Number of Pages: 31 This is a reproduction of an original Asian 9" x 20" Metal Lathe Instructions and Parts Manual. This machine is manufactured in Asia and has been sold under many different names including: JET, Grizzly, Enco, MSC, etc... This manual contains information on set up, lubrication, maintenance, and controls as well as a complete parts list and exploded views and adjustments.
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Specifications: | Capacities | | Compound & Carriage | | | Swing Over Bed: | 9" | Tool post Type: | 4-Wav | | Swing Over Cross Slide: | 5 5/16" | Maximum Tool Size: | 1/2" x 1/2" | | Distance Between Centers: | 20" | Maximum Compound Slide Travel: | 1 7/8" | | Headstock | | Maximum Cross Slide Travel: | 5" | | Hole Through Spindle: | 7/8” | Tailstock | | | Spindle Nose (Threading Size Varies): | PTESE 11/2" x 8 T.P.I. | Tailstock Spindle Travel. | 1 9/16" | | Taper in Spindle Nose: | SPECS MT 3 | Diameter of Tailstock Spindle: | 1 1/16" | | Number of Spindle Speeds: of Spindle Speeds (RPM): | 6 Range 130-2,000 | Taper in Tailstock Spindle: | MT 2 | | Gear Box | | Miscellaneous | | | Number of Longitudinal Feeds: | 18 | Length of Bed: | 32" | | Range of Longitudinal Feeds (inch/rev. | .005”.011” | Width Bed: | 41/2" | | Range of Inch Threads: | 8-56 T.P.I. | Overall Dimensions: | 371/2" Lx 19 3/4'' Wx 15 3/4'' H | | Range of Metric Threads: | .05-3.0 mm | Main Motor. | % HP, 1 Ph, 60 Hz | | Leadscrew: | 9/16" x 16 T.P.I. | | 115V or 230V | Contents: Specifications..............................................................4 Standard Equipment....................................................4 Technical data.............................................................4 Set Up and preparation for operation..........................4 General Description....................................................5 Lathe Bed..................................................................5 Headstock..................................................................5 Carriage.....................................................................6 Apron........................................................................6 Tailstock.....................................................................7 Leadscrew..................................................................7 Gear Box....................................................................7 Drive and Electrical Equipment....................................7 Controls.....................................................................8 Working with the BD-920...........................................9 Tool Set Up................................................................9 Manual Turning...........................................................9 Longitudinal Turning with Auto-Feed...........................9 Taper Turning using Tailstock Set-over......................10 Taper Turning by Setting the Top Slide......................10 Turning between centers............................................10 Thread Cutting...........................................................11 Example of Gear Set up to cut 10 T.P.I......................11 Slip Clutch.................................................................11 Thread Cutting Tables................................................11 Lathe Accessories.....................................................12 Universal Lathe Chuck, 3 or 4 jaw design.................12 4-Jaw Independent Chuck.........................................12 Drill Chuck...............................................................12 Morse Taper Arbor..................................................12 Live Center...............................................................12 Steady Rest..............................................................13 Follow Rest..............................................................13 Setting the Steady Rest..............................................13 4-Way Tool Post......................................................14 Gear Change.............................................................14 Bearing and Slide Adjustment....................................15 Adjustment of Main Spindle Bearings........................15 Adjustment of Cross and Top Slides..........................15 Adjustment of Feed Screw End Float........................15 Feed Screw Backlash Adjustment.............................15 Cross Slide Screw....................................................15 Compound Slide Spindle Backlash Adjustment..........16 Adjustment of Half-Nut Guide...................................16 Adjustment of Lead Screw Backlash.........................16 Replacing the Shear Pin in the Leadscrew..................16 Replacing the V-belt..................................................17 Lubrication schedule..................................................18 Wiring diagram..........................................................19 Parts Breakdown.................................................20-31
Overview: I have collected this information for many years and have found the information they contain to be priceless in using and setting up the machines properly. I believe this manual will be a valuable resource of knowledge that will provide a lot of helpful information that is often hard to find. My manuals are not photocopies. I maintain a high standard of quality in my reproductions. Most of the manuals I reproduce look better than their originals. I have professionally digitally edited every page, and removed stains, wrinkles and handwriting. All of the manuals are printed on thick white paper to withstand shop wear and tear. |
