King Canada 48260 User manual

Brand: King Canada

Model: 48260

Type: User manual

King Canada 48260 is a high-quality woodturning chuck designed for a range of woodholding modes. It features a chuck key that locates easily and quickly into the gearing mechanism, delivering outstanding grip with little effort. Moving the key clockwise expands the jaws outwards (expansion), and moving the key anticlockwise contracts the jaws inwards (contraction). The chuck has a built-in safety feature that prevents the jaws from becoming dislodged, and it is compatible with all Teknatool accessory jaws.

ANNIVERSARY BUNDLE

BUNDLE D’ANNIVERSAIRE

TEKNATOOL INTERNATIONAL Ltd.

www.teknatool.com

SKU: 48260

Teknatool International Ltd, PO Box 305378

Triton Plaza, North Shore 0757,

Auckland, New Zealand

PH: +649 477 5600 FAX: +649 477 5601

Email: [email protected]

Website: www.teknatool.com

Thank you for purchasing your Nova G3 Chuck Anniversary Bundle - The latest

addition to our Woodturning Chuck range. We are confident that it will be a great

aid towards fast workholding and enhance your woodturning capablity. The Nova

G3 chuck is designed for a range of woodholding modes while being quick and

easy to use.

FOR YOUR SAFETY

PLEASE READ & UNDERSTAND THIS INFORMATION BEFORE USING YOUR

NOVA G3 CHUCK.

DANGER: THIS CHUCK IS CAPABLE OF CONTRIBUTING TO SERIOUS

INJURY, AS WITH ANY OTHER POWER TOOL ACCESSORY, IF USED

IMPROPERLY ON THE LATHE.

Before using the Nova G3 chuck and accessories, read and understand this

instruction manual and the lathe owner’s manual. If you do not have a manual,

contact the supplier of your lathe to obtain one before using the lathe and Chuck.

User must be professionally trained to use this chuck. Vocational school courses

recommended. As with other chucking methods, an extremely cautious and

sensible approach is necessary. With the Nova G3 Chuck it is not possible to give

exact directions as to the amount of tightening pressure required for workholding.

Follow closely strict guidelines in this manual for different jaw types on wood

blank diameters and length, plus turning speed.

BEFORE USING THE NOVA G3 CHUCK MAKE SURE THAT -

• EYE PROTECTION WHICH COMPLIES WITH CURRENT ANSI STANDARD

Z87.1 (USA) IS WORN. WE RECOMMEND THAT A FULL FACE SHIELD BE

USED AT ALL TIMES.

• Chuck is properly secured on lathe spindle. Follow mounting instructions for

your lathe for faceplates and other spindle fixtures.

• For safety, DO NOT ROTATE CHUCK UNDER POWER WITHOUT WOOD

BEING GRIPPED.

• WARNING: 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.

SAFETY

Consult your lathe manual or lathe information plate for speed guidelines.

• DO NOT ATTEMPT TO USE THE CHUCK UNLESS THE LATHE SPEEDS

ARE KNOWN, YOU MUST STRICTLY FOLLOW THE MAXIMUM SPEED

LIMITS SET OUT IN THE OPERATING SECTION OF THIS MANUAL.

DO NOT EXCEED THEM UNDER ANY CIRCUMSTANCES.

• EXAMINE WOOD CAREFULLY. ONLY MOUNT WOOD THAT IS SOUND, If

any cracks, splits, or weakness is found in wood - DO NOT MOUNT ON

CHUCK. DO NOT MOUNT ANY WOOD THAT IS LIKELY TO BREAK UP

DURING TURNING (E.G. ROTTEN OR SPONGY WOOD). DO NOT USE

POORLY JOINTED or LAMINATED WOOD.

• Make sure wood is clamped firmly. Follow mounting instructions for different

gripping modes and jaw types. In the expansion mode do not use undue force

or jaws may split the wood.

• Do not exceed maximum guidelines in this manual for wood blank diameters

or lengths set out in this manual for different modes and jaw types.

DO NOT USE WITH ANY COPYTURNER OPERATIONS.

• Check wood is securely held in chuck, before operation. Check grip by

vigorously wrenching wood blank back and forth. If any loosening occurs,

re-examine holding area for adequate grip (Following mounting guidelines) and

any damage to holding area. Rotate manually to make sure of clearance before

switching power on.

