Craftsman 351214140 User Manual BAND SAW/STAND Manuals And Guides 1010756L

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Operator's Manual

BAND SAW WITH STAND
Model No.
351.214140

CAUTION:

Read and follow

all Safety Rules and Operating
Instructions before First Use
of this Product.

Sears, Roebuck and Co., Hoffman
www.sears.com/craftsman

25923.00 Draft (12/19/07)

Estates, IL 60179 U.S.A.

Warranty
....................................
SafetyRules...............................
Unpacking..................................
Assembly.................................
Installation
.................................
Operation................................
Maintenance
.............................
Troubleshooting
...........................
PartsIllustrations
andLists..................

ONE-YEAR FULL WARRANTY
CRAFTSMAN TOOL

2
2-3
3
3-4
4-5
5-10
10-11
12-13
14-17

This warranty gives you specific legal rights and you may
also have other rights which vary from state to state.

•
•

•

FOR JOB

Be alert and think clearly. Never operate power tools
when tired, intoxicated or when taking medications
that cause drowsiness.

WORK

the correct gauge.
Keep visitors at a safe distance from work area.
Keep children out of workplace. Make workshop
childproof. Use padlocks, master switches or remove
switch keys to prevent any unintentional use of
power tools.

BE MAINTAINED

•

Always unplug tool prior to inspection.

•

Consult manual for specific maintaining and
adjusting procedures.

•

Keep tool lubricated and clean for safest operation.

•

Remove adjusting tools. Form habit of checking to
see that adjusting tools are removed before switching machine on.

•

Keep all parts in working order. Check to determine
that the guard or other parts will operate properly
and perform their intended function.

•

Check for damaged parts. Check for alignment of
moving parts, binding, breakage, mounting and any
other condition that may affect a tool's operation.

•

A guard or other part that is damaged should be
properly repaired or replaced. Do not perform
makeshift repairs. (Use parts list provided to order
replacement parts.)

•

Use right tool for job. Do not force tool or attachment
to do a job for which it was not designed.

•

Disconnect tool when changing blade.

•

Avoid accidental start-up. Make sure that the tool is
in the "off" position before plugging in.

•

Do not force tool. It will work most efficiently at the
rate for which it was designed.

•

Keep hands away from moving parts and cutting
surfaces.

•

Never leave tool running unattended. Turn the power
off and do not leave tool until it comes to a complete
stop.

•

Do not overreach. Keep proper footing and balance.

•

Never stand on tool. Serious injury could occur if tool
is tipped or if blade is unintentionally contacted.

•

Know your tool. Learn the tool's operation, application and specific limitations.

•

Use recommended accessories (refer to page 17).
Use of improper accessories may cause risk of
injury to persons.

AREA FOR JOB

Keep work area clean. Cluttered work areas invite
accidents.

Extension cords should have a grounding prong and
the three wires of the extension cord should be of

KNOW HOW TO USE TOOL

Wear proper apparel. Do not wear loose clothing,
gloves, neckties, rings, bracelets or other jewelry
which may get caught in moving parts of machine.
Wear protective hair covering to contain long hair.
Wear safety shoes with non-slip soles.
Wear safety glasses complying with United States
ANSI Z87.1. Everyday glasses have only impact
resistant lenses. They are NOT safety glasses.
Wear face mask or dust mask if operation is dusty.

PREPARE

•

Estates, IL 60179

WARNING:
For your own safety, read all of the
instructions and precautions before operating tool.
CAUTION: Always follow proper operating procedures
as defined in this manual -- even if you are familiar
with use of this or similar tools. Remember that being
careless for even a fraction of a second can result in
severe personal injury.

•
•
•

Work area should be properly lighted.
Proper electrical receptacle should be available for
tool. Three-prong plug should be plugged directly
into properly grounded, three-prong receptacle.

TOOL SHOULD

This warranty applies only while this tool is in the
United States.

•

•
•

•

If this tool is used for commercial or rental purposes, this
warranty will apply for only 90 days from the date of
purchase.

BE PREPARED

Do not use power tools in dangerous environments.
Do not use power tools in damp or wet locations. Do
not expose power tools to rain.

•

If this Craftsman tool fails due to a defect in material or
workmanship within one year from the date of purchase,
call 1-800-4-MY-HOME® TO ARRANGE FOR FREE
REPAIR (or replacement if repair proves impossible).

Sears, Roebuck and Co., Hoffman

•

Handle workpiece correctly. Protect hands from possible injury.

Hardware bag includes:
E _J'-18 x ½" Carriage Bolt (16)

Turn machine off if it jams. Blade jams when it digs
too deeply into workpiece. (Motor force keeps it
stuck in the work.) Do not remove jammed or cut off
pieces until the saw is turned off, unplugged and the
blade has stopped.

F Foot (4)
G _6"-18 x 1" Hex Head Bolt (6)

H _6" Flat Washer (28)
I

_J'-18 Hex Nut (22)

WARNING:
The operation of any power tool can result
in foreign objects being thrown into the eyes, which can
result in severe eye damage.

I HJ_"

"/D

Always wear safety goggles complying with United
States ANSI Z87.1 (shown on package) before commencing power tool operation. Safety goggles are available through your Sears catalog.

Check for shipping damage. If damage has occurred, a
claim must be filed with carrier. Check for completeness. Immediately report missing parts to dealer.
The band saw comes assembled as one unit. Additional
parts which need to be fastened to the saw should be
located and accounted for before assembling (see
Figure 1).

