Craftsman 137283290 User Manual 4 X 36 BELT/DISC SANDER Manuals And Guides L0805066

CRAFTSMAN Sander Manual L0805066 CRAFTSMAN Sander Owner's Manual, CRAFTSMAN Sander installation guides

User Manual: Craftsman 137283290 137283290 CRAFTSMAN 4 X 36 BELT/DISC SANDER - Manuals and Guides View the owners manual for your CRAFTSMAN 4 X 36 BELT/DISC SANDER #137283290. Home:Tool Parts:Craftsman Parts:Craftsman 4 X 36 BELT/DISC SANDER Manual

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Owner's ManuaW

4"x 36" Be_t

6" Disc

/D_SCSANDER

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37J2 LISTD

CAUTWON:

Before using this Belt /Disc Sander,

read this manual and follow

all its Safety Rules and

Operating Instructions.

o Safety Rnstructions

o Rnstailation

o Operation

o Maintenance

o Parts List

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Sears Canada lnco, TorOnto M5B 2B8

Part No. 137283290001 l

SECTION PAGE

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

Product Specifications ....................................................... 2

Safety _nstruct]ons .......................................................... 3

Accessories and Attachments ................................................. 6

Carton Contents ............................................................ 6

Know your Belt/Disc Sander .................................................. 7

AssembUy and Adjustments ................................................... 8

Operation ................................................................. 14

Maintenance .............................................................. 16

Troubleshooting Guide ...................................................... 17

Parts ..................................................................... 18

FULL TWO YEAR WARRANTY

If this product fails due to a defect in material or workmanship within two years from the date of purchase, Sears

will at its option repair or replace it free of charge.

Contact a sears Service Center for repair.

If this products is used for commercial or rental purposes, this warranty appplies only for 90 days from the date

of purchase.

This warranty is in addition to any statutory warranty.

Sears Canada Inc.,Toronto M5B 2B8

MOTOR 120V, 60 HZ, 4.2 AMPS

HORSEPOWER ........... 2/3 (Max. Developed)

SPEEDS:

MOTOR .............. 3450 RPM

BELT ................ 1760 FPM

DISC .... ............ 2800 RPM

SIZES:

BELT ................ 4" X 36"

DISC ................ 6"

TABLE .................. DISC /BELT

TABLE TILT .............. 0° TO 45°

BELT ARM TILT ........... 0° TO 90°

MITER GAUGE ........... YES

To avoid electrical hazards, fire hazards, or damage to the

tool, use proper circuit protection.

Your bench belt/disc sander is wired at the factory for

120V operation. Connect to a 120V, 15 amp branch circuit

and use a 15 amp time delay fuse or circuit breaker. To

avoid shock or fire, replace power cord immediately if it is

worn, cut or damaged in any way.

GENERAL SAFETY INSTRUCTIONS

BEFORE USING THE BELT /DISC SANDER

Safety is a combination of common sense, staying alert

and knowing how to use your belt /disc sander.

To avoid mistakes that could cause serious injury, do not

plug the belt /disc sander in until you have read and

understood the following:

.READ and become familiar with this entire instruction

manual. LEARN the tool's applications, limitations, and

possible hazards.

2. KEEP GUARDS IN PLACE and in working order.

10.

11.

REMOVE ADJUSTING KEYS AND WRENCHES.

Form the habit of checking to see that keys and

adjusting wrenches are removed from the tool before

turning ON.

KEEP WORK AREA CLEAN. Cluttered areas and

benches invite accidents.

DON'T USE IN A DANGEROUS ENVIRONMENT.

Don't use power tools in damp or wet locations, or

expose them to rain. Keep work area well lighted.

KEEP CHILDREN AWAY. All visitors Should be kept at

a safe distance from the work area.

MAKEWORKSHOP KID PROOF with padlocks, master

switches, or by removing starter keys.

DON'T FORCE THE TOOL. It will do the job better

and safer at the rate for which it was designed.

USETHE RIGHTTOOL. Don't force tool or the

attachment to do a job for which it was not designed.

USE PROPER EXTENSION CORD. Make sure your

extension cord is in good condition. When using an

extension cord, be sure to use one heavy enough to

carry the current your product will draw. An undersized

cord will cause a drop in line voltage resulting in loss

of power and overheating. The table on page 5 shows

the correct size to use depending on cord length and

nameplate ampere rating. If in doubt, use the next

heavier gauge. The smaller" the gauge number, the

heavier the cord.

12.

13.

14.

15.

16.

17.

18.

19.

20.

21.

WEAR PROPER APPAREL. DO NOT wear loose 22.

clothing, gloves, neckties, rings, bracelets, or other

jewelry which may get caught in moving parts.

Nonslip footwear is recommended. Wear protective

hair covering to contain long hair. 23.