• WARNING: FOR SAFE OPERATION

IT IS RECOMMENDED THAT TURNING BE CARRIED OUT

WITH JAW SLIDES NOT EXTENDING BEYOND THE CHUCK

BODY. HOWEVER THE JAW SLIDES CAN EXTEND ABOUT

6.35MM (1/4”) BEYOND THE BODY OF THE CHUCK TO GIVE A

WIDER RANGE OF EXPANSION, IF REQUIRED. EXTRA

CAUTION MUST BE EXERCISED WHEN TURNING WITH JAW

SLIDES EXTENDING BEYOND THE BODY OF THE CHUCK.

• Irregular or out of balance stock needs to be turned at the slowest possible

speed until it is in balance. For use on outboard/left-hand rotation - MAKE

SURE INSERT IS SECURELY LOCKED WITH GRUBSCREW BEFORE USE.

Use only hand held woodturning chisels to shape wood being held in chuck.

• USE THE RIGHT CHISEL FOR THE JOB AND DO NOT FORCE TOOLS. Use

safe and commonly approved chisel techniques. Wherever possible stand to

one side of the revolving wood.

SAFETY, ASSEMBLY & OPERATION

• WEAR PROPER CLOTHING. Do not wear any loose clothing, neck ties, gloves,

bracelets, rings or other jewellery that could get caught in moving parts. Wear

protective hair covering to contain long hair.

• Do NOT operate chuck or lathe while under the influence of DRUGS,

ALCOHOL or any MEDICATION.

• KEEP CHILDREN AND VISITORS AWAY. All children and visitors should be

kept safe distance from the work area.

Make workshop childproof with padlocks, master switches, or by

removing starter keys.

OPERATION- FITTING CHUCK TO LATHE

Check that the chuck thread specification matches the lathe spindle thread you

have. This is important for accuracy. The chuck body must contact an accurate

will run true. If further modifications are needed (e.g. spacer) these are the

responsibility of the user. A good check is to see whether it screws home the same

as a faceplate or similar spindle fitting.

DO NOT USE UNLESS CHUCK IS PROPERLY FITTED TO SPINDLE.

NB: SOME FORM OF LOCKING MUST BE USED IF THE LATHE IS CAPABLE

OF REVERSE MODE.

Chuck operation

Adjustment: The Nova G3 chuck features a chuck

key, which locates easily and quickly into the

gearing mechanism. The high powered gearing

delivers outstanding grip at little effort. Moving in a

clockwise direction will expand the jaws outwards

(expansion), and moving the key in an anti-

clockwise direction will contract the jaws inwards

(contraction). For example, move the handle in an

anti-clockwise direction to move the jaws to clamp a

workpiece inside the jaws, and then move the

handle in a clockwise direction to release the work.

ASSEMBLY & OPERATION

AUTO STOP FEATURE

The Nova G3 has a built-in safety feature which prevents the jaws slides from

becoming dislodged from the chuck. The auto stop feature is first in the industry

doing away with shearing screws.

MOUNTING & DISMOUNTING OF JAWS

The Nova G3 chuck comes with no jaws attached. With the many jaws available

it is very easy to use your single chuck for a very wide range of applications. All

jaws in the Teknatool range for the Nova G3 are secured and attached the same

way.

Attaching Jaws- To mount the jaws to the Nova G3 chuck is another easy

process. Firstly wipe clean all jaw slides, especially the contact surfaces. Repeat

this with all four jaws you wish to attach. Jaw slides are numbered one to four

and have a corresponding jaw - of the same number. This may be represented

by dots if numbers are not present, i.e. 3 dots = #3. Place a jaw on its correct

jaw slide and position into the groove (location ring out from the jaw into the

groove of the jaw slide). The first few times, you may need to GENTLY tap the

jaws into the locater slot with a block of wood or plastic mallet. Place M6X10

counter sunk screws in jaws and screw them to finger tightness. When both

screws are in position and tight, then back off half a turn. Repeat this to the

remaining three jaws. Now using the Chuck key, scroll all jaws towards middle

until they all come together. Now with all jaws touching and equal pressure on

each, tighten all screws up. This will eliminate any run out. Ensure that there are

no gaps between the jaws. If a gap does appear, it will probably be due to a jaw

being placed on its wrong number (e.g. a #2 jaw on a #3 jaw slide).

To Remove Jaws- Simply using the 4mm Allen key supplied, unscrew all M6

counter sunk screws (there are eight of them). The jaws will come away once

their screws are released. Sometimes due to dust particle build up (after heavy

turning) the jaws may need a very light tap with a plastic hammer to dislodge

them.

