WOLFF OGC-TAS User manual

OPERATORS MANUAL
CUSTOMER SERVICE 1-800-888-3832
Part # 13000
OOKAMI GOLD®
SCISSORS SHARPENING SYSTEM
Developed and manufactured in the USA
by Wolff Industries for sharpening
the world’s nest scissors and shears.
Revision 1/11/16

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BACKGROUND INFORMATION ON LEE WOLFF & WOLFF INDUSTRIES
1930 - 1996
In 1957 Lee Wolff, (Inventor of Twice as Sharp®) started a sewing machine sales and service business.
Fabrics and a complete line of sewing needs were added in 1963, and the number of employees grew to 25
to handle the volume. During those years, Lee did a great deal of scissors sharpening and repair and made
important modications on the available scissors sharpening equipment.
In 1971 Lee and Mary Wolff became the rst major importer and distributor of plastic handled scissors in
the United States. They started to manufacture sewing scissors in 1973 under the trade name of KNIP. A
U.S. patent was granted on the KNIP.
The scissors factory was sold to American Scissors Corp. in 1980 and moved to the south. Lee set up the
factory and innovated many new manufacturing processes. The July 1983 Consumers Reports rates the
American Scissors designed and produced by Lee Wolff as a best buy. He also designed a full line of unique
plastic handled scissors with interchangeable parts.
Lee worked on the perfecting of scissors sharpening equipment for many years. It is necessary to accurately
control the cutting angles, reduce burr formation during sharpening, and do deburring and micro-sharpening
as a nal process. This method produces scissors that are normally twice as sharp, hence the name Twice
as Sharp®. A United States patent has been granted as well as several foreign patents.
Wolff Industries has grown rapidly with many new products for scissors sharpeners. In 1990 a new tech-
nical department and additional equipment were added so that we will always be able to bring to you the
most advanced scissors sharpening equipment.
Technical support is available Monday through Friday 8:00 AM to 5:00 PM eastern standard time.
Call with your sharpening questions. If it is regarding a specific shear, please have the shear in
hand. If your question is regarding a problem with the sharpener please have the sharpener nearby.
WOLFF®, TWICE AS SHARP®, HIRA-TO® and OOKAMI GOLD®are registered trade marks of
WOLFF INDUSTRIES, INC. and may only be used in regard to items sharpened by using the equip-
ment and methods described in this manual. Any other uses are forbidden without written permission from
Wolff Industries, Inc.
Please send us any comments, suggestions, or newsworthy ideas, that we may include in our newsletter.
US Patent # 4,528,778 German Patent # DE3490065C2 Canadian Patent # 1 243 487

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TABLE OF CONTENTS
SUBJECT PAGE
Background, Technical Support, and Trademark Usage...........................................................2
Table of contents .................................................................................................................3
A-1-OGU conversion kit installation instructions ....................................................................4
Installing Diamond sharpening wheel ................................................................................4
Installing OOKAMI GOLD® polishing wheel .................................................................4
Part names for Scissors and Shears Sharpener .........................................................................5
Set up and safety .......................................................................................................................5
Machine maintenance ...............................................................................................................6
How to change the wheels ........................................................................................................7
Steps to sharpen OOKAMI GOLD® style convex shears
Step 1: Taking shears apart .................................................................................................7
Step 2: Installing the clamp.................................................................................................8
Step 3: Clamping scissors ...................................................................................................8
Step 4: Setting cutting angle ...............................................................................................8
Step 5: Sharpening each blade on the diamond wheel........................................................8
Step 6: Deburring ................................................................................................................9
Step 7: Polishing the blades ................................................................................................9
Step 8: Assembling the shears............................................................................................12
Step 9: Polishing the shears................................................................................................13
Step 10: Testing the shears...................................................................................................13
Step 11: Checking the set of the blades ...............................................................................14
Step 12: Balancing the shears ..............................................................................................15
Step 13: Sizing the blades ....................................................................................................15
Step 14: Matching the tips....................................................................................................16
Step 15: Cleaning and lubricating the shears .......................................................................16
How much to charge ................................................................................................................17
Special instructions for left handed shears...............................................................................17
Corrugating instructions...........................................................................................................18
Frequently asked questions......................................................................................................19
Convexing a bevel edge shear..................................................................................................21
Converting from 110 volt to 220 volt, with existing switch ....................................................22
Converting from 110 volt to 220 volt, with new switch ..........................................................23
Scissors and shears terms dictionary........................................................................................24
Parts included with the OOKAMI GOLD®sharpening system ..............................................29
OOKAMI GOLD®special tools..............................................................................................30
Parts list for clamps..................................................................................................................31
Parts list for OOKAMI GOLD®scissors sharpener................................................................32
Limited Warranty, Disclaimer, and Guarantee.........................................................................34

