Operating Instructions and Parts Manual Woodturning Lathe

Operating Instructions and Parts Manual
Woodturning Lathe
Model 3520B

Powermatic 427 New Sanford Road LaVergne, Tennessee 37086 Ph.: 800-274-6848 www.powermatic.com

Part No. M-1352001 Revision D 10/2014 Copyright © 2014 Powermatic

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. (See chart below)
• Accessories carry a limited warranty of one year from the date of receipt. • Consumable items are defined as expendable parts or accessories expected to become inoperable within a
reasonable amount of use and are covered by a 90 day limited warranty against manufacturer’s defects.
Who is Covered This warranty covers only the initial purchaser of the product from the date of delivery.
What is Covered This warranty covers any defects in workmanship or materials subject to the limitations stated below. This warranty does not cover failures due directly or indirectly to misuse, abuse, negligence or accidents, normal wear-and-tear, improper repair, alterations or lack of maintenance. Powermatic woodworking machinery is designed to be used with Wood. Use of these machines in the processing of metal, plastics, or other materials may void the warranty. The exceptions are acrylics and other natural items that are made specifically for wood turning.
Warranty Limitations Woodworking products with a Five Year Warranty that are used for commercial or industrial purposes default to a Two Year Warranty. Please contact Technical Service at 1-800-274-6846 for further clarification.
How to Get Technical Support Please contact Technical Service by calling 1-800-274-6846. Please note that you will be asked to provide proof of initial purchase when calling. If a product requires further inspection, the Technical Service representative will explain and assist with any additional action needed. Powermatic has Authorized Service Centers located throughout the United States. For the name of an Authorized Service Center in your area call 1-800-274-6846 or use the Service Center Locator on the Powermatic website.
More Information Powermatic is constantly adding new products. For complete, up-to-date product information, check with your local distributor or visit the Powermatic website.
How State Law Applies This warranty gives you specific legal rights, subject to applicable state law.
Limitations on This Warranty POWERMATIC LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD OF THE LIMITED WARRANTY FOR EACH PRODUCT. EXCEPT AS STATED HEREIN, ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXCLUDED. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
POWERMATIC SHALL IN NO EVENT BE LIABLE FOR DEATH, INJURIES TO PERSONS OR PROPERTY, OR FOR INCIDENTAL, CONTINGENT, SPECIAL, OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OF OUR PRODUCTS. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.
Powermatic sells through distributors only. The specifications listed in Powermatic printed materials and on the official Powermatic website are given as general information and are not binding. Powermatic reserves the right to effect at any time, without prior notice, those alterations to parts, fittings, and accessory equipment which they may deem necessary for any reason whatsoever.
Product Listing with Warranty Period 90 Days – Parts; Consumable items 1 Year – Woodworking Machinery used for industrial or commercial purposes 5 Year – Woodworking Machinery
NOTE: Powermatic is a division of JPW Industries, Inc. References in this document to Powermatic also apply to JPW Industries, Inc., or any of its successors in interest to the Powermatic brand.
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Table of Contents
Warranty and Service.................................................................................................................................... 2 Table of Contents .......................................................................................................................................... 3 Warning ......................................................................................................................................................... 4 Introduction.................................................................................................................................................... 5 Specifications ................................................................................................................................................ 6 Unpacking ..................................................................................................................................................... 7
Contents of the Shipping Container .......................................................................................................... 7 Assembly....................................................................................................................................................... 8
Comparator Rear Bracket.......................................................................................................................... 9 Tool Caddy ................................................................................................................................................ 9 Guard......................................................................................................................................................... 9 Bed Extension (Optional Accessory) ....................................................................................................... 10 Shelf Assemblies (Optional) .................................................................................................................... 11 Grounding Instructions ................................................................................................................................ 12 Single Phase Operation........................................................................................................................... 13 Three Phase Operation ........................................................................................................................... 13 Extension cords ....................................................................................................................................... 13 Adjustments ................................................................................................................................................ 13 Headstock and Tailstock Movement ....................................................................................................... 13 Cam Tightness ........................................................................................................................................ 14 Tool Support ............................................................................................................................................ 14 Locking Handles ...................................................................................................................................... 14 Live Center and Cone.............................................................................................................................. 15 Indexer..................................................................................................................................................... 15 Centers – Installing and Removing ......................................................................................................... 15 Face Plate – Installing and Removing..................................................................................................... 16 Comparator – Installing and Using .......................................................................................................... 16 Speed Change......................................................................................................................................... 17 Sheave and Belt Alignment ..................................................................................................................... 