Resources Unlimited Hand Held Edge Deletion Tool User manual

Hand Held Edge Deletion Tool
Operation Manual
P.O. Box 173, Carleton, MI 48117 http://www.resourcesunlimitedcompany.com

Hand Held Edge Deletion Tool Manual ● Resources Unlimited Company, Inc. ● Rev. 2.11 ● Page 2
Table of Contents
1. Safety Information ................................................................................................. 3
2. Hand Held Edge Deletion Tool Set-Up ................................................................ 4
2.1 Adjusting Tool Air Flow ..................................................................................... 4
2.2 Deletion Wheel Adjustment ................................................................................ 4
3. Using the Hand Held Edge Deletion Tool ............................................................ 6
3.1 Power ..................................................................................................................... 6
3.2 Operation .............................................................................................................. 6
4. Maintenance ........................................................................................................... 9
4.1 Regular Maintenance Notes ................................................................................ 9
4.2 Dressing the Edge Deletion Wheel .................................................................... 9
4.3 Changing the Edge Deletion Wheel ................................................................. 10
4.4Changing the Hand Held Edge Deletion Tool Teflon Guide ......................... 12
5. Edge Deletion Hand Held Parts Listing .......................................................... 13

Hand Held Edge Deletion Tool Manual ● Resources Unlimited Company, Inc. ● Rev. 2.11 ● Page 3
1. Safety Information
Safety Information
Please READ ALL SAFETY INFORMATION before using your Hand Held Edge Deletion Tool!
Warning! Edge Deletion Wheel can BREAK APART during use and CAUSE INJURY if
damaged or run too fast. Always WEAR PROTECTION for eyes, face, hands and body.
Improper use can cause wheel to break apart and may cause injury.
Take precautions indicated below.
Exceeding Maximum Operating Speed can cause wheel to break apart and may cause
injury. NEVER EXCEED the maximum operating speed (MOS) on wheel label. CHECK
the maximum operating speed (MOS) of the wheel against the machine speed.
Abusive operation can cause wheel to break apart and may cause injury. DO NOT
JAM the work piece onto the wheel. DO NOT PRESS hard on the side of the wheel.
A damaged, vibrating and wobbling wheel can break apart and may cause injury. DO
NOT enlarge or change the shape of the center hole. DO NOT use a wheel that has gouges
or layer separation. STOP the wheel if vibrating or wobbling occurs during use.
DAMAGE or WOBBLING may be caused by:
* FORCING a wheel onto a spindle that is too large.
* OVER-TIGHTENING the mounting nut.
* USING flanges with wheels or rim wheels that are smaller than 1/3 wheel diameter,
unequal in diameter or warped.
* USING side support washers with unitized wheels that are smaller than 1/3 wheel
diameter, unequal in diameter or warped.
Incorrect storage can soften wheel and cause it to break apart during use and may
cause injury. Wheel can soften in storage by exposure to water, high humidity, or hot
temperatures. STORE wheel at temperatures below 150 degrees F (*65 degrees C) for at
least 24 hours before using.
Sparks and particles flying off the wheel can injure or cause fire. REMOVE
FLAMMABLE MATERIALS from the work area. DIRECT sparks away from face and body.
Use the machine hand held machine SAFETY GUARDS adjust properly to your operation
as provided with unit. Make sure no one is standing in front or back of the wheel when
starting machine.

Hand Held Edge Deletion Tool Manual ● Resources Unlimited Company, Inc. ● Rev. 2.11 ● Page 4
2. Hand Held Edge Deletion Tool Set-Up
2.1 Adjusting Tool Air Flow
Before using the hand held edge deletion tool, you will need to adjust the air flow through the
tool. The air flow has been turned down to a very low setting for shipment. To adjust the tool
speed:
1. Close your air supply valve to the fixture you intend to plug the Hand Held Edge Deletion
Tool into.
2. Plug the compressed air line into the Hand Held Edge Deletion Tool and restore the air
flow.
3. Depress the air tool. If the tool is new, the wheel may spin slowly. (If the wheel does not
spin at all, see the note at the end of this section.)
4. To adjust the speed, turn the inside black screw located on the side of the tool body. Set
the tool’s RPM for optimal safety, efficiency and comfort. Note that setting the speed too
high or too low may produce inefficient coating deletion.
Note: Sometimes the wheel does not turn when the handle is depressed. You will hear a burst of
air through the tool, but the wheel will not spin. This can be due to an over-tight U-Bracket or the
tool speed being set too low. To set the speed, follow the steps above.
2.2 Deletion Wheel Adjustment
The Hand Held Edge Deletion tool should be adjusted to delete the correct amount of coating.
To set the edge guide wheels:
1. Unplug the Hand Held Edge Deletion tool from the air supply.
2. Holding the large air tool nut located behind the guard with a ¾” wrench or a crescent
wrench, loosen the nut holding the grinding wheel on the arbor with a 9/16” wrench or
socket wrench. (See photo on page 9).
3. Set the distance location of the grinding wheel by adjusting the position of the arbor.
Measure from the front of the UHMW plastic guide to the front edge of the wheel. The
arbor should be set so that you delete the correct amount 0” – 1/32”.
4. Reversing the procedure specified in step 2, tighten the nut holding on the arbor while
holding the large air tool nut with a ¾” wrench or crescent wrench. Stop tightening if the