WEARYOUR ALWAYS WEAR EYE

PROTECTION. Any belt /disc

sander can throw foreign

objects into the eyes which

could cause permanent eye

damage. ALWAYS wear Safety

Goggles (not glasses) that

comply with ANSI safety standard Z87.1. Everyday

eyeglasses have only impact-resistant lenses. They

ARE NOT safety glasses. Safety Goggles are available

at Sears. NOTE: Glasses or goggles not in compliance

with ANSI Z87.1 could seriously hurt you when they break.

WEAR A FACE MASK OR DUST MASK.

Sanding operation produces dust.

SECURE WORK. Use clamps or a vise to hold work

when practical. It's safer than using your hand and it

frees both hands to operate tool.

DISCONNECT TOOLS before servicing, and when

changing accessories, such as blades, bits, cutters,

and the like.

REDUCE THE RISK OF UNINTENTIONAL STARTING.

Make sure the switch is in OFF position before

plugging in.

USE RECOMMENDED ACCESSORIES. Consult the

owner's manual for the recommended accessories.

The use of improper accessories may cause risk of

injury to persons.

NEVER STAND ON TOOL. Serious injury could occur

if the tool is tipped or if the cutting tool is unintentionally

contacted.

CHECK FOR DAMAGED PARTS. Before further use of

the tool, a guard or other part that is damaged should

be carefully checked to determine that it will operate

properly and perform its intended function. Check for

alignment of moving parts, binding of moving parts,

breakage of parts, mounting, and any other conditions

that may affect its operation. A guard or other part that

is damaged should be properly repaired or replaced.

NEVER LEAVE TOOL RUNNING UNATTENDED.

TURN THE POWER OFF. Don't leave the tool until

it comes to a complete stop.

DON'T OVERREACH. Keep proper footing and

balance at ail times.

MAINTAIN TOOLS WITH CARE. Keep tools sharp

and clean for best and safest performance. Follow

instructions for lubricating and changing accessories.

DO NOT use power tools in the presence of flammable

liquids or gases.

SAVE THESE mNSTRUCTIONS

;;3

24. DONOToperatethetoolif youareundertheinfluence

of anydrugs,alcoholormedicationthatcouldaffect

yourabilitytousethetoolproperly.

25.

12.

Dust generated from certain materials can be 13.

hazardous to your health. Always operate the

belt/disc sander in a well-ventilated area and provide

for proper dust removal. Use dust collection systems 14.

whenever possible.

SPECiFiC SAFETY INSTRUCTIONS

FOR BELT /DiSC SANDER

For your own safety, do not try to use your belt /disc sander

or plug it in until it is completely assembled and installed

according to the instructions, and until you have read and

understood this instruction manual:

THIS SANDER IS DESIGNED TO SAND WOOD OR

WOOD-LIKE PRODUCTS ONLY. Sanding or grinding

other materials could result in fire, injury or damage to

workpiece.

USE sander on horizontal surfaces only. Operating

the sander when mounted on non-horizontal surfaces

might result in motor damage.

TO STOP it from tipping over or moving when in use,

the sander must be securely fastened to a bench top

or supporting surface.

PLACE the sander so neither the user nor bystanders

are forced to stand in line with the abrasive belt or disc.

MAKE SURE the sanding belt is installed in the correct

direction. See directional arrow on back of belt.

6. ALWAYS have the tracking adjusted properly so the

belt does not run off the pulleys.

7. DO NOT USE sanding belts or discs that are damaged,

torn, loose. Use only correct size sanding belt and disc.

Narrower belts uncover parts that could trap fingers.

8. MAKE SURE there are no nails or foreign objects in

the part of the workpiece to be sanded.

9. ALWAYS HOLD the workpiece firmly when sanding.

Keep hands away from sanding belt or disc. Sand

only one workpiece at a time.

10. ALWAYS HOLD the workpiece firmly on the table

when using the disc sander and when using the belt

sander.

11. ALWAYS SAND ON THE DOWNWARD SIDE of the

sanding disc when using the disc sander. Sanding on

the upward side of the disc could cause the workpiece

to fly out of position, resulting in injury.

SAVE THESE

15.

16.

17.

18.

19.

20.

21.

22.

23.

24.

ALWAYS maintain a minimum clearance of 1/16 inch

or less between the table or backstop and the sanding

belt or disc.-

DO NOT sand pieces of material that are too small to

be safely supported.

KEEP fingers away from where the belt goes into the

dust trap.

WHEN sanding a large workpiece, provide additional

support at table height.

DO NOT sand with the workpiece unsupported.

Support the workpiece with the backstop or table. The

only exception is curved work performed on the outer

sanding drum. Plan your work support.

NEVER USE ANOTHER PERSON as additional

support for a workpiece longer or wider than the table.

ALWAYS remove scrap pieces and other objects from

the table, backstop or belt before turning the sander

"ON."