IMPORTANT NOTE:

Accessory Jaws: Although the Nova G3 is compatible with all the Teknatool Accessory Jaws, it is not

recommended that the larger accessory jaws be used, as they will hold work to larger capacities than is

recommended with the Nova G3. For instance, we do not recommend that the following accessory jaws are

used with the Nova G3: 130mm Jaw (JS130N),PowerGrips (PJSN), Titan PowerGrips (13029) Moreover, it

is not recommended that work exceed a diameter of 14” and a depth of 5” with this chuck.

ASSEMBLY & OPERATION

DOVETAIL OPERATION

Expansion of the jaws into a recess- This function is for bowl and platter turning

where the projection (depth) of the wood blank is not too great i.e. up to 100mm

(4”). Characteristically these items have a parallel wood grain. IT MUST NOT BE

USED FOR ANY LONG WORK (OVER 100mm or 4”) AS THERE WOULD BE

GREAT DANGER OF WOOD TEARING OUT AND DISLODGING FROM

CHUCK.

Instructions below apply to the standard 50mm (2”) jaws but the general technique

is the same with other accessory jaws. However, the maximum size of wood blank

that can be mounted, the maximum turning speed and recess size varies with the

different accessory jaws. Consult specific instructions included for each jaw set.

This strong holding method, using the standard 50mm (2”) jaws, you can turn

bowls up to 350mm (14”) in diameter. DO NOT EXCEED 600 RPM WITH THIS

OPERATION. OUT OF BALANCE STOCK MUST BE TURNED AT THE

SLOWEST SPEED POSSIBLE.

50mm jaws

- Any recess can be turned between 50mm (2”) and 70mm (2-3/4”)

diameter. For smaller lids and thin platters (not exceeding 150mm or 6” diameter)

only a shallow recess of around 3mm (1/8”) is necessary. It will be matter of

gaining experience as to what combinations and sizes will best suit.

USING THE WOODWORM SCREW

The woodworm screw supplied with the Nova G3 chuck is purpose designed for

screw chucking. It is a cylindrical screw which maintains its full holding power

along the whole length, unlike normal tapered screws. The thin thread form is spe-

cially designed to cause minimum damage to wood fibers. They grip better than

screws because there is a larger volume of undamaged wood retained within the

screw.

The woodworm screw is made complete with the boss section in one piece. The

woodworm screw is to be used with the jaws remaining on the chuck. This facility

is very convenient for remounting work directly onto the jaws after the screw is

removed.

To convert to this operation, place the boss section into the centre of the chuck

and close jaws into the slots.

ASSEMBLY & OPERATION

USING THE WOODWORM SCREW continued...

BEFORE FINAL TIGHTENING MAKE SURE THAT THE FRONT OF THE BOSS

SECTION OF THE SCREW IS SEATED BEHIND AND AGAINST THE 50mm (2”)

JAWS. This will prevent any tendency for the boss section to creep forward when

the screw is being used.

NB: Recommended pre-drill size is 7mm (9/32”) for soft woods and 8mm

(5/16”) for hard woods.

The front face of the jaws have been machined to provide an accurate backing

surface. This is quite an advantage, providing a much tighter fit and wider

tolerance for irregularly faced stock. This feature is also quite an advantage when

using the screw to mount a bowl for first stage bowl turning - forming the outside

of the bowl to be put straight onto the jaws (the screw is first removed) after the

recess has been formed.

The woodworm screws provides 15mm -1/2mm OR 39/64” (0.609”) of thread

beyond the jaws. Irregular, rough tree blanks (e.g. small sections of tree limbs) not

exceeding the above sizes can be held quite firmly BUT caution must be exer-

cised. Check for adequate contact.

DO NOT USE THE SCREW FOR VERY LARGE WOOD BLANKS.

It’s intended for small bowl and screw chucking work. The maximum capacity

which should be mounted on the screw is 250mm (10”) diameter X 100mm (4”).

DO NOT EXCEED 600 RPM FOR THIS OPERATION, and use tailstock with a live

centre for support.

FORMING RECESS

The jaw dovetail has been designed for use with a standard skew scraper. This

chisel will make a recess to the angle required. FOR

SAFETY REASONS WE STRONGLY ADVISE

AGAINST USING ANY OTHER TOOL. A profile of

this chisel is shown. It is best to work with a tool,

which is already ground, to the correct angle. All that

is necessary then is to keep the leading edge of the

chisel flat on the wood, moving forward and out to

form the recess to the required diameter and depth. Mount bowl blank on screw

as described in previous section. It may be convenient to first mark out with a pen-

cil, a circle on the bowl blank. To mark out the recess diameter with pencil, hold

pencil point to desired radius, supported on the toolrest. Then revolve blank by

hand thus creating a pencilled circle. However, as specified above, any recess

diameter can be made between 50mm (2”) - 75mm (3”) so exact sizing of the

recess is unnecessary.

