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    GRANITE 1300 SERIESCOMBINATION LATHE/MILL/DRILLOPERATOR’S MANUALUpdated April, 2008170 Aprill Dr., Ann Arbor, MI, USA 48103 Toll Free 1-800-476-4849www.smithy.com

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    ©2008 Smithy Co. All rights reserved (Revision 3).170 Aprill Dr., Ann Arbor, Michigan, USA 48103 Toll Free Hotline: 1-800-476-4849 Fax: 1-800-431-8892 International: 734-913-6700 International Fax: 734-913-6663 All images shown are from Granite Classic 1324 model.All other images for other Grani...

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    Table of ContentsChapter 1: IntroductionWelcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1Contact Information and Customer Information . . . . . . . . . . . . . . . .1-2Chapter 2: SafetyOverview . . . . . . . . . . . . . . . . . . . . . . ...

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    Ways . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5Carriage Assembly - Saddle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5Carriage Assembly - Cross-Slide Table . . . . . . . . . . . . . . . . . . . . . . .5-6Compoun...

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    Chapter 7: Manual OperationsOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1Changing Between Lathe and Mill Operation . . . . . . . . . . . . . . . . . .7-1Manual Feeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

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    Chapter 12: TroubleshootingPowerfeed and Thread Cutting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-1Carriage/Milling Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-2Lathe Turning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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    Appendix A: Machining Reference GuideHow to Determine Speeds and Feeds for Lathe Turning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1Turning Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1Cutting Spee...

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    WelcomeCongratulations on the purchase of your Smithy Granite machine. We welcomeyou to the Smithy family. Smithy strives to provide you with the best in machinetools. Please read through this manual carefully to ensure that you get the mostout of your Granite 3-in-1 lathe-mill-drill.The purpose ...

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    Granite 1300 Series Operator’s Manual1-2For Assistance: Call Toll Free 1-800-476-4849Suggestions or CommentsWe are interested in any suggestions you might have to improve our productsand services. Feel free to contact us with your suggestions by phone or inwriting. If you have comments about th...

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    Over viewSmithy machines are proven to be safe and reliable; however, if abused or operatedimproperly, any machine can cause injury. Please read this manual carefully before youstart machining. Proper use will create a safe working environment and prolong the lifeof your machine.Symbols Used In T...

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    Shop Safety RulesYour workshop is only as safe as you make it. Take responsibility for the safety of thosewho use or visit it. This list of rules is by no means complete, so remember that commonsense is a must.Smithy strongly discourages the use of casters or wheels on metal-working machinebenche...

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    Machine Safety Rules1. Stop the machine before servicing. Stop the machine before making changes,removing debris, or measuring your work. 2. Don’t over reach. Don’t reach over the machine when it’s operating. Keep your handsout of the way.3. Turn the switch OFF. Turn the switch to off befor...

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    OverviewIt is a good idea to take inventory of the parts of your machine soon after it isunpacked. By doing so, you can quickly determine if any parts are missing. In addition,should you find it necessary to return the machine to Smithy for any reason, theinventory will ensure that all the parts ...

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    3-2Or Visit www.smithy.comItems Packed in the Larger Smithy BoxThe following items are packed in the larger of the two Smithy boxes.3: Inventory Check ListK Air MaskPart # 15-020Quantity 1K Protective GogglesPart # 15-015Quantity 1 K Ear PlugsPart # 15-025Quantity 1 Set K Oil CanPart # 80-100Quan...

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    K Drill Chuck, JT3, 0.8-16 mm with key (for millhead)Part # 72-003 Quantity 1K Drill Chuck Arbor, R-8/JT3Part # 73-080Quantity 1 K Drill Chuck,JT33, 0.8-13 mmwith key (for tailstock)Part #72-001Quantity 1 K Drill Chuck Arbor,MT3/JT33Part # C30523Quantity 1 K Arbor Plug (M12 x 1.5 x 20 mm setscr...

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    3: Inventory Check List3-4Or Visit www.smithy.comK Spindle to Speed Reduction Pulley BeltPart # G02043-A630 OrPart # G02043A 1/2” x 27Quantity 1 K Speed Reduction Pulley To Motor Pulley BeltPart # G02034-A710 OrPart# G02034A-1/2” X 30Quantity 1 K Outside Jaws for Lathe ChuckPart # Quantity 1 ...