NEVER perform layout, assembly or set-up work on the

table while the sander is operating.

NEVER use solvents to clean plastic parts. Solvents

could dissolve or other wise damage the material. Use

only a soft damp cloth to clean plastic parts.

SHOULD any part of your sander be missing, damaged,

or fai! in any way, or any electrical components fail to

perform properly, shut off switch and remove plug from

power supply outlet. Replace missing, damaged or

failed parts before resuming operation.

NEVER PULLTHE POWER CORD out of the receptacle.

Keep cords away from heat, oil and sharp edges.

HAVE AN ELECTRICIAN REPLACE OR REPAIR

damaged or worn cords immediately.

When using the belt to grind or sharpen metal or

plastic material:

o DO NOT wet grind or polish. Never use a steady

stream of water on the workpiece. Dip or quench

the workpiece in water to cool it.

• DO NOT OVERHEAT THE WORKPIECE. Move

metal across the abrasive and cool it when it

becomes hot.

o DO NOT grind or polish magnesium. It could

CATCH on fire.

mNSTRUCTMONS

GROUNDING INSTRUCTIONS

INTHE EVENT OF A MALFUNCTION OR BREAKDOWN,

grounding provides a path of least resistance for electric

current and reduces the risk of electric shock. This tool is

equipped with an electric cord that has an equipment

grounding conductor and a grounding plug. The plug

MUST be plugged into a matching receptacle that is

properly installed and grounded in accordance with ALL

local codes and ordinances.

DO NOT MODIFYTHE PLUG PROVIDED. If it will not fit the

receptacle, have the proper receptacle installed by a

qualified electrician.

IMPROPER CONNECTION of the equipment grounding

conductor can result in risk of electric shock. The

conductor with the green insulation (with or without yellow

stripes) is the equipment grounding conductor. If repair or

replacement of the electric cord or plug is necessary, DO

NOT connect the equipment grounding conductor to a live

terminal.

CHECK with a qualified electrician or service personnel if

you do not completely understand the grounding instructions,

or if you are not sure the tool is properly grounded.

USE ONLY 3-WIRE EXTENSION CORDS THAT HAVE

3-PRONG GROUNDING PLUGS AND 3-POLE

RECEPTACLES THAT ACCEPT THE TOOL'S PLUG.

REPAIR OR REPLACE DAMAGED OR WORN CORD

IMMEDIATELY.

GUIDELINES FOR EXTENSION CORDS

USE PROPER EXTENSION CORD. Make sure your

extension cord is in good condition. When using an

extension cord, be sure to use one heavy enough to carry

the current your product will draw. An undersized cord will

cause a drop in line voltage resulting in loss of power and

overheating. The table below shows the correct size to use

depending on cord length and nameplate ampere rating. If

in doubt, use the next heavier gauge. The smaller the gauge

number, the heavier the cord.

Be sure your extension cord is properly wired and in

good condition. Always replace a damaged extension cord

or have it repaired by a qualified person before using it.

Protect your extension cords from sharp objects, excessive

heat and damp or wet areas.

Use a separate electrical circuit for your tools. This circuit

must not be less than #12 wire and should be protected

with a 15 Amp time lag fuse. Before connecting the motor to

the )ower line, make sure the switch is in the OFF

position and the electric current is rated the same as the

current stamped on the motor nameplate. Running at a

lower"voltage will damage the motor.

SAVE THESE

This tool is intended for use on a circuit that has a

receptacle like the one illustrated in FIGURE A.

FIGURE A shows a 3-prong electrical plug and receptacle

that has a grounding conductor. If a properly grounded

receptacle is not available, an adapter (FIGURE B) can

be used to temporarily connect this plug to a 2-contact

ungrounded receptacle. The temporary adapter should be

used only until a properly grounded receptacle can be

installed by a qualified technician. The adapter (FIGURE B)

has a rigid lug extending from it that MUST be connected

to a permanent earth ground, such as a preperly

grounded receptacle box. The Canadian Electrical Code

prohibits the use of adapters.

CAUTION: In all cases, make certain the receptacle in

question is properly grounded. If you are not sure have a

certified electrician check the receptacle.

This belt /disc sander is for indoor use only. Do not

expose to rain or use in damp locations.

F_g. A

3-Prong Plug

Grounding Prong

Properly Grounded

3-Prong Receptacle

Fig. B Grounding Lug

_ Make Sure This

is Connected to a

Known Ground

"" 2-Prong

Receptacle

This tool must be grounded while in use to protect the

operator from electrical shock.

(when using 120 volts only)

Ampere Rating Totallength ofcordinfeet

morethan notmorethan 25' 50' 100' 150'

0 6 18 16 16 14

6 10 18 16 14 12

10 12 16 16 14 12

INSTRUCTIONS

AVAmLABLE ACCESSORqES

LIse only accessories recommended for this belt /disc

sander. Follow instructions that accompany accessories.

