Sears OWNERS MANUAL MODEL NO. 315.11701 CAUTION Read Rules for Safe Operation and Instructions Carefully CRAFTSMAN 3 INCH BELT SAN DER DOUBLE INSULATED SAVE THIS MANUAL FOR FUTURE REFERENCE Introduction Operation Maintenance Repair Parts (UL) % Designed 2612547 10-81 182 exclusively for and sold only by SEARS. ROEBUCK AND CO., Chicago, ," IL 60684 U.S.A. PRINTED IN U.S,A FULL ONE YEAR WARRANTY ON CR_AFTSMAN B_.LT SANDER If this Craftsman Belt Sander fails to give complete satisfaction within one year from the date of purchase 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. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. SEARS, ROEBUCK AND CO. BSC 41 - 3 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. All the bearings in this tool are lubricated with a sufficient amount of high grade lubricant for the life of the unit under normal operating conditions, therefore, no further lubrication is required. 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 protect the user. All exposed metal parts are isolated from the internal metal motor components with protecting insulation. RULES FOR SAFE OPERATION READ ALL INSTRUCTIONS -- IMPORTANT -- Servicing of a tool with double insulation 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. WARNING: KEEP HANDS AND FINGERS AWAY FROM MOVING SANDING BELT. ANY PART OF BODY COMING IN CONTACT WITH MOVING BELT COULD RESULT IN SERIOUS INJURY. KEEP HEAD AWAY FROM SANDER AND SANDING AREA. HAIR COULD GET CAUGHT IN MOVING PARTS AND FOREIGN OBJECTS COULD GET THROWN AWAY FROM SANDER CAUSING INJURY. WARNING: DO NOT ATTEMPT TO OPERATE 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. MAINTAIN OWNER'S MANUAL AND REVIEW FREQUENTLY FOR CONTINUING SAFE OPERATION, AND INSTRUCTING POSSIBLE THIRD-PARTY USER. 1. KNOW YOUR POWER TOOL -- Read owner's manual carefully. Learn its applications and limitations as well as the specific potential hazards peculiar to this tool. 2. GUARD AGAINST ELECTRICAL SHOCK BY PREVENTING BODY CONTACT WITH GROUNDED SURFACES. For example: Pipes, radiators, ranges, refrigerator enclosures. 3. KEEP GUARDS IN PLACE and in working order. 4. KEEP WORK AREA CLEAN. Cluttered areas and benches invite accidents. 5. AVOID DANGEROUS ENVIRONMENT. Don't use power tool in damp or wet locations or expose to rain. Keep work area well lit. 6. KEEP CHILDREN AWAY. All visitors should be kept safe distance from work area. Do not let visitors contact tool or extension cord. 7. STORE IDLE TOOLS. When not in use, tools should be stored in dry, high or locked-up place -- out of 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. 10. WEAR PROPER APPAREL. No loose clothing or jewelry to get caught parts. Rubber gloves and footwear are recommended when work=ng Also, wear protective hair covering to contain long hair. Page 2 in moving outdoors. RULES FOR SAFE OPERATION (Continued) if cutting 11. USE SAFETY GLASSES with all tools. Also face or dust mask 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. 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. Always check 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 _n. 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. 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. 24. INSPECT EXTENSION CORDS PERIODICALLY and replace if damaged. 25. KEEP HANDLES DRY, CLEAN, AND FREE FROM OIL AND GREASE. 26. STAY ALERT. Watch what you are doing and use common sense. Do not operate tool when you are tired. 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 defect29. 30. 31. Inspect for and remove all nails from lumber before sanding. DRUGS, ALCOHOL, MEDICATION. Do not operate tool under drugs, alcohol, or any medication. SAVE THESE INSTRUCTIONS. the influence of CAUTION The operation of any sander can result In forelgn objects belng thrown into the eyes, whlch can result In severe eye damage. Always wear safety glasses or eye shlelds before commenclng power tool opera. tlon. We recommend Wlde Vlslon Safety Mask for use over spectacles, or standard safety glasses... available at Sears Catalog Order or Retail Stores. Page 3 OPERATION WARNING: YOUR SANDER SHOULD NEVER BE CONNECTED TO POWER SUPPLY WHEN YOU ARE ASSEMBLING PARTS OR PERFORMING MAINTENANCE. If any parts are missing do not operate until the missing parts are replaced. DATA PLATE your Sander FRONT HANDLE Before attempting to use your Sander, familiarize yourself with all operating features (See Fig. 1) and safety requirements. WARNING: DO NOT ALLOW FAMILIARITY WITH YOUR