

floor using two each anchor bolts (not supplied).

ELECTRICAL CON NECTIONS

WIRING MOTOR

WARNING: ALL ELECTRICAL CONNECTIONS

MUST BE PERFORMED BY A

QUALIFIED ELECTRICIAN.

Refer to Figure 2

The motor (Key No, 1) should be wired for 120 volts and

clockwise rotation as viewed from shaft end of motor

A schematic supplied with motor will describe proper

wiring procedures

Refer to Figure 3

Wire motor tine cord (Key No,. 6) to motor using strain

relief (Key No, 8) and two wire nuts (not shown),

Mount strain relief to motor connection box by removing

a "knock-out" on connection box and locking the strain

relief through "knock-out" hole with strain relief nut

Pass motor cord through strain relief and secure cord

with screw and nut on strain relief.

Wire motor with wire nuts provided Be sure to ground

motor with green grounding wire in motor cord

INSTALL PLUG

Refer to Figure 3

Wire line cord to plug (Key No, 9) provided Be sure to

ground plug using green grounding wire in line cord

OPERATING INSTRUCTIONS

The 18" Band Saw isa versatile cutting tool and provides

four different cutting speeds so the saw can be used to

cut a variety of materials. The band saw offers con-

venient tensioning and tracking so changing blades is

not cumbersome The band saw can accommodate

blade widths up to 1" for many types of cuts

WARNING: ALWAYS OBSERVE THE FOLLOWING

SAFETY PRECAUTIONS.

Use proper blade for workpiece. Make sure blade

guides are positioned and adjusted correctly

Check to make sure blade is tensioned correctly_ Be

sure blade is tracking correctly Align table to blade

Choose the proper speed for cutting operation

After turning on saw. allow blade to come to full speed

before attempting any cutting operation

Support workpiece properly Use a smooth steady feed

to guide work through cut

Keep hands away and out of line with moving parts

Always wear eye protection

-5-

OPERATING iNSTRUCTiONS (Continued)

REMOVING BLADE

Refer to Figure 4,.

The 18" Band Saw is designed for convenient blade

changing. The table is provided with a slot which allows

the blade to be removed without disturbing the table.

Remove the stud so it will not obstruct removal of blade.

Loosen lever (Key Noo 17) which locks tracking knob

(Key No. t6).

Loosen blade tension by rotating handwheel (Key

No. 15)o

When removing blade be careful because blade may

spring from saw when tension is released. The released

blade can be removed and replaced with another blade,,

INSTALLING BLADE

To replace the blade, the table stud must be removed as

described in "Removing Blade" above.

Although many of the adjustments may not be altered

when the blade is removed, every adjustment should be

checked prior to using a newly installed blade,

Follow safety precautions which should be observed

every time the band saw is turned on,

Make sure the blade teeth are pointing in the correct

direction. Blade teeth must point down° Turn blade in-

side out if necessaryH

Center the blade on the blade wheel. Tension and track

the blade as described in the following sections.

NOTE: Do not use a new blade to complete a

previously started cut,

TENSIONING BLADE

Refer to Figure 4.

Tension blade by turning the handwheel (Key No. 15).

Be sure blade guides are not interfering with the path of

the blade.

Tighten blade until it is properly tensioned, A properly

tensioned blade will ring slightly when back of blade is

plucked, (Like a string on an instrument ,)

NOTE: CHECK THE TENSION OF A NEW BLADE.

ADDITIONAL TENSION MAY BE RE-

QUIRED AFTER A FEW MINUTES OF

OPERATION.

TRACKING BLADE

Refer To Figure 6.

Track the blade after it has been tensioned°

Proper tracking is achieved when drive wheel and idler

wheels are aligned,

The knob (Key No, 16) is used to tilt tracking bracket

(Key No. 6) and align blade wheels,

A change intension of blade will affect wheel alignment

Turn idler wheel (Key No 4) by hand and observe how

blade rides on the wheels

If blade tends to ride out of the cabinet, turn knob

clockwise to tilt idler wheel up.

If blade tends to ride into the cabinet, turn tracking knob

counterclockwise to tilt idler wheel down,

When blade is tracking properly, lock the position by

holding the knob and tightening the lever (Key No,, 17)

against the cabinet.

ALIGNMENT OF DRIVE WHEEL

Refer to Figure 4.

A blade under high tension may also pull drive wheel out

of alignment.

