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" . PM - 1697 Power Tools Revised : 12 - 15 - 55 - 37 - 8 : Jointer Instruction Manual U . S . Patent No . 1,790,288 ; 1,967,791 ; 1,975,562 ; Des . 156,923 ~ No . 37 - 110 HOME CRAFT 4 " JOINTER ' . Operating and Maintenance Instructions . . MOTOR , PULLEYS AND IBELT The Homecraft 4 " Jointer is an accurate machine , ideal for the home workshop . Its maximum depth of We recommend our No . 61 : 1 - 013 Y3 cut is ~ - inch . cycle , 1725 R . P . M . bronze bearing 1.110 " for medium duty work . Each jointer is inspected and tested before shipment . These machines will give excellent results if properly For heavy duty work use a No . 62 - 413 , Y3 H . P . used and maintained . The adjustments for various 1725 R . P . M . capacitor motor , 60 cycle , single phase , operations are described below ; read and follow the 115 volts , alternating current only . instructions carefully . Any other constant speed motor of } 4 hp or greater Our illustrated book No . 4701 - W , " Getting the Most capacity may be used . Consult your Delta dealer for out of Your Circular Saw and Jointer , " contait'ls addi - the correct motor if the electric current available is tional information about all jointer operations . different from that indicated above . Refer to Fig . 16 and Table 1 to identify the parts mentioned in the following instructions . Speed of the cutter head should be about 4000 rpm for best results . The correct speed is obtained with the No . 60 - 013 motor by using the 6 ~ - inch motor pul - CONSTRUCTION FEATURES ley No . 5650 in conjunction with the 2 ~ - inch cutter head pulley J - 17 - S which is furnished on the jointer . The cutter head of this jointer runs in sealed ball For any other motor , order a pulley of the correct bearings which need no lubrication throughout their bore to fit the shaft , give the speed of the motor , and . . . , I life . It carries three high speed s ~ eel knives which are specify that you want the right diameter for running a easily adjusted and securely locked in their dove - tail 2 ~ - inch drive pulley at 4000 rpm . grooves . The cutter head must rotate forward on top . If your motor runs in the wrong direction , reverse it The fence on this Jointer is finish grourid to increase according , to the manufacturer's instructions , or in the accuracy , and is heavily ribbed for rigidity and to case of a double - shaft motor , turn it end for end ; prevent warping . The No . 453 V - Belt , offered for use with this jointer , has an outside circumference of 47 } 4 inches . It will accommodate the usual installations . Consult your Delta dealer if you need a belt of other length to fit special conditions . MOUNTING AND ASSEMBLING The jointer , shown in Fig . 1 , is shipped complete in a single package marked No . 37 - 110 . It consists of two units , the body and the fence , bolted to a wooden skid . The knife guard and a wrench for the lock screws of Fig . I . Homecraft 4 " Jointer the cutter head are included . The motor and other items of your order are supplied in separate packages . The fence is 20 inches long by 3 inches high and can be easily locked in any position across the table . This In choosing a location for the machine , be sure to allow clearance in front of a : nd behind the tables for allows tilting 45 Â° right or left . It is also provided with jointing long pieces . an adjustable stop so the fence can be returned at right angles to the table . Figure 8 shows a set - up of the jointer with the motor placed to the right of the belt . A bench top 18 inches Front and rear tables are finish ground after as - wide by 30 inches long is sufficient . Cut a hole under , , sembly on the base . This additional operation assures the jointer , so the chips will fall into a receptacle such the true alignment necessary for accurate work and is a as the paper bag shown suspended below the bench . feature usually found only in the larger and more In this arrangement the jointer may be set directly on expensive machines . the bench , omitting the shim blocks . The customer -
