Manuals / Southbend / Power Tools / Lathe

Southbend SB S E R V I C E, Pedal Lever Brake Belt Band Pedal Stop, Brake pedal travel adjustment

Models: SB

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Pedal Lever

	S E R V I C E
For Machines Mfg. Since 5/11	S E R V I C E	13" Heavy 13® Gearhead Lathe

5.Remove the pedal stop shown in Figure 125.

Pedal Lever

Brake Belt

Band

Pedal Stop

Figure 125. Brake belt adjustment components.

6.Move the brake band to the right one hole, and re-install the pedal stop, tightening the cap screw until it is just snug.

Note: If installing a new brake band, install the cap screw so there is one hole to the left for future brake adjustment.

7.Firmly push the pedal lever to the right until it stops and the brake band is fully clamped around the brake hub.

8.Tap the pedal stop into position so there is approximately a 25mm gap between the pedal lever and the stop (see Figure 126), then firmly tighten the pedal stop cap screw.

Pedal				Pedal
Stop				Lever

Figure 126. Brake pedal travel adjustment.

9.Locate the brake switch shown in Figure 127.

Brake

Switch

Pedal

Cam

Figure 127. Brake switch and pedal cam.

10.Push the pedal lever down to verify that the cam lobe pushes the brake switch plunger in. When pushed in, the switch should click.

—If the switch does not click, loosen the switch mounting screws, push the brake pedal all the way down, and move the switch closer to the lobe until it clicks. Secure the switch in place at this location.

Note: In the released position, there should be an approximate 3mm gap between the switch plunger and the cam lobe.

11.Re-install the motor access panel, connect the lathe to power, then test the brake pedal. If you are not satisfied with the brake performance, repeat this procedure until you are.

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Southbend SB owner manual S E R V I C E, Pedal Lever Brake Belt Band Pedal Stop, Brake belt adjustment components

