Baileigh Industrial DG-500HD User manual

OPERATOR’S MANUAL
DISC GRINDER
MODEL: DG-500HD
© 2017 Baileigh Industrial, Inc.
REPRODUCTION OF THIS MANUAL IN ANY FORM WITHOUT WRITTEN APPROVAL OF BAILEIGH INDUSTRIAL, INC.
IS PROHIBITED. Baileigh Industrial, Inc. does not assume and hereby disclaims any liability for any damage or loss
caused by an omission or error in this Operator’s Manual, resulting from accident, negligence, or other occurrence.
Rev. 11/2017
Baileigh Industrial, Inc.
P.O. Box 531
Manitowoc, WI 54221-0531
Phone: [phone]
Fax: [phone]
[email protected]

Table of Contents
THANK YOU & WARRANTY.......................................................................................... 1
INTRODUCTION............................................................................................................. 3
GENERAL NOTES.......................................................................................................... 3
SAFETY INSTRUCTIONS ..............................................................................................4
SAFETY PRECAUTIONS ...............................................................................................6
Dear Valued Customer:................................................................................................... 6
Specific Safety Precautions.........................................................................................8
TECHNICAL SPECIFICATIONS.....................................................................................9
TECHNICAL SUPPORT ................................................................................................. 9
UNPACKING AND CHECKING CONTENTS................................................................ 10
Cleaning .................................................................................................................... 10
TRANSPORTING AND LIFTING .................................................................................. 11
INSTALLATION............................................................................................................. 11
Anchoring the Machine..............................................................................................12
GETTING TO KNOW YOUR MACHINE ....................................................................... 13
ELECTRICAL................................................................................................................15
CHANGING THE DISC................................................................................................. 17
POSITIONING A PIECE PART TO THE DISC FACE...................................................18
OPERATION.................................................................................................................19
MACHINE ADJUSTMENTS.......................................................................................... 20
DUST COLLECTION .................................................................................................... 21
MATERIAL SELECTION............................................................................................... 21
PARTS DIAGRAM ........................................................................................................ 22
Parts List ................................................................................................................... 25
BRAKE PARTS DIAGRAM...........................................................................................28
Brake Parts List......................................................................................................... 29

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THANK YOU & WARRANTY
Thank you for your purchase of a machine from Baileigh Industrial. We hope that you find it
productive and useful to you for a long time to come.
Inspection & Acceptance. Buyer shall inspect all Goods within ten (10) days after receipt thereof. Buyer’s
payment shall constitute final acceptance of the Goods and shall act as a waiver of the Buyer’s rights to inspect or
reject the goods unless otherwise agreed. If Buyer rejects any merchandise, Buyer must first obtain a Returned
Goods Authorization (“RGA”) number before returning any goods to Seller. Goods returned without a RGA will be
refused. Seller will not be responsible for any freight costs, damages to goods, or any other costs or liabilities
pertaining to goods returned without a RGA. Seller shall have the right to substitute a conforming tender. Buyer will
be responsible for all freight costs to and from Buyer and repackaging costs, if any, if Buyer refuses to accept
shipment. If Goods are returned in unsalable condition, Buyer shall be responsible for full value of the Goods.
Buyer may not return any special-order Goods. Any Goods returned hereunder shall be subject to a restocking fee
equal to 30% of the invoice price.
Specifications. Seller may, at its option, make changes in the designs, specifications or components of the Goods
to improve the safety of such Goods, or if in Seller’s judgment, such changes will be beneficial to their operation or
use. Buyer may not make any changes in the specifications for the Goods unless Seller approves of such changes
in writing, in which event Seller may impose additional charges to implement such changes.
Limited Warranty. Seller warrants to the original end-user that the Goods manufactured or provided by Seller
under this Agreement shall be free of defects in material or workmanship for a period of twelve (12) months from
the date of purchase, provided that the Goods are installed, used, and maintained in accordance with any
instruction manual or technical guidelines provided by the Seller or supplied with the Goods, if applicable. The
original end-user must give written notice to Seller of any suspected defect in the Goods prior to the expiration of
the warranty period. The original end-user must also obtain a RGA from Seller prior to returning any Goods to
Seller for warranty service under this paragraph. Seller will not accept any responsibility for Goods returned without
a RGA. The original end-user shall be responsible for all costs and expenses associated with returning the Goods
to Seller for warranty service. In the event of a defect, Seller, at its sole option, shall repair or replace the defective
Goods or refund to the original end-user the purchase price for such defective Goods. Goods are not eligible for
replacement or return after a period of 30 days from date of receipt. The foregoing warranty is Seller’s sole
obligation, and the original end-user’s exclusive remedy, with regard to any defective Goods. This limited warranty
does not apply to: (a) die sets, tooling, and saw blades; (b) periodic or routine maintenance and setup, (c) repair or
replacement of the Goods due to normal wear and tear, (d) defects or damage to the Goods resulting from misuse,
abuse, neglect, or accidents, (f) defects or damage to the Goods resulting from improper or unauthorized
alterations, modifications, or changes; and (f) any Goods that has not been installed and/or maintained in
accordance with the instruction manual or technical guidelines provided by Seller.
EXCLUSION OF OTHER WARRANTIES. THE FOREGOING LIMITED WARRANTY IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED. ANY AND ALL OTHER EXPRESS, STATUTORY OR IMPLIED
WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY WARRANTY OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE ARE EXPRESSLY DISCLAIMED. NO WARRANTY IS MADE WHICH
EXTENDS BEYOND THAT WHICH IS EXPRESSLY CONTAINED HEREIN.
Limitation of Liability. IN NO EVENT SHALL SELLER BE LIABLE TO BUYER OR ANY OTHER PARTY FOR
ANY INCIDENTIAL, CONSEQUENTIAL OR SPECIAL DAMAGES (INCLUDING, WITHOUT LIMITATION, LOST
PROFITS OR DOWN TIME) ARISING FROM OR IN MANNER CONNECTED WITH THE GOODS, ANY BREACH
BY SELLER OR ITS AGENTS OF THIS AGREEMENT, OR ANY OTHER CAUSE WHATSOEVER, WHETHER
BASED ON CONTRACT, TORT OR ANY OTHER THEORY OF LIABILITY. BUYER’S REMEDY WITH RESPECT
TO ANY CLAIM ARISING UNDER THIS AGREEMENT IS STRICTLY LIMITED TO NO MORE THAN THE
AMOUNT PAID BY THE BUYER FOR THE GOODS.