can easily build such a bench , using our No . 344 steel is high or low at either end , loosen its lock screws J - 23 bench legs . slightly , shift the blade until it just touches the straight edge , and tighten securely . A portable unit can be made by mounting the jointer and motor on a 2 x 12 - inch dressed plank 30 inches Raise or lower the rear table as required , by turning long . It may be placed on any convenient work table the hand knob HJ - 12 . After it has been set at the ' - - ' for operation and stored on a shelf when not in use . correct height , it should not be changed , except for The 2 - inch blocks shown in Fig . 8 must be inserted special operations and after sharpening knives . under the jointer base for such mounting , to raise the machine so that the motor can be placed directly back of the rear table and to allow removal of chips . Use long bolts through the base , blocks and plank . Some operators prefer to mount the motor on a shelf below the bench . In such installation , run the belt through a slot in the bench top , or locate _ the machine and motor so that the pulleys extend beyond the edge . Arrange a chute for the chips , so that they do not fall onto the motor . Having decided upon the arrangement most suitable ES : ~ ~ ~ for your needs , set the jointer body in its pcoposed position . Install the motor pulley and drive belt . Lo - REAR TABLE Too HIGH cate the motor so that the pulleys are in line , with the shafts parallel and the belt tight enough to prevent Fig . 3 . slipping . Mark and drill the mounting holes . Use ordinary 5 / 16 - inch carriage bolts of proper length for If the rear table is too high , the result will be as fastening the machine and motor . shown in Fig . 3 ; the finished surface will be curved . Mount the fence on the jointer by slipping the cross When the rear table is too low , the condition will be slide bracket HJ - 6 into the slot under the front table as illustrated in Fig . 4 ; the work will be gouged at the end of the cut . ' HJ - 2 . Install the knife guard J - 13 - S on the front table , connecting the coil spring as shown in Fig . 1 . The machine is now ready for adjustment and opera , tion . OPERATING ADJUSTMENTS ' - Although the jointer is carefully adjusted at the factory , it should be checked before it is put into opera - tion . Any inaccuracies due to parts shifting in transit can easily be corrected by following these directions : Rear Table and Knife Adjustment R2c61 For accurate work in most jointing operations , the , , - - _ J rear table HJ - 3 must be exactly level with the knives REAR TABLE Too Low at their highest point of revolution . This means , of course , that the knives must be parallel to the table Fig . 4 . and project equally from the cutter head . As a final check of the rear table adjustment , run a piece of wood slowly over the knives for 6 to 8 inches ; it should rest firmly on both tables , as shown in Fig . 5 , with no open space under the finished cut . ' RtAR TABLE METHOD FOR CHECKING REAR TABLE ELEVATION AND KNIFE ALIGNMENT Fit . 2 . ~ < : : : ~ ~ \ - . " ' To check the adjustment , place a steel straight edge on the rear table , extending over the cutter head as REAR TABLE AT CORRECT HEIGHT shown in Fig . 2 . Rotate the cutter head by hand . The Fig . 5 . blades should just touch the straight edge . If a knife 2
CUTTER HEAD MAINTENANCE Depth of Cut After considerable use , the knives will become dull The amount of material removed by a single cut can and it will not be possible to do accurate work . Unless be any thickness from a very thin shaving to ~ inch . badly damaged by running into metal or other hard Adjust for depth of cut by raising or lowering the material , they may be sharpened as follows : front table , using the hand knob HJ - 12 on the front of the base . Whetting Knives Fence Adjustments Use a fine carborundum stone ; cover it partly with paper as indicated in Fig . 