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    K DVD, Machine Tool BasicsPart # 12-003Quantity 1K Manual CoverPart # 83-942Quantity 1K Quick Change Toolpost* (Mounted)Part # 45-271Quantity 1K Chuck Guard(Mounted)Part # 15-610Quantity 1K Operator’s ManualPart # 83-950Quantity 1K Live Center** (Large Box)Part # 41-103Quantity 1K 3” Superloc...

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    4-1Or Visit www.smithy.comOverviewThis chapter will help you to familiarize yourself with the Smithy Granite 1300 models andstandard accessories. Figures 4.1 through 4.15 identify the major components andfunctions of your machine. The photographs in this section depict a Granite 1324 model.Distin...

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    Figure 4.2 Granite 1324 Back ViewTailstockMillheadCarriageAssemblyMotorAssemblyGranite 1300 Series Operator’s Manual4-2For Assistance: Call Toll Free 1-800-476-4849

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    Millhead Components & FunctionsThe photos below show the front and back of the millhead of the Smithy Granite machine.The millhead holds the tooling necessary to perform milling and drilling operations. Thefollowing section identifies the components and functions of the millhead. A. Spindle C...

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    G. Drill/Mill Fine Feed Handwheel - The handwheel controls the fine feed movementof the quill in and out of the millhead. H. Height Adjustment Drive - The height adjustment drive works with the millheadcrank to raise and lower the millhead. Insert the millhead crank over the stud, as inFigure 4....

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    Powerhead Components & FunctionsA. Lathe/Mill Clutch - This clutch engages the mill portion of the Smithy Granite Lathe-Mill-Drill when pulled out and moved to the left. When moved to the right the lathe isengaged. Center position is neutral.B. Speed Dial - The speed dial controls the motor ...

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    A. Oil Fill Port - Located directly above the motor, it holds 8-10 oz of 30 weight oil.Remove the screw to add oil as necessary.B. Belt Tension - Moves the motor pulley up and down releasing tension on the belts.Pull the lever down to loosen the tension on the belt and push the lever up to addten...

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    Pulley BoxThe pulley box houses the drive pulleys, gears and power components. L-1. Motor Pulley - A three-step pulley attached to the shaft of the motor.L-2. Speed Reduction Pulley - Sits between the motor and spindle pulley and is usedfor low speed operations when increased torque is desired.L-...

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    L-10. Leadscrew Clutch- Is designed to slip to reduce damage to the machineapron if the carriage is accidentally run into the head of the machine.Carriage AssemblyThe carriage assembly consists of:• Crossslide table• Carriage; the lower portion of the table that rides on the bed ways,• Apro...

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    B. Cross-Slide Handwheel - This handwheel moves the table toward and away fromthe operator along the Y-Axis. Rotating the handwheel clockwise moves the table awayfrom the operator while moving it counterclockwise moves the table toward the operator.C. Longitudinal Handwheel - This handwheel is lo...

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    I. Carriage Gib Adjustment Screws - These screws press a small metal plate (the gib)to the ways of the bed, increasing or decreasing the tension when moving the cross-slideassembly. (Figure 4.9)J. Carriage Lock (Y-Axis) - is an M8 screw. Turning the screw clockwise will prohibitmovement of the c...

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    M. Carriage Gib Adjustments Screws - when screwed in, these screws press a smallmetal plate (the gib) to the ways of the bed, increasing or decreasing the tension whenmoving the carriage assembly along the bed ways.Carriage Assembly-Compound Angle ToolpostThe compound angle toolpost is bolted to...

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    B. Turret Bolts - These bolts secure your tooling to the turret. C. 4 Position Turret - The turret holds up to 1/2” tooling. The turret can support up to4 tools. D. Compound Slide - The compound slide moves the tooling in towards and away fromthe workpiece. E. Floating Dial - The floating dial...

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    A. Tailstock Body - This is the main casting of the tailstock.B. Off-Setting Lock Bolts -These bolts lock the top base of gthe tailstock and preventit from moving off center. C. Tailstock Handwheel -This handwheel moves the tailstock barrel in and out of thetailstock body.D. Tailstock Lock -Thi...

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    Over viewThe Quick-Start Manual you received before delivery of your Smithy machineprovides detailed instructions for mounting and locating your machine. Pleasecomplete those instructions if you have not already done so. As you unpack, itis a good idea to inventory the parts. (See chapter 3 for a...

