612547-329

SEARS

OWNERS

MANUAL

i:i_i q

MODEL NO.

315.117130

CAUTION:

Read Rules for

Safe Operation and Instructions

Carefully

CRAFTSMAN"

3 INCH

BELT SANDER

DOUBLE INSULATED

SAVE THIS

MANUAL FOR

FUTURE REFERENCE

Introduction

Operation

Maintenance

Repair Parts

612547.329

10-86

Designed exclusively for and sold only by

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

PRINTED IN U,$,A,

FULL ONE YEAR WARRANTY ON CRAFTSMAN BELT SANDER

If this Craftsman Belt Sander falls to give complete satisfactiori within one year from the date of pur- chase RETURN IT TO THE NEAREST SEARS STORE THROUGHOUT THE UNITED STATES and Sears

will repair it, free of charge,

If this belt sander is used for commercial or rental purposes this warranty applies for only 90 days from the date of purchase.

Tills warranty gives you specific legal rights, and you may also have other rights whic_ vary from state to state.

SEARS, ROEBUCK AND CO.

DEPT. 698/731A

SEARS TOWER

CHICAGO, IL 60684

INTRODUCTION

GENERAL

Your Craftsman 3-Inch Belt Sander is suitable for

coarse, medium and fine sanding of wood, metals,

plastics and other materials. It is ideal when used for smoothing rough boards, chamfering, rounding

edges and many other general sanding applications.

Its balanced design makes it easy to use.

IMPORTANT -- Servicing of a tool with double in-

sulation requires extreme care and knowledge of the system and should be performed only by a qualified service technician.

For service, return the tool to

your nearest Sears store for repair which will be

done with original factory replacement parts.

DOUBLE INSULATION

Double insulation is a concept in safety, in electric

power tools, which eliminates the need for the usual three wire grounded power cord and grounded supply system. Wherever there is electric current in the

tool there are two complete sets of insulation to pro-

tect the user. All exposed metal parts are isolated from the internal metal motor components with pro- tecting insulation.

RULES FOR SAFE OPERATION

WARNING -- DO NOT ATTEMPT TO OPERATE THIS TOOL UNTIL YOU HAVE READ THOROUGHLY AND

UNDERSTAND COMPLETELY ALL INSTRUCTIONS, RULES, ETC. CONTAINED IN THIS MANUAL. FAILURE

TO COMPLY CAN RESULT IN ACCIDENTS INVOLVING FIRE, ELECTRIC SHOCK, OR SERIOUS PERSONAL

INJURY. SAVE OWNERS MANUAL AND REVIEW FREQUENTLY FOR CONTINUING SAFE OPERATION, AND

INSTRUCTING POSSIBLE THIRD.PARTY

USERS.

READ ALL INSTRUCTIONS

1. KNOW YOUR POWER TOOL -Read owner's manual carefully.

Learn its applications and limitations as well as the specific potential hazards related to this tool.

2.

GUARD

WITH

AGAINST ELECTRICAL SHOCK BY PREVENTING BODY CONTACT

GROUNDED erator enclosures.

SURFACES.

For example: Pipes, radiators, ranges, refrig-

3.

KEEP GUARDS IN PLACE and in working

4.

KEEP WORK AREA CLEAN.

Cluttered order.

areas and benches invite accidents.

5. AVOID DANGEROUS ENVIRONMENT.

Don't use power tool in damp or wet locations or expose to rain.

Keep work area well lit.

6.

KEEP CHILDREN AWAY.

be kept a safe distance extension cord.

All visitors should wear safety glasses and from work area.

Do not let visitors contact tool or

7. STORE IDLE TOOLS.

When not in use, tools should be stored in a dry, high or locked-up place -out of the reach of children.

8. DON'T FORCE TOOL.

It will do the job better and safer at the rate for which it was designed.

9.

USE RIGHT TOOL.

Don't force small tool or attachment to do the job of a heavy duty tool.

Don't use tool for purpose not intended for example - Don't use a circular saw for cutting tree limbs or logs.

Page 2

!•

RULES FOR SAFE OPERATION (Continued)

10. WEAR PROPER APPAREL.

No loose clothing or jewelry to get caught in moving

parts. Rubber gloves and footwear are recommended when working outdoors.

Also, wear protective hair covering to contain long hair.

11. USE SAFETY GLASSES with all tools.

Also face or dust mask if cutting operation is dusty.