6 , to avoid marking the The fence may be set at any position within the table . Lay the stone on the front table , lower the table width of the table . Lock it by turning the bolt J - 36 - S and turn the cutter head forward until the stone lies into the cross slide bracket HJ - 6 from below . flat on the bevel of the knife , as shown . Hold the To tilt the fence , loosen the segment HJ - 5 by turn - cutter head from turning , and whet the bevelled edge ing the handle SR - 217 . When tilting to the left , flip of the knife , stroking lengthwise by sliding the stone ' . the stop link J - 19 out of the way to pass the stop screw back and forth across the table . Do the same amount SP - 108 . Set the fence to the desired angle on the tilt of whetting on each of the three blades . scale and lock it by means of the handle SR - 217 . This Jointing Knives handle is adjustable on the serrated nut HJ - 9 so that Knives may also be sharpened and brought to a it can be set to the most convenient position . true cutting circle by " jointing " their edges while the The face of the fence should stand exactly square cutter head is revolving . To do this , place the car - with the tables when the stop SP - 108 is against the borundum stone on the rear table as shown in Fig . 7 . stop link J - 19 . Check this with a mechanics ' square . Joint two adjacent faces of a piece of work , being careful to keep the first face firmly against the fence OILSTONE PARTLY while the second is being jointed . Check the angle COVERED WITH PAPER between the finished faces . If not exactly at right angles , make the correction by turning the s . top screw against the link , or backing away , as required . When the setting is correct , lock the stop screw by means of its hexagon nut SP - 1029 . Set the pointer L - 24 to zero on the tilt scale . The scale will then indicate correctly any angle to which the fence is tilted , and the fence will return to the square position when the stop screw is JOINTING KNIVES brought into contact with the stop link . Fig . 7 . LUBRICATION Be sure that the rear table is at the highest point of the cutting circle . Start the machine and move the stone The use of sealed bearings on the cutter head elimi - forward until it projects over the knives ; then move it nates the need for lubrication of these parts . It is across the table so that the knives are jointed their advisable to protect the finished surfaces of the fence entire length . Keep the stone flat on the table . If the and tables from rusting , by using " Stop Rust " after stone does not touch the knives at all points , lower the each days use . Apply a drop or two of light machine oil rear table one or two thousandths of an inch and repeat . When this operation is carefully done , the knives will to the table ways and the sliding parts of the fence cut very smoothly . so that these parts will operate freely . Setting Knives If the knives have been removed from the cutter head , care must be used in re - setting them . Each knife should be placed in its groove so that the rear edge of the bevel projects 1 / 16 inch beyond the surface of J - 22into place the cutter head . Slip the knife lock bars and tighten the lock screws J - 23 lightly . Aqjust the knives for true cutting circle , using the straight edge as described under " Rear Table and Knife Adjust - ment . " Check all lock screws to be sure that they are CUTTER tight . Joint the knives lightly before running any work . Cutter Head Repairs WHETTING KNIVES When the knives cannot be properly sharpened by r the methods described above , they must be ground to a Fig . 6 . new bevel edge . In such case , or when bearings need 3
replacement , remove the entire cutter head with bear - the piece for accurate work , with due regard for the ings and housings from the base and return it to the safety of the operator . The knife guard was removed factory . Back out the fillister head screws SP - 701 from for these pictures , to better show the action of the the bearing housings J - 32 and J - 33 , inside the base , to cutter head . However , we urge the operator to keep release the cutter head assembly . See the footnote of the guard in its regular position whenever possible , Table 1 for repair service prices . for his own protection . . . When installing the cutter head in the jointer , be sure to clean the curved seats of the base and tighten the SP - 701 screws firmly into the bearing housings . MAINTENANCE Gum and Pitch which collects on the blades causes excessive friction as the work continues , resulting in over heating the blades , less efficient cutting , and con - sequently loss of blade life . Use " Delta Gum and Rust Remover " to wipe this off the blades . When these blades become dull enough so that it is noticeable when cutting , they shoulq be resharpened . A sharp blade works easier and results in longer blade life . The penalty paid for a dull blade is less blade life and greater wear and tear on all parts of the machine . In time rust will appear on the table and fence and other parts of the jointer , resulting in less efficiency Fig . 