ASSEMBLY & OPERATION

FORMING RECESS continued...

Before scraping out the recess, slightly hollow out the centre of the bowl blank with

a bowl gouge or round nose scraper. The purpose is to relieve the centre so that

when the recess is scraped out only half the chisel

edge needs to be used. We recommend this to reduce

tearing of the wood by scraping action; and to make

the recess a little more finished to give a better effect

to the overall bowl. Extra embellishments can also be

made to the recess to enhance the bowl. After the

recess is finished and the outside of the bowl is turned

to shape, wind bowl back off screw. Bowl blank is now ready to be reversed into

the jaws. Expand the jaws into the recess. When the jaws are expanded out into

the recess, screw the wood blank gently back and forth to make sure it is seated

properly on the bottom face of the jaws.

WARNING: MAKE SURE THE JAWS ARE SEATED PROPERLY IN THE

RECESS AND THAT THE BOWL IS NOT INCORRECTLY RIDING ON THE FLAT

SHOULDER SECTION OF THE JAWS BEHIND THE DOVETAIL. THIS COULD

LEAD TO THE BOWL DISLODGING FROM CHUCK. LOOSEN JAWS AND

REMOUNT CORRECTLY.

Now give a few gentle raps with the end of a chisel handle or wooden mallet

around centre of bowl. Refer to Chuck Operation. Refer again to safety before

operation.

SPIGOT OPERATION

This is where the jaws contact around a wooden spigot for grip. This function is

mainly for box, goblet and vase turning, that is, end grain items with a fair degree

of overhang. This situation is one of the most difficult to provide secure holding no

matter what fixing method is used.

EXTREME CAUTION WITH THIS OPERATION MUST BE EXERCISED. DO NOT

EXCEED 850 RPM FOR THIS OPERATION. If used properly, the Nova G3 Chuck

provides a very powerful and secure grip in this mode.

ASSEMBLY & OPERATION

SPIGOT OPERATION continued...

Instructions below apply to the standard 50mm (2”) jaws but the general spigot

technique is the same for other jaw types. However, maximum turning speed and

recess size varies with different jaw types. Consult accessory jaw instructions.

With the standard set of 50mm (2”) jaws a maximum size woodblank of 100mm

(4”) diameter (NOT spigot size) by 150mm (6”) length can be turned. Square

timber of same length and between 40mm (1.5”) to 50mm (2”) and grip of all four

jaws into wood. MAKE SURE YOU HAVE AN ADEQUATE GRIP BEFORE

OPERATION by vigorously wrenching the limb mounted on chuck. If any

loosening occurs DO NOT PROCEED with operation. Repeat tightening

procedure and re-test grip.

SPIGOT SIZE:

Standard Jaws will grip a round spigot between 45mm (1-49/64”) to 65mm

(2-5/16”) approx. Square timber between 40mm (1-37/64”) to 50mm (2”) square

approx.

Jaw slides only

- With the 50mm (2”) add-on jaws removed, the jaw slides will grip

either round or square timber down to 8mm (5/16”). Length limits are the same for

spigot work. Small work not greater than this diameter can be turned at a speed

NOT EXCEEDING 1800 RPM. Larger work held in the jaw slides should NOT

EXCEED 850 RPM.

FORMING SPIGOT:

When selecting wood make sure it is sound without splits or weakness - especially

around the area where the spigot is to be formed. REMEMBER WITH FREE END

TURNING, THIS IS THE ONLY AREA FOR GRIP. IF ANY WEAKNESS IS

FOUND, DO NOT PROCEED. Mount wood between centres and turn the spigot

area. Make the spigot as parallel as possible to maximize the efficiency of the

clamping action. Only approximate sizing of the spigot is necessary, as the jaws

will accommodate a wide range of spigot diameters within the spigot limits stated

above. The 50mm (2”) standard jaw has a thin lip (or shoulder at the front face)

which is designed to bite into the timber as the jaws are tightened. DO NOT CUT

A RECESS FOR THE LIP TO FIT INTO, AS THIS WILL REDUCE GRIPPING

POWER.