Alignment of drive wheel can be adjusted with hex bolts

(Key No, 27),

Lock position with nuts (Key No. 28).

NOTE: Only attempt adjusting drive wheel align-

ment if blade cannot be properly tracked

with tracking adjustment alone.

BLADE GUIDES

Refer to Figure &

Blade guides support the band saw blade at sides and

the rear of blade. The blade guides should be adjusted

to prevent twisting and deflection of blade,

Blade guides should not touch blade when no material

or workpiece is in contact with the blade,. Guides need

to be adjusted as described below,,

UPPER BLADE GUIDES

Refer to Figure 6

The upper blade guides employ two ball bearing sets on

adjusting pins for side support and a thrust bearing on

an adjusting pin at the rear.

The guide depth bracket (Key No. 26) should be posi-

tioned so bearing on either side of blade will support as

much of blade width as possible without interfering with

the tooth set.,

Adjust guide depth bracket by loosening bolt (Key No,

11) and sliding bracket into position.

Secure position of upper guide casting by tightening

bolt, Adjust guide bearings to the side of the blade with

a hex wrench.

Use a feeler gauge to check that the bearing is about

0°002" away from the blade

Lock the adjustment by tightening the bolt and nut (Key

Nos,, 34 and 13).

Loosen handle (Key No. 23) and push adjusting pin to

set thrust bearings 04002" away from back of the blade,

Secure the position of the rear bearing by tightening

handle,

Adjust height of the upper guide bearings to clear the

workpiece by 1/4"

Loosen knob (Key No, !) and reposition rack within

guides,

Tighten knob to secure position on height adjustment

-6-

OPERATING INSTRUCTIONS (Continued)

LOWER BLADE GUIDES

Refer'to Figure 6.

The lower blade guide employs two guide blocks for side

to side support.

The lower guide bracket is spaced close to table surface

to minimize unsupported length of blade

Loosen nut (Key No, 27) to position the lower guide

bracket on the alignment block (Key No. 33).

Adjust the lower' guide bracket so the block does not

interfere with the blade set.

Loosen set screws for' guide blocks and adjust blocks to

about 0,002" from each side of blade_

Adjust bearing (Key No. 19) at rear' of blade by loosening

the knob (Key NOo32)_

ALIGN TABLE

To perform any straight cut accurately, table must be

aligned to the blade.

Once blade is tensioned and tracked correctly, the tabte

can be adjusted to it

Lock table in horizontal position_ Attach rip fence to the

table and push it against the blade,

Make sure rip fence and blade are parallel,

If table is not aligned, loosen four hex nuts which attach

table to upper trunnion and reposition the table_

Secure table position with four' hex bolts when it is

aligned. (Review "Assembly," Number 6,)

BLADE SELECTION

Blades vary depending on type of material to be cut, size

of the workpiece and type of cut that is being performed.

Characteristics which make blades different are width,

thickness, type of tooth and blade pitch

The width of blade describes the distance from tip of a

tooth to back of blade

Width of blade will affect rigidity of blade. A wider' blade

will wander' less and produce a straighter cut

Width of blade also limits the smallest radius which can

be cut,. A 1/4" wide blade can cut about a 1" diameter_

Blade thickness describes distance between sides of

blade, A thicker blade has more rigidity and stronger

teetb_

The narrow thick blade would be used to cut curves in

metal, while a wide thin blade would be used to re-saw

lumber

Blade manufacturers should be able to supply informa-

tion about biades for specific applications

TYPE OF TOOTH

The shape of teeth are varied to achieve specific cutting

results_

A blade cuts the work by removing material

The blade must scrape a chip of the workpiece away

from the cut,

The shape of gullet between teeth determines how much

material can be taken out with each blade tooth

Rake angle is the angle which the cutting face of the

tooth makes with a line perpendicular to the back of

blade°

A 0° rake angle is used to scrape harder materiats away

from the cut.

A positive rake angle causes the blade to dig aggressive-

ly into the workpiece,

Softer materials require more aggressive chip removal,

Larger gullets provide for faster removaf but have to be

limited in size because they make the blade teeth

weaker.

Blade teeth will also vary inthe way which the teeth have

been set from one side to the other.

A wider set is used for contour work because the wider

kerf allows the operator to cut tighter curves,

BLADE PITCH

Pitch describes number of teeth per inch or tooth size.