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    Mill Spindle CoverThe mill spindle cover slides over the flange on the top of the millhead.! NOTICE !Arbor PlugInstall the plug setscrew (S12898 into the tailstock arbor before inserting thearbor into the tailstock. A plug is installed in the tailstock arbor (the MT3 to JT33arbor, part number C30...

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    HandlesInstall any handles or handwheels that have been removed for shipping. Handles can behand installed and tightened with a flat-head screwdriver. Remove and reverse thetailstock handwheel.Cleaning & Lubricating Your MachineSmithy machines are shipped with a light protective grease coatin...

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    Gearbox Open the gearbox door. Lightly grease the gears with a good quality molybdenum orlithium grease or motorcycle-chain lubricant. Check the oil sight glass under the chuck. If necessary, add oil until the sight glass is halffull. The oil-fill plug is at the back of the headstock above the m...

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    WaysRun the carriage as far to the left as possible. Put a few drops of oil on the ways. Runthe carriage to the extreme right and repeat. Carriage Assembly-SaddleLubricate the four oil buttons of the cross-slide table There are two buttons on both the right (tailstock) side and left side (head st...

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    Carriage Assembly-Cross-Slide TableThere is one button on each side of the cross slide for the cross-slide ways. Compound Angle ToolpostOil the two buttons on the top of the compound rest.Figure 5.9 Carriage Assembly Cross Slide Table PointsFigure 5.10 Oil the Compound Angle Toolpost at its oil p...

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    Cross-Slide ScrewOil the cross-slide screw. The first oil button is located on the apron next to the cross-slide dial and the other is found on the top of the cross-slide table.Oil the buttons between the cross-slide and longitudinal-feed handwheels (at right). LeadscrewOil the support for the ri...

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    Quick Change Gear BoxUse a spray can of lithium grease or motorcycle-chain lubricant. Spray inside thequick-change gearbox through the slot for the powerfeed (1-7) selector.Tailstock BarrelOil the two buttons on top of the tailstock.Mill/Drill Clutch, Fine FeedOil the button on top of the mill/dr...

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    Adjusting GibsThe Granite 1300 models have a series of straight gibs. The gibs are found on thecarriage, the cross-slide table, compound angle toolpost and the tailstock. These gibsshould be adjusted periodically to maintain accuracy and smooth operation.Carriage Assembly-SaddleAdjust the gibs on...

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    Step 6: Once slight resistance is felt, hold the gib adjustment screw in position andtighten the jam nut.Step 7: Repeat steps 5 and 6 with the other inner screw and then with the two outerscrews.Adjusting the Gibs on the Carriage Assembly -Cross-Slide TableAdjust the gibs on the cross-slide tab...

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    Adjusting the Gibs on the Compound AngleToolpostAdjust the gibs on the compound-angle toolpost using the procedure below.Step 1: Loosen the jam nuts on the side of the compound-angle toolpost with the6 inch adjustable wrench.Step 2: Back out the gib adjustment screws out two turns .Step 3: Using...

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    Adjusting the Gibs on the TailstockAdjust the gibs on the tailstock using the procedure below. Step 1: Unlock the tailstock.Step 2: Remove the outer setscrews with the 4 mm Allen wrench provided.Step 3: Using the 4 mm Allen wrench, tighten each gib adjustment screw until ittouches the gib lightl...

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    Adjusting BacklashBacklash is lost motion in the screw. The user will notice an initial small movement in thehandwheel before the screw responds. The procedures in this section will help minimizebacklash.Adjusting Backlash from the Cross-Slide ScrewBefore making any adjustments to the cross-feed ...

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    Cross-Slide Screw to Brass Nut & Nut to SaddleIf there is still excess backlash after the previous adjustment, the backlash is eitherbetween the cross-slide screw and the brass nut or between the brass nut and thesaddle. The following procedure covers both adjustments.Step 1: Remove the rear ...

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    Step 5: Reinstall the rear support and tighten the locking bolt for the brass nut.Step 6: Recheck the backlash on the cross-slide.Adjusting Backlash from the LongitudinalLeadscrewExcessive backlash in the longitudinal feed can come from two places. • The fit of the longitudinal feed screw to...

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    Step 2: Unscrew the handwheel from the end of the feed screw.Step 3: Using a punch and a small hammer, tighten the spanner nut about one-eighthof a turn and recheck the backlash in the leadscrew.Step 4: If backlash is acceptable, replace the handwheel, washer, and retaining screw.If more adjust...