Figure 2 - Unpacking and Assembling

Stand

IMPORTANT: Bed is coated with a protectant. To
ensure proper fit and operation, remove coating.
Coating is easily removed with mild solvents, such as
mineral spirits, and a soft cloth. Avoid getting cleaning
solution on paint or any of the rubber or plastic parts.
Solvents may deteriorate these finishes. Use soap and
water on paint, plastic or rubber components. After
cleaning, cover all exposed surfaces with a light coating
of oil. Paste wax is recommended for bed top and vise

A Pulleys Cover Assembly (1)
B Vertical Table (1)
C Vertical Table Reinforcing Bracket (1)
D Workstop Assembly (1)
E Crank Handle Assembly (1)
Parts bag includes: #10-24 x _" pan head screw,
#10-24 hex nut, two ¼-20 x ½" hex head bolts, two
¼" flat washers, ¼"-20 x _" flat head screw and ¼"-20
hex nut.

jaws.

CAUTION: Do not attempt assembly if parts are missing. Use this manual to order replacement parts.

ASSEMBLE

STAND

Refer to Figure 2.
NOTE: Finger tighten bolts and nuts until assembly is
complete. Then tighten all fasteners securely.
.

Attach two legs (A) to flanges (D) using carriage
bolts, washers and nuts (E, H and I).

.
The stand comes unassembled and packed along with
the Band saw in the same box. Locate and identify all
parts before attempting assembly (see Figure 2).

Attach two short braces (C) and two long braces (B)
to preassembled legs and flange brackets using carriage bolts, washers and nuts (E, H and I).

Do not fully tighten bolts and nuts until bands saw is
mounted on the stand.

A Leg (4)

Install leveling feet on all four corners of the stand.

B Long Brace (2)

MOUNT

C Short Brace (2)

Lay band saw on its side on cardboard or other suitable material to prevent scratches

•

Attach preassembled stand to band saw's base
using hex head bolts, washers and nuts (G, H and I).

•

Finger tighten bolts and nuts.

Figure 1 - Unpacking Band Saw

D Flange (2)

BAND SAW

Carefully set the band saw and stand assembly
upright on the floor.

ELECTRICAL

Fully tighten all bolts and nuts.

from power source any time wiring is inspected.

Adjust the leveling feet as necessary.

POWER

INSTALL
•
•

CRANK

WARNING:

HANDLE

COVER

Running the unit on voltages which are not within the
range may cause overheating and motor burn-out.
Heavy loads require that the voltage at motor terminals
be no less than the voltage specified. Power supply to
the motor is controlled by a single pole toggle switch.

Refer to Figure 16, page 16.
. Remove v-belt.
.

Slide left side slot in the cover plate over transmission shaft.

Lift up the motor and align its shaft with second slot
in the cover plate.

Slide second slot in the pulley cover plate over motor
shaft.

Install V-belt in proper pulleys combination for
desired blade speed. See Blade Speed Chart on
page 8.

GROUNDING

STOP ASSEMBLY

Grounding plug should be plugged directly into a
properly installed and grounded 3-prong groundingtype receptacle, as shown (Figure 3).

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 shock.

Refer to Figure 15, page 14.
•

Insert end of work stop rod (Key No. 40) into bed
(Key No. 36). Secure position of rod with set screw
(Key No. 34).

•

Slide work stop (Key No. 41) onto work stop rod and
secure with set screw (Key. No. 15).

•

Check with a qualified electrician if grounding
instructions are not understood or if in doubt as to
whether the tool is properly grounded.

This tool is equipped with an approved 3-conductor
cord rated at 150V and a three prong grounding type
plug (see Figure 3) for your protection against shock
hazards.

Align mounting holes in the pulleys cover plate with
corresponding holes on the frame and secure it with
hex head bolts (Key No. 32) and washers (Key No.
31).

ATTACH WORK

INSTRUCTIONS

WARNING: Improper connection of equipment
grounding conductor can result in the risk of electrical
shock. Equipment should be grounded while in use to
protect operator from electrical shock.

o Tension V-belt by adjusting motor position and blocking it with thumb screw Key No. 42. Properly tensioned V-belt should deflect about _" when applying
pressure with your thumb.
.

SOURCE

The motor is designed for operation on the voltage and
frequency specified. Normal loads will be handled safely on voltages not more than 10% above or below the
specified voltage.

Slide crank handle on the shaft and tighten set
screw.

PULLEY

Make sure unit is off and disconnected

Band Saw is prewired for 115 volt, 60 HZ power source.
See figure 3 for wiring schematic.

Line up set screw on crank handle with flat on the
lead screw shaft.

INSTALL

CONNECTIONS

Properly Grounded Outlet
Grounding Prong,

Adjust the work stop as described in Operation,
page 10.

3-Prong Plug

The band saw is supplied with a _ HP motor.

Figure 3 - 3-Prong Receptacle
WARNING:
Do not permit fingers to touch the terminals of plug when installing or removing from outlet.

The 115 Volt AC motor has the following specifications:

Plug must be plugged into matching outlet that is
properly installed and grounded in accordance with
all local codes and ordinances. Do not modify plug
provided. If it will not fit in outlet, have proper outlet
installed by a qualified electrician.

Inspect tool cords periodically, and if damaged, have
repaired by an authorized service facility.

MOTOR

Horsepower .................................
Voltage ...............................
Amperes ...............................
Hertz .....................................
Phase ..................................
RPM ....................................

115/230
7.5/3.7
60
Single
1725

WARNING:
All electrical connections must be performed by a qualified electrician.