12. DON'T ABUSE CORD.

Never carry tool by cord or yank it to disconnect from receptacle.

Keep cord from heat, oil, and sharp edges.

13. SECURE WORK.

Use clamps or a vise to hold work. It's safer than using your

hand and it frees both hands to operate tool.

14. DON'T OVERREACH.

Keep proper footing and balance at all times. Do not use on a ladder or unstable support.

15. MAINTAIN TOOLS WITH CARE. Keep tools sharp at all times, and clean for best and safest performance.

Follow instructions for lubricating and changing accessories.

16. DISCONNECT TOOLS. When not in use, before servicing, or when changing attachments, blades, bits, cutters, etc., all tools should be disconnected.

17. REMOVE ADJUSTING KEYS AND WRENCHES.

Form habit of checking to see

that keys and adjusting wrenches are removed from tool before turning it on.

18. AVOID ACCIDENTAL STARTING.

Don't carry plugged-in tools with finger on switch. Be sure switch is off when plugging in.

19. OUTDOOR USE EXTENSION CORDS.

When tool is used outdoors, use only extension cords suitable for use outdoors. Outdoor approved cords are marked

with the suffix W-A, for example -SJTW.A or SJOW-A.

20. NEVER USE THIS OR ANY POWER SANDER FOR WET SANDING.

Failure to comply can result in electrical shock causing serious injury or worse.

21. KEEP HANDS AND FINGERS AWAY FROM SANDING AREA AND MOVING

• SANDING BELT.

22. NEVER USE IN AN EXPLOSIVE ATMOSPHERE.

Normal sparking of the motor

could ignite fumes.

23. INSPECT TOOL CORDS PERIODICALLY and if damaged, have repaired at your nearest Sears Repair Center. Stay constantly aware of cord location.

24. INSPECT EXTENSION CORDS PERIODICALLY and replace if damaged.

25. KEEP HANDLES DRY, CLEAN, AND FREE FROM OIL AND GREASE.

Always use a clean cloth when cleaning.

Never use brake fluids, gasoline, petroleumbased products, or any strong solvents to clean your tool.

26. STAY ALERT.

Watch what you are doing and use common sense.

Do not operate tool when you are tired.

Do not rush.

27. CHECK 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 by an authorized service center unless indicated elsewhere in this instruction manual.

28. DO NOT USE TOOL IF SWITCH DOES NOT TURN IT ON AND OFF. Have defect-

ive switches replaced by authorized service center.

29. Inspect for and remove all nails from lumber before sanding.

30. DRUGS, ALCOHOL, MEDICATION.

Do not operate tool while under the influence of drugs, alcohol, or any medication.

31. SAVE THESE INSTRUCTIONS.

Refer to them frequently and use them to instruct third party users.

If you loan someone your Sander, loan them these instructions also.

Page 3

OPERATION

J J

REAR i Jl.....

i

TRACKING

SCREW

Make sure power supply is 110-120 volts, 60 HZ, AC only.

Before attempting to u_e your Sander, familiarize yourself with al{ operating features (See Figure 1) and safety requirements,

HANDLE

SWITCH

The switch of your sander is equipped on" feature which is convenient when with a "locksanding for extended periods of time, To lock-on, simply depress the trigger of the switch, push in the lock button t.he_si__e

then whi!_eh_o!_ding

the look button pushed in, release the trigger See

Pigure 2 To release ihe lock, depress the trlgger and release it I1 you have the "Lock-On" feature engaged during use and your Sander becomes disconnected from power suppty, disengage immediate!, the "Lock-On" feature i , iHi

FRONT IDLER

PULLEY i i i i,l,i

SANDING

BELT iim,iH

Fig 1

-,

LOCK "ON"

BUTTON i i ,iii,H .......

CORRECT i II

Fig. 2

III

PREPARING FOR OPERATION

For e_ge of operation and maintaining proper con, trol, your Sander has a front handte and a rear handle These handles allow two-hand operation aid in maintaining control, keeping sanding which area

_evet with workpiece, and keeping sandincj belt.

When operating your hands

Sander clear always ot hold the front handle with your left hand and the rear handle with your right hand as shown in Fig. 2.

iSee Fig 3

KEEP HANDS AND FINGERS

AWAY FROM THESE AREAS AT ALL TIMES

FtO. 3

Aiways operate your Sander as shown in Fig 2.