Use of improper accessories may cause hazards.

Visit your Sears Hardware Department or see the Sears

Power and Hand Tool Catalog for the following

accessories:

o Adhesive-backed Discs 6 inch:

Fine, Medium, or Coarse Grits

®Sanding Belts 4 x 36 inch:

Fine, Medium, Coarse, or Extra Coarse Grits

Abrasive Disc & Belt cleaner

Use only accessories designed for thi_ belt /disc sander to

avoid injury from thrown broken parts or workpieces.

Sears may recommend other accessories not listed in this

manual. See your nearest Sears store or Power and Hand

Tool Catalog for other accessories.

Do not use any accessory unless you have completely

read the instruction or owner's manual for that accessory.

If any part is missing or damaged, do not plug the belt /

disc sander in until the missing or damaged part is

replaced, and assembly is complete.

Carefully unpack the belt /disc sander and all its parts,

and compare against the illustration below.

To protect the belt /disc sander from moisture, a

protective coating has been applied to the machined

surfaces. Remove this coating with a soft cloth moistened

with WD-40.

To avoid fire or toxic reaction, never use gasoline, naphtha,

acetone, lacquer thinner or similar highly volatile solvents

to clean the belt /disc sander.

ITEM

DESCRIPTION QUANTITY

Belt /Disc Sander 1

Disc 1

Disc housing 1

Disc table 1

Miter gauge 1

Disc dust chute 1

Belt dust chute 1

Loose parts in bag:

Table support rod 1

Belt backstop 1

Hex key 1

Open-end wrench 1

Hex head bolt 1

Long pan head screw 40mm 1

Pan head short screws 2

Pan head thin screws 1/2" 2

Pan head medium screws 12mm 1

Large washer 1

Small washers 2

t4 I J K L M

N O P Q R

Sanding disc Disc housing Back stop Tension lever Sanding belt

,.'o , .o

........ _ ,.".: '; .:.: :: .,

Belt tracking knob

Table assembly Arm stop

Mounting hole

Disc dust chute On/Off switch

Hex key ;torage Miter gauge

Belt dust chute

Auxiliary table

support hole

Wrench

Power cord bracket\

Mounting hole

Bevel scale

Table support rod

Table lock knob

ASSEMBLY iNSTRUCTiONS

To avoid injury, always keep the plug disconnected from

the power source and the switch turned OFF until the

sander is completely assembled and adjusted properly.

For your own safety, never connect plug to power source

outlet until all assembly and adjustment steps are

completed, and you have read and understood the safety

and operating instructions.

TOOLS NEEDED

Slotted screwdriver

Phillips screwdriver

Adjustable wrench

Level

i,Ii1_1,1_1,1,1,1,1, , ,

IiItl,l,lJllfjlllBlll_'l'_

Combination square {_

MOUNTING BELT AND DISC SANDER TO

WORKBENCH (FIG; B)

Fig. B 2

1. belt /disc sander base 3__D

2. Bolt 4

3. Flat washer / I i

4. Rubber washer 1 _ i i

5. 1/2" Foam pad (optional) I i

6. Worksurface

7. Flat washer

8. Lockwasher

9. Hex nut (

10. Jam nut

PULLEY BELT ADJUSTMENT (FIG. C AND D)

1. Loosen the two hex screws (1) with wrench provided,

and move the sanding arm (2) to the vertical position.

Then tighten the two screws. (Fig. C)

Fig. C

2. Loosen lock nut (3), and belt tension set screw (4) by

turning it counterclockwise.

3. Raise up on the motor pulley (5) to replace or remove

the existing belt. Place new belt (6) on both pulleys (5)

and (7).

4. At the center span of the pulleys, apply light pressure

to the belt. At the same time tighten set screw (4) by

turning it clockwise, until the belt is just stretched.

Reapply light pressure to the belt and maintain belt

tension between 1/4" to 1/2" deflection.

IMPORTANT: Do not over tighten belt tension because

it does not require excessive tension to function

properly. Excessive tension will reduce motor and

belt life.

5. After correct tension is obtained tighten lock nut (3), and

position sanding arm (2) in the horizontal position by

loosening the two hex screws (1). Retighten hex screws.

Fig. D

7 i

1 m

PULLEY COVER INSTALLATION (FIG. E)

Attach pulley cover (1)using the 40mm long pan head

screw (2) and 12mm pan head screw (3), as shown.

Tighten screws securely.

Fig. E

i'.."

SANDING DISC PLATE INSTALLATION (FIG. F)

1. Thread 1/4" set screw (1), into the tapped hole on hub

of sanding disc plate (2). Turn clockwise to tighten.