•

EXTENSION CORD LENGTH

Green (or green and yellow) conductor in cord is the
grounding wire. If repair or replacement of the electric cord or plug is necessary, do not connect the
green (or green and yellow) wire to a live terminal.

Where a 2-prong wall
must be replaced with
receptacle installed in
Code and local codes

Wire Size

A.W.G.

Up to 25 ft ..................................

NOTE: Using extension cords over 25 ft. long is not
recommended.

receptacle is encountered, it
a properly grounded 3-prong
accordance with National Electric
and ordinances.

WARNING:
This work should be performed by a qualified electrician.

A temporary 3-prong to 2-prong grounding adapter (see
Figure 4) is available for connecting plugs to a two pole
outlet if it is properly grounded.
Grounding Lug,

3-Prong

Make Sure

Connected
To A Known
Ground
This Is

AdapteS_

1,2, 3, 4 - Motor Leads
U, V - Power Supply

Figure 4 - 2-Prong Receptacle with Adapter

Figure 5 - Motor Wiring

Do not use a 3-prong to 2-prong grounding adapter
unless permitted by local and national codes and
ordinances. (A 3-prong to 2-prong grounding adapter
is not permitted in Canada.) Where permitted, the
rigid green tab or terminal on the side of the adapter
must be securely connected to a permanent electrical ground such as a properly grounded water pipe,
a properly grounded outlet box or a properly grounded wire system.

The gravity controlled down feed can be controlled by
adjusting coil spring tension. Features include 00-45 °
vise for angle and miter cutting an adjustable work stop.
Saw is controlled by toggle switch.

230 VOLT OPERATION

•

Diagram

The 5 x 6" Horizontal and Vertical Metal Cutting Band
Saw provides speed with quality of cut for fabrication
shops, machine shops, maintenance departments and
contractors. Blade speed ranges from 80 to 200 FPM to
cut a variety of material ranging form cast iron, tool
steel, bronze, aluminum and plastic.

Many cover plate screws, water pipes and outlet boxes are
not properly grounded. To ensure proper ground, grounding means must be tested by a qualified electrician.

•

To use the band saw with a 230V, single-phase
power supply, have a qualified electrician attach a
230 volt, 20/30A 3-prong plug onto band saw line
cord and install the proper connectors and receptacles to power supply.

SPECIFICATIONS
Capacity

............................

See wiring diagram (Figure 5) for motor wiring
instructions.

EXTENSION

B30V

2-Prong Receptacle

•

115V

CORDS

5" Rounds
5 x 6_" Rectangle at 90 °
6_ x _" Rectangle at 90 °
5_" Square at 90 °
3 x 9" Rectangle at 45 °
3" Square at 45 °

Blade speeds ................
Blade size .......................

•

The use of any extension cord will cause some drop
in voltage and loss of power.
• Wires of the extension cord must be of sufficient size
to carry the current and maintain adequate voltage.
• Use the table to determine the minimum wire size

80, 120 and 200 FPM
1/2x .025 x 64_"

Blade wheels ..............................

73/8"

Overall dimensions:
Head in Horizontal Position ............

(A.W.G.) extension cord.

Head in Vertical Position .............

•

Use only 3-wire extension cords having 3-prong
grounding type plugs and 3-pole receptacles which
accept the tool plug.

Weight .................................

•

If the extension cord is worn, cut, or damaged in any
way, replace it immediately.

36 x 14 x 17"
42 x 151/2x 56"
106 Ibs

SAFETY

PRECAUTIONS

WARNING:
cautions.

The drive gears run in an oil bath and will not require
a lubricant change more often than once a year,
unless the lubricant is accidently contaminated or a
leak occurs because of improper replacement of the
gear box cover. During the first few days of operation, the worm gear drive will run hot. Unless the
temperature exceeds 200 ° F, there is no cause for
alarm.

Under normal operation, gearbox oil should be
replaced once a year.
The gearbox is designed to take 6 ounces of Mobil
630 gear oil.

Always observe the following safety pre-

Whenever adjusting or replacing any parts on the
band saw turn, switch off and remove plug from
power source.

Make sure the stops are positioned and that the
automatic shut-off is operating.

Check that the gear box has the proper amount of
lubricant.

Make sure the blade guides are positioned correctly.

Use the appropriate blade for the workpiece that is
being cut.

Use a sharp blade. Replace dull blades or blades
which are missing teeth.

Make sure the blade is tensioned properly and going
in the right direction.

Use the proper blade speed for the work.

For optimum performance, do not stall the motor or
reduce the speed. Use the proper feed pressure.

Secure the workpiece in a stable position.

Check that all guards are attached.

After turning the switch on, let the blade come to full
speed. Then lower the blade onto the workpiece slowly.

Keep hands away from the blade and all moving parts.

Always wear eye protection or face shield.

HORIZONTAL

.
.

1. Remove gearbox cover and drain old oil (there is
no oil plug)
2. Pour 6 ounces of fresh Mobil 630 gear oil in the
gearbox.
3. Install new gasket.
4. Install gearbox cover and fully tighten all bolts.
.

Blade guides hold the cutting portion of the blade in a
plane which is perpendicular to both the workbed and
the stationary vise and keep the blade in line with its
natural path around the blade wheels.

Horizontal stop bolt (Key No. 33) controls the position of
the head at the end of the cut. Head should contact the

Inner guide bearings on the upper and lower guide assemblies keep the blade in line with the blade wheels. Outer
guide bearings keep the blade against the inner bearings.

horizontal stop when teeth are 1/8"below the surface of
the workbed.

