Grizzly G0747 and G0748 owner manual Axis Power Feed Identification

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X-Axis Power Feed Identification

The mill is equipped with a power feed unit for X-axis table movement. Refer to Figure 19 and the descriptions below to understand the func- tions of the various components of the power feed system.

A

B

 

C

 

D

E

 

F

 

G

J

I

H

E

D

 

F

G

H

I

Figure 19. Power feed controls.

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A.Limit Switch. Stops table movement when either of the switch side plungers are pressed by the limit stops.

B.Limit Stop. Restricts table movement by its positioning along the front of the table.

C.Graduated Index Ring. Displays the dis- tance of table travel in 0.001" increments, with one full revolution equal to 0.200" of table travel.

D.Feed/Jog Switch. In the left (feed) position, it enables the power feed to operate normally.

While pressing the switch to the right (jog position), the table moves in the selected direction until the switch is released.

In the middle position ("0"), table movement is disabled.

E.Speed Dial. Controls the speed of the power feed. Turning the dial clockwise causes the table to move faster.

F.Direction Knob. Selects the direction of table movement. The middle position is neutral.

G.Rapid Traverse Button. When pressed, moves the table at full speed when it is already in motion.

H.ON/OFF Button. Turns the power feed ON and OFF.

I.Circuit Breaker Reset Button. Resets the internal circuit breaker if the unit is overload- ed and shuts down.

J.X-Axis Ball Handle. Manually moves the table.

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

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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 Safety Instructions for MachineryPage Additional Safety for Milling Machines Full-Load Current Rating Power SupplyAvailability Circuit Requirements forMinimum Gauge Size 14 AWG Grounding InstructionsExtension Cords 50 ftSetup Needed for SetupUnpacking Inventory Small Item Inventory Figure QtyCleanup Before cleaning, gather the followingBasic steps for removing rust preventative Site Considerations Lifting & Placing HEAVy LiftTo lift and move the mill Bolting to Concrete Floors Leveling & MountingLeveling Machine MountsAssembly Initial LubricationTo assemble the mill Test Run Mill Test RunPower Feed Test Run To test the power feedInspections Adjustments To perform the spindle break-in procedureSpindle Break-In Operations Operation OverviewTable Movement Graduated Index RingsTable Locks Axis Power Feed Identification Head Movement Axis Power Feed OperationTo operate the X-axis power feed Tool Needed QtyTilting Head Forward/Backward Rotating Head Left/RightRam Movement Moving Ram Forward/BackwardRotating Ram Recommended Cutting Speed FPM x Spindle SpeedDetermining Spindle Speed Tool Diameter in inches xSetting Model G0747 Spindle Speed To set the Model G0747 spindle speedLow Spindle Speed Range Setting Model G0748 Spindle Speed To set the Model G0748 spindle speedSpindle Downfeed Downfeed ControlsCoarse Downfeed Fine DownfeedTo use the coarse downfeed Auto-Downfeed To use the auto-downfeedSpindle Brake Model G0747 brake lever G0748 Brake LeverUnloading Tooling Loading/Unloading ToolingLoading Tooling Tools Needed QtyAccessories G1076-52-PC. Clamping KitG7155-6 Precision Milling Vise G9299-10 Yuasa-Type Rotary TableMaintenance Cleaning ProtectingSchedule Lubrication QuillTable Ways One-Shot Oiler Headstock GearingRam Ways Head Tilt & Ram PinionsTable Elevation Leadscrew Power Feed Gears To lubricate the power feed gearsMachine Storage Service TroubleshootingSymptom Possible Cause Possible Solution Symptom Possible Cause Possible Solution Adjusting Gibs Saddle gib and adjustment screw Knee Gib Adjustment ScrewAdjusting Leadscrew Backlash Axis Leadscrew BacklashCross Leadscrew Backlash Tramming Spindle To tram the spindle to the tablePage Wiring Wiring Safety InstructionsG0747 Wiring Diagram G0748 Wiring Diagram Parts MainMain Parts List DescriptionAxis Leadscrews DescriptionDownfeed System Downfeed System Parts List CAM ROD Sleeve Assembly G0747 Headstock G0747 Headstock Parts List PFH30M Flat HD SCR M5-.8 XG0748 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 Warranty Card CommentsGrizzly INDUSTRIAL, INC BOX BELLINGHAM, WAWarranty & Returns

G0747 and G0748 specifications

The Grizzly G0747 and G0748 are advanced metal lathes designed for precision machining and versatility, catering to both amateur machinists and professional workshops. These machines stand out in the realm of metalworking equipment, thanks to their robust construction and innovative features.

One of the key attributes of the G0747 and G0748 is their solid cast iron construction, which provides excellent vibration dampening during operation. This enhances stability and precision, crucial for producing high-quality machined parts. Equipped with powerful motors, both models are capable of handling a wide range of materials, from aluminum to harder metals like steel.

The G0747 features a variable speed drive system, allowing users to adjust the spindle speed based on the project at hand. This flexibility is beneficial for tasks that require different cutting speeds, enabling machinists to optimize cutting performance and tool longevity. Its variable speed output ranges, alongside smooth torque delivery, make it ideal for intricate turning operations.

On the other hand, the G0748 includes an advanced digital readout (DRO) system. This feature provides real-time feedback on the machine's position and speed, significantly improving accuracy in measurements during machining tasks. The DRO system allows operators to set precise limits and keep track of their progress, essential for complex projects where exact dimensions are critical.

Both lathes are equipped with a user-friendly interface, making them accessible for beginners while still offering advanced functionalities that seasoned professionals appreciate. They include multiple tooling options, allowing for an expansive range of machining techniques including turning, threading, and drilling.

Moreover, the G0747 and G0748 come with a comprehensive assortment of accessories, such as different types of chucks and tool holders, which further extends their capabilities. The ease of changing tooling and quick setup times are significant advantages for shops aiming for efficiency and versatility in their operations.

In conclusion, the Grizzly G0747 and G0748 metal lathes are exemplary units that balance power, precision, and user-friendliness. Their advanced features, such as variable speed capabilities and digital readouts, equip machinists with the tools necessary to produce exceptional work. Whether for hobbyists or industrial applications, these lathes are built to meet a variety of machining needs with impressive performance and reliability.
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