Blades with more teeth per inch will produce smoother

cuts_

The type of material being cut determines number of

teeth which should be in contact with wor k,There should

always be at least three teeth in contact with the cut to

avoid shocking the blade.

Blade shocking occurs when the pitch is too large and

the blade tooth encounters too much material. This can

strip teeth from the blade.

When the pitch is too small the gullets of the teeth will fill

up, leading to the creation of excess heat for the blade.

In soft materials the proper blade has between 6 and 12

teeth per inch.

In cutting hard materials, where shocking is more

detrimental, there should be between 12 and 24 teeth

per'inch.

BLADE SPEED

The amount of force that the blade cuts with is deter_

mined by blade speed.

High cutting speeds are used on soft materials where

less force is needed and a high rate of material removal

is desired_

Low cutting speeds are used on hard materials where

more force is required,

To change the blade speed, position the V-belts in the

proper configuration as indicated (see Figure 1).

Reposition the V-belts and tension them as described in

the next section

_7-

OPERATING iNSTRUCTIONS (Continued)

BLADE SPEED (FPM)

0 700 1480 380_

Figure 1

FPM

©

270 -Steel, bronze

700 - Brass, copper

1480 - Hard woods, plastic

3800 _ Soft woods, other light materials

REPOSITIONING V-BELTS

Refer to Figures 1 and 4

The band saw uses a two-belt drive system to provide a

selection of blade speeds (see Figure 1).,

Idler pulley (Key No, 32, Figure 4) is fastened to tension

arm (Key No. 33) so both belts can be tensioned at the

same time.

Position tension arm by revolving handwheel (Key

No. 51). Loosen the V-belts by rotating the handwheel

counterclockwise

When the V-belts are loose, position them to desired

configuration (see "Blade Speed," and Figure 1) and

tighten by rotating the handwheel clockwise,

Belts are properly tensioned when light pressure applied

between the pulleys produces about 1/2" deflection.

Do not overtighten V-belts, Excessive tension on V-belts

will reduce available cutting force.

TYPE OF CUT

Band saw can be used to perform a variety of cuts

Cutting procedure used depends on size and desired

shape of cut

Rip fence is used to guide workpiece to prod uce straight

cuts on longer pieces_

Miter gauge is used to produce angle cUtSr

Contour cutting is done by guiding workpiece free*

handed to produce curved shapes,

Beveled cutting can be done with any proper work guide

method by tilting the table°

Regard less ofwhich method of guiding the work is used,

aworkpiece which overhangs the table by more than 10"

should be supported by freestanding material stands

RIP FENCE OPERATION

Refer to Figure 5_

Rip fence can be used to guide workpiece with one

square edge past blade when tabte is aligned properly,

Set the rip fence to the desired width of cut on the inside

of the throat, Do not forget about the saw kerf. Use a

square to measure from tip of a tooth to fence,, Lock

fence securely with knob (Key No. 14).

The portion of material between blade and fence is

considered the workpiece. Material on outside and be-

hind the cut is scrap material which is being cut off,

Use right hand to keep work against fence,, Do not push

on scrap portion of work, This could pinch or bind blade

Avoid passing hands beyond the cut,, Use push sticks to

finish cuts and pass the workptece away from the blade.

MITER GAUGE OPERATION

Use miter gauge for securing and holding workpiece at

desired angle to produce angled cuts, Use scale to

adjust gauge to desired angle,

Caution: Never use miter gauge and rip fence at

the same time. Workpiece may bind

blade damaging workpiece and injur-

ing operator.

CONTOUR SAWING

When contour sawing, both hands must be used to keep

workpiece flat against the table and guided along

desired path,

Avoid positioning hands in line with blade, Hands could

contact blade if they slip,,

Try to stand to front of saw and use hands over portion

of table which is to the right of blade and before the cut

Do not attempt sharp corners which may twist or bind

the blade. Cut small corners by sawing around them,

Saw to remove smaller pieces of scrap until desired

shape is obtained,

BEVEL CUTTING

Refer to Figure 5,

Perform any saw operation at a bevel by tilting table

Loosen knob (Key No 8, Figure 5) to tilt table to desired

position, Use a square or protractor to set angle and lock

table in position with knob

Use caution when supporting work while bevel cutting

Do not allow work to hang on blade.