ACCESSORY JAWS & OPERATION

ACCESSORY JAWS TURNING SPEED GUIDE

The following guide sets out the recommended maximum speeds for each of the

accessory jaws. Remember, excessive speed is a serious lathe hazard – give

careful consideration to the speed you use:

1. The bigger the work diameter – the slower the speed used.

2. Out of balance/work being roughed out must always be turned at the slowest

speed possible.

3. Speeds may differ from those in your lathe manual. If there is a difference, use

the SLOWER of the two recommended speeds.

20 MM JAW SET (Nova Sku: JS20N)

MOUNTING THE JAWS– See “Mounting the Accessory Jaws” in this manual.

PARTS PROVIDED– Four jaw segments. NOTE: There is only one screw posi-

tion for each of the 20mm jaw segments. Only one screw is necessary for secure

fastening of jaw segments because the jaw is designed for small turning work.

OPERATIONAL MODES

a. Expanding Dovetail Jaws

Using the 20mm jaws, bowls up to 150mm (6”) in diameter by 50mm (2”) depth

can be turned.

THIS METHOD MUST NOT BE USED FOR ANY WORK LONGER

THAN 50mm AS THERE WOULD BE GREAT DANGER OF WOOD

TEARING OUT OF THE CHUCK. DO NOT EXCEED 684 RPM

IN THIS MODE. OUT OF BALANCE STOCK MUST BE TURNED

AT THE SLOWEST SPEED POSSIBLE.

JAW TYPE EXPANDING CONTRACTING

20mm Jaw Set- 684 RPM 1440 RPM

50mm Jaw Set- 684 RPM 1020 RPM

100mm Jaw Set- 684 RPM 684 RPM

Mini Cole Jaw Set- 600 RPM 600 RPM

ACCESSORY JAWS & OPERATION

20 MM JAW SET (Nova Sku: JS20N) continued...

Recess: Maximum recess depth of 6.5mm can be

used. Any recess diameter can be turned between

23.5mm (15/16”) and 46mm (1-13/16”). The optimum

recess diameter is 25mm (1”). At this diameter, full

contact of jaws with recess is achieved. As the recess

diameter is increased above 20mm, less jaw contact

is made. This needs to be kept in mind when

considering the recess depth and the size of the

wood blank being mounted. Increase the recess

depth to maximum if a recess diameter in excess of 20mm is used.

b. Square Blanks (Contracting Action)

These jaws can grip a square spigot between approximately 12mm (31/64”) to a

maximum of 25mm (1”).

DO NOT EXCEED 1440 RPM IN THIS MODE MAXIMUM LENGTH

Wood blanks up to 125mm (5”) length by 25mm (1”).

c. Spigot Mounting (Contracting Action)

Use wood blank size up to 125mm (5”) length by 25mm (1”) diameter.

DO NOT EXCEED 1440 RPM FOR THIS OPERATION

Spigot Size: Minimum spigot size is 8.5mm (23/64”) up to a maximum

spigot size of 25mm (1”). Spigot Depth: Always use the maximum spigot

depth which is 19mm (3/4”).

d. Special Function

For lathes with hollow spindles, Teknatool Chucks with the 20mm jaws mounted,

could accept long lengths of round dowel below the 20mm size, which could be

fed through the lathe spindle and through the chuck. This means that multiple

turnings could be achieved by simply advancing the dowel through the centre of

the chuck and securing with the jaws, turning, parting off, and then advancing the

next piece through. Do not allow dowel to protrude past spindle on the outboard

end.

OPTIONAL ACCESSORIES

Not applicable for this jaw set.

The 20mm jaw set is not designed for mounting to the Cole/Mini

Cole Jaws Sets. DO NOT USE WITH COLE OR MINI COLE JAW SETS.

ACCESSORY JAWS & OPERATION

50 MM JAW SET (Nova Sku: JS50N)

MOUNTING THE JAWS– See “Mounting the Accessory

Jaws” in this manual.

PARTS PROVIDED– Four jaw segments

OPERATIONAL MODES

a. Expanding Dovetail Jaws

Using this method bowls of up to 310mm (12”) in diameter by 100mm (4”) in

depth can be turned.

THIS METHOD MUST NOT BE USED FOR ANY WORK LONGER

THAN 100MM AS THERE WOULD BE GREAT DANGER OF WOOD

TEARING OUT OF THE CHUCK. DO NOT EXCEED 684 RPM IN

THIS MODE. OUT OF BALANCE STOCK MUST BE TURNED AT

THE LOWEST SPEED POSSIBLE.

Recess: Maximum recess depth 6mm (1/4”). Any recess can be turned between

50mm (2”) and 75mm (3”) diameter. The optimum recess diameter is 50mm (2”).

