Subscribe to Our Youtube Channel
Related Manuals for Nova PRO-TEK G3
Summary of Contents for Nova PRO-TEK G3
- Page 1 PRO-TEK G3 CHUCK Publication date: 22 September 2020 Models: 48290 – Insert Thread (Insert Required) 48291 – 1” 8TPI Reversible 48292 – M33 ASR Eurolock...
-
Page 2: Contact Us
Contact Us Teknatool International Ltd Phone: (+64) 9 477 5600 Teknatool USA Phone: 727-954-3433 Customer Solutions For all worldwide Inquiries, Repairs or Services (issues must be in writing) Email: Service@Teknatool.com Or you can contact your retailer - for contact information please see our website www.teknatool.com... -
Page 3: Table Of Contents
Forming a Mortis/Recess or Tenon/Spigot ........................20 Safety Concerns when turning ..........................20 Forming a Mortis/Recess ............................21 If you do not own a NOVA Dovetail chisel ........................22 Recommended Diameter of the recess ........................22 Forming a Tenon/Spigot ............................. 24 Recommended diameter for the tenon/spigot ...................... -
Page 4: Welcome
Welcome Thank you for purchasing our NOVA PRO-TEK G3 Geared Chuck. It is a new addition to our NOVA woodturning chuck range with advanced features to enhance your chuck use. It provides a versatile and easy method for fast and secure work holding for all face turning –... - Page 5 The jaw slides (accessory jaws removed) can be used to grip small tenons/spigots. ACCURACY: The PRO-TEK G3 Chucks are sample tested from each batch and are made to run within the following tolerance limits measured on the 50mm (2”) PRO-TEK Jaws: Face/Axial Runout (X Axis) Maximum: 0.08mm (0.0031 inch)
-
Page 6: General Health And Safety Guidance
As with other work holding methods, an extremely cautious and sensible approach is necessary. With the PRO-TEK G3 Chuck it is not possible to give exact directions as to the amount of tightening pressure required for adequate work holding or approved chisel cutting techniques. - Page 7 unless workpiece is firmly clamped. WARNING LATHE SPEED: Excessive speed is a serious lathe hazard. Always turn at the slowest speed possible. Speed will vary with wood blank size. The larger the blank the slower the speed. Consult your lathe manual or lathe information plate for speed guidelines.
- Page 8 WEAR SUITABLE CLOTHING. Do not wear any loose clothing, neck ties, gloves, bracelets, rings, or other jewelry that could get caught in moving parts. Wear protective hair covering to contain long hair. DRUGS, ALCOHOL, MEDICATION. Do not operate chuck or lathe while under the influence of drugs, alcohol, or any medication.
-
Page 9: Pro-Tek G3 Chuck - Types
PRO-TEK G3 Chuck – Types There are three models of the PRO-TEK G3 Chuck to meet various wood turning requirements. Please check the contents of your box to ensure you have the model intended to purchase. Note: Inserts, accessories, jaw sets etc. are fully interchangeable between the NOVA G3, SuperNOVA, SuperNOVA , Titan III, PRO-TEK G3 and PRO-TEK SuperNOVA2 Chucks. -
Page 10: Nova Chuck Inserts
NOVA Chuck Inserts Below is the list showing the full range of NOVA chuck inserts that are currently available, for additional information on NOVA inserts please see our website teknatool.com. Thread/ Thread Code Description Bore Thread Pitch Standard Note Direction... -
Page 11: Pro-Tek G3 Chuck Parts View
PRO-TEK G3 Chuck Parts View... - Page 12 REF# QTY. PART# DESCRIPTION 48206 Chuck Body Insert Thread 48239 Chuck Body 1” 8TPI 1359011 Chuck Body M33 ASR Eurolock 1359010 Sliding T-Handle 23109 Scroll ring right hand 23051 Jawslide #1 23103 Jawslide #1 for M33 ASR Eurolock 23052 Jawslide #2 23053 Jawslide #3 23054...
