Grizzly g0748, g0747 owner manual Table Movement, Graduated Index Rings, Table Locks

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Table Movement

The mill table moves in three directions, as illus- trated in Figure 16:

X-axis (longitudinal)

y-axis (cross)

z-axis (vertical)

These movements are controlled by table ball handles and the Z-axis crank. Additionally, the table can be moved along the X-axis with the power feed.

X-Axis or Longitudinal Travel

(Left & Right)

Y-Axis or

Cross Travel (In & Out)

Z-Axis or

Vertical Elevation

(Up & Down)

Figure 16. The directions of table movement.

Graduated Index Rings

The table ball handles and knee crank have grad- uated index rings (see Figure 17) that are used to determine table movement in the increments listed below:

Axis

Individual

One Full

Increment

Revolution

 

X

0.001"

0.200"

Y

0.001"

0.200"

Z

0.001"

0.100"

Model G0747/G0748 (Mfg. Since 8/12)

Index Rings

Figure 17. Locations of index rings.

Table Locks

Use table locks to increase the rigidity of the table when movement in that direction is not required for the operation.

Refer to Figure 18 to identify the locks for each table axis.

X-Axis Locks

Z-Axis

Lock

(1 of 2)

Y-Axis

Lock

Figure 18. Locations of table locks for each axis.

Always keep the table locked in place unless table movement is required for your operation. Unexpected table and workpiece movement could cause the cutter to bind with the workpiece, which may ruin the cut- ter or the workpiece.

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Contents For models manufactured since 8/12 Page Table of Contents Wiring Contact Info IntroductionMachine Description Manual Accuracy Front View Identification Model G0747 Headstock Identification Model G0748 Headstock Identification Machine Data Sheet Main Specifications Operation Info Model G0748 Vertical Mill Variable Speed Variable Safety Instructions for Machinery SafetyPage Additional Safety for Milling Machines Availability Power SupplyFull-Load Current Rating Circuit Requirements forExtension Cords Grounding InstructionsMinimum Gauge Size 14 AWG 50 ftUnpacking SetupNeeded for Setup Small Item Inventory Figure Qty InventoryBasic steps for removing rust preventative CleanupBefore cleaning, gather the following Site Considerations To lift and move the mill Lifting & PlacingHEAVy Lift Leveling Leveling & MountingBolting to Concrete Floors Machine MountsTo assemble the mill AssemblyInitial Lubrication Mill Test Run Test RunTo test the power feed Power Feed Test RunSpindle Break-In Inspections AdjustmentsTo perform the spindle break-in procedure Operation Overview OperationsTable Locks Table MovementGraduated Index Rings Axis Power Feed Identification To operate the X-axis power feed Axis Power Feed OperationHead Movement Tool Needed QtyRotating Head Left/Right Tilting Head Forward/BackwardRotating Ram Ram MovementMoving Ram Forward/Backward Determining Spindle Speed Spindle SpeedRecommended Cutting Speed FPM x Tool Diameter in inches xTo set the Model G0747 spindle speed Setting Model G0747 Spindle SpeedLow Spindle Speed Range To set the Model G0748 spindle speed Setting Model G0748 Spindle SpeedDownfeed Controls Spindle DownfeedTo use the coarse downfeed Coarse DownfeedFine Downfeed To use the auto-downfeed Auto-DownfeedModel G0747 brake lever G0748 Brake Lever Spindle BrakeLoading Tooling Loading/Unloading ToolingUnloading Tooling Tools Needed QtyG1076-52-PC. Clamping Kit AccessoriesG9299-10 Yuasa-Type Rotary Table G7155-6 Precision Milling ViseSchedule MaintenanceCleaning Protecting Quill LubricationHeadstock Gearing Table Ways One-Shot OilerTable Elevation Leadscrew Ram WaysHead Tilt & Ram Pinions To lubricate the power feed gears Power Feed GearsMachine Storage Symptom Possible Cause Possible Solution ServiceTroubleshooting Symptom Possible Cause Possible Solution Saddle gib and adjustment screw Knee Gib Adjustment Screw Adjusting GibsAxis Leadscrew Backlash Adjusting Leadscrew BacklashCross Leadscrew Backlash To tram the spindle to the table Tramming SpindlePage Wiring Safety Instructions WiringG0747 Wiring Diagram G0748 Wiring Diagram Main PartsDescription Main Parts ListDescription Axis LeadscrewsDownfeed System Downfeed System Parts List CAM ROD Sleeve Assembly G0747 Headstock PFH30M Flat HD SCR M5-.8 X G0747 Headstock Parts ListG0748 Headstock G0748 Headstock Parts List Headstock Front COVER, Aluminum One-Shot Oiler Accessories G0747 Machine Labels & Cosmetics G0748 Machine Labels & Cosmetics Model G0747/G0748 Mfg. Since 8/12 Comments Warranty CardBOX BELLINGHAM, WA Grizzly INDUSTRIAL, INCWarranty & Returns