9 . Jointing an Edge - Middle of Cut . and accuracy of the machine . Use " Stop Rust " which can be applied to prevent rust formation . If , however , At the start of the cut , the left hand holds the work rust has already formed on these parts use " Delta firmly against the front table and fence , while the Rust Remover " which will restore the machine to its right hand ( not shown in Fig . 8 ) pushes the work original accuracy when applied . Using " Stop Rust " toward the knives . After the cut is under way , the after each time you use the machine will put a film on new surface rests firmly on the rear table as shown the parts it is applied to , preventing rust formation . in Fig . 9 . The left hand should press down on this part , at the same time maintaining flat contact with the fence . At the end of the operation the position is as in OPERATION The following directions will give the beginner a oJ " start on jointer operations . For additional information consult a handbook such as mentioned on Page 1 . Use scrap pieces of lumber to check settings and to get the feel of the operations before attempting regular work . Jointing an Edge This is the most common operation for the jointer . Set the guide fence square with the table . Depth of cut should be the minimum required to obtain a straight edge . Hold the best face of the piece firmly against the fence throughout the feed . The operation is il - lustrated in Fig . 8 to 10 . Use of Hands While Feeding The pictures of the edge jointing operation show the manner in which the hands should be used to guide Fig . 10 . Jointing an Edge - - End of Cut . Fig . 10 . Note that the right hand presses the work forward throughout , protecting the operator against kick - back from the knives . Jointing Warped Pieces If the wood to be jointed is dished or warped , take light cuts until the surface is flat . Avoid forcing such material down against the table ; excessive pressure will > < " " " spring it while passing the knives , and it will spring back and remain curved after the cut is completed . - Jointing Short or Thin Work When jointing short or thin pieces , use a push block Fig . 8 . Jointing an Edge - - Start of Cut . to eliminate all danger to the hands . Two types are 4
' \ \ firmly against the fence and tables . Several passes may be necessary to arrive at the desired result . When the angle is small , there is little difference whether the fence is tilted to the right or left . How - ever , at greater angles , approaching 45 degrees , it is ~ ~ increasingly difficult to hold the work properly when the fence is tilted to the right . The advantage of the double - tilting fence is appreciated under such condi - Fig . II . Push Blocks . tions . When tilted to the left , the fence forms a V - shape with the tables , and the work is easily pressed into the shown in Fig . 11 . They are easily made from scrap pocket while passing it across the knives . If the bevel material . is laid out on the piece in such direction that this Direction of Grain involves cutting against the grain . it will be better to tilt the fence to the right . Avoid feeding work into the jointer against the grain as shown in Fig . 12 ; the result will be chipped Taper Cuts and splintered edges . Feed with the grain as in Fig . 13 . to obtain a smooth surface . One of the most useful jointer operations is cutting an edge to a taper . The method can be used on a wide variety of work . Tapered legs of furniture are a com - mon example . Instead of laying the piece on the front table , lower the forward end of the work onto the rear table . Do this very carefully . as the piece will span the knives , and they will take a " bite " from the work , with a tendency to kick back unless the piece is firmly held . Now push the work forward as in ordinary jointing . The effect is to plane off all the stock in front of the knives . to increasing depth , leaving a tapered surface . The ridge left by the knives when starting the taper may be removed by taking a very light cut according WRONG FEED - AGAINST THE GRAIN to the regular method for jointing , with the front table raised to its usual position . Fig . 