18 Checking Spindle Play............................................................................................................................. 18 Sheave/Drive Belt Replacement ............................................................................................................. 18 Operating Controls ...................................................................................................................................... 19 Operation..................................................................................................................................................... 20 Turning Tools........................................................................................................................................... 21 Spindle Turning ....................................................................................................................................... 22 Cutting Techniques.................................................................................................................................. 23 Face Plate and Bowl Turning .................................................................................................................. 25 Bowl Turning Techniques ........................................................................................................................ 26 Maintenance................................................................................................................................................ 27 Indexer Positions......................................................................................................................................... 28 Troubleshooting .......................................................................................................................................... 29 Recommended Lathe Speeds (per diameter of workpiece) ....................................................................... 30 Replacement Parts...................................................................................................................................... 30 Headstock Assembly ............................................................................................................................... 31 Parts List: Headstock Assembly.............................................................................................................. 32 Stand and Bed Assembly ........................................................................................................................ 34 Parts List: Stand and Bed Assembly ....................................................................................................... 35 Optional Accessories: Bed Extensions.................................................................................................... 36 Optional Accessories: Outboard Turning Stand ...................................................................................... 37 Optional Accessories: Face Plates, Tool Supports and Misc.................................................................. 38 Electrical Connections................................................................................................................................. 39 Electrical: Remote ON/OFF Switch (Optional Accessory) .......................................................................... 40
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Warning
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. If you are not familiar with the proper and safe operation of a Lathe, do not use until proper training and knowledge have been obtained.
5. Do not use this Lathe for other than its intended use. If used for other purposes, Powermatic disclaims any real or implied warranty and holds itself harmless from any injury that may result from that use.
6. Always wear approved safety glasses/face shields while using this machine. Everyday eyeglasses only have impact resistant lenses; they are not safety glasses.
7. Before operating this Lathe, remove tie, rings, watches and other jewelry, and roll sleeves up past the elbows. Remove all loose clothing and confine long hair. Non-slip footwear or anti-skid floor strips are recommended. Do not wear gloves.
8. Wear ear protectors (plugs or muffs) during extended periods of operation.
9. Some dust created by power sanding, sawing, grinding, drilling and other construction activities contain chemicals known to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:
• Lead from lead based paint. • Crystalline silica from bricks, cement and other masonry products. • Arsenic and chromium from chemically treated lumber. Your risk of exposure varies, depending on how often you do this type of work. To reduce your exposure to these chemicals, work in a well-ventilated area and work with approved safety equipment, such as face or dust masks that are specifically designed to filter out microscopic particles.
10. Do not operate this machine while tired or under the influence of drugs, alcohol or any medication.
11. Do not expose this machine to rain, or operate machine in damp locations.
12. Make certain the switch is in the OFF position before connecting the machine to the power supply.
13. Make certain the machine is properly grounded.
14. Make all machine adjustments or maintenance with the machine unplugged from the power source.
15. Remove adjusting keys and wrenches. Form a habit of checking to see that keys and adjusting wrenches are removed from the machine before turning it on.
16. Keep the safety guard in place at all times when the machine is in use. If removed for maintenance purposes or for turning procedures which do not permit its use, exercise extreme caution and replace the guard immediately after the operation is complete.
17. Check damaged parts. Before further use of the machine, a guard or other part that is damaged should be carefully checked to determine that it will operate properly and perform its intended function. Check for alignment of moving parts, binding of moving parts, breakage of parts, mounting and any other conditions that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced.
18. Provide for adequate space surrounding work area and non-glare, overhead lighting.
19. Keep the floor around the machine clean and free of scrap material, oil and grease.
20. Keep visitors a safe distance from the work area. Keep children away.
21. Make your workshop child proof with padlocks, master switches or by removing starter keys.
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22. Give your work undivided attention. Looking around, carrying on a conversation and “horse-play” are careless acts that can result in serious injury.
23. Maintain a balanced stance at all times so that you do not fall or lean against the centers, workpiece or other moving parts. Do not overreach or use excessive force to perform any machine operation.
24. Use the right tool at the correct speed and feed rate. Do not force a tool or attachment to do a job for which it was not designed. The right tool will do the job better and safer.
25. Use recommended accessories; improper accessories may be hazardous.
26. Keep turning tools sharp and clean for the best and safest performance, and position the tools properly in relation to the workpiece.
27. Turn off the machine before cleaning. Use a brush or compressed air to remove chips or debris — do not use your hands.
28. Do not stand on the machine. Serious injury could occur if the machine tips over.
29. Never leave the Lathe running unattended. Turn the power off and do not leave the machine until it comes to a complete stop.
30. Remove loose items and unnecessary work pieces from the area before starting the machine.
31. Check the workpiece carefully for splits, knots or other obstructions which may cause a safety risk while turning.
32. 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.
33. Select the appropriate speed for the turning job at hand. Start at low speed and allow the Lathe to ramp up to operating speed.
34. Never stop a rotating workpiece with your hand.
35. If gluing up a workpiece, always use a high-quality glue of the type necessary for that particular workpiece.