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OOKAMI GOLD®
Scissors Sharpening System
A-1-OGU Upgrade Kit Installation Instructions
NOTE: These steps are to install the A-1-OGU kit only. Go to safety instructions on page 8 for all other
systems. This conversion kit will t all the Twice as Sharp® Models or the Foley Belsaw #327. See how
to change the wheels on page 10.
Diamond Sharpening Wheel Installation:
The diamond wheel has been pretested at the factory. Follow the installation instructions to insure smooth
sharpening.
1. Remove the left hand wheel cover and three screws with a #2 phillips screwdriver.
2. Using a 3/4” wrench, hold onto the wheel with one hand and turn the wrench
clockwise (left handed thread) with the other hand.
3. Remove the nut, two anges and sharpening wheel and wipe the shaft clean.
4. Put the blue ange (supplied with the kit) on the shaft rst. Slide the diamond
wheel (supplied with the kit) on the shaft next to the blue ange. Put one of the
anges removed in step 3 on the shaft. Install and tighten the nut rmly (counter
clockwise).
5. Spin the wheel by hand. If side to side movement is more than about 1/8”, loosen
the nut and rotate the wheel about 900on the shaft. Tighten the
nut rmly and recheck the wheel for side to side movement.
Repeat this step until side to side movement is acceptable.
6. Replace the wheel cover and three screws.
OOKAMI GOLD® Polishing Wheel Installation:
The OOKAMI GOLD® polishing wheel has been broken-in
at the factory to save you time and ensure smooth running
(notice the edge is black or gray in color).
1. Remove the right hand wheel cover and three screws with a phillips screwdriver.
2. Using a 3/4” wrench, hold onto the wheel with one hand and turn the wrench counter
clockwise (right handed thread) with the other hand.
3. Remove the nut, two anges and bufng or honing wheel and wipe the shaft
clean.
Flange OOKAMI GOLD® Polishing Wheel Flange Right Hand Nut
Left hand Nut Flange Diamond Wheel Blue Flange

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4. Put one of the anges from step 3 on the shaft rst. Slide the OOKAMI GOLD® Polishing Wheel
(supplied with the kit) on the shaft next to the ange. Put the other ange removed in step 3 on the
shaft. Install and tighten the nut rmly (clockwise).
5. Replace the wheel cover and three screws.
PART NAMES FOR SCISSORS AND SHEARS SHARPENER:
SET UP AND SAFETY
Inspect machine for shipping damage. Look for
broken or bent parts. Notify freight carrier if dam-
aged. Assemble plastic eye shields as pictured. At-
tach to the machine with screws provided. NEVER
OPERATE MACHINE WITHOUT EYE SHIELDS
IN PLACE.
Bottom arm set is fastened to the machine with a
socket head hex screw. Loosen screw and move
the arm set straight forward into the sharpening
position. Tighten the hex screw until the arm is
tight and does not move.
DIAMOND
SHARPENING
WHEEL
CLAMP
KNOB
SCISSORS
CLAMP
FREE
FLOATING
ARM
MOUNTING HOLE
Machine may be bolted
to table (4 holes provided).
OOKAMI GOLD®
POLISHING WHEEL
SAFETY SHIELDS
RISER
BLOCK

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SAFETY CONTINUED
Be sure both wheels are tight and there are no chips in the left wheel (your
original sharpening wheel on the Twice As Sharp® or included with the
OGC-TAS OOKAMI GOLD®scissors sharpening system). Damaged
wheels can y apart and cause serious injury. Adjust the two nger and
two tongue guards to a maximum of 1/16 inch clearance between the wheel
and the guards.
Plug machine into a 3 wire grounded receptacle only. Stand aside and let it run for one minute before using
it the rst time. Follow this step also after replacing a grinding wheel.
Use safety glasses and face mask to catch dust and grit. Provided safety glasses
meet or exceed all requirements of ANSI Z87.1 CSA certied.
MACHINE MAINTENANCE
NEVER OIL any part of your scissors sharpening machine. Motor bearings are
sealed ball bearings. Arm bearings are self lubricating and need no lubrication. Brush off grit as necessary.
To replace worn wheels, see page 7. If clamp movement becomes stiff or difcult, loosen angle knob and
clean the grit out.
CONVERTING FROM 110 VOLT TO 220 VOLT:
See Page 22 of this Operators Manual to convert the OGC-TAS, OGA-TAS or OGS-TAS OOKAMI GOLD®
sharpening systems to run on 220 - 240 volts.
As the wheels wear adjust the two nger and two tongue guards to maintain
the maximum 1/16 inch between the wheels and the guards.
After changing wheels, dressing wheels or adjusting the two nger and
two tongue guards, make sure eye shields are in place and securely fastened.
1/16” MAX
(1.6 mm)
CLEARANCE
1/16” MAX
(1.6 mm)
CLEARANCE