Entire guide assembly is positioned at the factory to
produce the proper twist and should not need adjustment, however, the position of blade guides should be
checked often.

STOP ADJUSTMENT

Refer to Figure 15, page 14.
Place head in the horizontal position.

•

Loosen the nuts (Key No. 35) on the horizontal stop
bolt. Adjust the horizontal stop bolt so that the teeth
are 1_,,below the surface of the workbed.

•

Tighten the nuts to lock the position.

AUTOMATIC

GUIDES

Band saw blade has to be twisted relative to the plane
in which it rotates. Blade must be properly positioned
relative to the workbed.

STOP

•

The seal between the gearbox and the cover plate is
a gasket (Key No. 29). If cover plate is removed, the
surface should be cleaned and a new gasket should
be applied.

BLADE

Refer to Figure 15, page 14.

HORIZONTAL

To replace gearbox oil:

NOTE: Since the blade position is related to both table
and the vise jaws, the relative position of the jaw to the
table is important. When assembled, the stationary jaw
must be perpendicular to the surface of the workbed.

CHECKING

SHUTOFF

BLADE GUIDES

The switch is shut off when the blade passes through
the plane of the workbed. The switch should be shut off
as soon as the cut is finished.

Refer to Figure 16, pages 16.
.

Check that the blade teeth are perpendicular to the
machined surface of the base.

IMPORTANT: Make sure the action of the switch is not
restricted by the horizontal stop.

Spread the blade guides as far apart as possible.

Check that vise jaws are parallel and set for 90 ° cutoff.

LUBRICATION

Position the vise jaws to have the maximum separation that will not interfere with the blade guides.

With the head in horizontal position, use a square
against face of rear vise jaw and check that jaw is
90 ° to the side of blade.

Check that the blade is in line with tracking and drive
wheels (Key Nos. 11 and 50).
Raise the head.

Refer to Figure 16, page 16.
.

All ball bearings are permanently lubricated and
should not require further lubrication.

If the tracking wheel or head pivot is disassembled
for any reason, wipe off the old and reapply new
grease before assembly.

Look straight on at the cutting edge of the blade.

Loosen the socket head bolt.

Make sure that the blade sides are parallel to the
sides of the bearings.

Adjust the bracket to the correct position.

Tighten the socket head bolt.

Make sure that blade guide bearings touch the
blades and can still be rotated by hand.

Check the guide bearings. Repositioning the blade
guide bracket can alter the previous adjustments.
Readjust if necessary.

ADJUSTING

GUIDE

BEARINGS

Refer to Figure 6.

BLADE

If the blade is not perpendicular to the base or not in
line with the blade wheels, adjustment is necessary.
NOTE: There should be .000-.001" clearance between
the blade and the guide bearings.

Using the proper blade is
correct cutting conditions.
depending on the specific
blade. Some simple rules
all blades.

SELECTION
important for setting up the
Blades are made differently
application intended for the
can still be applied to almost

Always remember to have at least three teeth in contact
with the work during a cut. When three teeth are in contact, the blade cannot straddle the work. This prevents a
tooth that enters the cut from encountering more material than it can remove.
.

Hex Nut

When cutting harder materials, the suggested minimum
number of teeth in contact is six because "shocking" on
harder materials has a more detrimental effect on the
blade. The optimum number of teeth in contact with the
workpiece distributes the blade forces among more
teeth to increase cutting efficiency and reduces blade
wear. The optimum range is from 6-12 teeth in contact
for soft materials, up to 12-24 teeth in contact for harder
materials.

Eccentric
Figure 6 - Adjusting Guide Bearings

The guide bearings are adjusted using an eccentric
location system. The inner guide bearings are fixed and
cannot be adjusted. The outer guide bearings are
mounted to eccentric shafts and can be adjusted.
• Loosen hex nuts with a wrench. Rotate the eccentric
shaft to locate bearings in desired positions.
•

Maintain eccentric shaft position and tighten hex nuts.

CHECKING

THRUST

GUIDE

BRACKETS

Refer to Figure 7.
°

Always have the maximum number of teeth in contact with the work to prevent the gullets of the teeth
from being clogged.

When choosing a blade, the overall size of the work is
not as important as the thickness average. The thickness average is the average width of the material which
the blade will contact during each cut. Figure 11
describes how the thickness average should be
calculated. The thickness average should be used when
choosing a blade for the optimum number of teeth in
contact, however, the three teeth rule should be applied
to the minimum thickness, not the thickness average.

BEARINGS

The thrust bearings should be .003-.005" (average
thickness of a piece of paper) away from back of blade.
The thrust bearings are adjusted by moving the guide
bracket.

ADJUSTING

"Shocking" occurs when blade teeth contact too
much material. This can strip the teeth from the
blade.

Keeping a selection of sharp blades on hand will yield
better cuts. The blades may last longer because they
are less likely to be misused when the proper blade is
available.

If the bearings are positioned properly and the blade
is not square, one or both blade guide brackets must
be adjusted.

Every band saw should have at least one replacement
blade of each type used. Blade breakage is unpredictable. Consult a blade manufacturer for detailed
information about available blades for specific uses.

Hex Nut

REMOVING

BLADE

Refer to Figure 16, page 16.
. Raise head to vertical position and open the blade
cover.
Loosen the outer guide bearings on the upper and
lower guide assemblies. No other guide bearings
should be moved.