2. Slide sanding disc plate (2), on drive shaft (3) making

sure flat on drive shaft is aligned with set screw (1) in

hub of disc plate (2). Slide disc plate onto shaft until

disc plate surface and edge of the pulley cover are

nearly flush.

3. Insert hex wrench, down through slot (4) in the top of

belt and pulley guard and tighten set screw (1) against

flat on drive shaft (3).

Fig. 2

SANDING DISC INSTALLATION (FIG. G)

Remove and clean any adhesive or material left on the

disc plate (2). Peel plastic backing from abrasive disc (1)

and carefully press disc firmly in position around the

sanding disc.

Fig. G

DISC COVER INSTALLATION (FIG. H)

1. Position disc cover (1) in place as shown.

2. Insert the two 1/2" pan head screws (2) and tighten.

Fig. H

TABLE ASSEMBLY INSTALLATION (FIG. I)

The worktable can be used with either the sanding disc or

the sanding belt. It should be used to support workpieces

in all sanding operations except inside curve applications.

1. Insert the table support rod (1) into the sander base

hole as shown. Table support rod should extend

5" outside of the sander base.

2. Align round side of the support rod (1) with hex bolt (2)

and tighten bolt.

3. Slide table assembly (3) onto rod (1).

4. Adjust table, align flat side of support rod with hex

bolt (4) on table bracket, and tighten.

Fig. !

)

Fig. J

DUST CHUTE INSTALLATION (FIG. K)

1. Position the dust chute (1) on the sanding arm as

shown.

2. Place washers on two pan screws (2). Insert the screws

through the slots on the side of the dust chute into the

threaded holes on the sanding arm (3).

3. Tighten screws securely.

Fig. K

,".' ".i:."'.'."'.'."." ".';

.v..: ."

, r • . • o. ' • .t...... • '. "..

To avoid trapping the workpiece or fingers between the

table and sanding disc, the table edge should be

positioned a maximum of 1/16" from sanding disc plate,

as shown in FIG. I.

BACK STOP INSTALLATION (FIG. J)

The backstop prevents the workpiece from being pulled or

dragged beyond the sanding arm. It should always be

used to help control the workpiece°

1. Position back stop (1) on sanding arm (2).

2. Place washer (3) on hex bolt (4). Insert bolt through

slotted hole into the threaded hole in the side of the

sanding arm.

3. Tighten hex bolt securely.

ADJUSTMENTS

To avoid injury, always keep the plug disconnected from

the power source and the switch turned OFF until the

sander is completely assembled and adjusted properly.

ADJUSTING TABLE SQUARE WITH SANDING DISC

(FIG. L)

1. Using a combination square (1), place one side of the

square on the table (2) with the other side against the

sanding disc (3), and check to see if the table is 90°

to the disc.

2. If the table surface is not 90° to the disc, loosen table

lock knob (4), adjust table square with disc and tighten

lock knob (4).

3. Adjust pointer (5) to the 0° mark on the angle scale,

using a screwdriver.

Fig. L

Fig. M

To avoid trapping the workpiece or fingers between the

table and sanding disc, the table edge should be

positioned a maximum of 1/16" from sanding disc plate.

ADJUSTING TABLE TO BE HORIZONTAL (FIG. M)

1. Place level on table parallel to disc.

2. If not level, hold table, loosen bolt (1).

3. Adjust to horizontal and retighten bolt.

ADJUSTING TABLE ANGLE (FIG. N)

The table can be tilted from 0° to 45° by loosening the

table lock knob (1), tilting the table to the desired angle,

and tightening table lock knob (1).

After tilting the table, the table assembly must be

repositioned on the support rod to a maximum of 1/16"

distance between the sanding disc and the edge of the

table, to avoid trapping the work or fingers between the

disc and table.

Fig. N -q

SAFETY POWER SWITCH (FIG. O)

To avoid injury, always keep the plug disconnected from

the power source and switch turned OFF until the sander

is completely assembled and adjusted properly.

The ON-OFF toggle switch (1) is located on side of the

sanding machine. Pull toggle switch up to turn the tool ON

and down to turn it OFF. The toggle switch has a switch

key (2) for locking the switch in the OFF position.

IMPORTANT: When removing switch key from toggle

switch, always push the switch down to the OFF position

and pull yellow key out.

Fig. O

WRENCH STORAGE

1/8 INCH HEX WRENCH (FIG. P)

Insert the long end of the hex wrench (1) through the

holes (2) located on the back surface of the pulley cover,

as shown.

Fig. P

• -

WRENCH (FIG. Q)

Insert the handle of the wrench into the metal clip located

on the sander as shown.

Fig. Q

MITER GAUGE (FIG. R)

A miter gauge (1) is supplied with your sander and is

used with the disc table. The miter gauge body can be

tilted 0° to 45° right or left for angle or miter sanding.

Install the slide rod into the table slot (2) as shown.

