Grizzly G0554Z owner manual Shear Pin Replacement, To replace the shear pin

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Shear Pin

Replacement

The longitudinal leadscrew is secured to the con- necting collar of the gearing in the headstock with the use of a soft-metal tapered shear pin (see Figure 90). The shear pin is designed to break and disengage power to the leadscrew to help protect more expensive lathe components if you crash your carriage or take too large of a cut and overload the lathe.

Connecting Collar

Shear Pin

Figure 90. Longitudinal leadscrew shear pin.

Tools Needed

Qty

Hex Wrench 6mm

1

Hammer

1

Punch 2.5mm

1

To replace the shear pin:

 

1.DISCONNECT LATHE FROM POWER!

2.Move the power feed lever to the horizon- tal position to disengage it, then hold the leadscrew in place by moving the half-nut lever up to engage the half-nut.

-60-

3.Remove the leadscrew end bracket shown in

Figure 91.

Note: Take care not to put pressure on the leadscrew or rods when the end bracket is removed to prevent bending them.

Leadscrew

End Bracket

Figure 91. Leadscrew end bracket.

4.Use the carriage handwheel to slowly pull the leadscrew away from the connecting collar on the gearbox.

5.Drill out the pieces of the shear pin from the leadscrew and connecting collar, then care- fully re-insert the leadscrew back into the collar so that the shear pin hole is correctly aligned through both parts.

Note: Keep in mind that the shear pin hole is tapered and must be properly aligned to accept a new tapered shear pin.

6.Re-install a new tapered shear pin.

7.Re-install the leadscrew end bracket

Model G0554Z (Mfg 01/09+)

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Contents Model G0554Z Page Table of Contents Contact Info IntroductionManual Accuracy Machine DescriptionIdentification Machine Data Sheet Tailstock Info Wearing Proper APPAREL. Do not wear SafetySafety Instructions for Machinery Hearing PROTECTION. Always wear hearSafety Instructions for Machinery Additional Safety for Metal Lathes 220V Single-Phase Operation Circuit RequirementsUnpacking SetupNeeded for Setup Description QtyInventory Inventory Figures QtyCleanup Before cleaning, gather the followingSite Considerations Placing Assembling Lathe Floor refer to Mounting to Shop Floor onCarriage and cross slide handles Installed Test Run Mounting to Shop FloorChecking Gear Oil Bolting to Concrete FloorsTo test run the machine Test RunPage Spindle Break-In Recommended AdjustmentsFactory adjustments that should be verified Operations Operation OverviewBasic Controls Main Power SwitchSpindle Speed Configuration Chart Headstock ControlsGearbox Controls Carriage Controls & Components ON/OFFTailstock Controls Foot Brake Tools Needed for Removing/Installing QtyChuck & Faceplate Mounting Removing Chuck or FaceplateMounting Chuck or Faceplate Reversing Jaws Installing Cam-Lock StudsJaw Chuck Mounting Workpiece To mount a workpiece onto the 3-jaw chuckTo mount a workpiece onto the 4-jaw chuck Faceplate Loading WorkpieceDead Centers Using Dead Center in SpindleCenters Live CentersTo mount a workpiece onto the tailstock dead center Using a Center in the TailstockTo mount a workpiece onto the spindle dead center Offsetting Tailstock To set up the tailstock to cut a shallow taperTailstock Alignment To align the tailstock offset to the spindle cen- ter lineTo install an MT#3 drilling tool into the tailstock Drilling with TailstockCoolant System To use the coolant system on your latheTo install/use the steady rest Steady RestCarriage Stop To adjust the carriage stopFollow Rest To load the tool post Four-Way Tool Post Spindle SpeedCalculating Spindle Speed Recommended Cutting SpeedsResult Example aStep Example BAnnealed Allow Steel Alloys Power FeedUnderstanding the Feed Rate & Threading Charts Rough10 11 11 1⁄ 1⁄ 2 5 5 1⁄ 2 5 3⁄ Setting Feed Rate Controls To set the feed controlsSide Front View To configure the quick change gearsQuick Change Gears Engaging Power Feed To engage the power feed for non-threading operationsThreading Controls Power Feed LeverThread Dial & Chart Half-Nut LeverThread Dial G1070-MT3 Live Center Set AccessoriesG1075-52-PC. Clamping Kit G9612-Test Indicator G9610-Test IndicatorG9611-Test Indicator H6879-Lathe Operation & Maintenance BookSchedule MaintenanceCleaning Protecting Lubrication Daily LubricationHeadstock, Gearbox, & Apron Oil Reservoirs Tensioning Replacing V-Belts Tensioning V-BeltsChecking Coolant Tank Checking/Cleaning Coolant SystemReplacing V-Belts To check the coolant tankCleaning Coolant Tank To replace the coolantMotor & Gearbox ServiceTroubleshooting Operation and Work Results Cross and Compound Slide Gibs Cross Slide Backlash AdjustmentGib Adjustments To adjust the tailstock lock Tailstock Lock AdjustmentTo adjust the saddle gib Saddle GibShear Pin Replacement To replace the shear pinSteps Brake PadsTo check/replace the brake pads To adjust the spindle bearing preload Spindle Bearing PreloadPage Gap Removal To remove the gapWiring Wiring Safety InstructionsElectrical Overview BoxElectrical Cabinet Identification Electrical cabinet identification Model G0554Z Mfg 01/09+Cabinet wiring diagram Electrical Cabinet Wiring Diagram 71 Page 70Halogen Lamp Side Door Safety SwitchElectrical Components a Electrical Components B Brake SwitchPower Source MotorCoolant Pump Spindle SwitchesElectrical Components C Control PanelParts Headstock Shifting BreakdownHeadstock Shifting Parts List DescriptionHeadstock Gearing Breakdown Headstock Gearing Parts List Headstock Spindle Breakdown Headstock Spindle Parts List Gearbox Shifting Breakdown Gearbox Shifting Parts List Gearbox Gearing Breakdown Gearbox Gearing Parts List Apron Controls Apron Gearing 458 CSaddle & Cross Slide Breakdown Cap ScrewSaddle & Cross Slide Parts List Compound Slide & Tool Post Tailstock Leadscrew Thread Dial 703 754 756 704 705 706707 708 709 710Adjustment Knob Change & End Gears Bed & Shaft Breakdown Bed & Shaft Parts List Stand & Brake Breakdown Stand & Brake Parts List Motor FANElectrical Breakdown Electrical Parts List Motor FANAccessories Label Placement Warranty Card CommentsGrizzly INDUSTRIAL, INC BOX BELLINGHAM, WAWarranty and Returns Warranty and ReturnsOrder Hours a DAY