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Force Majuere. Seller shall not be responsible for any delay in the delivery of, or failure to deliver, Goods due to
causes beyond Seller’s reasonable control including, without limitation, acts of God, acts of war or terrorism, enemy
actions, hostilities, strikes, labor difficulties, embargoes, non-delivery or late delivery of materials, parts and
equipment or transportation delays not caused by the fault of Seller, delays caused by civil authorities,
governmental regulations or orders, fire, lightening, natural disasters or any other cause beyond Seller's reasonable
control. In the event of any such delay, performance will be postponed by such length of time as may be reasonably
necessary to compensate for the delay.
Installation. If Buyer purchases any Goods that require installation, Buyer shall, at its expense, make all
arrangements and connections necessary to install and operate the Goods. Buyer shall install the Goods in
accordance with any Seller instructions and shall indemnify Seller against any and all damages, demands, suits,
causes of action, claims and expenses (including actual attorneys’ fees and costs) arising directly or indirectly out
of Buyer’s failure to properly install the Goods.
Work By Others; Safety Devices. Unless agreed to in writing by Seller, Seller has no responsibility for labor or
work performed by Buyer or others, of any nature, relating to design, manufacture, fabrication, use, installation or
provision of Goods. Buyer is solely responsible for furnishing, and requiring its employees and customers to use all
safety devices, guards and safe operating procedures required by law and/or as set forth in manuals and instruction
sheets furnished by Seller. Buyer is responsible for consulting all operator’s manuals, ANSI or comparable safety
standards, OSHA regulations and other sources of safety standards and regulations applicable to the use and
operation of the Goods.
Remedies. Each of the rights and remedies of Seller under this Agreement is cumulative and in addition to any
other or further remedies provided under this Agreement or at law or equity.
Attorney’s Fees. In the event legal action is necessary to recover monies due from Buyer or to enforce any
provision of this Agreement, Buyer shall be liable to Seller for all costs and expenses associated therewith,
including Seller’s actual attorneys' fees and costs.
Governing Law/Venue. This Agreement shall be construed and governed under the laws of the State of
Wisconsin, without application of conflict of law principles. Each party agrees that all actions or proceedings arising
out of or in connection with this Agreement shall be commenced, tried, and litigated only in the state courts sitting in
Manitowoc County, Wisconsin or the U.S. Federal Court for the Eastern District of Wisconsin. Each party waives
any right it may have to assert the doctrine of “forum non conveniens” or to object to venue to the extent that any
proceeding is brought in accordance with this section. Each party consents to and waives any objection to the
exercise of personal jurisdiction over it by courts described in this section. Each party waives to the fullest extent
permitted by applicable law the right to a trial by jury.
Summary of Return Policy.
•10 Day acceptance period from date of delivery. Damage claims and order discrepancies will not be accepted
after this time.
•You must obtain a Baileigh issued RGA number PRIOR to returning any materials.
•Returned materials must be received at Baileigh in new condition and in original packaging.
•Altered items are not eligible for return.
•Buyer is responsible for all shipping charges.
•A 30% re-stocking fee applies to all returns.
Baileigh Industrial makes every effort to ensure that our posted specifications, images, pricing and product
availability are as correct and timely as possible. We apologize for any discrepancies that may occur. Baileigh
Industrial reserves the right to make any and all changes deemed necessary in the course of business including but
not limited to pricing, product specifications, quantities, and product availability.
For Customer Service & Technical Support:
Please contact one of our knowledgeable Sales and Service team members at:
[phone] or e-mail us at s[email protected]

