Southbend SB1015, SB1014, SB1038 Backlash Adjustment, Compound Leadscrew, Cross Slide Leadscrew

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For Machines Mfg. Since 7/09

S E R V I C E

EVS Toolroom Lathes

Backlash Adjustment

Backlash is the amount of free play felt while switching rotation directions with the handwheel. This can be adjusted on the compound and cross slide leadscrews.

Reducing backlash to less than 0.001" is impractical. Avoid the temptation to overtighten the backlash set screw while adjusting. Overtightening leads to accelerated wear of the wedge, nut, and leadscrew.

Compound Leadscrew

 

Tools Needed:

Qty

Hex Wrench 3mm

1

Backlash is adjusted by tightening the set screws shown in Figure 125. When these screws are adjusted against the leadscrew nut, they offset part of the nut to remove play between the nut and leadscrew.

If you end up adjusting the nut too tight, loosen the set screws, tap the compound a few times with a rubber or wooden mallet, and turn the handle slowly back and forth until it moves freely.

To readjust the backlash, rock the handle back and forth, and tighten the screws slowly until the backlash is at approximately 0.001" as indicated on the handwheel dial.

Set Screws

Figure 125. Compound slide backlash adjustment set

screws.

Cross Slide Leadscrew

 

Tools Needed:

Qty

Hex Wrench 3mm

1

Hex Wrench 5mm

1

Backlash is adjusted by loosening all four cap screws shown in Figure 126, and then tightening the center set screw, which pushes down on a wedge and forces the nut apart, taking up lash in the nut and leadscrew.

If you end up adjusting the nut too tight, loosen the set screw, tap the cross slide a few times with a rubber or wooden mallet, and turn the handle slowly back-and-forth, until the handle turns freely.

To re-adjust the backlash, rock the handle back and forth and tighten the set screw slowly until the backlash is at approximately 0.001" as indicated on the handwheel dial.

Cap Screw

Set

Screw

Figure 126. Cross slide backlash adjustment screws.

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Image 67
Contents 14 & 16 EVS Toolroom Lathes Manual Feedback UpdatesCustomer Service Scope of ManualTable of Contents Accessories Capabilities FeaturesAbout These Machines ForewordIdentification Understanding Risks of Machinery Basic Machine SafetyTrained/Supervised Operators Only F E T Y Additional Metal Lathe Safety Typical preparation process is as follows Preparation OverviewThings Youll Need UnpackingMain Inventory 1 Figure Qty InventoryTool Box Inventory Figure Qty Before cleaning, gather the following Cleaning & ProtectingBasic steps for removing rust preventative Location Lifting & Moving Cross-Section View of Lifting SetupTo lift and move your lathe Leveling Leveling & MountingLubricating Lathe AssemblyBolting to Concrete Floors Adding Cutting Fluid Power ConnectionHardwiring Lathe to Power Source Connecting Power Cord to LatheTo connect power cord to the lathe To test run your machine Correcting Out-of-Phase WiringTo correct wiring that is out of phase Test RunControl panel-test run Spindle ON/OFF lever-setup E P a R a T I O N To complete the spindle break-in Spindle Break-InFactory adjustments that should be verified Recommended AdjustmentsOperation Overview Headstock Controls Main Power SwitchCarriage Controls Control panel Control PanelTailstock controls Tailstock Controls Foot BrakeItems Needed Qty Removing Chuck or FaceplateTo mount a chuck or faceplate Mounting Chuck or FaceplateTool Needed Qty Installing and Adjusting Camlock StudsCorrect camlock stud alignment Jaw ChuckTo change the jaw Changing JawsMounting Workpiece Item Needed QtyTo mount a workpiece on the 4-jaw chuck TailstockMoving Along Bedway Using QuillInstalling Tooling To install tooling in the tailstockAligning OffsettingTo align the tailstock offset to the spindle center line Looking down from above Move tailstock toward Mounting Workpiece with Clamps FaceplateMounting Workpiece Between Centers Live Centers CentersMounting Dead Center in Spindle Dead CentersTo mount a center in the tailstock Removing Center from SpindleMounting Center in Tailstock Removing Center from TailstockSteady Rest To install and use the steady restFollow Rest To set the compound slide at a certain angle Compound SlideFour-Way Tool Post To load the tool postCenter Aligning Cutting Tool with Tailstock CenterTools Needed Qty To align the cutting tool with the tailstockTo adjust the carriage stop Adjustable Apron Stop SystemCarriage Stop Spindle Speed Manual FeedSetting Spindle Speed Power FeedTo engage the power feed Power Feed ControlsTo use the quick change feed direction knob Positioning Gearbox Levers Understanding Thread & Feed Rate ChartMod. D.P Configuring End Gears End Gear SetupNormal Position Alternate PositionHalf Nut Lever Power Feed LeverThread Dial & Chart Overview Threading ControlsOdd Numbered TPI Using Thread Dial and ChartTPI 4-72 Divisible By TPI 2-54 Not Divisible ByOther Fractional TPI Chip Drawer27⁄8 TPI To use the cutting fluid system on your lathe Cutting Fluid SystemHigh-Precision 3-Jaw Scroll Chucks AccessoriesSB1279-10 Pc. Precision 5-C Collet Set SB1247-MT4 Bull Nose CenterSBL Gearhead T-Shirt SBL One Good Turn T-Shirt Cleaning Maintenance ScheduleAnnual Service Checking & Adding Oil Monitoring Oil TemperatureLubrication HeadstockTo clean the oil pump system Cleaning Pump System & Changing OilApron GearboxChanging Oil Unpainted & Machined Surfaces Lead Screw & Feedrod BearingsLead Screw Ways & SlidesTo clean the filter Cleaning Electrical Box FilterBall Oilers Lubricating Annual MaintenanceEnd Gearing Handling & CareAdding Fluid HazardsTo change the cutting fluid Changing Cutting FluidTo prepare your machine for short-term storage up to a year Machine StorageCompound Leadscrew Backlash AdjustmentCross Slide Leadscrew Gib Adjustment Leadscrew End Play AdjustmentTo remove leadscrew end play To adjust the half nut Half Nut AdjustmentTo adjust the clutch release point Feedrod Clutch AdjustmentBelts Brake & SwitchTo adjust the V-belts To adjust the brake and brake switchRe-install the pedal stop, tightening it To replace the shear pin Leadscrew Shear Pin ReplacementRe-install the access covers To re-install the gap Gap Removal InstallationTo remove the gap TR O U B L E S H O OTI N G TR O U B L E S H O OTI N G TR O U B L E S H O OTI N G Warranty Southbendlathe.com
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SB1037, SB1038, SB1012, SB1015, SB1013 specifications

The Southbend SB1012 is a versatile and efficient commercial range designed specifically for the rigorous demands of professional kitchens. This powerful cooking appliance features a robust construction and advanced technologies that cater to chefs who require precision and reliability in their culinary endeavors.

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Durability is a hallmark of the Southbend SB1012. The range is constructed from heavy-duty stainless steel, which not only enhances its aesthetic appeal but also ensures resistance to wear and tear in a busy kitchen environment. The removable ovens and easy-access components facilitate straightforward cleaning and maintenance, ensuring the equipment remains in peak condition even after extensive use.

To further improve user experience, the Southbend SB1012 is designed with safety features in mind. The range often includes pilot lights for easy ignition, and the heavy-duty construction minimizes the risk of accidental damage.

In summary, the Southbend SB1012 combines powerful cooking performance with durable construction and ease of use, making it a preferred choice for professional kitchens looking to optimize their cooking capabilities. Its advanced features, versatility, and reliability are tailored to meet the high standards of culinary professionals.