Where ever possible keep your recess between 50mm – 60mm. Extra care must

be taken while turning with recesses above 60mm. YOU MUST USE THE

MAXIMUM RECESS DEPTH ON ALL RECESSES OVER 64mm (2.5”) diameter

OR ANY WORK WITH A DIAMETER OVER 150MM (6”). For smaller lids and

thin platters, not exceeding 150mm diameter, only a shallow recess of around

3mm (1/8”) is necessary.

b. Square Blanks (Contracting Action)

These jaws can grip a square spigot between approximately 40mm (1-9/16”) to

a maximum of 50mm (2”).

DO NOT EXCEED 1020RPM IN THIS MODE. Maximum length:Wood

blanks up to 150mm (6”) length by 100mm (4”).

c. Spigot Mounting (Contracting Action)

Use wood blank size up to 150mm (6”) length by 100mm (4”) diameter.

DO NOT EXCEED 1020RPM IN THIS OPERATION

Spigot Size: Minimum spigot size of 45mm (1-49/64”) up to a maximum

spigot size of 65mm (2-9/16”). Spigot Depth: The length of the spigot

area must not be less than 16mm (5/8”).

ACCESSORY JAWS & OPERATION

100 MM JAW SET (Nova Sku: JS100N)

MOUNTING THE JAWS– See “Mounting the Accessory Jaws”

in this manual.

PARTS PROVIDED– Four jaw segments.

OPERATIONAL MODES

a. Expanding Dovetail Jaws

Using this method with the 100mm jaws, bowls up to 360mm

(14”) diameter by 127mm (5”) depth can be turned. Any recess

can be turned between 97mm (3-13/16”) to 117mm (4-39/64”).

The optimum recess diameter is 97mm (3-13/16”). At this

diameter full contact of jaws with recess is achieved. As the recess diameter is

increased above 97mm, less jaw contact is made. This needs to be kept in mind

when considering the recess depth and the size of the wood blank being mount-

ed. Increase the recess depth to maximum if recess diameter in excess of

100mm is used. Recess: A full recess depth of 9mm (11/32”) is available.

THIS METHOD MUST NOT BE USED FOR ANY WORK LONGER THAN

127MM AS THERE WOULD BE GREAT DANGER OF WOOD TEARING OUT

OF CHUCK. DO NOT EXCEED 684 RPM IN THIS MODE.

b. Reverse Dovetail (Contracting Action)

There is a reverse dovetail to grip bowls with a foot mounting. Bowls/platters up

to 310mm (12”) can be turned. The optimum foot diameter is 85mm (3-11/32”).

Larger foot diameters can be used up to 92mm (3-5/8”), but above 90mm

(3-35/64”) the edges of the jaws can mark the wood. It is suggested that

masking tape be used to protect the foot from jaw marks. The maximum avail-

able foot depth is 12.5mm (1/2”).

DO NOT EXCEED 684 RPM IN THIS MODE.

c. Square Blanks (Contracting Action)

These jaws are not recommended for square blanks.

d. Spigot Mounting (with Reverse Dovetail)

A spigot using a reverse dovetail – same foot mounting procedure as in b. Wood

should be pre-machined to a cylinder (to optimise balance) with a diameter no

greater than 127mm (5”). DO NOT USE ANY EXTENSION OVER 120mm

(4-47/64”).

ACCESSORY JAWS & OPERATION

d. Spigot Mounting (with Reverse Dovetail) continued...

DO NOT EXCEED 684 RPM IN THIS MODE.

Spigot Depth: Always use maximum spigot depth of 12.5mm (1/2”).

e. False Wooden Jaws

Custom wooden jaw segment mounted on 100 or 130mm jaws. No responsibility

can be accepted for the user’s own adaptations of this custom facility. It is the

user’s responsibility to ensure that work is safely mounted.

Provision is made for the 100mm jaws to take custom false wooden jaws. There

are two screw positions in each jaw slide. These are made to accept a M6 by 30

Allen Head Cap Screw.

METHOD:

Careful consideration is needed as to the type of holding situation that is required

for the false wooden jaws. This will influence jaw diameter and design. The

following information is simply intended as a guideline. Turn a cylinder between

centres to the approximate diameter required for the false wooden jaws. A cylinder

of about 88mm (3-15/32”) will provide for good expansion of false wooden jaws.

However any diameter between 87mm (3-27/64”) and 100mm (4”) can be used.

