Grizzly G0747 and G0748 owner manual Lubrication, Quill

Page 46

Lubrication

The mill has numerous moving metal-to-metal contacts that require regular and proper lubrica- tion to ensure efficient and long-lasting operation, and to protect your investment.

Other than the lubrication points covered in this section, all other bearings are internally lubricated and sealed at the factory. Simply leave them alone unless they need to be replaced.

Before performing any lubrication task, DISCONneCT THe MILL FROM POWER!

Important: Before adding lubricant, clean the debris and grime from the oil cup or grease fitting and the immediate area to prevent contamination of the new lubricant.

Use the schedule and information in Figure 51 as a daily guide for lubrication tasks. Follow the referenced sections on the following pages for detailed instructions.

The following recommended lubrication schedule is based on light to medium mill usage. Keeping in mind that lubrication helps to protect the value and operation of the mill, you may need to perform the lubri- cation tasks more frequently depending on your usage.

 

Frequency

Page

Lubrication Task

(Hours of

Ref.

 

Operation)

Quill

4 hrs.

This

Page

 

 

Table Ways (One-Shot

4–8 hrs.

45

Oiler)

 

 

 

 

 

Headstock Gearing

40 hrs.

45

 

 

 

Ram Ways

40 hrs.

46

Table Elevation Leadscrew

40 hrs.

46

(Z-Axis)

 

 

Power Feed Gears

160 hrs.

47

Figure 51. Recommended lubrication tasks, schedules, and instruction page references.

-44-

Failure to follow reasonable lubrication practices as instructed in this manual for the mill could lead to premature failure of the mill and will void the warranty.

Quill

Oil Type

Model T23962 or ISo 68 Equivalent

Oil Amount

Fill Oil Cup

Check/Add Frequency

4 hrs. of Operation

Lift the quill oil cup cap shown in Figure 52 to add 10 drops of lubricant.

Quill Oil Cup

Figure 52. Quill oil cup.

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

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Contents For models manufactured since 8/12 Page Table of Contents Wiring Machine Description Manual Accuracy IntroductionContact 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 ftNeeded for Setup SetupUnpacking Inventory Small Item Inventory Figure QtyBefore cleaning, gather the following CleanupBasic steps for removing rust preventative Site Considerations HEAVy Lift Lifting & PlacingTo lift and move the mill Bolting to Concrete Floors Leveling & MountingLeveling Machine MountsInitial Lubrication AssemblyTo assemble the mill Test Run Mill Test RunPower Feed Test Run To test the power feedTo perform the spindle break-in procedure Inspections AdjustmentsSpindle Break-In Operations Operation OverviewGraduated Index Rings Table MovementTable 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/RightMoving Ram Forward/Backward Ram MovementRotating 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 ControlsFine Downfeed Coarse 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 TableCleaning Protecting MaintenanceSchedule Lubrication QuillTable Ways One-Shot Oiler Headstock GearingHead Tilt & Ram Pinions Ram WaysTable Elevation Leadscrew Power Feed Gears To lubricate the power feed gearsMachine Storage Troubleshooting ServiceSymptom 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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