-
Page 13: Operation Of The Chuck
Close Mounting the jaws onto the chuck The PRO-TEK G3 chuck is supplied with a set of PRO-TEK 50mm jaws (#6075). The jaws must be securely fastened for the chuck to serve its function correctly. Mounting procedure of the jaw applies to all NOVA accessory jaws. -
Page 14: Removing Jaws From The Chuck
NOVA Star Head T-bar handle supplied. Removing jaws from the chuck Simply remove the jaw mounting screws by using the supplied NOVA Star head wrench to dismount the jaw segments from its jaw slides. Tip: There may be occasions where the jaw segment seizes on the jaw slide which poses difficulties when attempting to remove the jaw slides by hand. -
Page 15: Mounting The Chuck Onto A Lathe
There are two configurations available for the PRO-TEK G3 Chuck: • Insert model - Requires an insert adapter for chuck to be mounted on the lathe. See full list in this manual of the NOVA (lathe spindle thread) insert adaptors available. - Page 16 NOVA Chuck Spanner 4. Place the red thread protector washer into the M6 threaded hole indicated in the image. Then wind the M6 grub screw in position and tighten with 3mm Hex head wrench (provided) which prevents the chuck from loosening from the...
-
Page 17: Mounting The Chuck Using The Asr Eurolock Locking Ring
Mounting the chuck using the ASR Eurolock locking ring The M33 version NOVA lathes and chucks have a special locking coupler to prevent the chucks from coming loose and detaching from the lathe spindle. The ASR Eurolock locking ring is exclusive to the M33 version lathes and chucks. -
Page 18: Screw Chuck - Safe Lock Woodworm Screw
Screw chuck – Safe Lock Woodworm Screw The Safe Lock Woodworm Screw (screw chuck) provides a convenient method for holding a bowl blank to cut a recess or spigot to mount on an accessory jaw. The accessory jaw segments must be properly mounted beforehand to use the Safe Lock Woodworm screw. -
Page 19: To Use The Safe Lock Woodworm Screw On A Workpiece
To use the Safe Lock Woodworm screw on a workpiece 1. Ensure the workpiece surface facing the jaw segments that is flat as 8mm diameter possible. Hole. 19mm deep 2. Drill an 8mm(.31”) diameter hole at approximately 19mm(0.74”) deep into the work piece 3. -
Page 20: Forming A Mortis/Recess Or Tenon/Spigot
Forming a Mortis/Recess or Tenon/Spigot There are two main types of technique used to hold a workpiece onto the chuck: Tenon (Spigot) and Mortis (Recess). In either case, to form a dovetail in the mortis/recess or on a tenon/spigot, the workpiece must be securely mounted on the lathe with a woodworm screw (Or equivalent such as a faceplate or between centres). -
Page 21: Forming A Mortis/Recess
75~80degrees (one side) is recommended for better gripping strength and safety. A dovetail profiled mortis/recess to match the NOVA jaws can be easily created by using the NOVA dovetail chisel however a dovetail can be formed with any other appropriate type of chisels. -
Page 22: If You Do Not Own A Nova Dovetail Chisel
Move the chisel forward and out to form the recess to the required diameter and depth. Note: FOR SAFETY REASONS NOVA STRONGLY ADVISES AGAINST USING ANY OTHER TOOL APART FROM THE NOVA DOVETAIL CHISEL AND SKEW SCRAPER CHISEL. Recommended Diameter of the recess The suitable mortise/recess diameter is dependent on the accessory jaw that is mounted on the chuck. - Page 23 The mortis/recess depth should always be slightly shorter than the height of the mounted jaws. The dovetail profile on a recess is used to lock the workpiece on the chuck when the jaws are expanded to hold the workpiece. This natural locking action...
-
Page 24: Forming A Tenon/Spigot
The maximum speed allowed for a mortis/recess varies with the type of intended operation. This would mostly be based upon the user experience of the user, size of material being turned, quality of the material being turned and how balanced the piece is. -
Page 25: Recommended Diameter For The Tenon/Spigot
Safety Warning: Thoroughly inspect the wood for splits or weaknesses, especially around the tenon/spigot area, before mounting the workpiece onto the chuck. The spigot will be the only area of contact when doing free end turning. Never proceed on turning the wood if any weaknesses are found on the wood. -
Page 26: Troubleshooting
Troubleshooting Below shows a table listing all the possible issues with the PRO-TEK G3 chuck: Fault Solution 1. Check insert thread and chuck body thread are free from damage. Insert jams when partially 2. Check insert has engaged with chuck body thread threaded into body correctly. - Page 27 If the jaws are still running out of true, use a dial gauge to measure the radial and axial runout of the jaws when it is mounted on the chuck properly. The runout should be measured between the ranges of the following: 1.
