Grizzly G4002, G4003 instruction manual Metric thread selection, To use the chart

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Metric thread selection:

The chart in Figure 17 lists 29 metric threads that can be cut on the G4002/3. Five ranges are used on the left hand quick change selector and 6 on the right hand quick change selector. Additionally, 5 gear changes are necessary to accomplish all of the available metric threads. These gear changes take place on the left hand end of the machine. See Figure 18.

The chart is divided into 3 main sections or columns. Starting from the left: Gear diagram, Combination of Gears and m/m Per Pitch.

To use the chart:

1.Find the desired pitch in the chart.

2.Below the m/m Per Pitch label are numbers. Find the corresponding number above the desired pitch and change the right hand quick change lever to that position.

Figure 17. Metric thread chart

3.To the left of the desired pitch is a small column with a letter. This letter indicates placement of the left hand quick change lever. Move the lever to the corresponding location.

4.In the “Combination of Gears” column are 3 small columns. Please note the “F” and “G” at the top. The numbers below F and G represent the number of gear teeth of a gear included with the lathe. Find the gears that have the corresponding number of teeth as stated in the chart to the left of the desired pitch.

Example:

The desired metric pitch is 1.25 mm. Find this number in the chart and find the number of teeth of the two gears to the left. The F gear will need to have 47 teeth and the G will need 60 teeth. A diagram on the left side of the chart on the machine tells us the 47 tooth gear goes on top of the middle gear and the 60 tooth gear goes on the bottom.

Figure 18. Change gear bracket and gears.

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G4002/3 Gear Head Lathes

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Contents Gear Head Metal Lathe Model G4002 / G4003Page Table Of Contents Safety Safety Instructions For Power ToolsLength AMP Rating Additional Safety Instructions For The Lathe Extension Cords Circuit Requirements220V Operation Grounding Introduction CommentaryUnpacking Piece InventoryClean Up Site Considerations Lubrication Assembly & SetupMountingChucks If the chuck is still tight on the spindle To install a chuckTo remove a chuck Live Center Steady Rest See FigureFollow Rest Jaw ChuckControls Spindle SpeedsNever change speeds while spindle or motor is in motion ExampleFeed Direction Never move selection levers while machine is runningFeed Rate Chart Feed rate selectionThread Selection Inch thread selectionExample To use the chart Metric thread selectionGear Placement G4002/3 Gear Head Lathes To change gearsCarriage Controls Tool Post and Holder Tailstock Controls Detail of tailstock controls G4002/3 Gear Head LathesTest Run Before starting the machineAdjustments GibsSteady/Follow Rest This bolt locks the apron in placeTailstock TIPTailstock offset adjustment screw G4002/3 Gear Head Lathes Maintenance Bearing Preload Closure Machine Data Grizzly Model G4003 12 X 36 Gear Head Lathe Electrical Components Start Button G4002/3 Gear Head Lathes Screw Eccentric Shaft PSB26M CAP Screw M6-1 X G4002/3 Gear Head Lathes Lead Screw G4002/3 Gear Head Lathes Hand Wheel G4002/3 Gear Head Lathes Saddle Compound Slide G4002/3 Gear Head Lathes Center Motor 2 HP OIL CAP Lathe BED Warranty and Returns Warranty Card Grizzly INDUSTRIAL, INC