Grizzly MODEL G0765 owner manual Gib Adjustment, To adjust cross slide and compound slide gibs

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Gib Adjustment

The goal of adjusting the gib screws is to remove sloppiness or "play" from the ways without over- adjusting them to the point where they become stiff and difficult to move.

In general, loose gibs cause poor finishes and tool chatter; however, over-tightened gibs cause premature wear and make it difficult to turn the handwheels.

The gib adjustment process usually requires some trial-and-error. Repeat the process as necessary until you find the best balance between loose and stiff movement. Most machinists find that the ideal gib adjustment is one where a small amount of drag or resistance is present, yet the handwheels are still somewhat easy to move.

Clean and lubricate the ways before beginning any adjustments. Refer to Lubrication on Page 51 for instructions and lubricant specifications.

Tools Needed

Qty

Open-End Wrench 7mm.

................................... 1

Hex Wrench 3mm

1

To adjust cross slide and compound slide gibs:

1.DISCONNECT LATHE FROM POWER!

2.Loosen three hex nuts on side of cross slide or compound slide (see Figures 82–83).

Cross Slide

Adjustment

Fasteners

Figure 82. Cross slide gib adjustment hex nuts

and cap screws.

Model G0765 (Mfd. Since 12/13)

Compound Slide

Adjustment

Fasteners

Figure 83. Compound slide gib adjustment hex

nuts and cap screws.

3.Adjust all three cap screws in small and equal increments, then test movement of slide by rotating handwheel.

Note: Turning cap screws clockwise tightens the gib, and turning them counterclockwise loosens the gib.

4.When satisfied with gib adjustment, use hex wrench to prevent cap screws from moving, then retighten hex nuts to secure the settings.

5.Recheck movement of slide and, if neces- sary, repeat Steps 2–4.

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Contents Model G0765 14 Benchtop Lathe Page Table of Contents Control Panel Wiring ServiceContact Info IntroductionMachine Description Manual Accuracy Identification Carriage Controls ComponentsControl Panel End Gears Tailstock Rear ControlsMachine Data Sheet Tailstock Info Features Safety Instructions for Machinery SafetyPage Additional Safety for Metal Lathes Additional Chuck Safety 110V Circuit Requirements Power SupplyAvailability Full-Load Current Rating50 ft Grounding & Plug RequirementsExtension Cords Minimum Gauge Size 14 AWGUnpacking SetupNeeded for Setup PreparationPackaged Components Figures Qty Installed Components Figure QtyInventory Basic steps for removing rust preventative CleanupBefore cleaning, gather the following Site Considerations Disconnecting Power AssemblyPower Connection Connecting PowerTest Run Disengaged Spindle Break-In Recommended AdjustmentsFactory adjustments that should be verified Operation Overview OperationsChuck & Faceplate Mounting Installation Removal DeviceTools Needed Qty Chuck InstallationTo install the chuck Changing Jaw Set Scroll Chuck ClampingTo change the jaw set To mount a non-concentric workpiece to the faceplate FaceplatePositioning Tailstock Using QuillTailstock Tailstock Quill SpecsRemoving Tooling Installing ToolingOffsetting Tailstock To install tooling in the tailstockTo align the tailstock to the spindle centerline Aligning Tailstock to Spindle CenterlineTo offset the tailstock Items Needed QtyPage Removing Center from Spindle CentersDead Centers Mounting Dead Center in SpindleTo mount a center in the tailstock Mounting Center in TailstockRemoving Center from Tailstock Mounting Workpiece Between CentersSteady Rest Tools Needed for Installation/Removal QtyTo install and use the steady rest Compound Rest Four-Way Tool Post Installing ToolTop View Aligning Cutting Tool with Spindle CenterlineBelow are two common methods To align cutting tool with tailstock centerSpindle Speed Manual FeedTo set spindle speed to 100 RPM Setting Spindle Speed RangeSetting Spindle Direction & Speed Configuration ExamplePower Feed Controls Power FeedTo set power feed for 0.04 in./rev Setting Power Feed RateEnd Gears Primary Threading ConfigurationPower Feed Configuration Secondary Threading Configuration40T 65T Gear 50 T Ge ar 20 TPI End Gear Configuration ExampleTo configure end gears for threading 20 TPI Page Feed Direction Lever ThreadingHeadstock Threading Controls To set the lathe to thread 20 TPIThread Dial Thread Dial ChartApron Threading Controls Dial Number Thread Dial D3640-Shop Fox Tool Table Plus AccessoriesSchedule MaintenanceCleaning/Protecting Ball Oilers LubricationLubrication Frequency Cross Slide & Compound Slide Leadscrew & Carriage RackBedways Preparing Lathe for Storage Machine StorageChange Gear Bushing Tumbler GearsSymptom Possible Cause Possible Solution ServiceTroubleshooting Lathe Operation To remove leadscrew end play Backlash AdjustmentLeadscrew End-Play Adjustment Cross SlideTo adjust cross slide and compound slide gibs Gib AdjustmentTo replace fuse Half Nut AdjustmentFuse Replacement To adjust half nutTo replace motor brushes Brush ReplacementTensioning Timing Belt Timing Belt Tension ReplacementReplacing Timing Belt Wiring Safety Instructions WiringMachine Frame Control Panel WiringG0765 wiring overview Control Panel Wiring Photos110 VAC Motor/Speed Sensor/ Plug WiringMain Description Description 255 254 256 257 259 258 253 252 261 251 260 Labels & Cosmetics FrontAppendix Threading ChartsComments Warranty CardBOX BELLINGHAM, WA Grizzly INDUSTRIAL, INCWarranty & Returns