-
Page 28: Chuck Runout Inspection Procedure
This is a common problem with fixtures on a lathe. To help prevent it try a plastic or fiber washer between Chuck jams on lathe insert/chuck and spigot shoulder of spindle. Greasing of spindle insert face and spindle can also help. Note: Use of plastic spindle washers could affect accuracy. -
Page 29: Equipment Required
Note: The tolerances specified below is only applicable to NOVA lathes. Lathes from other manufacturers may have different tolerance standards therefore it is the best to contact the lathe manufacturer to confirm the spindle tolerances. - Page 30 Measure the axial runout of the spindle itself by: Locate the DTI on the front face of the spindle as shown on the image. Spin the lathe by hand runout measurement should be ranging between: -0.02mm ~ +0.02mm (-0.00079 ~ +0.00079in) Any reading exceeding this value will be exceeding the standard tolerances.
- Page 31 Test Method Image Number Measure the radial runout of the attached faceplate by: Locate the DTI perpendicular to the spindle rotation axis as shown in the image. Spin lathe by hand. The runout measurement should be ranging between: -0.15mm ~ +0.15mm (±0.006in) Any reading exceeding this value will be exceeding the standard tolerances.
- Page 32 Jaw Inspection *This process will be identical for any NOVA chucks and jaws* The most common cause for a jaw to run out of true is when the jaws are not mounted correctly. Before the runout inspection, make sure the jaws are properly mounted on the chucks by following the instructions of how to properly mount the jaws onto the chuck shown in this manual.
-
Page 33: Pro-Tek G3 Chuck Maintenance
This section introduces the procedures on how to assemble and disassemble the PRO- TEK G3 chuck for maintenance. Regular maintenance is essential to ensure maximum performance for any mechanical devices including the PRO-TEK G3 chuck. Attempt to clean and lubricate the chuck components as the first step if the chuck feels / has become stiff to operate. -
Page 34: Removing The Chuck From The Lathe
Removing the chuck from the lathe Note for insert type chucks: After a long time, the chuck inserts tend to become stuck/ seized onto the chuck body. It is recommended to remove the chuck body from the insert while the chuck is mounted onto the lathe spindle. - Page 35 Turn the chuck insert Counter- clockwise with the 1 ½” spanner to remove the chuck insert from the spindle.
-
Page 36: Disassembling The Pro-Tek G3 Chuck
Disassembling the PRO-TEK G3 chuck Safety Note: Remember to wear safety glasses when dealing with circlips as it poses a potential risk of flying upwards when it slips off from the circlip pliers. Remove all accessory jaw segments prior to the disassembly process. -
Page 37: Parts To Clean And Inspect On The Disassembled Chuck
Tip the chuck upside down as shown in the image to remove the scroll ring. Note: Use the 3mm Hex key and push out the scroll ring through the jaw slide ways if the scroll ring is seized onto the chuck body. Slide out all of the jaw slides by hand complete... -
Page 38: Reassembly Of The Pro-Tek G3 Chuck
Reassembly of the PRO-TEK G3 chuck Safety Note: Remember to wear safety glasses when dealing with circlips as it poses a potential risk of flying upwards when it slips off from the circlip pliers. Step Image Description Apply grease onto surfaces... - Page 39 Insert the jaw slides back into the jaw slideways of the chuck body. Ensure the jaw slides are inserted in a Counter- Clockwise order. Note: There is no dedicated slot assigned to each of the jaw slides. Position the jaw slides in the middle to form a small square at the...
- Page 40 Note: Scroll ring will fall into place when it engages with jaw slide teeth. If the scroll ring is not falling into place, check to see if the jaw slides are all aligned properly in the centre. Secure the scroll ring by reinstalling the circlip.
-
Page 41: Go To Teknatool.com To Learn More About Our Full Assortment Of Accessories
WARRANTY: This NOVA product is backed by a warranty period of 6 years from the date of purchase. Teknatool International hereby agrees to make repairs or replace components without charge for any defects due to faulty material or workmanship, provided that;...
Need help?
Do you have a question about the PRO-TEK G3 and is the answer not in the manual?
Questions and answers