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    Step 3: Use a small spanner wrench or a punch with a small mallet to rotate thebearing supports one at a time. The support bearings are mounted slightly off center inthese housings and rotation of the housings will raise or lower the worm gear downtowards the pinion gear. The bearing support on t...

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    • Another section that is not as wide and is not keyed to the shaft. It is held in place on the shaft via a locking nut and can be repositioned as desired.The narrow section can be offset from the wide section to give the effect of a gear withthicker teeth. This in turn will give a tighter too...

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    Step 7: With the quill still locked, move the coarse feed handle and check for areduction in backlash.Step 8: Bend the locking tab back into one of the slots in the spanner nut.Adjusting Drive Belt TensionAdjust the belt tension before using your machine and recheck it periodically.Adjusting Mill...

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    Becoming Familiar with Operating Your SmithyGranite Once the machine has been lubricated and adjusted and before you begin working, taketime to become familiar with the operation of your Smithy machine.Although all Smithy machines are run at the factory, it is wise to put your machinethrough a br...

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    Running in the LathePerform these operations to familiarize yourself with lathe operation.Step 1: Position the carriage and cross-slide table to a mid-range position.Step 2: Keep the lathe/mill clutch in the lathe position from the previous steps.Step 3: Position the powerfeed function selector t...

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    Running in the Mill/DrillPerform these operations to familiarize yourself with mill and drill press operation.Step 1: Position the carriage and cross-slide table to a mid-range position.Step 2: Engage the mill with the lathe/mill clutch.Step 3: Position the powerfeed function selector to mill ope...

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    Over viewThis section contains information on installing tooling for your lathe and mill.Setting-up Lathe ToolingThere are three main areas to set-up tooling when you are using the latheportion of your Granite 1300 series tool:•Lathe Spindle•Compound Angle Toolpost•TailstockLathe SpindleAn...

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    Removing D1-4 Camlock Tooling Fr om theLathe Spindle Step 1: Protect the ways by placing a wooden board or protective materialsuch as styrofoam on the ways below the lathe spindle.Step 2: Insert the chuck key provided into each of the three camlock socketson the spindle nose and turn counterclock...

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    socket on the spindle flange and rotate each camlock clockwise to the lockedposition. The indicator hashmark on each camlock socket should be somewherebetween the 5 and 6 o’clock position.If the desired rotation on any cam lock cannot be obtained, the mounting studsmay need to be adjusted. (See...

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    Setting-up Tooling in the Mill/Drill SpindleThis section will explain tool mounting in the mill/drill spindle.The mill spindle of the Granite 1300 series machines is an R-8 (Bridgeport®)standard. It features a straight shank with a flared nose for centering the tooland a keyway for alignment.Ali...

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    Step 3: Use a wrench to apply torque to the drawbar. This will draw thefixture firmly into the spindle.Step 4: Reinstall the spindle cap when the fixture/tooling is in place.Removing R-8 Tooling fr om the DrawbarUse the procedure below to remove tooling using the drawbar method:Step 1: Stabilize...

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    A common catch box consists of a cardboard or wooden box eight to teninches square with four- to six-inch high sides. Rags loosely thrown in thebottom of the box provide padding for the tool to land in when the drawbar isremoved from the fixture and the fixture falls from the mill spindle.NOTES:6...

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    Over viewThis section contains information on manual machine operations that arespecific to the Granite 1300 series machines. General machining practices canbe found in one of the many machining reference books that Smithy carriessuch as the Home Machinist Handbook, item 10-005. Appendix A includ...

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    • The right position is marked with a lathe-chuck icon. This position engages the lathe spindle for all lathe operations.• The left position is marked with a mill-spindle icon. This position engages the mill spindle for all mill operationsManual FeedingFeeding is the act of moving the cut...

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    Coarse Feed OperationPull the fine-feed clutch knob outward while slowly rotating the drill presshandles back and forth. Once the knob is pulled out, the drill press handles canbe used for coarse feeding by rotating the handles clockwise to feed into theworkpiece and counter clockwise to feed awa...

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    operator or counterclockwise to move it toward the operator.The dial iscalibrated in 0.001”. One rotation moves the table 0.10”.Carriage AssemblyThe carriage assembly (crossfeed table and saddle) is moved left and right bythe longitudinal handwheel (coarse feed) on the front of the apron or t...

