Grizzly g0748, g0747 owner manual Ram Movement, Moving Ram Forward/Backward, Rotating Ram

Page 33

Ram Movement

The ram travels forward or backward 24" and rotates 360° around the turret.

Tool Needed

Qty

Wrench 19mm

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

Moving Ram Forward/Backward

1.DISCONNECT MILL FROM POWER!

2.loosen the two lock bolts shown in Figure 24.

Lock Bolts

Adjustment

Bolt

Figure 24. Ram forward/backward movement

controls.

3.Make sure there are no obstructions to ram travel, especially any tooling around the workpiece, then slowly rotate the adjustment bolt to move the ram. Rotating the bolt clock- wise will move the ram backward.

4.re-tighten the lock bolts.

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

Always lock the ram firmly in place after moving it. Unexpected movement of the ram and head during operations could damage the cutter or workpiece.

Rotating Ram

1.DISCONNECT MILL FROM POWER!

2.loosen the four lock bolts on top of the turret (see Figure 25).

Note: There are two lock bolts on each side of the ram.

Lock Bolts

(2 of 4)

Rotation

Scale

Figure 25. Ram rotational controls.

Note: In the next step, take care not to entangle or stretch the electrical cabling as you move the ram around the turret.

3.push on the head to manually rotate it. Use the rotation scale to determine the correct position for your operation, then re-tighten the four lock bolts to secure the ram in place.

-31-

Image 33
Contents For models manufactured since 8/12 Page Table of Contents Wiring Introduction Machine Description Manual AccuracyContact Info 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 ftSetup Needed for SetupUnpacking Small Item Inventory Figure Qty InventoryCleanup Before cleaning, gather the followingBasic steps for removing rust preventative Site Considerations Lifting & Placing HEAVy LiftTo lift and move the mill Leveling Leveling & MountingBolting to Concrete Floors Machine MountsAssembly Initial LubricationTo assemble the mill Mill Test Run Test RunTo test the power feed Power Feed Test RunInspections Adjustments To perform the spindle break-in procedureSpindle Break-In Operation Overview OperationsTable Movement Graduated Index RingsTable Locks 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/BackwardRam Movement Moving Ram Forward/BackwardRotating Ram 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 DownfeedCoarse Downfeed Fine DownfeedTo use the coarse 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 ViseMaintenance Cleaning ProtectingSchedule Quill LubricationHeadstock Gearing Table Ways One-Shot OilerRam Ways Head Tilt & Ram PinionsTable Elevation Leadscrew To lubricate the power feed gears Power Feed GearsMachine Storage Service TroubleshootingSymptom Possible Cause Possible Solution 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