Familiarize yourself with the following safety notices used in this manual:
This means that if precautions are not heeded, it may result in minor injury and/or possible machine damage.

even death.

This means that if precautions are not heeded, it may result in serious injury or possibly
- - SAVE THESE INSTRUCTIONS - -

Introduction
This manual is provided by Powermatic covering the safe operation and maintenance procedures for a Model 3520B Lathe. This manual contains instructions on installation, safety precautions, general operating procedures, maintenance instructions and parts breakdown. This machine has been designed and constructed to provide consistent, long-term operation if used in accordance with instructions set forth in this manual. If there are any questions or comments, please contact either your local supplier or Powermatic. Powermatic can also be reached at our web site: www.powermatic.com.

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Specifications
Model Number...............................................................................................................................................3520B Stock Number ........................................................................................................................................... 1352001
Capacities: Working distance between centers ..............................................................................................................34-1/2” Working distance between centers, 18” bed extension mounted....................................................................... 48” Maximum distance between spindle face and tailstock quill .............................................................................. 36” Swing over bed .................................................................................................................................................. 20” Swing over toolrest base .................................................................................................................................... 17” Maximum diameter outboard turning ................................................................................................................. 38”
Motor and Electricals: Motor type ............................................................................................. totally enclosed fan cooled, induction Horsepower ................................................................................................................................ 2HP (1.5 kW) Voltage ....................................................................................................................................................220 V Cycle ........................................................................................................................................................60Hz Motor FLA (full load amperage)................................................................................................................... 6.2 Power requirements .............................................................................................................220V, 3Ph or 1Ph Drive system............................................................................................................. Poly V belt, inverter drive VFD input amperage ................................................................................................ 15.7A (1PH), 8.4A (3PH) VFD output to motor ....................................................................................................................... 7.5A (3PH) Recommended circuit* ..............................................................................................................................20 A * subject to local and national electrical codes
Headstock and Spindle: Spindle speeds (RPM) ........................................................................................ high 125-3200; low 50-1200 Spindle thread size ..................................................................................................................... 1-1/4” x 8 TPI Spindle direction...................................................................................................................... forward/reverse Headstock spindle taper.................................................................................................................... #2 Morse Hole through headstock spindle, diameter ................................................................................................. 5/8” Outboard external threads...................................................................................................... 1-3/16”–18 UNC Indexing positions......................................................................................................................................... 48
Tailstock: Tailstock quill taper............................................................................................................................ #2 Morse Hole through tailstock spindle, diameter .................................................................................................... 3/8” Tailstock quill travel ................................................................................................................ 4-1/2” (114 mm)
Measurements: Maximum overall length ..................................................................................................... 77-1/4” (1854 mm) Overall height to top of headstock ..................................................................................... 49-1/2” (1257 mm) Distance from floor to centerline of spindle ............................................................. 44” (1118 mm) adjustable Footprint of stand ............................................................................................. 50”L x 24”W (1270 x 610 mm) Tool support post diameter........................................................................................................... 1” (25.4mm)
Materials: Headstock body.................................................................................................................................. cast iron Bed ..................................................................................................................................................... cast iron Legs.................................................................................................................................................... cast iron Tool rest and base.............................................................................................................................. cast iron Comparator brackets .......................................................................................................................... cast iron
Weights: Net ........................................................................................................................................... 630 lb (286 kg) Shipping ................................................................................................................................... 682 lb (309 kg)
The above specifications were current at the time this manual was published, but because of our policy of continuous improvement, Powermatic reserves the right to change specifications at any time and without prior notice, without incurring obligations.
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Unpacking
Open shipping container and check for shipping damage. Report any damage immediately to your distributor and shipping agent. Do not discard any shipping material until the Lathe is assembled and running properly.
Compare the contents of your container with the following parts list to make sure all parts are intact. Some parts can be found in separate boxes packed around the Lathe. Missing parts, if any, should be reported to your distributor. Read the instruction manual thoroughly for assembly, maintenance and safety instructions.
Contents of the Shipping Container
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) 12 Socket Hd. Cap Screws, 3/8” x 1-1/4” – (O) 12 Lock Washers, 3/8” – (P) 10 Flat Washers, 3/8” – (R) 2 Comparator Centers – (S) 1 Comparator Rear Bracket with
Lock Handle – (T) 1 Owner's Manual 1 Warranty Card