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    Before using the longitudinal fine feed handwheel disengage Selector Lever (1-7) and the Selector Lever (I-III). Move the half-nut engagement lever to theengaged position (handle pointing down). Turn the leadscrew handwheel tofeed the carriage assembly left or right. The movement is measured b...

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    Over viewBefore using the more advance features of your Granite 1300 Series Lathe-Mill-Drill, it is important to have a basic understanding of feeds and speeds. Thissection contains information on how to set the speed and feeds rates for yourmachine. We encourage you to learn and understand as m...

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    Setting the Spindle Rotational SpeedOnce you have determined the proper speed and feed rate for the material thatyou are cutting and the type of cutter that you will be using, you will need tosetup your machine to cut within the range of the selected speeds and feedrates. Setting the spindle s...

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    Step 3: Set up the belts as necessary to obtain the desired speed range. Thevariable speed selector dial can be used to adjust the speed within the range.High Range-Speed Set-upUse the procedure below to set up for high speed (1500 to 3000 RPM)operations.Step 1: Release the belt tensioned at the...

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    Low Range-Speed Set-upFor low-speeds (optional on early machines), you must convert to a doubledrive belt configuration. Use the procedure below to set up for low speed (400RPM or less) operations.Step 1: Release the belt tensioned at the motor by rotating the tension leverdown.Step 2: Remove the...

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    Step 7: Tension the belts by rotating the tension lever on the motor all theway up. Tighten the bolt on the gear quadrant to lock the quadrant and thereduction pulley in place.Step 8: Reassemble the lathe/mill selector arm and tighten the cap screw tosecure the selector shaft in place.Feed Char ...

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    Below the symbol is a representation of the feed gears, A, B, C, and D on thegear quadrant. These gears are located inside the pulley box. Immediately tothe right of the gear symbols are the numbers 1 through 7, which refer to theposition of the powerfeed selection lever (1-7) on the feed transmi...

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    Below the gear formula is a repetition of the “Do not change selectorhandle positions while the machine is running” symbol. The Header Row contains a number of symbols explained below:This symbol refers to inch thread pitches (threads per inch).The “N” represents the distance the carria...

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    Section four and five of the chart list the metric thread pitches when using thefollowing gear set-up:Section 4Section 5A=33A=66B=80B=64C=63C=63D=60D=60Changing gears will be covered in the Threading chapter.Sample SettingsHere are a couple of examples to illustrate the speed/feed chart. Example ...

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    NOTES:! NOTICE !The feed chart on your machine is in millimetersper spindle revolution. Please see Appendix B forfeed rates based in inches per spindle revolution.8: Speeds & Feeds8-9Or Visit www.smithy.com

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    Over viewThe previous section of this manual explained speeds and feed and how theyare determined. This section will give you step by step instructions for usingthe powerfeed on your Granite 1300 series lathe-mill-drill.General machining practices can be found in the one of the many machiningref...

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    The powerfeed operates in either the x- or y-axis. It incorporates the quickchange gear box by engaging the Selector Lever (1-7) and Selector Lever (I-III)as well as the carriage gearing by engaging the powerfeed lever into theproper position.The two-position powerfeed function selector mustbe i...

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    The powerfeed engagement lever is located on the upper right side of the apronand has a three-position gate with neutral, longitudinal (x axis) and cross feed(y axis). The powerfeed engagement lever can be operated while the machineis running.Engagement of the x axis is achieved by moving the lev...

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    The Jog KnobThe chrome knurled knob located on the upper right side of the gearbox can be used tomanually turn the gear shafts and allow the straight cut gears to mesh easier whenmoving the powerfeed selector levers.Step-By-Step Lathe Power feedingStep 1: Determine the proper speed and feed rate ...

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    Step 5: Position the selector (I-III) into the position listed on the chart for thedesired feed rate.Step 6: Set the recommeded speed for the work stock material and cutter thatyou are using. (See chapter 8 for setting speeds.)Step 7: Before running the powerfeed do a “dry run” by manually ...

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    Step 6: Set the recommended speed for the work stock material and cutterthat you are using. (See chapter 8 for setting speeds.)Step 7: Before running the powerfeed do a “dry run” by manually feeding thecross-slide table and carriage assembly the distance that you will be feedingyour projec...

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    Over viewThis section of your manual covers threading operations on your Granite 1300series lathe-mill-drill. This section will build the information presented inchapters 8 and 9. If you have not read these sections, please do so beforecontinuing.Leadscr ew Safety Clutch AdjustmentBefore beginin...