Loosen lock knob (3), rotate miter gauge body to the

desired angle and tighten lock knob (3).

Fig. R

1 3

REPLACING SANDING BELT (FIG. S, T, U)

To avoid injury, turn switch OFF and disconnect the plug

from the power source before removing and installing

sanding belts.

1. Remove two screws (1), and dust chute (2).

Fig. S

2. Remove hex bolt (3), and backstop (4).

FIg.T 3 4

Fig= U

CHANGING POSITION OF SANDING ARM

SANDING ARM IN VERTICAL POSITION (FIG. V)

1. The sanding arm can be used in either the horizontal

or vertical position. To move the sanding arm, loosen

the two bolts (1), that attach arm (2). Move the arm to

the desired position. Tighten the two bolts.

2. Insert the table support rod (3) into auxiliary hole as

shown. Table support rod should extend 5" outside

base.

3. Align round on support rod with hex bolt on sander

and tighten hex bolt (4) on sander.

4. Slide table assembly (5) onto rod (3), as shown.

5. Align flat on support rod with hex bolt (6) on table

bracket and tighten bolt.

To avoid trapping the workpiece or fingers between the

table and sanding belt, the table edge should be

positioned a maximum of 1/16" from sanding belt.

Fig. V

3. Slide tension lever (5), to the right to release tension

on the sanding belt (6) (Fig. U).

4. Remove sanding belt from both sanding drums (7).

5. Slide new sanding belt over sanding drums, making

sure the belt arrow located on the inside of the belt will

run in the direction of the arrow on the sander. Slide

tension lever (5), to the left to apply belt tension.

6. Quickly push the belt forward by hand (in the direction

of the belt rotation arrow, visible from the top between

the sanding disc and the belt arm) and check to see if

the sanding belt tends to run to one side or the other

on the two pulleys. 5

7. If the sanding belt runs toward the disc, slightly turn

the tracking knob (8) counterclockwise.

8. If the sanding belt runs away from the disc, slightly

turn the tracking knob (8) clockwise.

9. Plug sander into power source and turn the switch

ON and OFF quickly, and check to see if the

sanding belt runs to either side. Readjust and fine tune

tracking knob if necessary. &

10. When proper tracking is .achieved, replace backstop

and dust guard.

4 3

ADJUSTING SANDING ARM

LEVELING THE ARM (FIG. W)

A positive stop is provided to position the sanding arm

level with the workbench when the arm is in the

horizontal position.

1. Place the sanding arm (1) in the horizontal position.

2. Place a level (2) on the sanding belt and check to see

if the arm is level-.

3. If an adjustment is necessary, loosen lock nut (3), and

turn sanding arm stop (4) clockwise to raise, or

counterclockwise to lower, until the sanding arm is

level. Then tighten lock nut (3).

Fig. W

2 1

The belt and disc sander is designed to perform rough

sanding operations on surface, edge grain and end grain

sanding. The sander will also perform freehand forming

and contouring operations. The following suggestions are

recommended for best results and safest use.

1. Always apply light pressure allowing the abrasive to

remove the material slowly.

2. The workpiece should be moved, continuously, to

avoid burning.

3. Avoid sanding small pieces of wood which will

position the fingers close to the abrasive belt or disc.

USING BACKSTOP WITH SANDING ARM (FIG. X)

When using the sanding arm in the horizontal position, to

I..-rform surface or edge sanding, the backstop (1) must

always be used. Always hold the work piece (2) firmly

keeping your fingers away from the sanding belt (3).

Always keep the end of the workpiece against the

backstop and move the work evenly across the sanding

belt. Apply only enough pressure to allow the sanding

belt to remove material. Use extra caution when sanding

very thin pieces.

The edge of the backstop must be positioned a maximum

of 1/16" from the sanding belt to avoid trapping the work

or fingers between the backstop and sanding belt.

Fig. X

SANDING INSIDE CURVES (FIG. Y)

Freehand sanding of inside curves can be sanded on the

idler drum (1). Never attempt to sand the ends of a

workpiece on the drive drum.

To avoid injury, do not apply the end of the workpiece to

the idler drum. This could cause the workpiece to fly up

or cause kickback.

Fig. Y

SANDING OUTSIDE CURVES (FIG. Z)

Freehand sanding of outside curves should be done on

the sanding disc (1). Keep fingers a minimum of 1 inch

irom the disc.

Always sand on the left (downward) side of the sanding

disc, as shown. Sanding on the right (upward) side of the

sanding disc could cause the workpiece to fly up which

could be hazardous.

The edge of the table must be positioned a maximum of

1/16" from the sanding disc to avoid trapping the

workpiece or fingers between the table and sanding disc.