Read and understand the entire contents of this manual before attempting set-up or operation! Failure to comply may cause serious injury.
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Assembly
Tools required for assembly
14mm wrench 4mm and 8mm hex wrenches
The Lathe should be disconnected from power during assembly. 1. Remove any screws or straps that hold the
Lathe parts to the pallet, and remove protective wrapping. Set all the boxes containing legs and accessories to the side.
2. Before assembling the legs, decrease the weight on the Lathe bed: Remove the stop bolt at each end of the bed, and slide off the headstock, tailstock and tool support base (Refer to “Headstock and Tailstock Movement” on pages 13-14 for any clarification on removing these).
The headstock is heavy; use caution when removing it from the lathe bed.
3. Turn the lathe bed upside down on the shipping pallet (make sure there is nothing beneath that would scratch the bed ways).
4. Install the legs to the bed using eight socket head cap screws with eight lock washers and eight flat washers (Figure 1). Tighten the screws firmly with an 8mm hex wrench.
5. Screw the levelers into the threaded holes of the legs (Figure 1). Tighten the hex nuts against the bottom of the legs with a 14mm wrench. The levelers can be adjusted at any time to ensure the Lathe is stable and level.
6. Use an assistant to help stand the Lathe right side up on its legs.
7. The Lathe should be located in a dry area, on a sturdy floor, and with sufficient lighting. Leave plenty of space around the machine for operations and routine maintenance work.
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 cleanerdegreaser. 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 support base, tailstock and stop bolts.
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Figure 1

Comparator Rear Bracket
Mount the comparator rear bracket (A, Figure 2) to the back of the tailstock with two 3/8 x 1-1/4 socket head cap screws, two 3/8 lock washers and two 3/8 flat washers (B, Figure 2). The bracket has a slot so it can be aligned with the bracket on the headstock. (See “Comparator – Installing and Using” for further information.)
Tool Caddy
The tool caddy, shown in Figure 3, can be mounted to the left end or right end of the Lathe. The left end, near the headstock area, is generally preferred for convenience. Use two socket head cap screws and two lock washers with an 8mm hex wrench to secure the tool caddy to the threaded holes in the Lathe.
The tool caddy has holes for placing the knockout rod, spur center, live center, live center pin, comparator centers, and faceplate wrench.
Accessories can also be stored in the tailstock, as shown in Figure 4.

Figure 2 Figure 3

Guard
The guard must always be used in operations that will allow its use.
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. Insert the guard support rod into the mounting bracket at the rear of the headstock, as shown in Figure 5. You will have to lift up on the spring pin, as shown, to slide the guard support rod into the mounting bracket. Release the spring pin and it will snap into position as you slide the support rod farther in.
3. Install the outer collar and tighten the set screw.
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Figure 4 Figure 5

4. The guard can be pivoted to one of two positions: Operating mode (shown on front cover) or tilted back for stock loading (shown in Figure 6).
5. Pull up on the spring pin, and begin tilting the guard, then release the spring pin. When the guard reaches either of the two positions, the spring pin will engage.
Bed Extension (Optional Accessory)
An optional 18” bed extension assembly, stock number 6294727B, is available for the Lathe (see your Powermatic dealer). To mount the bed extension to the Lathe:
1. Slide the tailstock away from the edge of the bed.
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.
3. Shift the bed extension upward so that it is slightly higher than the Lathe bed. Tighten the screws with an 8mm hex wrench just enough to hold the bed extension to the Lathe bed.
IMPORTANT: The surface of the bed extension must be leveled with the surface of the Lathe bed to allow smooth movement of the tailstock across the seam.
4. Use a dead blow mallet, or a hammer with a block of wood, to tap down the bed extension until it is flush with the Lathe bed. See Figure 8. Never use a steel-faced hammer directly against the bed surfaces. Tap the bed extension where needed until its surface is aligned with the Lathe bed, and the inside ways are aligned.
5. Firmly tighten the three socket head cap screws. Make sure your alignment of the bed surfaces doesn’t shift while tightening the screws.
6. Unscrew the stop bolt from the Lathe bed (Figure 7), and screw it into the hole at the end of the bed extension.

Figure 6
Figure 7 (optional 18” bed extension shown)
Figure 8

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