Page 4

OPERATION

Selecting the correct size and type sanding belt Is an important step tn achieving a high quality sanded finish. Standard 3 inch x 21 inch sanding belts made

of alumi'num oxtde, silicone carbide, and othel' synthettc abrasives are best for power sanding.

In general, coarse grit will remove the most material and fine grit wil! produce the gm0oth_t flni_h in Wl sanding operations.

The condition of the surface to be sanded wi!l determine which grit belt will do the job, If the surface is rough, start with a coarse grit belt sanding until surface is uniform Medium grit belt may then be used to remove scratches left by the coarser belt and fine grit belt used for finishing of the surface.

Always continue sanding with each grit belt until the surfao_ i_ uniform

LIFT TENSION RELEASE LEVER TO REMOVE

SANDING BELT

Fig. 4

INSTALLING AND ADJUSTING SANDING BELT

DISCONNECT SANDER FROM POWER SUPPLY

WHILE ASSEM_BL_!NG pA_RT_SOR MAKING AD-

JUSTMENTS.

To release the sanding belt, lift tenston release lever straight up as shown in figure 4. When sufficient force is exerted, the spring will be compressed attowtng the pulley to lock in a rear position This frees the sanding belt so It can be removed. Install new belt making sure arrow inside of belt ls pointing in the direcUoh b{ rOt_tion, whieh is eloekwi_e when looking into open side of sander, See Fig 5, Reughly

align the belt to its correct poWtiort, then releage ten- sion on pulley. Retease tension by lowering tension release lever as shown in Figure 6 The pulley will snap back into operating position

, , _,.....-._

...._

Fig 5

SANDING BELT

....

LOWER TENSION RELEASE LEVER TO SECURE

sANDiN(_ BELT

Fig 6 i

Page 5 i H

4 ii!i:

OPERATION

ALWAYS WEAR SAFETY GLASSES OR

EYESHIELDS WHEN OPERATING YOUR SANDER.

To adjust sanding belt, connect Sander to power supply.

Place Sander in upside down position as shown in Figure 7. NOTE: This position is for adjustments only. The Sander is not in an operating position.

Pull switch trigger and release immediately, Observe tracking of sanding belt. If the sanding belt runs inward, turn the tracking screw clockwise.

If the sanding belt runs outward, turn the tracking screw counterclockwise.

This should be done until you are sure belt will not run off sander, or come in contact with internal parts.

After installing a new

sanding belt, it may become necessary to change the adjustment several times until the belt becomes pliable.

WARNING: IF SANDING BELT BEGINS TO WEAR

EXCESSIVELY ON THE INNER EDGE, RE-ADJUST

TRACKING SCREW. IT IS ADJUSTED TOO FAR IN.

WARD AND THE SANDING BELT IS RUBBING

AGAINST INTERNAL PARTS. When you are sure the belt will not rub against internal parts, start your

Sander and fine adjust the tracking screw until the belt stabilizes.

See Figure 8,

TRACKING

SCREW

When correctly adjusted, the outer edge of the belt will be even with the outer edge of the base of your

Sander. Belt life will be greatly increased if a few seconds are spent adjusting the belt tracking.

WARNING: KEEP HANDS AND FINGERS AWAY

FROM MOVING SANDING BELT. ANY PART OF

YOUR BODY COMING IN CONTACT WITH MOVING

BELT COULD RESULT IN SERIOUS INJURY.

DO

NOT WEAR LOOSE CLOTHING OR JEWELRY

WHEN OPERATING YOUR SANDER. THEY COULD

GET CAUGHT IN MOVING PARTS AND FOREIGN

OBJECTS COULD GET THROWN AWAY FROM

SANDER CAUSING INJURY.

TO OPERATE

Clamp or otherwise secure the work to prevent it from moving under your Sander.

WARNING:

UNSECURED WORK COULD BE THROWN BACK

TOWARD OPERATOR CAUSING INJURY.

Before placing Sander on work surface, squeeze the trigger switch and let the motor reach its maximum speed, then lower your Sander to the work surface with a slight forward motion.

Using the rear handle to control your Sander and the front handle only to guide it, move it slowly over the work, See Fig. 9. Allowing your Sander to remain in one place will result in an uneven surface, WARNING: KEEP A FIRM GRIP ON

SANDER WITH BOTH HANDS AT ALL TIMES.