-8-

OPERATING INSTRUCTIONS (Continued)

DUST COLLECTION

Refer to Figure 4,

Sawdust or metal shavings wiltfail into the lower cabinet

of the saw.

The saw is fitted with a 4" male dust chute (Key No. 45)

for attachment to a dust collector°

Use a dust collector with a4" diameter hose to create

the proper' suction to remove debris from inside the

lower cabinet.

The particles which collect on the drive wheel may affect

the band saw's operation.

Make sure that the brush (Key Noo 25) is in contact with

the wheel to properly remove foreign particles from the

drive wheel

Caution: Check that the lower cabinet is free of

sawdust before performing any metal cut-

ting operations. This is a possible fire

hazard,

MAINTENANCE

CLEANING

Keep machine and workshop c_ean,

Do not allow sawdust or metal shavings to accumulate

on the band saw.

Keep wheels clean,

Debris on wheels wJJ!cause poor" tracking and blade

slippage.

Keep mechanism's threaded or sliding surfaces free of

foreign particles,

Operate the band saw with a dust collector to minimize

clean up.

LUBRICATION

The shielded ball bearings are permanently lubricated

when manufactured and require no further' lubrication

Small amounts of machine oil can be applied to

mechanism's threaded or' sliding surfaces.

Occasionally apply a coat of automobile type wax to the

table to keep it slick and corrosion free,,

KEEP BAND SAW IN REPAIR

If the power cord is worn or cut in any way, have it

replaced,

Replace V-belts and blade when they are worn°

Replace any damaged or missing part

Use the parts list to order'parts.

RECOMMENDED ACCESSORIES (Catalog Items)

REPLACEMENT BLADES

LxW" TEETH CATALOG

FOR INCH PER INCH NUMBER

Wood 133 x 3/4 4 926656

, , ,,,,,,,,

Metal 133 x3/4 10 926657

Metal 133 x3/4 14 ,926658

-9-

SYMPTOM

Excessive blade

breakage

Premature blade

dulling

i,i ill, ,i ,i,l,l,i

Crooked cuts

2o

4,_

5,

6r,

7.

8

9.

1o

2.,

3o

4,

5

6

7,

2_

3.

4,

5

6

7.

8o

9.,

TROUBLESHOOTING

Material not secure on table

Incorrect speed or feed

Blade too coarse for material

Incorrect blade tension

Teeth in contact with work before saw

is started

Blade rubs on wheel flange

Mis-aligned guides

Blade too thick for wheel diameter

Cracking at weld

,,,,,,Hi, ,,,HU II,I,ll,,,I

Blade too coarse

Too much speed

Inadequate feed pressure

Hard spots or scale in or on material

Work hardening of material

Blade installed backwards

Insufficient blade tension

Work not square

Rate of feed too great

Guide blocks not adjusted properly

Inadequate blade tension

Upper blade guide too far from

workpiece

Dull blade

Speed incorrect

Blade guide assembly toose

Blade thrust bearing not adjusted

properly

CORRECTIVE ACTION(S)

1o Squarely place work on table

2 Check Machinist Handbook for recommended

speed or feed

3 Check Machinist Handbook for recommended

blade type

4. Adjust blade propedy

5. Place blade in contact with work after saw has

reached full speed

6 Adjust wheel alignment propedy

7Adjust blade guides propedy

8 Use thinner blade

9, Replace blade

1, Use finer tooth blade

2. Try next lower speed

3_ Gently increase pressure

4 Reduce speed, increase rate of feed (scale)

Change blades (hard spots)

5 Increase rate of feed

6. Remove blade, twist inside out and

reinstall blade

7_ Increase tension to proper level

,H, i ii , ,ill

1 Use rip fence; adjust tilt of table at 90° to blade

2. Reduce rate of feed

3. Move both guide blocks within 0.002" to

blade (use gauge)

4 Increase blade tension properly

5 Adjust upper guide to clear workpiece

by 1/4"

6, Replace blade

7, Check Machinist Handbook for

recommended speeds

8 Tighten blade guide assembly

9. Move blade thrust bearing within 0°002"

behind blade back

H, i, 'H'H"'HH""'H

1. Reduce speed or feed

2_ Replace with finer blade

1 Decrease feed pressure

1_ Reptace

2, Adjust as pet"Lower Blade Guides," page 7

3 Tighten properly

1, Blade guide blocks or bearings worn

2_ Blade guide blocks or bearings not

adjusted properly

3, Blade guide blocks or bearing bracket

loose

1, Teeth too coarse for work

2. Feed too heavy

3. Vibrating workpiece

4. Teeth filling with material

i ,H,,, H

1. Blade tension too great

2, Drive bett tension too great

3Blade too coarse for work

(typical when cutting pipe)