12 . Practice is required in this operation , ancLthe be ; : ginner is advised to make trial cuts on waste material . ~ . ~ Taper cuts over part of the length and a number of other special operations can easily be done by the ex - perienced craftsman . Consult the handbook for direc - tions which will greatly increase your skill in obtaining a wide variety of results . Stop Chamfering Figure 15 shows the cutting of a stop chamfer , an operation for which the rear table must be lowered from its usual position . The tables must be set to the CORRECT FEED - WITH THE GRAIN Fig . 13 . Rabbeting The arm of the front table and ledge of the rear table provide for cutting rabbets up to Y4 inch deep and 4 inches wide . The operation is illustrated in Fig . 14 . The knife guard must be removed . Set the fence to control the width of rabbet , measuring from the end of the knives to the face of the fence . Lower the front table to determine the depth of cut . Feed slowly when making a deep cut , to avoid splitting the wood . For wide cuts , make two or more passes at increasing depths . Use a push block when rabbeting the end of narrow stock . ~ ' - ' Beveling To cut a bevel , lock the fence at the required angle Fig . 14 . Cutting a Rabbet and run the work across the knives while keeping it 5
same level . Depth of chamfer is determined by the amount the tables are lowered . FENCE CLAMP The stop block clamped to the front end of the ~ ence prevents kick - back . Locate it to start the chamfer r STOP BLOCK at the right place , and use a similar stop block at the ~ - - - - - - - - - - - - rear end of the fence to control length of cut . These settings should be made before the machine is started . Roughness caused by cutting against the grain at the end of the chamfer may be smoothed by sanding , or CUTTER the cut may be run half way and reversed . BoTH TABLES ARE LOWERED EQUALLY FOR The true stop chamfer is a bevel cut , and is made STOP CHAMFERING with the fence tilted to the required angle . The method FI , . 15 . is , however , as shown in Fig . 15 for a square cut . ~ " Â§ f ' J - 40 & ' : 1111 ' " ' t . ~ : : ~ ~ : : ~ : ~ _ 133 No . 37 - 110 SP - 406 ( 2 ) HOMECRAFT ( 2 ) SP - IOO5 ( 4 ) J - 12 4 " JoINTER SP - 1O1 ( 4 ) ~ ~ ( 2 ) 11 - 12 - 47 Q Fig . 16 . 6
Table 1 . REPLACEMENTPARTS IMPORTANT : Give both the Part Number and the Description of each item when ordering from this list ; also the Serial Number of the machine on which the parts are to be used . No . No . ~ . ; ; Req . Description Req . Description Part No . I I Part No . I I I FENCE BODY HJ - 16 FrontTable l * HJ - 2 FenceBody l HJ - l6 - S Fence , Complete , Assembled . . . . . . . . . . . . . . . 1 Rear Table I * HJ - 3 HJ - 5 Fence Segment , Casting Only . . . . . . . . . . . . . . 1 Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 * HJ - ll HJ - 5 - S Fence Segment , with Stop Link and Pointer 1 HJ - 12 Hand Knob , 2X " Diameter , 72 " - 13 Thread . . 2 HJ - 66 Cross Slide Bracket 1 HDP - 133 Name Plate , 1 ~ 6 x 4 % " , Homecraft 1 HJ - - S Cross Slide Bracket , w / Stop Screw & Tilt Scale 1 J - 8 Stud , Y2 - 13 x 2 % " , Threaded One End 2 HJ - 789 TiltAngleScale , Y2x3 % " 111 J - ll HJ - Stud , % - 16 x 2X " , Threaded Both Ends 2 Stud , % - 16 x 1 % " , Threaded Both Ends HJ - J - 12 % " - 16 Serrated Nut , X " - 20 Tapped Head . . . Speciall ~ " SpringWasher 4 BM - 46 Special 2 % ( " Steel Washer . . . . . . . . . . . . . 1 J - 13 - S Knife Guard , with Pivot Pin & Return Spring 1 J - 195 Stop Link , lYs " Long , l ~ " Hole 1 J - 14 Steel Pin , } } ' 6x 1 } } ' 6 " ' Chamfered Both Ends . . 1 J - 3 Steel Pin , } } ' 6x 11 ~ " , Cone Point . . . . . . . . . . . 11 J - 15 Coil Spring , } } ' 6 " Diameter , with Hooks . . . . . . 1 J - 36 - S Lock Bolt , Y2 - 13 x lYs " , w / Ball - End Handle SP - 406 X - 20 x % " Flat Head Machine Screw 2 J - 424 Steel Pin , ~ 6 x Ya " , Cone Point . . . . . . . . . . . . . 