FAILURE TO DO SO COULD RESULT IN LOSS OF

CONTROL LEADING TO POSSIBLE SERIOUS IN-

JURY. Your Sander was designed to provide the proper weight on the sanding belt. Extra pressure will result in uneven work, clogged belts, and possible motor burnout. NOTE: The front roller of your sander was not designed for contour sanding.

Sanding on the front roller could cause irregularity in sanding belt tracking.

Use a coarse belt when heavy cutting is desired, not heavy pressure, The importance of this cannot be over-emphasized.

The weight has been built into the tool to give the most efficient pressure at the proper location.

Page 6

SANDING

BELT

Fig. 8

Fig. 9

MAINTENANCE

WHEN SERVICING USE ONLY IDENTICAL REPLACEMENT PARTS.

TIMING BELT REPLACEMENT

DISCONNECT SANDER FROM POWER SUPPLY

BEFORE SERVICING

WHEN REPLACING TIMING BELT, USE REPLACE-

MENT BELT NUMBER 989368-000 ONLY. See Key

Number 5 on Parts List, Page 11.

TIMING BELT

1.

Remove sanding belt from sander. See installing and adjusting sanding belt, Page 5.

NOTE:

REMOVING THE SANDING BELT WILL

SIMPLIFY THE PROCESS OF INSTALLING

YOUR NEW TIMING BELT.

2.

Remove the two belt cover screws. Then remove the belt cover. See Key Numbers 1 and 2 on exploded view and/or parts list, pages 10 and 11.

3.

Force old belt from small pulley with a screwdriver and remove it from large pulley. If it is worn out, simply cut the old belt and remove it.

4.

Install new belt over large pulley first. See Figure

10.

5.

Holding the belt as shown in Figure 11, press the belt onto the small pulley. NOTE: TO SIMPLIFY

THE PROCESS, TURN THE LARGE PULLEY AS

YOU PRESS THE BELT ONTO THE SMALL

PULLEY.

6.

Reassemble belt cover and screws.

BELT COVER

.=_

BELT COVER

SCREWS

PULLEY

Fig. 10

APPLY PRESSURE

HERE AND TURN LARGE PULLEY

Fig. 11

SWITCH REPLACEMENT

DISCONNECT THE SANDER FROM POWER SUPP.

LY WHILE REPLACING PARTS OR MAKING AD-

JUSTMENTS.

6.

7.

.

.

,

,

.

Remove the handle cover and screws. NOTE THE

LOCATIONS OF ALL WIRING IN THE HANDLE

AND HOW EACH CONNECTION IS MADE TO

THE SWITCH. Connections and wiring position must be identical when installing the new

switch. See Figure 12.

Lift the switch away from the handle, then release the leads to the switch by inserting a

1/32" diameter pin or nail into each switch lead receptacle.

See Figure 13.

Make the lead connections to the new switch by pushing each lead as far as possible into the switch lead receptacles.

Pull on leads to check lead connections with lead receptacles.

Arrange the wiring in the handle so that it will not be pinched when the handle cover and screws are replaced, then position theswitch in place.

See Figure 12.

Place the cord and bend relief in their correct locations.

See Figure 12.

Replace handle cover and screws.

Tighten all screws securely.

Page 7

HANDLE COVER

1/32" DIAMETER

NAIL OR PIN

Fig.

12

Fig.

13

CORD REPLACEMENT

DISCONNECT THE SANDER FROM POWER SUPP.

LY WHILE REPLACING PARTS OR MAKING AD.

JUSTMENTS.

1.

Remove handle cover and screws as described on Page 7. Note the locations of all wiring in the handle and how each connection is made to the cord. Connections and wiring position must be identical when installing the new cord.

See

Figure 14.

2.

Remove the switch from the handle and disconnect the cord leads from the switch.

See Figure

15.

3.

Remove the bend relief from old cord and place it on the new one.

4.

Push each lead of the new cord as far as possible into the proper switch lead receptacles.

Pull on leads to check lead connections with lead receptacles.

5.

Arrange the wiring in the handle so that it will not be pinched when handle cover and screws are replaced.

Position the switch in place.

See

Figure 14.

6.

Place the bend relief and cord in their correct locations, then replace handle cover and screws.

7.

Tighten all screws securely.

BEND

HANDLE COVER

1/32" DIAMETER

NAIL OR PIN

Fig. 14 ii.

i, +.