SCREW DEPTH:

Use M6x30 screws. When the screws are fully screwed into the jaws there is a

height of 24mm of screw under the head. Note: Screws can only be screwed in to

a depth FLUSH with the underside of the jaw. IF SCREWS CONTACT FACE OF

THE CHUCK THEY WILL PREVENT JAW MOVEMENT. Provision needs to be

made for the screw head. Countersunk diameter is 10mm (25/64”). Coun-

tersunk depth depends on the length of the wooden blank. However the holes

need to be countersunk to a depth such that the screw is fully home, flush with the

underside of the jaw. It is helpful to bore the holes slightly oversize so there is

some adjustment.

SCREW POSITION:

Suggested method – Open jaws up to accept the wooden blank. Remove blank.

Use wooden blank to trace a circle on a piece of thin cardboard. Place cardboard

on the mounted jaws and trace out the screw position. Use a pin punch or

compass point to mark out the centre of the holes. Now place cardboard form over

the end of the wooden blank and mark hole position. There are two hole

positions on each jaw segment. Use two screws per segment to secure each false

wooden jaw.

OPTIONAL ACCESSORIES:

Fastening Kit for False Wooden Jaws Code: F100N

ACCESSORY JAWS & OPERATION

MINI COLE JAWS (Nova Sku: 6006)

PARTS PROVIDED

4 Diecast Cole Jaw Segments

8 M6x20 Countersunk Screws

8 M6x16 Cap Screws

8 Rubbers

IMPORTANT INFORMATION!!!!

METHOD OF FITTING FOR FIRST TIME OF USE

Extreme care should be taken. The locator ring on the back of the Cole Jaws

provides the accuracy of location. Care must be taken that this locator ring is not

damaged when the jaws are placed in the jaw slides. With the chuck body flat

on a bench, carefully place each Cole Jaw segment in line with the holes. Now

put screws in only a little way so that they are loose but engaged with the thread-

ed holes of the jaw slides. Remember to first lightly oil or grease screws under

heads before use to prevent screws locking onto jaw. Then gently rock the Cole

Jaw segment from side to side until the locator ring on the jaw segment is eased

properly in the groove of the jaw slide. See illustration next page. Look under jaw

segment to make sure the ring is properly seated in jaw slide groove. Check for

the gap between jaw slide and Cole Jaw segment – there should be no light

showing.

IT SHOULD NOT BE RIDING UP ON THE EDGE OF THE GROOVE!

Now the screw can be fully wound in. Use this method both screws should first

be wound down until heads just touch the jaws. Then starting with the inside

screw – wind it 1/4 to 1/2 a turn. Similarly wind outside screws until screws are

fully home. DO NOT OVERTIGHTEN. Repeat procedure on all four segments.

SPECIAL INSTRUCTIONS FOR COLE JAW RUBBERS

ACCESSORY JAWS & OPERATION

MINI COLE JAWS (Nova Sku: 6006) continued...

MOUNTING JAWS FOR ALL TEKNATOOL CHUCKS

See “Mounting the Accessory Jaws” in this manual.

Note: The four Cole Jaw diecast segments provided are all identical and so they

can be mounted in any sequence. Hence they are not numbered.You may find

it convenient to number them 1 – 4 in clockwise sequence when you have them

mounted on the chuck so that they can be put back in the same sequence each

time. The standard mounting screws that come with the Teknatool chucks can

be used for this purpose. If you wish, extra screws can be obtained by purchas-

ing the “Nova Fastening Spares Kit.” Check there is no light between jaw slides

and add on jaw segments or that one or more segments is not higher or lower

than the others. If this is the case, repeat the procedure as above.

WARNING

• DO NOT EXCEED 600 RPM WITH COLE

JAWS OR 800 RPM WITH MINI COLE

JAWS IN ANY OPERATIONAL MODE.

• OUT OF BALANCE STOCK MUST BE

TURNED AT THE SLOWEST SPEED

POSSIBLE BELOW 600RPM.

• DO NOT ATTEMPT TO USE THESE JAWS

IF YOUR LATHE DOES NOT HAVE A

USABLE SPEED OF 600 RPM OR BELOW.

• MAKE SURE THAT JAW SLIDES DO NOT PROJECT BEYOND CHUCK

BODY WHEN JAWS ARE EXPANDED.

• USE SPECIAL OPTIONAL WOODWORM SCREW DESIGNED FOR COLE

JAWS. THE NORMAL INCLUDED WOODWORM SCREW CAN NOT BE

USED WITH THE COLE JAWS.