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3
INTRODUCTION
The quality and reliability of the components assembled on a Baileigh Industrial machine
guarantee near perfect functioning, free from problems, even under the most demanding
working conditions. However, if a situation arises, refer to the manual first. If a solution cannot
be found, contact the distributor where you purchased our product. Make sure you have the
serial number and production year of the machine (stamped on the nameplate). For
replacement parts refer to the assembly numbers on the parts list drawings.
Our technical staff will do their best to help you get your machine back in working order.
In this manual you will find: (when applicable)
•Safety procedures
•Correct installation guidelines
•Description of the functional parts of the machine
•Capacity charts
•Set-up and start-up instructions
•Machine operation
•Scheduled maintenance
•Parts lists
GENERAL NOTES
After receiving your equipment remove the protective container. Do a complete visual
inspection, and if damage is noted, photograph it for insurance claims and contact your
carrier at once, requesting inspection. Also contact Baileigh Industrial and inform them of the
unexpected occurrence. Temporarily suspend installation.
Take necessary precautions while loading / unloading or moving the machine to avoid any
injuries.
Your machine is designed and manufactured to work smoothly and efficiently. Following proper
maintenance instructions will help ensure this. Try and use original spare parts, whenever
possible, and most importantly; DO NOT overload the machine or make any modifications.
Note: This symbol refers to useful information throughout the manual.

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4
LEARN TO RECOGNIZE SAFETY INFORMATION
This is the safety alert symbol. When you see this symbol on
your machine or in this manual, BE ALERT TO THE
POTENTIAL FOR PERSONAL INJURY!
Follow recommended precautions and safe operating
practices.
UNDERSTAND SIGNAL WORDS
A signal word –DANGER, WARNING, or CAUTION
is used with the safety alert symbol. DANGER
identifies a hazard or unsafe practice that will result in
severe Injury or Death.
Safety signs with signal word DANGER or WARNING are
typically near specific hazards.
General precautions are listed on CAUTION safety signs.
CAUTION also calls attention to safety messages in this
manual.
IMPORTANT
PLEASE READ THIS OPERATORS MANUAL CAREFULLY
It contains important safety information, instructions, and necessary operating
procedures. The continual observance of these procedures will help increase your
production and extend the life of the equipment.
SAFETY INSTRUCTIONS

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5
SAVE THESE INSTRUCTIONS.
Refer to them often and use them to instruct others.
PROTECT EYES
Wear safety glasses or suitable eye protection
when working on or around machinery.
PROTECT AGAINST NOISE
Prolonged exposure to loud noise can cause impairment or loss of
hearing. Wear suitable hearing protective devices such as ear muffs or
earplugs to protect against objectionable or uncomfortable loud noises.
DUST HAZARD
Wear appropriate dust mask. Dust created while using machinery can
cause cancer, birth defects, and long term respiratory damage. Be aware
of the dust hazards associated with all types of materials.
DUST PARTICLES AND IGNITION SOURCES
DO NOT operate this machine in areas where explosion risks are high.
Such areas include locations near pilot lights, open flames, or other
ignition sources.
ROTATING DISC ABRASIONS –ENTANGLEMENT HAZARD
DO NOT place hands or fingers near, or in contact with sanding disc
during operation. Contain long hair, DO NOT wear jewelry or loose-fitting
clothing.

