This .pdf document is bookmarked Operating Instructions and Parts Manual Woodturning Lathe 20” x 20” Model PM2020 Powermatic 427 New Sanford Road LaVergne, Tennessee 37086 Ph.: 800-274-6848 www.powermatic.com Part No.
1.0 Warranty and Service Powermatic warrants every product it sells against manufacturers’ defects. If one of our tools needs service or repair, please contact Technical Service by calling 1-800-274-6846, 8AM to 5PM CST, Monday through Friday. Warranty Period The general warranty lasts for the time period specified in the literature included with your product or on the official Powermatic branded website. • Powermatic products carry a limited warranty which varies in duration based upon the product.
2.0 Table of Contents Section Page 1.0 Warranty and Service ..................................................................................................................................... 2 2.0 Table of Contents ........................................................................................................................................... 3 3.0 Safety warnings ..................................................................................................................................
14. Make certain grounded. 3.0 Safety warnings 1. Read and understand the entire owner’s manual before attempting assembly or operation. 2. Read and understand the warnings posted on the machine and in this manual. Failure to comply with all of these warnings may cause serious injury. 3. Replace the warning labels if they become obscured or removed. 4. This Lathe is designed and intended for use by properly trained and experienced personnel only.
29. Do not stand on the machine. Serious injury could occur if the machine tips over. 33. Adjust the tool support to the proper height and position for the work. Rotate the workpiece by hand to check clearance with the tool support. 30. Never leave the Lathe running unattended. Turn the power off and do not leave the machine until it comes to a complete stop. 34. Select the appropriate speed for the turning job at hand. Start at low speed and allow the Lathe to ramp up to operating speed. 31.
5.0 Specifications Model Number ............................................................................................................................................ PM2020 Stock Number ........................................................................................................................................... 1792020 Capacities: Working distance between centers ....................................................................................................................
6.1 Contents of shipping container 6.0 Unpacking 1 Lathe Bed, with Headstock, Tailstock, & Tool Support Base – (A) 2 Leg Assemblies – (B) 1 Guard – (C) 1 Tool Support, 14” – (D) 1 Face Plate, 3” – (E) 1 Live Center – (F) 1 Spur Center, 1” – (G) 1 Index Pin – (H) 1 Live Center Pin – (J) 1 Knockout Rod – (K) 1 Face Plate Wrench – (L) 1 Tool Caddy – (M) 4 Levelers – (N) 10 Socket Hd.
7.0 Assembly 8. Exposed metal areas of the Lathe, such as the bed and spindles, have been factory coated with a protectant. This should be removed with a soft cloth and a cleaner-degreaser. Clean the bed areas under the headstock, tailstock and tool support base. Do not use an abrasive pad, and do not allow solvents to contact painted or plastic areas. 9. Re-install headstock, tool tailstock and stop bolts.
1. On the guard, loosen the set screw on the outer collar (shown in Figure 5) with a 4mm hex wrench. Slide the outer collar off the guard support rod. 2. Have an assistant hold the bed extension flush to the end of the Lathe bed, and insert three 3/8 x 1-3/4 socket head cap screws, three 3/8 lock washers and three 3/8 flat washers, through the holes in the bed extension into the threaded holes on the Lathe. See Figure 7. Figure 5 2.
For outboard turning, where the headstock is moved to the opposite end of the Lathe to accommodate large bowl blanks, you can (1) mount the 18” bed extension to the three lower holes on the Lathe frame, and (2) mount a vertical extension post [included with the optional bed extension] to the tool rest base. See Figure 9. For large outboard work, an optional outboard turning stand (# 6294732) is available – see sect. 16.4.1. Figure 10 Figure 9 (shown with optional accessories) 7.
Local codes take precedence over recommenddations. 4. When all holes have been bored, place the 2x6’s on edge in the outer ledges of the Lathe. 5. Cut the dowel rods to length with a miter saw or hand saw, so that after insertion the rods will be flush with the back of the rear 2x6. 6. Insert the dowel rods through the holes in the rear 2x6, as shown in Figure 12.