• THE 20MM AND PIN JAW SET CAN NOT BE MOUNTED ON THE MINI COLE

OR COLE JAWS.

ACCESSORY JAWS & OPERATION

MINI COLE JAWS (Nova Sku: 6006) continued...

OPERATIONAL MODES

a. Contracting And Dovetail Modes

Both the contracting and dovetail modes are available when the other accessory

jaw sets (50mm, 75mm, 100mm) are mounted onto the Cole Jaws and used in the

normal way. The longer M6x20 screws provided with the Cole Jaws must be

used to secure the optional jaws to the Cole Jaws. Follow the usual operational

directions and safety requirements for the particular jaw set used (e.g 50mm,

75mm, 100mm). THESE INSTRUCTIONS AND SAFETY REQUIREMENTS CAN

BE FOUND IN THIS MANUAL.

b. Re-Chucking Using The Mini Cole Jaw

The Cole Jaw segment can be mounted on the chuck by themselves without the

use of any other jaw sets. Normal M6x10 Countersunk screws provided with your

Teknatool chuck to mount the other accessory jaw sets can be used.

WARNING

DO NOT ATTEMPT TO USE THIS FACILITY TO GRIP BOWL BLANKS WHICH

HAVE NOT BEEN FULLY TURNED INSIDE AND OUTSIDE. THE

RE-CHUCKING FACILITY CANNOT BE USED AS A GRIPPING METHOD TO DO

MAJOR RESHAPING WORK OVER THE WHOLE OUTER SURFACE OF THE

BOWL. ALWAYS USE A CAUTIOUS AND CONSERVATIVE APPROACH. USE

CORRECT CHISEL TECHNIQUES TO AVOID CHISEL DIG-INS WHICH COULD

DISLODGE THE BOWL. DO NOT USE HEAVY CUTS WHICH COULD ALSO

DISLODGE BOWLS.

If you want to mount another accessory jaw set (50mm, 35mm, 100mm) onto the

Cole Jaws use the four longer M6x20mm screws provided. Note the 20mm jaws

and pin jaws are not designed for use with Mini Cole and Cole Jaws.

Only when both the inside and outside of the bowl have been turned (these

operations can all be performed with the Cole Jaws in conjunction with another

optional accessory jaw set) can the bowl be re-chucked to rework the bottom

(outside) surface. Bowls up to 240mm (9.45”) in diameter for Cole Jaws, and

ACCESSORY JAWS & OPERATION

MINI COLE JAWS (Nova Sku: 6006) continued...

bowls up to 171mm (6-3/4”) in diameter for Mini Cole Jaws, can be re-chucked

gripping the rim in the contracting mode. If re-chucking is required to achieve a

smooth under surface of the bowl, it is best to have previously held the bowl by

foot mounting (contracting mode) as it is much easier turn off a foot, rather than

for example, a recessed dovetail. Foot mounting method is best achieved with

the Step Jaw or 100m (Cole Jaws only) Jaw Set.

c. Mounting Bowls

There are several radial positions available. The assembled rubber stoppers

need to be fastened so that they are screwed in flush against the jaw surface.

They need to be equally spaced at the same radial position on each segment to

achieve an even gripping of the bowl. The rubber stoppers will grip around the

rim of the bowl and contract downward. Refer to the directions in this manual in

the contraction mode. Make sure the whole rim of the bowl is seated flush

against the jaw surface so that it is being well supported and evenly gripped.

WARNING

THE RUBBER STOPPERS ARE A CONVENIENT HOLDING METHOD BUT

MUST ONLY BE USED TO RE-CHUCK SMALL, LIGHTWEIGHT BOWLS UP

TO 250MM (10”) IN DIAMETER FOR COLE JAWS; 200MM (8”) FOR MINI

COLE JAWS. CUSTOM WOODEN JAW SEGMENTS (MOUNTED ON COLE

JAWS). NO RESPONSIBILITY CAN BE ACCEPTED FOR USERS OWN

ADAPTIONS OF THIS CUSTOM FACILITY. IT IS THE USERS

RESPONSIBILITY TO TAKE ALL CARE TO ENSURE THAT A SAFE

MOUNTING OF BOWLS IS ACHIEVED.

If larger or heavy bowls need to be re-chucked, then you must make your own

wooden jaw segments. These should be fastened onto each jaw segment using

two screw positions. Give careful consideration to the type of holding situation

that is required before false wooden jaws are made to ensure adequate gripping

is achieved.

King Canada 48260 User manual

King Canada 48260 User manual

King Canada 48260 User manual

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