Contents

MODEL SB1049 13 X MODEL SB1050 13 X 13 HEAVY 13 GEARHEAD LATHEOWNERS MANUAL January, 2012 by South Bend Lathe CoCustomer Service UpdatesScope of Manual Manual FeedbackSAFETY Table of ContentsINTRODUCTION PREPARATIONMAINTENANCE ACCESSORIESSERVICE TROUBLESHOOTINGAbout This Machine FeaturesForeword CapabilitiesGeneral Identiﬁcation Controls Components Master Power SwitchHeadstock I N T R O D U C T I O NControl Panel CarriageI N T R O D U C T I O N Tailstock Safety Foot BrakeEnd Gears I N T R O D U C T I O NModel Number MODEL SB1049 & SB1050 13 HEAVY 13 GEARHEAD LATHESSB1049 SB1050Model Number I N T R O D U C T I O NSB1049 SB1050I N T R O D U C T I O N DimensionsModel Number SB1049Model Number I N T R O D U C T I O NSB1049 SB1050Basic Machine Safety Understanding Risks of MachineryS A F E T Y S A F E T Y S A F E T Y Additional Metal Lathe SafetyS A F E T Y Additional Chuck SafetyPower Supply Requirements on the next page for details For Power ConnectionFor Cleaning & Assembly Preparation OverviewSingle-Phase Power Supply RequirementsS Type, 3-Wire, 12 AWG, 300 VAC AvailabilityExtension Cords Grounding RequirementsP R E P A R A T I O N GROUNDED L6-30 LOCKING RECEPTACLE Grounding Prong is Hooked L6-30Unpacking Pre-Installed Not ShownInventory Main Inventory 1 FigureBefore cleaning, gather the following Cleaning & ProtectingBasic steps for removing rust preventative P R E P A R A T I O NWeight Load Electrical InstallationLocation Physical EnvironmentLifting & Moving To lift and move the latheP R E P A R A T I O N Leveling & Mounting LevelingP R E P A R A T I O N Lubricating Lathe AssemblyBolting to Concrete Floors P R E P A R A T I O NTo connect the power cord to the lathe Power ConnectionAdding Coolant To PlugTest Run To test run your machineP R E P A R A T I O N Neutral Feed Range LeverHigh Spindle SpeedCarriage to Brake & Switch on Page 78 to makeFeed Control Lever Disengaged Halfnut LeverP R E P A R A T I O N Factory adjustments that should be veriﬁed Recommended AdjustmentsSpindle Break-In To perform the spindle break-inOperation Overview O P E R A T I O NTo complete a typical operation, the operator does the following Installation & Removal Devices Chuck & Faceplate MountingO P E R A T I O N To install the chuck Chuck InstallationINCORRECT O P E R A T I O NRegistration Marks Chuck RemovalTo remove the chuck O P E R A T I O N4-Jaw Chuck Scroll Chuck ClampingMounting Workpiece O P E R A T I O NO P E R A T I O N FaceplateFigure 35. 4-jaw tightening sequence Figure 36. Example photo of non-cylindrical workpieceTailstock Using QuillPositioning Tailstock To mount a non-concentric workpiece to the faceplateInstalling Tooling To install tooling in the tailstockO P E R A T I O N Removing Tooling Offsetting TailstockTo offset the tailstock Tools NeededItems Needed Aligning Tailstock to Spindle CenterlineTo align the tailstock to the spindle centerline O P E R A T I O NCenters Dead CentersO P E R A T I O N Mounting Dead Center in Spindle Live CentersRemoving Center from Spindle Mounting Center in TailstockMounting Workpiece Between Centers Removing Center from TailstockO P E R A T I O N Drift Key Slot Figure 51. Drift key slot in the side of the quillTo install and use the steady rest Steady RestO P E R A T I O N Carriage & Slide Locks Follow RestO P E R A T I O N Cap Screws Figure 55% Follow rest attachmentTo install a tool in the tool post Installing ToolCompound Rest Four-Way Tool PostTo align the cutting tool with the tailstock Aligning Cutting Tool with Spindle Centerlinecenter Top ViewMicrometer Stop Adjustable Feed StopTo set the micrometer stop O P E R A T I O NSpindle Speed Manual FeedCarriage Handwheel Cross Slide HandwheelSetting Spindle Speed of 200 RPM Setting Spindle Speed350 RPM or lower when using the high H gearbox range Conﬁguration ExamplesSetting Spindle Speed of 2000 RPM Power Feedto HIGH 2000 RPMPower Feed Controls D. Quick-change Gearbox Feed LeversO P E R A T I O N Setting Power Feed Rate Setting Power Feed Rate of 0.18mm/revO P E R A T I O N Standard End Gear Conﬁguration End GearsO P E R A T I O N 18 LCS8WConﬁguring End Gears Alternate ConﬁgurationTo conﬁgure the end gears Tools NeededThreading Setting Metric Thread Pitch ofHeadstock Threading Controls O P E R A T I O NThread Dial Apron Threading ControlsCross Slide DisengagedTPI Divisible By Thread Dial ChartEven TPI Not Divisible By Odd Numbered TPI1⁄4 or 3⁄4 Fractional TPI Chip Drawer27⁄8 TPI O P E R A T I O NTo use the coolant system on your lathe Coolant SystemBIOLOGICAL & POISON HAZARD O P E R A T I O NA C C E S S O R I E S AccessoriesSB1279-10 Pc. Precision 5-C Collet