Fig. 15

GENERAL

Only the parts shown on parts list, page eleven, are intended to be repaired or replaced by the customer.

All other parts represent an important part of the double insulation system and should be serviced only by a qualified service technician.

Avoid using solvents when cleaning plastic parts.

Most plastics are susceptible to various types of commercial solvents and may be damaged by their use. Use clean cloths to remove dirt, carbon dust, etc. WARNING: DO NOT AT ANY TIME LET BRAKE

FLUIDS, GASOLINE, PETROLEUM-BASED PRO.

DUCTS, PENETRATING OILS, ETC. COME IN CON.

TACT WITH PLASTIC PARTS.

THEY CONTAIN

CHEMICALS THAT CAN DAMAGE, WEAKEN,

AND/OR DESTROY PLASTIC.

When electric tools are used on fiberglass boats, sports cars, etc., it has been found that they are subject to accelerated wear and possible premature failure, as the fiberglass chips and grindings are highly abrasive to bearings, brushes, commutator, etc. Consequently it is not recommended that this tool be used for extended work on any fiberglass material. During any use on fiberglass it is extremely important that the tool is cleaned frequently by blowing with an air jet.

ALWAYS WEAR SAFETY

GLASSES OR EYE SHIELDS BEFORE BEGINNING

POWER TOOL OPERATION OR BLOWING DUST.

LUBRICATION

All the bearings in this toot are lubricated with a sufficient amount of high grade lubricant for the life of the unit under normal operating conditions, therefore, no further lubrication is required.

EXTENSION CORDS

The use of any extension cord will cause some loss of power. To keep the loss to a minimum and to prevent tool overheating, follow the recommended cord sizes on the chart at right. When tool is used outdoors, use only extension cords suitable for outdoor use and so marked. Extension cords are available at

Sears Catalog Order or Retail Stores.

Extension Cord Length

25-50 Ft.

50-100 Ft.

Wire Size A.W.G.

16

14

WARNING: CHECK EXTENSION CORDS BEFORE

EACH USE. IF DAMAGED, REPLACE IMMEDIATELY.

NEVER USE TOOL WITH A DAMAGED CORD SINCE

TOUCHING THE DAMAGED AREA COULD CAUSE

ELECTRICAL SHOCK RESULTING IN SERIOUS IN-

JURY.

Page 8

L ,

THE FOLLOWING RECOMMENDED ACCESSORIES ARE CURRENT AND

WERE AVAILABLE AT THE TIME THIS MANUAL WAS PRINTED.

CORD LOCK

Cat. No. 9 2595

CARRYING CASE

Cat. No. 9 14703

CLOTH BACKED SANDING

Cat. No. 9 22304-X-Fine

Cat. No, 9 22301-Fine

BELTS

POLYESTER BACKED SANDING

Cat. No. 9 23201.X-Fine

Cat. No. 9 23202.Fine

BELTS

Cat. No. 9 22302.Medium

Cat. No. 9 23203-Medium

Cat. No, 9 22303-Coarse Cat. No. 9 23204-Coarse

CRAFTSMAN

Cat, No. 9 22305.X.Coarse

Dustless Sanding Attachment 9 11766

CAUTION: The use of attachments or accessories not listed above might be hazardous,

NOTES

Page 9

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SEARS

OWNERS

MANUAL

CRRFTSMRN

3 INCH

BELT SANDER

DOUBLE INSULATED

SERVICE

Now that you have purchased your Belt Sander, should a need ever exist for repair parts or service, simply contact any Sears Service Center and most

Sears, Roebuck and Co. stores.

Be sure to provide all pertinent facts when you call or visit.

MODEL NO.

315.117130

The model number of your Belt Sander will be found on the plate located on the side of your sander,

HOW TO ORDER

REPAIR PARTS

WHEN ORDERING REPAIR PARTS, ALWAYS GIVE

THE FOLLOWING INFORMATION'

• PART NUMBER

• MODEL NUMBER

315.117130

" PART DESCRIPTION

• NAME OF ITEM

3" Belt Sander

All parts listed may be ordered from any Sears Service Center and most Sears stores.

If the parts you need are not stocked order will be electronically transmitted

Repair Parts Distribution locally, to

Center for handling.

your a Sears

SEARS, ROEBUCK AND CO., Dept.

698/731A, Sears Tower, Chicago, IL 60684