Grizzly G0747 and G0748 owner manual Table of Contents

Page 3

Table of Contents

INTRODUCTION

3

Machine Description

3

Contact Info

3

Manual Accuracy

3

Front View Identification

4

Model G0747 Headstock Identification

5

Model G0748 Headstock Identification

6

G0747 Machine Data Sheet

7

G0748 Machine Data Sheet

9

SECTION 1: SAFETY

11

Safety Instructions for Machinery

11

Additional Safety for Milling Machines

13

SECTION 4: OPERATIONS

26

Operation Overview

26

Table Movement

27

Graduated Index Rings

27

Table Locks

27

X-Axis Power Feed Identification

28

X-Axis Power Feed Operation

29

Head Movement

29

Tilting Head Forward/Backward

30

Rotating Head Left/Right

30

Ram Movement

31

Moving Ram Forward/Backward

31

Rotating Ram

31

SECTION 2: POWER SUPPLY

14

Availability

14

Full-Load Current Rating

14

Circuit Requirements for 220V

14

Grounding Instructions

15

Extension Cords

15

SECTION 3: SETUP

16

Unpacking

16

Needed for Setup

16

Inventory

17

Cleanup

18

Site Considerations

19

Lifting & Placing

20

Leveling & Mounting

21

Leveling

21

Bolting to Concrete Floors

21

Machine Mounts

21

Assembly

22

Initial Lubrication

22

Test Run

23

Mill Test Run

23

Power Feed Test Run

24

Spindle Break-In

25

Inspections & Adjustments

25

Spindle Speed

32

Determining Spindle Speed

32

Setting Model G0747 Spindle Speed

33

Setting Model G0748 Spindle Speed

35

Spindle Downfeed

36

Downfeed Controls

36

Coarse Downfeed

37

Fine Downfeed

37

Auto-Downfeed

38

Spindle Brake

39

Loading/Unloading Tooling

40

Loading Tooling

40

Unloading Tooling

40

SECTION 5: ACCESSORIES

41

SECTION 6: MAINTENANCE

43

Schedule

43

Ongoing

43

Before Beginning Operations

43

Daily, After Operations

43

Cleaning & Protecting

43

Lubrication

44

Quill

44

Table Ways (One-Shot Oiler)

45

Headstock Gearing

45

Ram Ways

46

Head Tilt & Ram Pinions

46

Table Elevation Leadscrew

46

Power Feed Gears

47

Machine Storage

48

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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 Instructions for Machinery SafetyPage Additional Safety for Milling Machines Circuit Requirements for Power SupplyAvailability Full-Load Current Rating50 ft Grounding InstructionsExtension Cords Minimum Gauge Size 14 AWGSetup 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 Machine Mounts Leveling & MountingLeveling Bolting to Concrete FloorsAssembly 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 Tool Needed Qty Axis Power Feed OperationTo operate the X-axis power feed Head MovementRotating Head Left/Right Tilting Head Forward/BackwardRam Movement Moving Ram Forward/BackwardRotating Ram Tool Diameter in inches x Spindle SpeedDetermining Spindle Speed Recommended Cutting Speed FPM 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 BrakeTools Needed Qty Loading/Unloading ToolingLoading Tooling Unloading ToolingG1076-52-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

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.