Hand Held Edge Deletion Tool Manual ● Resources Unlimited Company, Inc. ● Rev. 2.11 ● Page 5
arbor begins to spin in the air tool. If the arbor spins too freely, you may need to re-tighten
the air tool until the arbor is firmly held.
5. Reconnect the Hand Held Edge Deletion tool to the air supply. Test your setting by edge
deleting one edge of a coated piece of glass and measuring using a flat steel ruler. Adjust
the position of the wheel using the steps above if necessary.`
An example of the amount of deletion required for a ½” spacer.
Note: if you change the position of the grinding wheel after the Hand Held Edge Deletion tool
has been in use for a period of time, the wheel will be worn unevenly. If you increase the amount
of coating being deleted, this will result in uneven deletion.

Hand Held Edge Deletion Tool Manual ● Resources Unlimited Company, Inc. ● Rev. 2.11 ● Page 6
3. Using the Hand Held Edge Deletion Tool
3.1 Power
The hand held edge deletion tool is designed to be powered by factory compressed air - typically
about 90 PSI. The tool uses a 1/4 NPTF male quick-disconnect, requiring a ¼ NPTF female
quick-disconnect attached to the compressed air line. Daily oiling is recommend for the air tool.
To do this manually, place a few drops into the male connector opening, tilt it and squeeze then
handle to allow it to run into the body of the tool.
3.2 Operation
1. Adjust deletion guide so that the wheel is will remove the desired amount of coating. The
deletion tolerance is +0”/ -1/16” from sightline
2. Close air supply valve to shut off air to the line.
3. Plug compressed air line into the Hand-held Edge Deletion Tool. Restore air flow to the
line.

Hand Held Edge Deletion Tool Manual ● Resources Unlimited Company, Inc. ● Rev. 2.11 ● Page 7
4. Position tool comfortably in your hand for optimal balance, and press the air tool lever to
actuate the Hand-held Edge Deletion Tool. (Fig. 3.2)
5. Place the Hand-held Edge Deletion Tool on the edge of the coated substrate with the
coated side of the glass facing up.

Hand Held Edge Deletion Tool Manual ● Resources Unlimited Company, Inc. ● Rev. 2.11 ● Page 8
6. Guiding the Hand-held Edge Deletion Tool with your hand, move smoothly along the
glass, providing firm pressure to remove the desired amount of coating. Deletion must
not extend past the sightline.
Putting too little pressure on the tool will not remove enough coating. Putting too much
pressure on the tool may cause damage to the glass and premature deletion wheel
wear. If the deleted coating glass looks streaky, all of the coating has not been
removed - you may need to modify your edge deletion technique. Be sure to pass the
glass under the deletion head as uniformly and smoothly as possible. Moving the tool
over the glass too quickly or in non-uniform fashion can result in the wheel “skipping”
as the glass moves beneath it, leaving streaks.
To determine if the coating has been completely removed from the edge, you can test
the deleted area with an ohmmeter. The coating is removed when the ohmmeter
shows no reading. An ohm reading indicates the edge deletion has not been
successful.