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    If slippage occurs during your threading operation adjust the safety clutch byturning each setscrew one at a time a half turn each time untill the clutch issolid and no slippage occurs. Do not bottom the screws completely of the clucthwill not work.An approximate initial setting is when the set s...

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    Step 3: If changing the gear set-up is necessary to achieve the desired threadpitch, follow the procedure under the title “Changing Gears” in the next section.Changing GearsStep 1: The A gear is secured with a bolt and washer assembly and thelocation is fixed. To remove the gear remove the b...

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    Step 5: Loosen the hex head bolt. This allows the assembly to drop down.Step 6: Position the installed B/C gear unit to mesh with the D gear.Step 6: Rotate the gear assembly until the B gear meshes with the A gear.Lock the assembly in place by tightening the hex head bolt.The hex head bolt also t...

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    Step 9: When you reach the end of the first cut, lift up on the half-nutengagement lever, back the cutter out using the CATP feed and return thecutter to the starting point.Step 10: Feed the cutter in the desired amount for the next cut, wait for thesame number as before to come up on the dial an...

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    Cutting Metric Thr eadsStep 1: Select the desired thread pitch that you wish to cut from the chartlocated on the headstock of the Granite 1300 series lathe-mill-drill.Step 2: Engage selector levers (1-7) and selector lever (I-III). Remember, you can use the jog knob located on the rightside of t...

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    Over viewTo keep your Smithy Granite machine running at optimum performance, followthis basic maintenance schedule:Befor e Each Use1. Make sure your work area is clean and free of all obstructions.2. Clear machine cross-slide table, bed ways and tool post of all chips builtup from your previous ...

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    10 Hours (Daily)1. Clean chip build up from machine.2. Brush chips off the longitudinal feed screw.3. Check the oil site gauge under the lathe chuck and add oil if the level is below thehalf-way point.4. Oil all oil buttons25 Hours (Monthly)1. Check the oil site gauge under the lathe chuck and ad...

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    Powerfeed and Thread Cutting1. Powerfeed does not move carriageCause Solution• Carriage locked• Unlock carriage• Speed selector not engaged• Select speed I or II or III, engagedrive selector• Sheared pin• Replace pin• Gears not meshing or teeth missing• Check gears and adjust• ...

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    Carriage/Milling Table1. Table won't moveCauseSolution• Table locks engaged• Loosen locks• Gibs too tight• Loosen gibs2. Horizontal and vertical movement in cross-slide tableCause Solution• Carriage gib improperly adjusted• Adjust carriage gib• Table gib improperly adjusted• Adjus...

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    Lathe TurningCause Solution• Tool dull• Sharpen or replace tool• Tool not ground properly• Regrind tool• Tool at wrong angle• Correct tool position • Tools not held tightly• Tighten toolholder• Wrong cutter for material• Use correct cutter• Cutting speed incorrect• Increas...

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    6. Too much backlash in the compoundCauseSolution• Loose spanner nuts• Tighten spanner nuts• Worn Nut• Replace nut7. Machine slings oil from behind the chuck or in belt boxCauseSolution• Oil reservior overfilled• Check oil lever• Worn oil seal • Replace felt in sealMilling1. Tool...

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    • Cutting too fast• Reduce speeed• Incorrect bit• Use correct bits• No pilot hole• Drill small pilot hole2. Entrance hole is out of roundCauseSolution• Bit dull• Use sharp bit• Incorrect drill bit• Use correct drill bit3. Bit turns erratically or stopsCauseSolution• Bit fed ...

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    MotorHow to check a MotorGet a car battery and attach the two wires coming from the motor to the terminals of thebattery. If the motor runs, the motor is okay, if not it needs to be replaced. Uncscrew brush caps and inspect the brush carbon, spring and wire. If damaged or wornout replace it.Chuck...

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    4. Inspect the mating surfaces on the end of the spindle and the back of the chuck forburrs or foreign matter. Clean and deburr these areas as necessary.Installing and Adjusting the chuck1. Make sure that the cams are aligned in the unlocked position and slide the chuckonto the spindle.2. Turn ea...

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    9. Install the chuck and check the cam rotation. Repeat as necessary.Since there are three studs and cam mounts on the chuck, there are three possibleposition that the chuck may be mounted. You will find that one of these positions will beslightly more accurate than the others. Try the chuck in a...