9.0 Adjustments 9.1 Headstock and tailstock movement To slide the headstock or tailstock, swing the locking handle (A, Figure 13) backward or forward until the headstock/tailstock can slide freely. When the headstock/tailstock is positioned, rotate the locking handle to tighten it securely. To remove headstock, tailstock or toolrest base from the bed, unscrew and remove either of the stop bolts (B, Figure 13). After re-mounting these items on the Lathe, re-insert the stop bolt.
9.5 Live center and cone The live center cone, shown in Figure 16, screws clockwise onto the threads of the live center body. To remove the cone from the live center, first insert the live center pin through the hole in the live center body as shown in Figure 16. If the pin will not insert at first, rotate the cone until the pin can be inserted. The cone can now be removed by holding the body stationary while unscrewing the cone.
Figure 19 Figure 21 9.8 Face plate: installing/removing 9.9 Speed change 1. Disconnect Lathe from power source. 1. Disconnect Lathe from power source. 2. Mount the face plate to your bowl blank. 2. 3. Push in the spindle lock button (Figure 20) and rotate the handwheel slightly until the spindle locks. Keep the spindle lock button pushed in. To change speed ranges, pull open the access door on the headstock. 3.
Do not over tighten the bearing lock nut or the spindle bearings will overheat. 4. The bearing lock nut should be tightened just enough to remove the end play and the spindle should still rotate very freely. Run the lathe for a time, and check for heat from the spindle bearings. If the bearings are running hot, the bearing lock nut is too tight and should be loosened slightly. 5.
12. Loosen the pivot lock handle and lower the motor using the tension handle. Re-tighten the pivot lock handle. If you suspect there is a problem with the inverter or the inverter settings, contact Powermatic technical service at 1-800-274-6848. 10.0 Operating controls A lightning strike or power surge may cause the inverter to fail. When lathe is not in use, disconnect power plug, or have a 3- or 4-pole disconnect installed on the power side. See Figure 24.
Deep Fluted Bowl Gouge – 1/4", 3/8" and 1/2", used for turning bowls & plates. Never allow the tool to rest in one place on the wheel, keep it moving and use a light touch. Square Scraper (Bedan) – 3/8” or 1/2", used to create square shoulders. Carbon steel tools can overheat easily and should be cooled frequently. If the edge turns blue, it has lost its temper and should be ground past the blue area. High-speed steel tools are not as likely to overheat, but can be damaged if allowed to get red hot.
The tailstock ram is capable of exerting excessive pressure against the workpiece and the headstock. Apply only sufficient force with the tailstock to hold the workpiece securely in place. Excessive pressure can overheat center bearings and damage both workpiece and Lathe. 10. Move tool support into position. It should be parallel to the workpiece, just below the centerline and approximately 1/8" to 1/4" from the corners of the workpiece to be turned, as in Figure 29. Tighten support base to Lathe bed. 11.
Figure 30 4. 5. 6. Figure 31 Keep as much of the bevel of the tool as possible in contact with the workpiece to ensure control and avoid catches. NOTE: Always cut down-hill, or from large diameter to small diameter. Always work toward the end of a work-piece, never start cutting at the end. "V" Cuts Once the workpiece is roughed down to a cylinder, smooth it with a large skew.
Sanding and Finishing NOTE: When using a waste block, be careful with the adhesive you select. Dry workpieces can be bonded with ordinary white or yellow glue but must be clamped to ensure a good bond. Green workpieces require cyanoacrylate type glue. Leaving clean cuts will reduce the amount of sanding required. Move the tool support out of the way, adjust the lathe to a low speed, and begin with fine sandpaper (120 grit or finer).
having it in the finished piece. Most checks radiate from the pith. control, use your whole body to move the gouge through the workpiece. As you turn bowls from green wood, make sure you maintain a consistent wall thickness throughout the piece. Leaving a piece thick in some areas and thin in others will cause the wood to dry unevenly and promote checks and cracks. 7. As the bowl takes shape, work on the bottom (tailstock end) to accomodate attaching a face plate. 8.
minutes, wipe off excess. Allow to dry before sanding again with 320 or 400 grit sandpaper. 4. Turn lathe back on and continue the separation cut almost all the way through the base. Stop at about 3" and use a small fine tooth saw to separate the bowl from the waste. 5. Apply second finish coat and allow to dry before buffing. 12.0 Maintenance Figure 35 6. Before doing maintenance on the Lathe, disconnect it from the electrical supply by pulling out the plug or switching off the main switch.