Guide Bracket

With one hand, pinch the blade and the tracking
wheel together to protect against the possibility of
the blade popping off when tension is released.

Figure 7 - Adjusting Guide Brackets

•
•

Release the tension by slowly revolving the knob
(Key No. 12 counterclockwise.
Remove the blade.

REPLACING

A sharp fold indicates
proper tracking.

THE BLADE

•

Make sure the outer guide bearings are loose.

•

Make sure the teeth are pointing in the right direction
(see Figure 8).

Cut or ripped paper
indicates that the
blade is riding against
the flange of the
wheel. Adjusting screw
needs to be turned
counterclockwise.

Figure 8 - Blade Direction
No fold indicates the
blade will ride off the
wheel. Adjusting screw
should be turned
clockwise.

•

Place the blade around the wheels and between the
guide bearings.

•

Hold the blade in position and apply tension.

•

Push the blade against the wheel flange.

•

Tighten the blade until it is properly tensioned. A properly tightened blade will ring slightly when the back of
the blade is plucked (like a string of an instrument).

BLADE

•

Adjust the outer guide bearings.

Refer to Figure 11, page 9.

•

Check for proper tracking (See Tracking Adjustment).

•

Figure 9 - Tracking

TRACKING
Proper tracking is achieved when the drive wheel and
idler wheel are aligned. A blade that is not tracking correctly can come off the blade wheels. Although adjustment is rarely required, tracking should be checked frequently.

Adjustments

SPEED

Choosing the proper blade speed is important for
extending the life of the blade. The speed determines
the available cutting force.

CAUTION: Turn motor off and disconnect power to
check tracking.

Harder materials require more force and are cut at a
slower speed. Softer materials are cut with less force at
higher speeds to ensure the proper removal of the
chips. The speed and corresponding force are related to
the power supplied to the blade. Three speeds are
available.

CHECK TRACKING

CHANGING

Refer to Figure 9.

When using your band saw always change the blade
speed to best suit the material being cut. The chart
below gives suggested settings for several materials.

•

Raise the head. Open the wheel cover.

•

Insert a piece of paper between the blade and the
left side of the idler wheel.

•

Lift the belt cover and rotate the blade by turning the
motor pulley.

•

Let the blade grab the paper. Rotate the pulley so
the paper goes around the wheel.

•

Refer to Figure 9 to determine if an adjustment is
needed.

TRACKING

SPEEDS

MATERIAL

ADJUSTMENT

Refer to Figures 9 and 16, pages 8 and 16.
The tracking is adjusted by tilting the tracking wheel.
The tilting is done with the set screw (Key No. 21) only
if the upper socket head bolts (Key Nos. 9 and 19) are
loose.
• Loosen the two socket head bolts.

SPEED

BELT GROOVE USED
MOTOR

DRIVEN

Tool, Stainless or
Alloy Steel
Bearing Bronzes

80 FPM

Small

Large

Mild Steel, Hard
Brass or Bronze

120 FPM

Medium

Soft Brass,
Aluminum, other
light materials

200 FPM

Large

Small

HELPFUL

CUTTING

HINTS

•

Never use a new blade to complete a previous
started cut.

•

When possible, do not start a cut on sharp corners.

•

Adjust the tilt with set screw. For correct tracking,
refer to Figure 9. Turn 1/,revolution at a time.

•

After installing new blade, check tension after a few
cuts.

•
•

Check the blade tension and adjust if necessary.
Recheck the tracking.

•

Once the proper position has been found, tighten the
bolts securely.

For correct blade tension, snap your finger against
the blade. A slight "ring" will sound if blade tension is
correct.

•

The harder the material the slower the cutting speed.

CUTTING

Most blade manufacturers have developed charts
and specifications to determine the best blade for
cutting various kinds and shapes of materials. Use
these as a general rule. The thinner the stock, the
finer the tooth pitch. Use the coarsest pitch possible
consistent with the above. Also, REMEMBER-- A
MINIMUM OF THREE TEETH MUST CONTACT
MATERIAL AT ALL TIMES.
Use of cutting oil is recommended
speeds.

FLUIDS

Using a cutting fluid can improve the cutting conditions
and keep them more consistent throughout the cut by
lubricating the blade, which reduces the friction
between it and the workpiece.

POSITIONING
Refer to Figure 11.

at higher blade

The vise is designed to keep the workpiece steady
while it is being cut. The vise should only have to counteract the cutting forces. Using the proper position will
help produce a safe and accurate cut. These general
rules about positioning apply to most situations.

FEED PRESSURE
Correct feed pressure holds the blade in the cut. Feed
pressure is supplied by the weight of the head.
Maximum material removal rate corresponds with the
proper pressure.
Optimum feed pressure ensures that maximum power
is used for cutting. If the feed pressure is too low, the
blade will not dig into the material properly. Too much
feed pressure will cause the blade to dig too deeply,
bogging down the motor, and possibly burning it out. In
addition, blade "shocking" could result.
Extra energy will be used to produce powdered chips
rather than smooth shavings; this will produce more
heat and dull the blade.

The workpiece should rest flat on the workbed without the need for side support. Some suggested configurations are shown in Figure 11.

The entire length of the work should be supported.
Do not balance the workpiece on the workbed. Use
support stands to prevent the work from falling off
after the cut.

Avoid positions which will cause the blade to encounter
sharp edges. If sharp corners cannot be avoided, file
down the point that the blade will contact.
•""

W -'"ff

CAUTION:
Do not attempt to increase feed pressure
by leaning on head.