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    Half nut to screw backlashWorn threads on the half nut can cause excessive backlash in the longitudinal direction.Half nuts are made of brass and do wear out over a period of time. The only fix for aworn half nut is to replace the worn nut with a new one. Crossfeed Backlash AdjustmentExcessive ba...

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    handle. When the screw starts to get hard to turn, loosen the nut slightly so the screwturns free.3. Hold the inner nut in place and tighten the outer nut against it to lock the nuts inposition.4. Recheck the backlash.Crossfeed Screw to Brass Nut & Nut to Carriage (Locking Bolt)If there is st...

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    4. Slowly tighten the four adjusting screws on the brass nut, one at a time, until a slightdrag is felt while turning the crossfeed handle.5. Install the rear crossfeed support and tighten the locking bolt for the brass nut.6. Recheck the backlash on the crossfeed.If you find that the four adjust...

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    Note: If you have an older Granite model, the end of the lead screw may not be drilledand tapped. This is a very simple process. You will need a 5/16 x 24 tap, a 17/64 or a “I”drill bit, and an electric hand drill. Set up your machine on the slow speed pulley, full RPM,with leadscrew turning ...

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    Granite 1324 Series MachineGeneral SpecificationsGeneral Dimension: 39” height X 46” length X 22-1/2” widthMachine Weight: Shipping 770 lbs, Machine 661 lbsCrate Size: 49-1/2” X 22-3/4” X 44”Footprint (static): 48” X 36”Footprint (operating): 72-1/2” X 45-1/4”T-Slot Size: 7/16...

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    Mill SpecificationsColumn Diameter: 3-3/16”Dial Calibration Drill-Coarse Feed: 0.05”Dial Calibration Mill-Fine Feed: 0.001” Drawbars Size (included): 7/16”Drill Chuck Size (included): 5/8”Drill Chuck Arbor Size (included): R-8/JT3Head Rotation: 360 DegreesQuill Diameter:2-3/4”Quill Tr...

  • Page 101

    Granite 1340 Series MachineGeneral SpecificationsGeneral Dimention: 39” height X 62” length X 22-1/2” widthMachine Weight: Shipping 910 lbs, Machine 728 lbsCrate Size: 64-1/2” X 22-3/4” X 44”Footprint (static): 64” X 36”Footprint (operating): 88-1/2” X 45-1/4”T-Slot Size: 7/16...

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    Drill Chuck Size (included): GN Classic:1/2”GN-MAX & GN-IMX: 5/8”Drill Chuck Arbor Size (included): R-8/JT3Head Rotation: 360 DegreesQuill Diameter: 2-3/4”Quill Travel: 4-7/8”Spindle Taper: R-8Spindle to Table Distance (min-max): GN Classic: 4” to 13-1/3” GN-MAX & GN-IMX: ...

  • Page 103

    How to Determine Speeds and Feeds for LatheTurning (machine, materials, and tools)The lathe rotates a workpiece against a cutting edge. With its versatility and numerousattachments, accessories, and cutting tools, it can do almost any machining operation.The modern lathe offers the following:• ...

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    The lathe spindle holding the workpiece revolves at a selected speed (revolution perminute, or rpm) according to the type and size of the workpiece. The leadscrew, whichruns the length of the lathe bed, also revolves at the desired rpm. There is a definite andchangeable ration between spindle and...

  • Page 105

    Cutting Speed and Feeds for High Speed Steel ToolsThe energy expended at the lathe's cutting point converts largely into heat, and becausethe energy expended is great, the heat is intense. Before today's HSS, carbide, andceramic tool, this heat created a serious machining problem. Machining could...

  • Page 106

    In everyday lathe operations like thread cutting and knurling, always use a cutting oil orother lubricant. On such work, especially if the cut is light and lathe speed low, dippinga brush in oil occationally and holding it against the workpiece will provide sufficientlubrication. For continuous, ...

  • Page 107

    How to Determine Speeds and Feeds for Milling(machine, materials, and tools)SpeedsMilling cutting rates vary according to the machinability of the material being cut; whethercutting fluid is used and, if so, what kind; the type, size, and material of the cutter andthe coarseness of its teeth; and...

  • Page 108

    Up MillingIn up milling, forces on the workpiece tend to pull it out of the vise or fixture holding it,so fasten it securely. These forces also push the workpiece away from the cutter, whicheliminates backlash. Up milling is advised for milling cast iron, softer steels, and otherductile materials...