13.0 Indexer positions How to use the chart The indexer is shown as viewed from the tailstock end of the Lathe. Points A, B, C and D are the holes in the head casting. The holes in the spindle collar may be considered as numbered 1 through 12. Example: You wish to rout 9 flutes on your spindle blank. Locate the “9” in the “No. of Flutes” column; each flute angle will be 40°. The index pin should first be inserted into hole combination “A-1”. Make your first flute at this position.
14.0 Troubleshooting the PM2020 Lathe Trouble Probable Cause Remedy * Motor fails to develop full power. Power line overloaded. Correct overload condition. Undersize wires in power supply system. Increase supply wire size. Faulty inverter. Contact Powermatic Technical Service. Worn motor. Replace motor. Excessive cut. Reduce depth of cut. Improper belt adjustment, or worn or broken belt. Adjust or replace belt as needed (see sect. 9.12). Improper cooling of motor.
15.0 Recommended lathe speeds (per diameter of workpiece) Diameter of Work Roughing RPM General Cutting RPM Finishing RPM Under 2” 1520 3000 3000 2” to 4” 760 1600 2290 4” to 6” 510 1080 1500 6” to 8” 380 810 1125 8” to 10” 300 650 900 10” to 12” 255 540 750 12” to 14” 220 460 640 14” to 16” 190 400 560 16” to 20” 175 325 450 20” to 24” 175 260 375 Table 4 16.0 Replacement parts Replacement parts are listed on the following pages.
16.1.
16.1.2 PM2020 Headstock Assembly – Parts List Index No. Part No. Description Size Qty 1 ................ 6294736 .................... Faceplate ................................................................. 3” .................................. 1 2 ................ 6295796 .................... Nyloc Insert Socket Set Screw ................................ 1/4-20x3/8” ................... 4 3 ................ 6294725 .................... Spur Center .....................................................
Index No. Part No. Description Size Qty 59 .............. 3601006 .................... Spindle Lock Plunger ............................................... ...................................... 1 60 .............. 3520B-260................. Control Label ........................................................... ...................................... 1 61 .............. 6294786 .................... Spindle Lock Bracket ............................................... ...................................
16.2.
16.2.2 PM2020 Stand and Bed Assembly – Parts List Index No. Part No. Description Size Qty 1 ................ 2020-101 ................... Bed .......................................................................... ...................................... 1 2 ................ 3520B-102................. Leg ........................................................................... ...................................... 2 3 ................ 6295754 .................... Stop Bolt .........................
16.3.1 Bed Extensions – Exploded View (optional accessory) 16.3.2 Bed Extensions – Parts List (optional accessory) Index No. Part No. Description Size Qty .................. 6294727B .................. 18” Bed Extension Assembly (includes items 1 thru 6) 1 ................ 3520B-310................. Extension Post ......................................................... ...................................... 1 2 ................ 6294763 .................... Locking Handle .............................
16.4.1 Outboard Turning Stand – Exploded View (optional accessory) 16.4.2 Outboard Turning Stand – Parts List (optional accessory) Index No. Part No. Description Size Qty. .................. 6294732 .................... Heavy Duty Outboard Turning Stand Assembly (items 1 thru 7) ...................... 1 ................ 3042503 .................... Turning Stand Base ........................................................................................ 1 2 ................ 6295897 ...................
16.5 Optional Accessories: Face Plates, Tool Supports and Misc. Index No. Part No. Description Size Qty. 1 ................ 6295902 .................... Ball Bearing Tailstock Center (not shown) . 2 ................ 6294736 .................... 3” Face Plate ..............................................1-1/4-8 .......................................... 3 ................ 6294733 .................... Remote ON/OFF Switch ...................................................................................
17.
18.0 Electrical: Remote On/Off Switch (optional accessory) NOTE: The Lathe can only operate when both the headstock and remote switches are in the “ON” position. To mount the remote switch to your Lathe, proceed as follows. 1. Disconnect all electrical power to the Lathe. 2. Remove the two screws from the control panel. Do NOT disconnect control panel from wiring harness. 3.
427 New Sanford Road LaVergne, Tennessee 37086 Phone: 800-274-6848 www.powermatic.