4, Blade too fine for work (typical when

cutting either thick or soft material)

5 Excessive dirt and sawdust

i i, ,i,l,l,ll, l,,i, =

Rough cuts 1 Too much speed or feed

2, Blade too coarse

Blade is twisting 1. Cut is binding blade

i , Hi H,,

Unusual wear on

side/back of blade

Teeth ripping from 1. Use blade with finer teeth

blade 2, Decrease feed rate

3Hold workpiece firmly

4. Use blade with coarser teeth

,,i,ll

Motor running

too hot

1 Reduce tension on blade

2. Reduce tension on drive belt

3 Use blade with finer teeth

4 Use blade with coarser teeth

5 Clean thoroughly; vacuum motor and belt area

-10-

DATE

SERVICE RECORD

MAINTENANCE PERFORMED

i ,Ji,,IL,J,,,,,,,,,,,L

COMPONENTS REQUIRED

ll,_ H ,ll,,,,,,,,ll ii ill ,,

REPLACEMENT PARTS ILLUSTRATION FOR MOTOR

1

2

Figure 2 - Motor Illustration

REPLACEMENT PARTS LIST FOR MOTOR

KEY

NO.

1

2

3

4

5

6

7

8

9

PART

NO,

6501o00

5596o01

0302°00

1333..00

0695.00

STD523110

STD551031

STD551131

STD541031

DESCRIPTION

Motor with key

Motor mount bracket

8-! 25 x25mm Bolt, hex head

8mm Washer, lock

8mm Washer, flat

*5/16-18 x 1" Bolt, hex head

*5/16" Washer, flat

*5/16" Washer, lock

*5/16"-18 Nut, hex

QTY.

t

1

4

4

4

4

8

4

4

*Standard hardware item available locally.

Always order by Part No. not by Key No

-12_

REPLACEMENT PARTS ILLUSTRATION FOR SWITCH

11

.1

Figure 3 - Switch illustration

REPLACEMENT PARTS LIST FOR SWITCH

KEY PART

NO. NO, DESCRIPTION QTY.

i,,, ,,,, "

1 0423,00 Switch with key 1

2 542&00 Switch plate t

3 5167,00 4-.70 x 10ram Screw, fiat head 4

4 STD840610 *6mm-1o0 Nut, hex 2

5 5441.00 6-1.0 x 16ram Screw, flat head 2

6 5427.00 Line cord (switch to motor) 1

7 5428.00 Line cord (power to switch) 1

87256.00 Strain relief 2

95597.00 Plug t

10 2820,00 6ram Washer, serrated 3

11 544200 Strain relief t

12 0582.00 Strain relief 1

•Standard hardware item available locally

Always order by Part No, not by Key No,

q3-

REPLACEMENT PARTS ILLUSTRATION FOR BLADE DRIVE

22

2O

t4

23

3O

22

26

44

32

2t

35

18

16

14

37

51

5O

17

53

Figure 4

-t4-

REPLACEMENT PARTS LIST FOR BLADE DRIVE

KEY PART

NO. NO.

1 5101.00

2 0341.00

3 STD315235 *

4 5103.00

5 510&00

6 510&00

7 STD852016

8 5107_00

9 5108o00

t0 5109.00

11 1305o00

12 5t1!.00

13 5112,00

14 STD85t008

15 511&00

16 5114o00

17 511500

18 2807.00

19 STD835016

20 7257.00

21 STD852020

22 5440.00

23 STD840812

124 5120.00

J25 512t_00

!26 5!22.00

DESCRIP1

Tread

17mm Retatnln_ ring,

extema!

Bearing 6203

Idler wheel

Idler shaft

Tracking brack,

*16 mm Washer lock

16mm x 1_5Nu:, hex

Tension bracke

Pivot shaft

Push nut, 10mr

Upper wheel s[ pport

Spacer

8ram Washer, flat

Blade tension handwheel

Blade tracking knob

Tracking lever

8mm-1o25 Nut, hex

head washe

* 8qo25 x 16mm ,

hex head

Door knob

*20mm Washer, lock

Latch

*8mmq.25 Nut, hex

Brush bushing

Chip brush

8-1.25 x 100ran , carriage

QTY.