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HOW TO CHANGE THE WHEELS
Remove the three screws holding the end cover with a #2 Phillips screw-
driver. Take cover off. Loosen the nut holding the wheel with a ¾” wrench.
Hold the wheel between your ngers when loosening or tightening, never
put side pressure against the wheel. (The left wheel has a left hand nut and
loosens clockwise.) Remove wheel and replace with factory wheel. Paper
blotters must be on each side of standard sharpening wheel, part number
#27000. Never use without blotters. Tighten nut rmly and turn by hand.
If wheel has too much side movement, loosen, rotate and retighten until you
get the least amount of side movement. Replace cover and screws. (Never
run sharpener without covers on). A new wheel must be allowed to run for
at least one minute before using. Do not stand in front of sharpener during
the rst minute.
Never use cracked or chipped wheels.
Standard sharpening wheel #27000 and Professional hon-
ing wheel #25200 are included in the OOKAMI GOLD®
OGC package or installed on your original TWICE AS
SHARP® professional scissors sharpening system.
STEPS TO SHARPEN AN OOKAMI GOLD®
STYLE CONVEX SHEAR
STEP 1: TAKING SHEARS APART
Using the scissors screw pliers, Wolff part number #20940
or a screw driver take the shears completely apart. Set
the screw and washer (also nut if shear is a self adjuster)
in a safe place.
Flange
OOKAMI Gold®Polishing
or Professional Honing
Wheel
Flange
Right Hand Nut
Left Hand Nut
Flange
Diamond or Standard
Sharpening Wheel
Blue Flange
Using a screwdriver in the slot
on the left end of the motor
shaft to tighten/loosen the
wheels.
Self Adjuster
Screw & Washer

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STEP 2: INSTALLING CLAMP
Place scissors clamp in the hole in the top arm. The word sharpen must be
on top as pictured.
STEP 3: CLAMPING SCISSORS
Place one of the blades in the clamp, move the blade until 1/2 of the screw
hole is covered by the jaw of the clamp. Tighten large black knob until the
blade is held rmly.
STEP 4: SETTING CUTTING ANGLE
Determine the angle by the following method:
1. Set the clamp angle at 40o, hold the scissors blade against the dia-
mond wheel (motor off) and turn the wheel by hand. Look at the
line created by the wheel, increase or decrease the angle to match
existing cutting edge. A few degrees off either way will make little
change in cutting performance.
NOTE: It is critical to match the angle as closely as possible to avoid removing excess metal.
STEP 5: SHARPENING EACH BLADE ON THE DIAMOND WHEEL
WARNING: Use VERY LIGHT PRESSURE
because diamond wheels cut rapidly.
Slide blade across the LEFT wheel slowly with very light pressure.
Keep arms in the position shown and move xture from right to
left. Release pressure from the wheel when the blade tip reaches the
center of the wheel. Feel for the burr by sliding your nger towards
the cutting edge. If you feel a burr STOP SHARPENING. Test for a
burr after each pass on the LEFT hand wheel. It will only take 1 - 2
passes if you have matched the angle correctly. If you do not have a
burr recheck the angle setting on the clamp.
Remove the blade from the diamond wheel
when the tip of the blade is in the middle
of the wheel.
SHARPEN
Set angle by
this line

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STEP 5: SHARPENING EACH BLADE ON THE DIAMOND WHEEL - CONTINUED
Remove the blade and sharpen the other blade following the exact same procedure.
STEP 6: DEBURRING
Remove the burrs from the inside of the blades. These steps are also
important if the ride area is rough or damaged.
Using the OOKAMI GOLD®Honing Block :
a. Using the OOKAMI®deburr paper, angle the shears
blade to match the set or twist. DO NOT hone on a plastic
ride.
b. Hone until you see a line on the inside of the blade all
along the cutting edge.
c. Now repeat steps a & b on OOKAMI® nish paper.
STEP 7: POLISHING THE BLADES (UNASSEMBLED)
a. See Step 3 to install the blade in the clamp. Lift the clamp out of the bearing hole, invert it and insert
it back into the arm. Swing top arm to polish on the right hand wheel.
LIFT CLAMP INSERT CLAMP
INVERT CLAMP

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These are enlargements (approximately 120x) of the inside of the cutting edge on a pair of
medium priced beauty shears made in Japan.
Before honing (factory nish)
The same blade after honing on the OOKAMI®Deburr paper
and then 8 - 10 strokes on the OOKAMI®Finish paper.
There is a much improved feel and sound.