SANDER TO MAKE YOU CARELESS. REMEMBER THAT A CARELESS FRACTION OF A SECOND IS SUFFICIENT TO INFLICT SEVERE INJURY. z ¸¸¸ SANDING BELT -TRACKING SCREW SWITCH The switch of this tool is equipped with a "lock-on" feature which is convenient when operating the tool for extended periods of time. To lock on. simply depress the trigger of the switch and depress the lock button located on the side of the handle. See Figure 1. To release the lock, depress the trigger and release it. BE SURE TOOL IS NOT IN THE "LOCKON" POSITION BEFORE CONNECTING TO POWER SUPPLY SOURCE. DO NOT LOCK THE TRIGGER ON JOBS WHERE THE SANDER MAY NEED TO BE STOPPED SUDDENLY. PREPARING FOR OPERATION Fig. 1 For ease of operation your Sander has a front handle and a rear handle. These handles allow two-hand operation which aids in maintaining control and keeping sanding area level with workpiece. When operating your Sander hold the front handle with your left hand and the rear handle with your right hand as shown in Fig. 2. WARNING: KEEP HANDS AND FINGERS CLEAR OF MOVING SANDING BELT AND FRONT IDLER PULLEY. FAILURE TO DO SO WILL RESULT IN THE SANDING OF YOUR HANDS OR FINGERS. See Fig. 3. WARNING: DO NOT LET YOUR FINGERS REST OVER THE FRONT OR RIGHT EDGE OF THE SANDER AS SHOWN IN FIG. 3. IF THE SANDING BELT WERE TO RUN OFF, OR IF IT WERE NOT PROPERLY ADJUSTED, YOUR FINGERS COULD COME IN CONTACT WITH THE MOVING SANDING BELT RESULTING IN POSSIBLE SERIOUS INJURY. Always operate your Sander in the correct position as shown in Fig. 2. CORRECT Fig. 2 Selecting the correct size and type sanding belt is an important step in achieving a high quality sanded finish. Standard 3 inch x 21 inch sanding belts made of aluminum oxide, silicone carbide, and other synthetic abrasives are best for power sanding. In general, coarse grit will remove the most material and finer grit will produce best finish in all sanding operations. The condition of the surface to be sanded will 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 finer grit belt used for finishing of the surface. Always continue sanding with each grit belt until surface is uniform. INCORRECT Fig. 3 Page 4 OPERATION WARNING: ALWAYS WEAR SAFETY GLASSES OR EYESHIELDS WHEN OPERATING YOUR SANDER. IF THE SANDING OPERATION IS DUSTY, ALSO WEAR A FACE OR DUST MASK. FAILURE TO DO SO COULD RESULT IN DUST OR LOOSE PARTICLES BEING THROWN INTO YOUR EYES, RESULTING IN POSSIBLE SERIOUS INJURY. INSTALLING DISCONNECT AND ADJUSTING SANDER SANDING BELT FROM POWER SUPPLY. To release the sanding belt, push the front pulley squarely against the top of workbench as shown in figure 4. When sufficient pressure is exerted, the spring will be compressed allowing 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 is pointing in the direction of rotation, which is clockwise when looking into open side of sander. See Fig. 5. Roughly align the belt to its correct position. Then place sander into position shown in figure 6. Insert a screwdriver into slot on idler pulley yoke and apply backward pressure. The pulley will snap back into operating position. Fig. 4 Fig. 5 To adjust sanding belt, connect Sander to power supply. Place Sander in upside down position as illustrated. See Fig. 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 the Sander and fine adjust the tracking screw until the belt stabilizes. Fig. 6 SANDING BELT t "_ When correctly adjusted, the outer edge of the belt will be even with the outer edge of the base of the Sander. Belt life will be greatly increased if a few seconds are spent adjusting the belt tracking. TRACKING SCREW o Fig. 7 Page 5 OPERATION TO OPERATE Clamp or otherwise secure the work to prevent it from moving under the Sander. WARNING: UNSECURED WORK COULD BE THROWN BACK TOWARD OPERATOR CAUSING INJURY. Before placing Sander on work surface, press the trigger switch and let the motor reach its maximum speed, then lower the Sander to the work surface with a slight forward motion. Using the rear handle to control the Sander and the front handle only to guide it, move it slowly over the work. See Fig. 8. Allowing the 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 INJURY. The Sander was designed to provide the proper weight on the sanding belt and extra pressure will only result in uneven work, clogged belts, and possible motor burnout. 