REGULATING

FEED PRESSURE

The rate of feed is pre-set at the factory to its lowest
level.
.
.

File down sharp corner

Flats and Rectangles

To increase the feed, turn the feed adjustment
handle (at left of base) counterclockwise.
To decrease, turn clockwise.

Angle

o Do not adjust more than one turn at a time.
Proper feed is important; excessive pressure can break
the blade or stall the saw. Insufficient pressure dulls the
blade rapidly.
Rounds

To determine if the feed is incorrect, examine the chips
produced. When the blade is operating at the ideal feed
for the speed, the chips will be curled and continuous. If
the chips are thick and not continuous, the feed pressure
should be reduced. If the chips are powdery, the feed
pressure needs to be increased (Refer to Figure 10).
],_ r_
,_'_;

Rounds and I-Beam

Tubes

Curled shavings indicate correct feed
pressure.

#-i

t--- d -"

C-Beam
File down sharp corner

Thick discontinuous chips indicate too
much pressure. Turn knob clockwise.

/--k

Ii !!ii! l

Powdery chips indicate too little pressure.
Turn knob counterclockwise.

Hexagon
Figure 11 - Clamping Configurations
Average Calculation

Figure 10 - Determine Feed Pressure

Tee

and Thickness

WORK

STOP ADJUSTMENT
¼"-20 x _"
Flat Head Screws

Refer to Figure 15, page 14
•

Loosen the set screw (Key No 15) holding the work
stop (Key No 41 to the work stop rod (Key No 40)

•

Adjust the work stop casting to the desired length
position

•

Rotate the work stop to contact the workpiece as
close to the bottom as possible

•

Tighten the set screw

•

Do not allow the blade to rest on the workpiece while
the motor is shut off

•

Flats and rectangles have thickness averages of "W"
(see Figure 11, page 9)

•

Rounds and many sided regular cross-sections
thickness average of 075d

have
Figure 13 -Installing Vertical Table

• Tubes and structurals have thickness average of 25t
NOTE: See Blade Selection for more information on
thickness average calculation

CHECK THE BLADE

•

Place vertical table over guide bracket and secure
with two ¼"-20 x ½" flat head screws
Flat Head Screw
and Hex Nut

PATH

Before the saw is plugged in, check to see that blade
path is clear and that:
•

All blade guards are in place

•
•

There is no debris inside the blade guard or covers
There is no debris on the blade or blade wheels

•

All hoses and line cords are out of the blade path

WARNING:
Do not operate saw unless all guards are
in place and the workpiece is the only object that will
encounter the blade teeth

CONVERTING

FOR VERTICAL

USE

Refer to Figure 12, 13 and 14
Figure 14 -Installing

Notching, slitting, contour work may be done with the
saw in the vertical position in the following manner
Deflector Plate
¼"-20 x _"
Flat Head Screw

¼"-20 x _"
Flat Head Screw

Vertical Table Reinforcing Bracket

•

Attach one end of reinforcing bracket to vertical table
with flat head screw and hex nut

•

Attach the other end of reinforcing bracket to head
casting using guide lock hex head bolt and washer
(see Figure 14)

•

To adjust vertical table height loosen guide lock hex
bolt, set table to required height and retighten guide
lock hex bolt

Guide
Guard

Refer to Figure 15, page 14
Steps required to keep the saw in optimum operating
condition have been described under "Operating
Instructions" The Safety Precautions should be performed before operation

Figure 12 - Removing Deflector Plate and Guide Guard

For proper maintenance:

•
•

Rotate the head to the vertical position
Remove two W'-20 x Y2"flat head screws

•

Keep saw clean and dry Sweep off spots where
chips have collected

•

Remove deflector plate and guide guard

•

Lubricate the unpainted surfaces with a light application of medium consistency machine oil to prevent
corrosion after cleaning

Grease the vise lead screw (Key No. 17) if vise
action becomes difficult.

Replace dull blades and blades from which teeth
have been stripped. A clean saw with a sharp blade
will yield the best cut.

Internal parts of the band saw have been completely
lubricated at the factory and do not need to be relubricated.

Replace gearbox oil once a year with 6 oz. of fresh
Mobil 630 gear oil.
WARNING:
Make certain that the saw is disconnected
from the power source before attempting to service or
remove any component.
WARNING:
Any attempt to repair the motor may create a hazard unless repair is done by qualified service
technician.
Repair service is available at your nearest Sears Store.

SYM PTO M
Blade cuts (crooked)

Bad cuts (rough)

Blade is twisting
Unusual wear on side
or back of blade

Motor will not start

POSSIBLE

CORRECTIVE

CAUSE(S)

1. Work not square

1. Adjust vise to be square with blade

2. Feed pressure too great
3. Guide bearings not adjusted
properly

2. Reduce pressure by increasing spring tension
3. Adjust guide bearings

4. Inadequate blade tension
5. Blade guides spaced out too much
6. Dull blade

4. Increase blade tension a little at a time

7. Speed incorrect
8. Blade guide assembly loose

7. Check page 8 for recommended
8. Tighten

9. Blade guide bearing assembly
loose

9. Tighten

5. Move guides as close to work as possible
6. Replace blade
speeds

10. Blade tracks too far away from
wheel flanges

10. Track blade properly according to instructions
under "Operation," page 8

11. Guide bearing worn

11. Replace

1. Too much speed or feed

1. Reduce speed or feed

2. Blade has too few teeth per inch

2. Replace with finer toothed blade

1. Cut is binding blade
2. Blade guides worn

1. Decrease feed pressure
2. Replace

3. Blade guide bearings not adjusted
properly
4. Blade guide bearings not adjusted
properly
5. Feed pressure too great

3. Adjust guide bearings (see page 7)
4. Tighten bearings

1. No electrical power to motor

1. Check electrical wiring to motor for continuity

2. Low voltage
3. Defective On/Off switch;
defective line cord

2. Check power line for proper voltage
3. Replace defective parts before using
band saw again
4. Inspect lead terminals on motor for loose or
open connections