2

4

2

1

1

1

t

2

1

1

2

1

1

5

1

1

1

5

4

2

1

2

2

1

1

1

KEY]

NO.I

27 I

28 !

29 I

30 I

31 l

32 j

q

33 ]

34 1

35 1

36 1

37 I

39 1

40 I

41 I

42 I

43 't

44 t

45 I

46 t

47 t

48 1

49 t

50t

51 I

52 I

53 ]

O I

PART

NO.

STD833020

STD840610

5t23.00

5t24_00

5125,00

512600

5127,,00

512&00

5!29,00

2809.00

STD851016

STD3O3340

2796.00

281&00

519600

104300

STD851008

3837°00

5!38.00

280000

5t40..01

5141.01

5t42.00

5598.00

736800

277&00

£26656

DESCRIPTION

*6-1.0 x 20mm Bolt, hex head

* 6mm-l.0 Nut, hex

Shaft

Drive Wheel

V-Belt, 3L610

Idler pulley

Tension arm

Clevis

8 x 16ram Pin, spring

Collar

*16ram Washer, flat

*V-Belt, 3L340

Motor pulley

6-1.0 x 12mm Screw, set fL pt

20mm-1.5, Nut, hex

* 6-1o0x 8ram Screw, set

* 8mm Washer', fiat

Bearing 6203 RSR

Dust chute

4-0°7 x 6ram Screw, set

Lower cabinet door

Upper' cabinet door

Spacer

Cabinet

Handwheel

Shaft

Handle

Blade, 133"-4 hook (wood)

QTY,

1

J

t

4

!

1

1

1

4 I

i

i

1

1

1 I

1t

I

i

1 Not economical for reptacemenL

eNot shown. The accessories are current and were available inthe catalog at the time this

manual was printed.

* Standard hardware item, available locally

Always order by Part No not by Key No

-15-

REPLACEMENT PARTS ILLUSTRATION FOR TABLE

2

d

_3

18

Figure 5

14

/

24

--16 i

REPLACEMENT PARTS LIST FOR TABLE

......KEY

NO.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

2O

21

22

23

24

25

o

PART

NO.

535900

517&00

5195.00

5185.01

5187+01

5184.00

5! 8600

STD851008

5210+00

5188,00

2807.00

STD523107

STD551131

STD551031

6542.00

STD541031

DESCRIPTION ................

Table

Table insert, thin slot

Table insert, wide slot

Upper trunnion

Lower' trunnion

8-1.25 x 50ram Bolt, carriage

Guide block

* 8mm Washer, fiat

Lock knob

8-1+25x 20mm Bolt, carriage

8mm-1.25 Nut, hex hdLwasher

* 5/16-18 x 3/4" Bolt, hex head

, ,, .,,,,,,,,,,,v,,

r* 5/16" Washer, lock

* 5/16" Washer, flat

5/16-18 x 1 1/8" Bolt, hex head

E* 5/16"-18 Nut, hex

, ,,, ,, ,, ,,_,,,,,u,,,,,

0211 +00

7634.+00

7635+00

5351.00

0003+00

5356+00

5358+00

5354.00

STD523110

6666.03

Table stud

Scale

Screw, thread forming

Rip fence

Knob, external threads

Eye bolt

12mm-1o75 Nut, hex nylon

Mountinq bracket

*5/16q8 x 1" Bolt, hex head

Owner's Manual

Standard hardware item available locally

Not shown

Always order by Part No not by Key No

QTY.

1

1

1

1

1

t

t

1

1

4

4

4

8

12

t

5

1

1

1

1

1

1

1

2

4

1

REPLACEMENT PARTS LIST FOR MITER GAUGE

Figure 5a

KEY PART

NO. NO. QTY.

1 8251+00 1

2 8250.00 1

3 1370.00 1

4 STD551025 1

5

6

7

8

9

10

11

12

13

14

15

16

17

825500

8252+00

STD541010

STD511007

8253.00

8254.00

388800

STD511002

599100

1833.00

109300

825600

825700

DESCRIPTION

Miter gauge

Miter gauge bar

#10 Fiber washer

*1/4" Washer, flat

Threaded pin

Knob

*#10-24 Hex nut

*#10-24 x 3/4" Screw, pan head

indicator

Scale

#10 Washer, fiat

*#10-24 x 1/4" Screw, pan head

#10-24 x 1/2" Screw, flat head

5-80 x 8mm Screw, fiat head

Guide

Indexing pin

Miter gauge assembly

* Standard hardware item available locally

eNot shown

Always order by Part No not by Key No

-17-

1

1

3

3

1

1

1

!

