Grizzly MODEL G0765 owner manual To change the jaw set

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To change the jaw set:

1.DISCONNECT LATHE FROM POWER!

2.Use appropriate device to protect ways (refer to Installation & Removal Device subsec- tion).

3.Insert chuck key and turn it counterclockwise to back jaws out and remove them individu- ally in descending order (i.e., 3, 2, 1).

4.Use mineral spirits to clean debris and grime from jaws and chuck jaw guides.

5.Apply thin coat of NLGI #2 grease to surfaces of removed jaw set. Store in safe place free from moisture and abrasives.

6.Rotate chuck key clockwise until you see tip of outer scroll-gear lead thread about to enter a jaw guide (see Figure below).

Lead Thread

Figure 25. Lead thread on scroll gear.

7.Insert jaw #1 into jaw guide and hold jaw against scroll-gear.

8.Rotate chuck key clockwise one turn to engage tip of scroll-gear lead thread into jaw. Pull jaw; it should be locked into jaw guide.

9.Install remaining jaws in numerical order, in same manner. The jaws should converge evenly at center of chuck.

—If jaws do not converge evenly, remove them. Re-install jaws sequentially 1–3, and make sure each one engages with scroll- gear lead thread during its first rotation.

-28-	Model G0765 (Mfd. Since 12/13)

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Contents Model G0765 14 Benchtop Lathe Page Table of Contents Service Control Panel WiringIntroduction Machine Description Manual AccuracyContact Info Identification Controls Components Control PanelCarriage Tailstock Rear Controls End GearsMachine Data Sheet Tailstock Info Features Safety Safety Instructions for MachineryPage Additional Safety for Metal Lathes Additional Chuck Safety Full-Load Current Rating Power SupplyAvailability 110V Circuit RequirementsMinimum Gauge Size 14 AWG Grounding & Plug RequirementsExtension Cords 50 ftPreparation SetupNeeded for Setup UnpackingInstalled Components Figure Qty InventoryPackaged Components Figures Qty Cleanup Before cleaning, gather the followingBasic steps for removing rust preventative Site Considerations Connecting Power AssemblyPower Connection Disconnecting PowerTest Run Disengaged Recommended Adjustments Factory adjustments that should be verifiedSpindle Break-In Operations Operation OverviewInstallation Removal Device Chuck & Faceplate MountingChuck Installation To install the chuckTools Needed Qty Scroll Chuck Clamping Changing Jaw SetTo change the jaw set Faceplate To mount a non-concentric workpiece to the faceplateTailstock Quill Specs Using QuillTailstock Positioning TailstockTo install tooling in the tailstock Installing ToolingOffsetting Tailstock Removing ToolingItems Needed Qty Aligning Tailstock to Spindle CenterlineTo offset the tailstock To align the tailstock to the spindle centerlinePage Mounting Dead Center in Spindle CentersDead Centers Removing Center from SpindleMounting Workpiece Between Centers Mounting Center in TailstockRemoving Center from Tailstock To mount a center in the tailstockTools Needed for Installation/Removal Qty To install and use the steady restSteady Rest Installing Tool Compound Rest Four-Way Tool PostTo align cutting tool with tailstock center Aligning Cutting Tool with Spindle CenterlineBelow are two common methods Top ViewManual Feed Spindle SpeedConfiguration Example Setting Spindle Speed RangeSetting Spindle Direction & Speed To set spindle speed to 100 RPMPower Feed Power Feed ControlsSetting Power Feed Rate To set power feed for 0.04 in./revSecondary Threading Configuration Primary Threading ConfigurationPower Feed Configuration End GearsEnd Gear Configuration Example To configure end gears for threading 20 TPI40T 65T Gear 50 T Ge ar 20 TPI Page To set the lathe to thread 20 TPI ThreadingHeadstock Threading Controls Feed Direction LeverThread Dial Chart Apron Threading ControlsThread Dial Dial Number Thread Dial Accessories D3640-Shop Fox Tool Table PlusMaintenance Cleaning/ProtectingSchedule Lubrication Lubrication FrequencyBall Oilers Leadscrew & Carriage Rack BedwaysCross Slide & Compound Slide Tumbler Gears Machine StorageChange Gear Bushing Preparing Lathe for StorageService TroubleshootingSymptom Possible Cause Possible Solution Lathe Operation Cross Slide Backlash AdjustmentLeadscrew End-Play Adjustment To remove leadscrew end playGib Adjustment To adjust cross slide and compound slide gibsTo adjust half nut Half Nut AdjustmentFuse Replacement To replace fuseBrush Replacement To replace motor brushesTiming Belt Tension Replacement Tensioning Timing BeltReplacing Timing Belt Wiring Wiring Safety InstructionsControl Panel Wiring Machine FrameControl Panel Wiring Photos G0765 wiring overviewMotor/Speed Sensor/ Plug Wiring 110 VACMain Description Description Labels & Cosmetics Front 255 254 256 257 259 258 253 252 261 251 260Threading Charts AppendixWarranty Card CommentsGrizzly INDUSTRIAL, INC BOX BELLINGHAM, WAWarranty & Returns