Woodstock M1109 owner manual Service, Cross Slide Backlash

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M1109 Combo Lathe/Mill

SERVICE

SERVICE

Cross Slide Backlash

Backlash is the amount of play found in a lead screw. It can be found by turning the cross slide handwheel in one direction, and then turning the handwheel the other direction. When the cross slide begins to move, the back- lash has been taken up.

Note: Avoid the temptation to overtighten the cross slide backlash screw. Overtightening will cause excessive wear to the sliding block and lead screw.

Backlash is adjusted by tightening or loosening the screw shown in Figure 59. This screw draws a wedge-type nut against the lead screw and main nut. If you get it too tight, loosen the screw a few turns and tap the cross feed a few times with a rubber or wooden mallet. Then turn the handle slowly back and fourth until the handle turns freely. To readjust the backlash, rock the handle back and fourth and tighten the screw slowly until the backlash

is at approximately 0.001" to 0.002" as indicated on the handwheel dial.

Note: Reducing backlash to less than 0.001" is impractical and reduces the life of the cross slide.

Cross Slide, Half-Nut,

and Compound Slide Gib

Adjustments

When adjusting these gibs (Figures 60 and 61), keep in mind that the goal is to remove sloppiness in the ways without causing the slides or half nut to bind. Loose gibs will cause a poor finish on the workpiece and may cause undue wear on the slide. Over-tightening may cause pre- mature wear on the slide, lead screw, and half-nut. The cross slide gib is a tapered piece of iron. When the oppos- ing front and rear gib adjustment screws are turned in opposing directions, the screws force the tapered gibs to fill the loose void in the way, thus tightening the play in the cross slide. If more play is needed turn the screws the other direction.

For the four saddle gibs, (Figure 60) loosen the jam nuts and turn the three set screws until there is slight tension felt and the gib plates are slightly preloaded against the underside of the flat-way. Tighten the jam nuts when fin- ished.

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Cross Feed

Backlash

Adjustment

Cap Screw

Figure 59. Cross slide backlash

adjustment cap screw.

Cross Slide Gib Adjustment Point

Saddle Gib Adjustment Points

Figure 60. Gib adjustment points.

Figure 61. Half-nut gib adjustment

location (thread dial is swung out of the

way for gib adjustment).

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Contents Combo LATHE/MILL Page Contents Parts Woodstock Technical Support SpecificationsIntroduction Controls and Features Safety Standard Safety InstructionsSafety Additional Safety Instructions for Lathe/Mills Avoiding Potential Injuries Always protect the bed ways,Extension Cords Electrical220V Operation GroundingPackaged Accessories Figure SetupInstalled Accessories Figure Qty InventoryCleaning Machine Machine PlacementUncrating and Lifting To unpack and move the lathe/mill, do these stepsTest Run and Break-In To begin the test run procedure, do these stepsTroubleshooting on General Power SupplyLathe Operations Disconnect Power to the LATHE/MILL Chuck and Faceplate MountingReplacing Jaws To remove a set of jaws, do these stepsUsing the Four-Jaw Chuck Clamping workpieceUsing the Faceplate Faceplate installedDrilling with the Tailstock Using the TailstockTo install the MT#3 drill chuck, do these steps To use the tailstock, do these stepsTailstock Alignment To setup the tailstock to cut tapers, do these stepsCutting Shallow Tapers With the Tailstock To align the tailstock, do these stepsTailstock adjustment option #2 Using Centers To install a dead or live center, do these stepsTo use the steady rest, do these steps Using the Steady RestUsing the Follow Rest To set the angular position, do these steps Setting Compound SlideUsing the Tool Post Using Manual Feed Longitudinal HandwheelCutting Speeds for High Speed Steel HSS Cutting Tools Setting RPMTo determine and set the needed cutting RPM, do these steps Setting Power Feed Rate Refer to the Change Gear Chart on Page 29, orLoosen the apron lock bolt and use the feed lever Figure Threading SetupTo setup for threading, do these steps Change Gear Chart Milling Operations Installing ToolsTo install a tool in the spindle, do these steps Removing ToolsTo position the spindle head vertically, do these steps Headstock PositioningQuill Travel To use the quill, do these stepsTo begin the start up procedure, do these steps Table TravelHigh speed steel cutting chart General Cleaning MaintenanceGeneral Maintenance General LubricationAdjusting/Replacing the V-Belt To replace or adjust the V-belts, do these stepsCross Slide Backlash ServiceCross Slide, Half-Nut Compound Slide Gib Adjustments Electrical Component and Connection Index M1109 Electrical panelElectrical Connections ContactorTransformer connection Wiring Diagram Lathe controlsTroubleshooting Motor & ElectricalOperation and Work Results Parts Diagram Series Parts List PART# DescriptionThread Dial Diagram 1007 1028SPANNERNUTM16-1.5 Leadscrew Gearbox Diagram 2000 Series Parts Coverplate Compound Rest and Tool Post Diagram FEMALEKNOB5/16-18 Bed Diagram 3000 Series Parts BED Steady Rest and Follow Rest Diagram Pinnedknob Apron Diagram XPK81M Tailstock Diagram STEELBALL8MM Mill Column Diagram XPLW05M LOCKWASHER12MM Headstock Diagram 7000 Series Parts XPR12M EXTRETAININGRING35MM Accessories and Labels Diagram 6THREE-JAWCHUCK Main Wiring Box Diagram Parts Warranty Warranty Registration CommentsBOX BELLINGHAM, WA
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