2

1

1

1

1

REPLACEMENT PARTS ILLUSTRATION FOR BLADE GUIDES

Figure 6

14

13

11

22

32

34

•27

28

-18-

REPLACEMENT PARTS LIST FOR

KEY

NO,

1

2

3

4

5

6

7

8

9

10

1t

12

13

14

15

16

17

18

19

2O

21

22

23

24

25

26

27

28

29

3O

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

BLADE GUIDES

PART

NO.

521&00

7258.00

0832,00

7260700

2810.00

5! 48.00

5211.00

5212o00

5151,.00

5152.00

STD833025

5213.00

STD840610

STD833012

5154.00

STD851006

5155°00

3646°00

STD315465

2818.00

5159.00

516Q.00

5161_00

5162.00

7261.00

5164,00

5153,00

STD851006

2819.00

5t66.00

365&00

5169.00

5168.00

STD833020

STD851004

STD833016

STD840407

5156.00

7636.00

0781.00

5215o00

5216o00

7637_00

5188°00

2811.00

DESCRIPTION QTY

, ,,,, ,,,,

Lock knob 1

10ram Washer 4

8mmq.25 Nut, hex 1

Blade guide handwheel t

Pinion gear ........... 1

8mm Retaining ring, external 1

Bolt plate 1

Guide extrusion 1

Guide bracket 2

Pinion bracket 1

, ,,,,,,

*6-140x 25mm Bolt, hex head 2

5mm x 16 Screw, thread forming 2

* 6-1.0mm Nut, hex 2

*6-1.0 x 12mm Bolt, hex head 2

6-1.0 × 20mm Screw, flat head 1

,,,,,,,,,

*6mm Washer', flat 4

Upper guide casting 1

Guide bearing pin 3

*Guide bearing (626Z) 3

6mm-l,0 Nut, hex head washer 6

Guide bearing clamp 2

Thrust bearing assembly 1

Clamp handle 1

Thrust bearing clamp t

Guide attaching bracket t

Guide depth bracket t

6-1,0mm Nut, hex nylon 4

*6ram Washer, flat 2

6q.0 x 12ram Screw, flat po#lt set 2

Lower' guide casting 1

Guide block 2

Thrust bearing lock knob 1

Alignment block 1

* 6-1,0 x 20mrn Bolt, hex head 4

*4mm Washer, flat _,

*6-1,0 x 15mm Bolt, hex head 6

*4mm-.70 NUt, hex 2

4ram Washer, serrated 2

Blade guard clip 1

4-.70 x 8mm Screw, pan head 6

4mm-o70 x 20 Screw, pan head 6

Rack 2

Blade Guard 1

8mm-1,25 x 20 Bolt, carriage t

Pinion shaft 1

46 2817.00 4 x 20ram Pin, spring t

47 7262.00 8mm Washer, flat 1

Always order by Part No. not by Key No.

-t9-

OWNER'S

MANUAL

SERVICE

MODEL NO.

351.243951

HOW TO ORDER

REPAIR PARTS

18" Band Saw

Light Industrial Tool

Thank you for purchasing your 18" Band Saw from Sears

This unit will provide you with many years of reIiable service

Should the need exist for repair parts or service, simply

contact any Sears Service Center and most Sears, Roebuck

and Co stores Be sure to provide ail pertinent facts when

you call or visit. The model number of your 18" Band Saw

will be found on the upper cabinet door

All parts listed may be ordered from any Sears Service

Center and most Sears stores. If the parts you need are not

stocked locally, your order wilt be electronically transmitted

to the Sears Repair Parts Distribution Center for handling

When ordering repair parts, always give the following

information:

NAME OF ITEM: t8" Band Saw

MODEL NUMBER: 351 243951

PART NUMBER:

PART DESCRIPTION:

Sold by SEARS, ROEBUCK AND CO., Chicago, IL 60684 UoS,A. ©

Part No. 6666.03 April 1993