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. ,I Fig. 8 WEAR PAN HEAD PLATE _ SCREW "_'_ : _--_,, MAINTENANCE WHEN SERVICING USE ONLY IDENTICAL REPLACEMENT PARTS. Periodically sawdust will accumulate between the base and idler roller assembly, causing difficulty when releasing tension on the sanding belt. It may also cause the sanding belt to slip during use and can make sanding belt tracking adjustments (see page 5) difficult. TO CLEAN SAWDUST FROM IDLER ROLLER ASSEMBLY DISCONNECT SANDER FROM POWER SUPPLY. 1. Remove sanding belt from sander. See Installing and Adjusting Sanding Belt, Page 5. Once sanding belt is removed, insert screwdriver into slot and snap IDLER ROLLER ASSEMBLY back into operating position. Lock and release the idler roller assembly several times, without a sanding belt installed. The mechanism should now operate freely. Re-install sanding belt, make proper adjustments, and test the operation of the tool to determine whether it is performing satisfactorily. If the performance has not improved, proceed to Step 2. 2. Remove the two pan head screws. Then remove wear plate and backing pad. See Figure 9. 3. Remove tracking screw, washer, spring, and flat head screws. Then remove base. 4. Using a clean soft cloth or brush, clean base, idler roller assembly, tracking screw, and motor housing. 5. Reassemble tool. NOTE: THE LEAF SPRING, BUSHING, IDLER ROLLER ASSEMBLY, AND IDLER ROLLER SPRING MUST BE POSITIONED AS SHOWN IN FIGURE 10. Also, make sure slot in idler roller assembly is engaged with motor housing pin and bushing. TRACKING SCREW _'_ TRACK _ _ NG SCREW SPRING _ ,MOTOR . HOUSING + WASHER MOTOR HOUSING PIN Fig. 9 LEAF BUSHING_ SPRING MOTOR _PIN HOUSING IDLER ROLLER SPRING IDLER ROLLER ASSEMBLY Fig. 10 Page 6 MAINTENANCE TIMING BELT REPLACEMENT DISCONNECT SANDER FROM POWER SUPPLY BEFORE SERVICING WARNING: WHEN REPLACING TIMING BELT, USE REPLACEMENT BELT NUMBER 990077.001 ONLY. See Key Number 5 on Parts List, Page 11. FAILURE TO DO SO WILL INTERFERE WITH THE INSULA. TION SYSTEM AND THE PERFORMANCE OF THE TOOL, CAUSING THE BELT TO SLIP AND WEAR EXCESSIVELY. 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 7 and 8 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 completely worn out, simply cut the old belt in two and remove it. 4. Install new belt over large pulley first, making sure teeth on belt mesh with teeth on pulley. See Figure 11. 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. 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. \ -APPLY PRESSURE HERE,WHILE TURNING COUNTERCLOCKWISE Fig. 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 IN A COUNTERCLOCKWISE DIRECTION AS YOU PRESS THE BELT ONTO THE SMALL PULLEY. 6. Re-assemble beq cover and screws. WARNING: THE BELT COVER IS PART OF THE DOUBLE INSULATION SYSTEM AND MUST BE REPLACED PRIOR TO USE. FAILURE TO DO SO COULD RESULT IN ELECTRICAL SHOCK CAUSING POSSIBLE SERIOUS INJURY. 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 THIS OPERATION. Wire Size A.W.G. Extension Cord Length 25-50 Ft. 16 _ 50-100 Ft. 14 WARNING: CHECK EXTENSION CORDS BEFORE EACH USE. IF DAMAGED, REPLACE IMMEDIATELY. NEVER USE TOOL WITH DAMAGED CORD SINCE TOUCHING THE DAMAGED AREA COULD CAUSE ELECTRICAL SHOCK RESULTING IN SERIOUS INJURY. THE FOLLOWING RECOMMENDED ACCESSORIES ARE CURRENT AND CORD LOCK WERE AVAILABLE AT THE TIME THIS MANUAL WAS PRINTED. Cat. No. _12595 CLOTH BACKED SANDING BELTS POLYESTER BACKEp SANDING CARRYING CASE Cat. No. _) 22304-X.Fine at. No. _ 23201-X.F,ne Cat. No. _ 1473 Cat. No. _ 23202-Fine Cat. No. _)22301-Fine Cat. No. _ 23203-Medium Cat. No. _122302-Medium Cat. No. _)22303-Coarse Cat. No. _ 23204-Coarse I:R Cat. No. _) 22305-X-Coarse CAUTION: The use of attachments 11 or accessories Page 7 not listed above might be hazardous. BELTS NOTES Page 8 NOTES Page 9 CRAFTSMAN 3 INCH BELT SAN,IER -- MODEL NUMBER NOTE "A" 315.11701 PAGE 11 5 6 7 3 13 12 11 / 8 t 18 21 FOR PARTS LIST -- SEE PAGE 11 Page 10 CRI:iFTSIqI:IN" Sears 3 INCH BELT SANDER OWNERS MANUAL DOUBLE SERVICE INSULATED 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. The model number of your Belt Sander will be found on the plate located on top of your sander. 315.11701 HOW TO ORDERREPAIR.PARTS WHEN ORDERING THE FOLLOWING REPAIR PARTS, INFORMATION: ALWAYS • PART NUMBER • PART DESCRIPTION • MODEI_"4 U M BE R • NAME OF ITEM 3" Belt Sander 315 .,11_ _ _ll parts l_stea may be ordered from vice Center and most Sears stores. any Sears GIVE Ser- If the parts you need are not stocked locally, your order will be electronically transmitted to a Sears Repair Parts Distribution Center for handling. SEARS, ROEBUCK AND CO., Chicago, IL 60684 U.S.A.