4. Open circuit in motor or
loose connections
5. Motor protector open
(only if your motor is equipped
with an overload protector)
6. Burned out motor

Motor will not start;
fuses or circuit
breakers blow

ACTION

5. Reduce feed pressure

5. Reset protector after motor has cooled

Any attempt to repair this motor may create a
hazard unless repair is done by an authorized
Sears Service Center. Replacement motors are
available

1. Short circuit in line cord or plug

1. Inspect line cord or plug for damaged insulation
and shorted wires

2. Short circuit in motor or
loose connection

2. Inspect all lead terminals on motor for loose or
worn insulation on wires

3.Incorrect fuses or circuit breakers in
power line
4. Motor overloaded

3. Install correct fuses or circuit breakers

1. Power line overloaded
Motor fails to develop
full power (power
2. Undersized wires or cords too long
output of motor
3. General overloading of power
decreases rapidly) with
company's facilities
decreased voltage at
motor terminals

4. Reduce load on motor
1. Reduce the load on the power line
2. Increase wire sizes or reduce length of cords
3. Request a voltage check from the
power company

SYM PTO M
Motor overheats

Motor stalls (resulting
in blown fuses or
tripped circuit breakers)

Frequent opening of
fuses or circuit breakers
Motor problems
in general
Teeth ripping from
blade

POSSIBLE

CORRECTIVE

CAUSE(S)

1. Motor overloaded
2. Air circulation around motor
restricted

1. Reduce load on motor
2. Clean motor to provide normal air circulation
around motor

1. Short circuit in motor; connections
loose; or shorted terminals or worn
insulation on lead wires

1. Inspect terminals in motor for damaged
insulation and shorted wires

2. Low voltage
3. Incorrect fuses or circuit breakers
4. Motor overloaded

2. Correct the low line voltage conditions
3. Install correct fuses or circuit breakers
4. Reduce load on motor

1. Motor overloaded

1. Reduce load on motor

2. Incorrect fuses or circuit breakers

2. Install correct fuses or circuit breakers

Various causes

To troubleshoot and service motor consult qualified
technician

1. Teeth too coarse for work
2. Too heavy feed
3. Too slow speed
4. Vibrating workpiece

1. Use finer tooth blade
2. Decrease feed pressure
3. Increase speed
4. Clamp work securely
5. Use coarse tooth blade or use brush to remove
chips

5. Gullets loaded

Motor running too hot

1. Reduce tension on blade
2. Use finer tooth blade

1. Blade tension too high
2. Blade too coarse for work
(pipes especially)
3. Blade too fine for work

3. Use coarser tooth blade

(heavier, soft material)
4. Gears need lubrication
Excessive blade
breakage

4. Check gearbox oil

1. Material loose in vise
2. Incorrect speed or feed
3. Teeth too coarse for material

1. Clamp work securely
2. Check Machinist Handbook

4. Incorrect blade tension
5. Teeth in contact with work before
saw is started

Premature blade
dulling

ACTION

3. Check Machinist Handbook for recommended
blade type
4. Adjust to where blade just does not slip on wheel
5. Place blade in contact with work after
motor is started

6. Blade rubs on wheel flange
7. Misaligned guides
8. Blade too thick for wheel diameter

6. Adjust tracking

1. Teeth too coarse
2. Too much speed
3. Inadequate feed pressure
4. Hard spots or scale in/on material
5. Work hardening of material

1. Use finer tooth blade

(especially stainless steel)
6. Blade installed backwards
7. Insufficient blade tension

7. Adjust guide bearings
8. Use thinner blade

2. Try next lower speed
3. Decrease spring pressure
4. Reduce speed, increase feed of saw
5. Increase feed pressure by reducing
spring tension
6. Remove blade, twist inside out and reinstall blade
7. Increase tension to proper level

Model 351.21 4140
Figure

15 - Replacement

Parts Illustration

for Base and Stand

30
29

/ 33
,/
35

!
15
6

KEY
NO.

PART NO.