Fig. Z

END GRAIN SANDING WITH THE BELT (FIG. AA)

When sanding the ends of the wide workpieces it is

more convenient to use the sanding belt (1) with the

sanding arm in the vertical position and the table

assembly (2) moved to the sanding belt, as shown. See

section titled CHANGING POSITION OF SANDING ARM.

For more accurate work use the miter gauge and move

the workpiece evenly across.the sanding belt.

IMPORTANT: Use a combination square to position

miter gauge perpendicular to face of the disc. If it is not

square loosen miter gauge knob and move miter gauge,

slightly, until it is square.

For your own safety, turn switch OFF and remove plug

from the power source outlet during assembly er while

making adjustments to belt /disc sander.

The edge of the table must be positioned a maximum of

1/16" from the sanding belt to avoid trapping the

workpiece or fingers between the table and sanding belt.

Fig. AA

15 Z

For your own safety, turn switch OFF and remove plug

from the power source outlet before maintaining, or

lubricating your belt /disc sander.

1. Frequently blow out or vacuum out any dust that may

accumulate inside the motor.

2. Remove impacted sawdust from the disc and belt

abrasive or replace abrasive.

Certain cleaning agents and solvents damage plastic

parts. Some of these are: gasoline, carbon tetrachloride,

chlorinated cleaning solvents, ammonia and household

detergents that contain ammonia. Avoiding use of these

and other types of cleaning agents, minimizes the

probability of damage.

To avoid shock or fire hazard, if the power cord is worn or

cut, or damaged in any way, have it replaced immediately.

All repairs, electrical or mechanical, should be attempted

only by trained repairmen. Contact the nearest Sears

Service Center.

LUBRICATION

All of the BALL BEARINGS are packed with grease at

the factory. They require no further lubrication.

TROUBLESHOOTING GUIDE

Turn switch OFF and always remove plug from power source before making any adjustments or repairs.

All repairs, electrical or mechanical, should be attempted only by qualified service technicians. Contact the nearest

Sears Service Center.

PROBLEM

Motor will not run.

Machine slows down

while sanding.

Sanding belt runs off pulleys.

PROBABLE CAUSE

1. Defective or broken ON/OFF switch.

2. Defective or damaged switch cord.

3. Defective or damaged switch relay.

4. Burned out motor.

5. Blown house fuse.

Operator applying too much

pressure to workpiece.

Dirt on wheels.

Worn or stretched belt.

Not tracking properly.

1. Sanding disc or belt glazed with sap.

2. Excessive pressure being applied

to workpiece.

Wood burns while sanding.

REMEDY

1-3. Replace all broken or defective

parts before using sander.

4. Consult your local Sears Service

Center. Any attempt to repair this

motor may create a hazard unless

repair is done by a qualified

technician.

5. Replace house fuse. Turn OFF

other appliances and power tools

on the same circuit.

1. Use less pressure in applying

workpiece to sanding surface.

2. Clean wheels.

3. Replace pulley belt.

1. Adjust tracking. See section

"REPLACING SANDING BELT".

1. Replace belt or disc.

2. Reduce pressure applied to

workpiece.

Motor overheats 1. Motor overload. 1. r_educe motor load. Allow

to cool off before restarting.

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4" × 36" BELT/DISC SANDER MODEL NO. 137.283290

4" x 36" BELT/DISC SANDER MODEL NO. 137.283290

When servicing use only CRAFTSMAN replacement parts. Use of any other parts may create a HAZARD or cause

product damage.

Any attempt to repair or replace electrical parts on this belt /disc sander may create a HAZARD unless repair is

done by a qualified service technician. Repair service is available at your nearest Sears Service Center.

Always order by PART NUMBER, not by key number

Key No. Part No. Description Size Qty. Key No. Part No. Description Size Qty.