  • Page 109

    Ready-to-grind bits and blades are of specially selected HSS, cut to length and properlyheat-treated. They are fine tools in the rough and generally superior to HSS shapes soldby the pound.In grinding HSS cutter bits, you have five major goals:• A strong, keen cutting edge or point• The prope...

  • Page 110

    Materials other than Steel As pointed out earlier,when grinding HSS cutters, we determine cutting angles primarilyby strength requirements, not keenness requirements. Angles and rakes for generalindustrial shops use are established. In machining steel, the softer the steel, the keenerthe angle of...

  • Page 111

    Bits for Turning and Machining BrassBrass tends to pull or drag when machined. It's best to machine it on dead center withthe top rake in the horizontal plane of the lathe centers. Softer than steel, brass needsless support for the cutting edge. Brass cutters require an almost flat top angle and ...

  • Page 112

    Acme or Other Special ThreadThread gauge are available for all standard threads. Before grinding such cutters,ascertain the correct pitch angle of the particular thread profile. For example, the pitchof an acme thread is 29° to a side, and the toolpoint is ground back square to an exactthread ...

  • Page 113

    When to Use Different Kind of EndmillsChoose milling cutters for the type of cut, the number of parts, and the material. Rakeangles depend on both cutter and work material. Clearance angles range from 3° to 6°for hard or tough materials to 6° to 12° for soft materials.To determine the number ...

  • Page 114

    • Geometry-forming endmills form particular geometries. They include ball endmills, roughing endmills, dovetail endmills, T-slot cutters, keyseat cutters, and shell endmills.• Ball endmills cut slots or fillets with a radius bottom, round out pockets andbottoms of holes, and do diesinking and...

  • Page 115

    Side Milling CuttersSimilar to plain milling cutters, side milling cutters also have teeth on one or both sides.The teeth on the periphery do most of the cutting; those on the sides finish the side ofthe cut to size. They cut grooves or slots and often work with other cutters to millspecial shape...

  • Page 116

    Form-relieved Cutters• Formed-tooth cutters machine surfaces with curved outlines. You can sharpen them without changing the tooth outline. Concave cutters mill convex half-circles; Convex cutters cut concave surfaces.• Corner-rounding cutters round outside corners. Gear cutters cut gear t...

  • Page 117

    For most work, the beginner will use the Unified National Standard, which is a V-formthread slightly flat on top and at the root. Screw threads are usually referred to by pitchnumbers, such as 18 or 24, meaning 18 or 24 threads per inch (tpi). The Smithy GraniteSeries machine cuts standard thread...

  • Page 118

    Cutting Right-hand ThreadsNow you are ready to cut right-hand threads. First, advance the tool so it just touchesthe workpiece and turn the compound calibration to zero. Then, using the compoundfeed, feed in the tool 0.002”. Turn on the motor, engage the power feed (lever located onthe lower ri...

  • Page 119

    Cutting Left-hand Threads Cut left-hand threads exactly as you cut right-hand threads, except feed the carriagetoward the tailstock instead of away from it. Or the spindle rotation is reversed. Reversethe cutter clearance and grind the cutters back with a clearance angle on the left side.swing th...

  • Page 120

    Because the feed of successive cuts is toward, not away from the operator, thethread-cutting set is reversed. Also, you must take lighter cuts because of the cutter'sextension from the toolpost. Take an extra finishing cut without changing the setting ofthe compound rest.Cutting Special-form Inte...

  • Page 121

    Appendix BInch Feed RatesInch threadsare defined asthe number ofthreads in one inch.Metric threads aredefined as the dis-tance between twoadjacent crests.METRICTHREADSINCHTHREADS”Longitudinal Feed Cross FeedFEEDRATES = I II III I II III0.0197” 0.0098” 0.0049” 0.0062” 0.0031” 0.0015”...

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    Machine Warranty30 Day Trial OfferTry a Smithy for 30 days. If, for any reason within that time, you decide to return yourSmithy, just call our Customer Service department at 1-800-476-4849. We will help youarrange shipping back to us. When we receive the machine back, we’ll refund your fullpur...

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    We do not warrant or represent that the merchandise complies with the provisions of anylaw or acts unless Smithy Company so warrants. In no event shall Smithy's liability underthis warranty exceed the purchase price paid for the product. Legal actions broughtagainst Smithy Co. shall be tried in...

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