DESCRIPTION

25977.00

Pivot Shaft

Leg

25936.00

STD523115

Spacer
_-18 x 1_" Hex Head Bolt

3
1

25963.00

Long Brace
Short Brace

STD551131

_" Lock Washer

STD533120

_-18 x _" Carriage Bolt

25979.00

25964.00

STD524120

Stationary Vise Jaw
7_-14 x 2" Hex Head Bolt

1
1

STD551031

Flange
_" Flat Washer

STD503105

_-18 x _" Set Screw

STD541031

_"-18

STD541043

_"-14

STD523110

_-18 x 1" Hex Head Bolt

25980.00

Bed

25965.00

Vertical Table

25981.00

Grommet

06634.00

¼-20 x ½" Flat Head Screw

25982.00

Spacer

25966.00

25983.00

Cord Clamp

STD541025

Support Bracket
¼"-20 Hex Nut

25984.00

Work Stop Rod

25967.00

Handle Wheel

25985.00

00667.00

_-18 x _6" Set Screw

STD551210

Work Stop
#10 Serrated Washer

1
2

01434.00

STD541010

#10-24 Hex Nut

25968.00

3CM1-10 Retaining Ring
Lead Screw

STD551010

#10 Flat Washer

25969.00

Lead Nut

STD511007

#10-24 x _" Pan Head Screw

25970.00

Feed Control Handle

25989.00

STD523107

_-18 x _" Hex Head Bolt

STD511002

Toggle Switch
#10-24 x ¼" Pan Head Screw

1
2

25971.00

Bracket

25990.00

Scale

25972.00

Bracket

25991.00

Movable Vise Jaw

25973.00

Eyebolt

STD551037

_" Flat Washer

25974.00

STD523712

_-16 x 1¼" Hex Head Bolt

25975.00

Spring
Pivot Bracket

25986.00

#8-16 x 1_,,Thread Forming Screw

01057.00

Knob

25923.00

Operator's

25976.00

Head Lock Pin

PART NO.

DESCRIPTION

25960.00

Foot

25961.00

25962.00

*
A

Hex Nut

QTY.

Standard hardware item available locally
Not Shown

QTY.

Hex Nut

Manual

Model 351.21 4140

Figure

16 - Replacement

Parts Illustration

for Head
.33
.34
35

32
31

j!
27
./
28

28
23

25_

53
17

KEY
NO.

PART NO.

DESCRIPTION

25941.00

¼-20 x _" Round Head Screw

00730.00

Gear Box Pulley
1/2-12x 1-_" Hex Head Bolt

Blade 641/2x _" x 14TPI

25942.00

Gasket

3AM1-15 Retaining Ring
_-18 x _" Set Screw

1
2

25943.00

Gear Box Cover

STD551025

¼" Flat Washer

Blade Guard, Left
#10-24 x ¼" Round Head Screw

1
2

STD522503

¼-20 x _" Hex Head Bolt

STD511005

#10-24 x ½" Pan Head Screw

Blade Guide Assembly (Left)
_-18 x _" Hex Head Bolt

1
8

STD541010

#10-24 Hex Nut

STD523707

25944.00

STD551031

_" Flat Washer

25945.00

Motor Pulley Cover Assembly
Motor Cord

25930.00

Idler Wheel Assembly

25946.00

25931.00

00067.00

1
3

STD551037

Tension Adjustment Knob
_" Flat Washer

Motor Pulley
Line Cord

25947.00

25932.00

25948.00

25933.00

1
1

Spring
Nut

6x5x25mmKey
Motor

STD324220

V-Belt

25934.00

Guide Plate

25949.00

Knob

25935.00

¼-20 x %" Hex Head Bolt

25950.00

Motor Mount Plate

STD541031

_6-18 Hex Nut

PART NO.

DESCRIPTION

25925.00

Blade Cover

25926.00

25927.00

00533.00

STD503103

25928.00

02607.00

25929.00

QTY.

with Washer

QTY.
1

1
1
1

2
1

STD523712

_-16 x 1¼" Hex Head Bolt

STD523112

Spacer
_-18 x 1¼" Hex Head Bolt

25951.00

25937.00

Tension Block

25952.00

Transmission
Head

00741.00

_-18 x _" Set Screw

25953.00

Blade Guide Assembly (Right)

03989.00

Knob

25954.00

25938.00
25939.00

1
1

25955.00

Worm Gear Shaft Assembly
15 x 35 x 7mm Oil Seal

Blade Guard, Right
Drive Wheel

00975.00

5 x 5 x 25mm Key

25940.00

25956.00

25957.00

Spacer
Shut Off Bracket

00739.00

2
6

Bearing Cover
#8-32 x _" Flat Head Screw

25936.00

*
A

Recommended

Standard hardware item available locally
Not Shown

Gear Assembly

Accessories

641/2x _" x 10/14 TPI Bimetal Blade

9-26625

641/2x _" x 10/18 TPI Bimetal Blade

9-26626

NOTES

Your Home
For expert troubleshooting

and home solutions advice:

www.managemyhome.com

For repair - in your home - of all major brand appliances,
lawn and garden equipment, or heating and cooling systems,
no matter who made it, no matter who sold it!
For the replacement parts, accessories and
owner's manuals that you need to do-it-yourself.
For Sears professional installation of home appliances
and items like garage door openers and water heaters.

1-800-4-MY-HOME ®
Call anytime,

(1-800-469-4663)

day or night (U.S.A. and Canada)

www.sears.com

www.sears.ca

Our Home
For repair of carry-in items like vacuums, lawn equipment,
and electronics, call anytime for the location of your nearest
Sears Parts & Repair Service

1-800-488-1222

(U.S.A.)

1-800-469-4663

www.sears.com

To purchase a protection

1-800-827-6655

(Canada)

www.sears.ca

agreement

(U.S.A.)

Para pedir servicio de reparaci6n
a domicilio, y para ordenar piezas:

1-888-SU-HOGAR

Center

on a product serviced by Sears:

1-800-361-6665
Au Canada

pour service en fran(_ais:

1-800-LE-FOYER

(1-800-533-6937)
www. se a rs. ca

(1-888-784-6427)

Trademark / TM Trademark / SM Service Mark of Sears Brands, LLC
® Marca Registrada / rM Marca de Fabrica / SM Marca de Servicio de Sears Brands,
MC Marque de commerce / MD Marque d6posee de Sears Brands, LLC

(Canada)

® Registered

LLC

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Craftsman 351214140 User Manual BAND SAW/STAND Manuals And Guides 1010756L

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