1 2668BBDA37 Pan hal. screw M6x1.0-8 4 61 2701QBD514 Hex. nut 1/2x13 1

2 15900204 Floor plate 1 62 N/A

3 2601BZDA47 Hex. hd. bolt M6xl.0 1 63 16001701 Spring 1

4 2701FZD106 Hex nut M6xl.0 1 64 15902001 Guide drum 1

5 15904102 Motor pulley 1 65 2705QZD506 Nut chuck 1/4x20 1

6 8343725904 Motor 1 66 2601QBDK37 Hex. hd. bolt 1/4x20 1

7 15900702 Motor rod 1 67 2502NBC406 Spring washer 1

8 2570BBN207 E-ring 1 68 16003001 Gripe 1

9 15900904 Base 1 69 16002901 Belt tension lever 1

10 2898DB7G06 Rocker switch 1 70 15902501 Handle 1

11 2660PBCK11 Pan hd. tapping screw M4x18-12 2 71 15904001 Plastic washer 1

12 15901204 Switch cover 1 72 2501NBDN16 Flat washer 1

13 2660PBCK10 Pan hd. tapping screw M4x18-8 2 73 16002301 Spring 1

14 2504MZC004 External tooth lock washer 2 74 15901701 Rubber pad 2

15 15903101 Switch box t 75 2570BBN112 C-ring 2

16 2801UBHA07 Strain relief 2 76 2506MBN612 Wave washer 1

17 15901704 Label 1 77 15901801 Bush 2

18 2668BBDA37 Pan hd. screw M6x1.0-8 4 78 15901902 Drum-idler 1

19 15901903 Plate cover 1 79 15902101 Shaft-idler 1

20 2601QBDK57 Hex. hd. bolt 5/16x18-1 1 80 15900801 Sanding belt 1

21 2603BBLA38 Hex. sac. set screw M6x1.0-10 1 81 15905501 Lock knob 1

22 15902202 Plate cover 1 82 2601QBDK53 Hex. hd. bolt 5/16x18-7/16 1

23 2668BBDA37 Pan hd. screw M6x1.0-8 4 83 2501NBDN24 Flat washer 1

24 2807BY06H2 Power cable 1 84 16005201 Tilt bracket 1

25 2606BBLA05 Hex. soc. set screw M4x0.7-4 2 85 2668QBDK24 Pan hd. screw 10#x24-1/4 1

26 2701FBD106 Hex. nut M6xl.0 1 86 16004901 Needle pointer 1

27 2688BBDA41 Pan hd. screw M6x1.0-20 1 87 2601QBDK55 Hex. hal. bolt, 5/16x18-3/4 1

28 2668QBDK17 Pan hd. screw 8#x32-1/2 2 88 16004801 Table support 1

29 17711501 Disc cover 1 89 15906101 Hex. soc. hd. cap bolt 10#x32-0.59 2

30 15904601 Disc sanding 1 90 2504MBC005 External tooth lock washer 2

31 15904501 Plate sanding 1 91 2501NBDN03 Flat washer 2

32 2603RBLK32 Hex. soc. set screw 1/4x20-1/4 1 92 15906301 Pin pivot support 2

33 2668BBDA45 Pan hd. screw M6x1.0-40 1 93 16004301 Pin pivot 2

34 16005903 Pulley cover 1 94 15906001 Table sander 1

35 2138NBL701 Wrench hex. 1 95 15905301 Support rod 1

36 2572ARY150 Synch belt 1 96 14911703 Sheet bar 1

37 15903701 Spindle pulley t 97 14606001 Angle pointer 1

38 2601QBDK59 Hex. hd. bolt 5/16x18-1 1/2 2 98 2641BZDA22 Round washer hd. screw M5xO.8-6 1

39 2501NBDN22 Flat washer 5/16x25/32-1/8 2 99 14607802 Miter gauge 1

40 15904002 Bearing seat bracket t 100 2501NZDN10 Flat washer 1

41 2502ABC416 Spring washer 2 I01 14608301 Knob 1

42 2602BBLA55 Hex. soc. hd. cap bolt M8x1.25-20 2 102 14608001 Pin 1

43 1590 7803 Caution label 1 103 15910601 Wrench 1

44 2668QBDK27 Pan hd. screw 10#x24-3/4 3 104 2620BBDC19 Pan hd. screw & washer M6x1.0-12 2

45 17305801 Bearing seat 1 105 15910801 Clamp 1

46 2001ZZ6001 Ball bearing 2 106 15911004 Warning label 1

47 2570BBN112 C-ring 2 107 2668BBDA39 Pan hd. screw M6x1.0-12 1

48 15900102 Drive-drum 1 108 2805U5HN16 Terminal 1

49 2803RBLK32 Hex. soc. set screw 1/4x20-1/4 2 109 2801DBHA01 Strain relief 1

50 16001203 Table belt 1 110 2606BBLA05 Hex. soc. set screw M4xO.7-4 2

51 15900701 Drive shaft 1 111 28605BH07t Switch key 1

52 16001401 Cap-bearing 1 112 16314301 Power cord clamp 2

53 2668QBDK22 Pan hd. screw 10#x24-1/4 3 113 2641BBDA40 Round washer hd. screw 2

54 16008101 Dust collector 1 114 2501MZDN06 Flat washer 2

55 2501NBDN03 Flat washer 2 137283290001 Owner's manual 1

56 2668QBDK22 Pan hd. screw 10#x24-1/4 2

57 2601QBDK34 Hex. hd. bolt 1/4x20-1/2 1

58 2501NBDN16 Flat washer 1/4x3/4-1/16 1

59 16003101 Stop back 1 N/A Not applicable

60 15901101 Screw stop 1 Not shown

Craftsman 137283290 User Manual 4 X 36 BELT/DISC SANDER Manuals And Guides L0805066

CRAFTSMAN Sander Manual L0805066 CRAFTSMAN Sander Owner's Manual, CRAFTSMAN Sander installation guides

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