11 SP - IOO5 % " - 16HexagonJamNut 4 J - 4 Special # 8 - 32 x % ; " Headless Set Screw . . . . . . SP - 1606 } } ' 6 " SteeIWasher 4 L - 24 Center Point , Y2 " Long , ~ 6 " Straight Body . . 1 SP - 21012 NCS - 33 ~ x % " CotterPin 2 Coil Spring , 3 ~ " Diameter , Y2 " Free Length 1 SR - 217 SP - 225 Ball - End Adjustable Clamp Handle . . . . . 11 # 2x ~ 6 " DriveScrew 4 Serial No . Plate 1 SP - I08 SP - 5000 X - 20 x % " Headless Set Screw SP - 908 ~ Â§ - 18 xl " Round Head Stove Bolt . . . . . . . . . 3 * * CUTTER HEAD SP - 5O9 ~ - 20 x Y2 " Round Head Machine Screw 1 SP - 1219 X " - 20HexagonNut l J - 31 - R Cutter Head , Assembled with Knives , Ball Steel Washer 1 SP - 16l14 Bearings and Bearing Housings . . . . . . . . . . 1 SP - 225O # 4 X ~ 6 " Drive Screw . . . . . . 2 J - 17 - S 2 % " Cutter Head Pulley , with Set Screw 1 J - 22 Knife Lock Bar , } } ' 6x 3Ya " , X " Thick . . . . . . . 3 MISCELLANEOUS J - 23 Special X - 28 x X " Hexagon Hd . Set Screw . . 9 J - 40 ~ 6 " Open End Stamped Steel Wrench . . . . . . . 1 J - 32 Bearing Housing for Pulley Side . . . . . . . . . . . . 1 SP - 2 % 2 " Hexagon Wrench for Socket Screws . . . . . 1 J - 33 Bearing Housing for Left Side . . . . . . . . . . 1 NJ - 294 Double End % ; " Open Wrench , Forged Steel 1 J - 48 Special % " SteeIWasher 2 No . 3443 Bench Leg , Pressed Steel , Welded , 31 " High . 2 SP - 201 ~ 6 - 18 x % ; " Hexagon Socket Set Screw 1 No . 45 V - Belt , 47X " Outside Circumference 1 SP - 701 X - 20 x % " Fillister Head Machine Screw . . . 2 No . 5650 6Y2 " Motor Pulley , with Set Screw ( Specify - - - SP - 1702 X " SplitLockwasher 2 Y2 , % or % " Bore ) 1 - . ) No . 37 - 802 SP - 201 % , . . 18 x ~ 6 " Hexagon Socket Set Screw 1 Knife Blade , l % ! x4 " , J - 21 , Setof3 1 CONSULT YOUR DELTA DEALER FOR PRICES OF REPLACEMENT PARTS , ACCESSORIES AND TOOLS TO FACILITATE HANDLING WE SUGGEST ORDERING ALL PARTS THROUGH YOUR DELTA DEALER . * IMPORTANT : Base , front and rear tables cannot be supplied separately , as the re - assembled machine would not be accu - rate . For true alignment , we finish - grind our jointer tables after assembly on the base . When a new table or base is required , ship the machine , less fence and knife guard , to the factory for rebuilding . The cost will be the list price for the new part plus a fixed charge for assembling and grinding the tables . * * NOTE - Cutter Head Repairs : Special tools are required to remove and replace ball bearings on the cutter head . When the bearings or cutter head need replacement , order a complete new cutter head assembly J - 31 - R , or return the old one to us for repairing for which there is nominal charge covering repair work plus a small labor charge per bearing for installing . Knife Sharpening Service : Our charge for re - grinding and setting knives will be a n ~ minal net charge per cutter head , F . O . B . factory . Be sure to send the complete cutter head assembly with bearings and housings , less pulley , by prepaid express or parcel post insured for $ 15.00 , for repair or sharpening service . PRICESSUBJECTTO CHANGE WITHOUT NOTICE The right is reserved to make changes in design or equipment at any time without incurring any obligation to install these on machines previously sold . and to discontinue models of machines , motors or acCessories at any time without notiCe . Foreign distribution is through TAUCO EXPORT CORPORATION , 38 Pearl Street , New York 4 , N . Y . , to Puerto Rico and the Canal Zone and to all foreia : n countries except Canada and the Philippine Islands . ~ Distn'bution in the United States . its possessions except Puerto RiCo and the Canal Zone . and in Canada and the Philippine Islands is by authorized Delta Dealers . PENNSYLVANIA 0 DREoLckTwAell POWMEARNUFATCOTOUL RINDGIVISIOCNOMPANY PITTSBURGH 8 , f I PrInted In U . S . A . -
, 4 " JOINTERS 10 " BAND SAW 8 " CIRCULAR SHAPER SAWS DELTAGRAM BUFFER DRILL PRESS GRINDER HOMECRAFT ACCESSORIES PowerT0015 MOTORS \ . . , I for the BOOKS AND MANUALS PLANS HOMEWORKSHOP PLAN SHEETS 11 " LATHE FLEXIBlE SHAFT V - BELT 10 " LATHE TOOLS PULLEYS COMBINATION 16 " SCROLL SAW SAW - JOINTERS - . . J . - - ~