Set D1-5 Back Plates SB1397-61⁄4 SB1399-81⁄4 SB1401-101⁄2SB1238-High Performance MT#3 Live Center Keyless Integral Chucks SB1379-MT #3 1⁄2 SB1380-MT #3 5⁄8ss 7ATERPROOF DESIGN SB1245-MT#2 Bull Nose CenterSB1251-Machinists Oak Tool Box SB1365-Way OilSB1282-High Performance MT#3 Live Center Set A C C E S S O R I E SAlways disconnect power Maintenance Scheduleperforming maintenance M A I N T E N A N C EAnnual Service South Bend Lathe Co. Lathe Monthly Maintenance Chartposal, and safety Service ItemChecking Oil Level LubricationAdding Oil Changing OilApron Quick-Change GearboxDraining Oil Draining Oil & Flushing ReservoirLongitudinal Leadscrew One-Shot OilerM A I N T E N A N C E Drain Plug Figure 104. Location of apron drain plugM A I N T E N A N C E Ball Oilers & Oil CupA B C D EF Figure 107. Tailstock ball oilersLubricating Handling & CareEnd Gears M A I N T E N A N C EHazards Coolant System Servicefor proper disposal M A I N T E N A N C EChanging Coolant Adding FluidItems Needed To change the coolantMachine Storage To prepare the lathe for storageM A I N T E N A N C E Compound Rest Backlash AdjustmentCross Slide S E R V I C EGib Adjustment Leadscrew End Play AdjustmentTo remove leadscrew end play S E R V I C ES E R V I C E To adjust the V-belts Half Nut AdjustmentTo adjust the half nut V-BeltsTo adjust the brake and brake switch Brake & SwitchS E R V I C E Tools NeededFigure 126. Brake pedal travel adjustment Figure 125. Brake belt adjustment componentsBrake Switch Pedal Cam Figure 127. Brake switch and pedal cam S E R V I C ETo replace the shear pin Leadscrew Shear Pin ReplacementS E R V I C E Tools NeededS E R V I C E Shear Pin Figure 132. New shear pin installed in boreInner Bore Outer Bore Figure 131. Shear pin bores aligned Rotate Washer Slot Figure 133. Shroud washer positioningGap Removal Gap Insert Removal & InstallationS E R V I C E Tools NeededS E R V I C E Gap InstallationPossible Solution SymptomPossible Cause Machinerys Handbook or a speeds and feedsPossible Solution SymptomPossible Cause PagePossible Solution SymptomPossible Cause Workpiece isElectrical Safety Instructions E L E C T R I C A LWIRING DIAGRAM COLOR KEY Power Supply Connection Wiring OverviewChuck Guard Limit Switch Page Brake Pedal Micro Switch Page Page Work Lamp Page Spindle Switches PageE L E C T R I C A L Component Location IndexP age P ageTo Chuck Guard Micro Switch, Page Electrical Cabinet WiringTo Power Supply Connection, Page POWERElectrical Box E L E C T R I C A LFigure 138. Electrical box Spindle Motor Coolant Pump Motor WiringE L E C T R I C A L SpindleSpindle Switches Control Panel WiringFigure 140. Spindle rotation switch location E L E C T R I C A L220VAC L6-30 Plug as recommended Additional Component WiringPower Connection Master Power SwitchP A R T S Headstock CoverCAP SCREW M6-1 X TOP COVER GASKETControls HeadstockP A R For Machines Mfg. Since 5/11P A R T S Headstock Controls Parts ListP A R T S Headstock Internal GearsCOMBO GEAR ASSEMBLY 22T/76T Headstock Internal Gears Parts ListCOMBO GEAR ASSEMBLY 30T/38T COMBO GEAR ASSEMBLY 45T/52TP A R T S Headstock Transfer GearsSTEEL FLUTED RIVET 2 X 5MM COMBO GEAR ASSY 21T/42TGears GearboxP A R T S P A R T S Gearbox Gears Parts ListNEEDLE ROLLER BEARING TAF202820 EXT RETAINING RING 22MMR T S Gearbox ControlsGearbox Controls Parts List P A R T SLOWER MIDDLE PARTITION SUPPORT P A R T S Apron Front ViewP A R T S Apron Front View Parts ListCOMPRESSION SPRING 6 X COMPRESSION SPRING 4 XP A R T S Apron Rear ViewP A R T S Apron Rear View Parts ListTHRUST BEARING NTB/AS-2542 NEEDLE ROLLER BEARING NK29/30P A R T S Compound Rest & Tool PostP A R T S Saddle Top ViewSaddle Top View Parts List P A R T STHRUST BEARING NTB/AS2-1730 P A R T S Saddle Bottom ViewSTRAIGHT ADAPTER 1/8PT X 4MM STRAIGHT ADAPTER 1/8 X 6MMDial Indicator Micrometer StopP A R T S Bed & Shafts P A R T SSB1050 P A R T S Bed & Shafts Parts ListLONGITUDINAL LEADSCREW SB1049 LONGITUDINAL LEADSCREW SB1050P A R T S End GearsGEAR FLAT WASHER 14MM GEAR FLAT WASHER 8MMP A R T S Main MotorSIDE MOTOR ACCESS COVER Main Motor Parts ListP A R T S PULLEY FLAT WASHER 10MMP A R T S Stands & PanelsP A R T S Cabinets & Panels Parts ListBRAKE PEDAL ROD SB1049 BRAKE PEDAL ROD SB1050P A R T S TailstockP A R T S Tailstock Parts ListHANDLE CAP SCREW M8-1.25 LOCK SHAFT FLAT WASHER 12MMSteady Rest Follow RestP A R T S Electrical Cabinet & Control Panel P A R T SElectrical Cabinet Accessories P A R T S1551 Front Machine Labels P A R T S1611 P A R T S Rear & Side Machine LabelsSB MODEL NUMBER LABEL SB1049 SB MODEL NUMBER LABEL SB1050Page W A R R A N T Y Warranty#TS14496 Printed In U.S.A