Hand Held Edge Deletion Tool Manual ● Resources Unlimited Company, Inc. ● Rev. 2.11 ● Page 9
4. Maintenance
4.1 Regular Maintenance Notes
1. When tightening U Bracket, DO NOT OVERTIGHTEN as this may cause damage to the
air tool.
2. REPLACE white plastic guide if it becomes deeply grooved by contact with glass edge.
Failure to maintain guide will result in incorrect edge deletion depth.
3. Make sure that Black EDHH Shield and EDHH Alum Guide are PROPERLY ALIGNED at
a 90 degree angle to the air tool when reassembling after disassembly.
4. Clean and check aluminum EDHH Shield guide regularly for wear. Replace if damaged.
5. OIL EDHH GRINDER DAILY as specified on the tool.
4.2 Dressing the Edge Deletion Wheel
A wheel should be dressed or cleaned when the edge has a glazed appearance. Be sure to
wear safety glasses with side shields when performing this operation.
1. Adjust the arbor so that the wheel is far enough from the white plastic guide so that a
regular wire brush can be placed against the entire edge of the wheel but still under the
guard.

Hand Held Edge Deletion Tool Manual ● Resources Unlimited Company, Inc. ● Rev. 2.11 ● Page 10
2. Hold the wire brush perpendicular to the edge of wheel edge as seen in the photo. If the
wheel is at the proper distance from the plastic guard, you should be able to rest the
wooden end of the brush against it and the wire bristles should make contact with the
entire wheel edge.
3. Start the hand tool and pressing the wire brush lightly against the wheel surface until the
glaze on the wheel is completely gone.
4.3 Changing the Edge Deletion Wheel
The Hand Held Edge Deletion tool wheel should be replaced before the diameter of the grinding
wheel is less than the top edge of the UHMW Plastic Guide. To remove the edge deletion wheel:
1. Unplug the Hand Held Edge Deletion tool from the air supply.
2. Holding the large air tool nut behind the guard with a ¾” wrench or a crescent wrench,
use a 9/16” wrench or socket wrench to remove the nut holding the grinding wheel on the
arbor.

Hand Held Edge Deletion Tool Manual ● Resources Unlimited Company, Inc. ● Rev. 2.11 ● Page 11
3. Pull the black restraining washer off the arbor and gently remove the grinding wheel from
the arbor.
4. Push the new grinding wheel onto the arbor until full seated against the rear restraining
washer.
5. Replace the black restraining washer and 9/16” nut while holding the large air tool nut
with a ¾” wrench or crescent wrench. Stop tightening if the arbor begins to spin in the air
tool. If the arbor spins too freely, you may need to re-tighten the air tool until the arbor is
firmly held.
Resources Unlimited keeps a supply of the grinding wheel in stock for the Hand Held Edge
Deletion Tool. The tool comes equipped with two 3” x ¾” wide x 3/8” arbor Wheel, 8 Density.
One is mounted on the tool the second is a spare. If you are interested in purchasing wheels
from us, please check our website at www.resourcesunlimitedcompany.com for pricing. We can
also be reached at 734-654-9728.

Hand Held Edge Deletion Tool Manual ● Resources Unlimited Company, Inc. ● Rev. 2.11 ● Page 12
4.4 Changing the Hand Held Edge Deletion Tool Teflon Guide
To change the Hand Held Edge Deletion Tool
Teflon Guide:
1. Unplug the Hand Held Edge Deletion
tool from the air supply.
2. Using an 1/8” Allen wrench, remove the
two black flat head socket cap screws
from the guide.
3. Remove and replace the guide.
4. Adjust the wheel if necessary to
provide the correct amount of coating
deletion. See Section 2.2 on Hand
Held Edge Deletion Tool Operation for
more information on setting the position
of the grinding wheel.

Hand Held Edge Deletion Tool Manual ● Resources Unlimited Company, Inc. ● Rev. 2.11 ● Page 13
5. Edge Deletion Hand Held Parts Listing
Part
EDHH U Bolt
EDHH Mounting
--
EDHH Grinder
EDHH Shield
EDHH Arbor
EDT Alum Guide
EDT Wheel
EDT Plastic Guide
Description
E/D Hand Held 1-3/4” U-Bolt
E/D Hand Held Aluminum Tool Positioning Mount
10-24 x 3/4” SHCS (2 Req'd)
E/D Hand Held Air Tool Die Grinder
E/D Hand Held Aluminum Guard Shield
E/D Hand Held ¼” Shank Arbor
E/D Hand Held Aluminum Guide Bracket
E/D Hand Held 3” x ½” Unitized Aluminum Oxide Wheel
E/D Hand Held Teflon Glass Guide
Please visit our webpage at www.ResourcesUnlimitedCompany.com for pricing and delivery
information on parts.
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