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6
HIGH VOLTAGE
USE CAUTION IN HIGH VOLTAGE AREAS. DO NOT assume the
power to be off.
FOLLOW PROPER LOCKOUT PROCEDURES.
SAFETY PRECAUTIONS
Metal working can be dangerous if safe and proper operating procedures are not followed. As
with all machinery, there are certain hazards involved with the operation of the product. Using
the machine with respect and caution will considerably lessen the possibility of personal injury.
However, if normal safety precautions are overlooked or ignored, personal injury to the operator
may result.
Safety equipment such as guards, hold-downs, safety glasses, dust masks and hearing
protection can reduce your potential for injury. But even the best guard won’t make up for poor
judgment, carelessness or inattention. Always use common sense and exercise caution in
the workshop. If a procedure feels dangerous, don’t try it.
REMEMBER: Your personal safety is your responsibility.
Dear Valued Customer:
•All Baileigh machines should be used only for their intended use.
•Baileigh does not recommend or endorse making any modifications or alterations to a
Baileigh machine. Modifications or alterations to a machine may pose a substantial risk of
injury to the operator or others and may do substantial damage to the machine.
•Any modifications or alterations to a Baileigh machine will invalidate the machine's warranty.
PLEASE ENJOY YOUR BAILEIGH MACHINE!....PLEASE ENJOY IT SAFELY!
1. FOR YOUR OWN SAFETY, READ INSTRUCTION MANUAL BEFORE OPERATING THE
MACHINE. Learn the machine’s application and limitations as well as the specific hazards.
2. Only trained and qualified personnel can operate this machine.
3. Make sure guards are in place and in proper working order before operating
machinery.
WARNING: FAILURE TO FOLLOW THESE RULES MAY RESULT IN
SERIOUS PERSONAL INJURY

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4. Remove any adjusting tools. Before operating the machine, make sure any adjusting tools
have been removed.
5. Keep work area clean. Cluttered areas invite injuries.
6. Overloading machine. By overloading the machine, you may cause injury from flying parts.
DO NOT exceed the specified machine capacities.
7. Do not force tool. Your machine will do a better and safer job if used as intended. DO NOT
use inappropriate attachments in an attempt to exceed the machines rated capacity.
8. Use the right tool for the job. DO NOT attempt to force a small tool or attachment to do the
work of a large industrial tool. DO NOT use a tool for a purpose for which it was not
intended.
9. Dress appropriate. DO NOT wear loose fitting clothing or jewelry as they can be caught in
moving machine parts. Protective clothing and steel toe shoes are recommended when
using machinery. Wear a restrictive hair covering to contain long hair.
10.Use eye and ear protection. Always wear ISO approved impact safety goggles. Wear a full-
face shield if you are producing metal filings.
11.Do not overreach. Maintain proper footing and balance at all times. DO NOT reach over or
across a running machine.
12.Stay alert. Watch what you are doing and use common sense. DO NOT operate any tool or
machine when you are tired.
13.Check for damaged parts. Before using any tool or machine, carefully check any part that
appears damaged. Check for alignment and binding of moving parts that may affect proper
machine operation.
14.Observe work area conditions. DO NOT use machines or power tools in damp or wet
locations. Do not expose to rain. Keep work area well lighted. DO NOT use electrically
powered tools in the presence of flammable gases or liquids.
15.Keep children away. Children must never be allowed in the work area. DO NOT let them
handle machines, tools, or extension cords.
16.Store idle equipment. When not in use, tools must be stored in a dry location to inhibit rust.
Always lock up tools and keep them out of reach of children.
17.DO NOT operate machine if under the influence of alcohol or drugs. Read warning
labels on prescriptions. If there is any doubt, DO NOT operate the machine.
18.Sparks and hot material from cutting can easily go through small cracks and openings into
adjacent areas.
19.Do not grind where the atmosphere might contain flammable dust, gas, or liquid vapors such
as from gasoline.
20.Watch for fire and keep a fire extinguisher close by.
21.Turn off power before checking, cleaning, or replacing any parts.

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22.Be sure all equipment is properly installed and grounded according to national, state, and
local codes.
23.Keep all cords dry, free from grease and oil, and protected from sparks and hot metal.
24.Inspect power and control cables periodically. Replace if damaged or bare wires are
exposed. Bare wiring can kill! DO NOT touch live electrical components or parts.
25.DO NOT bypass or defeat any safety interlock systems.
26.Keep visitors a safe distance from the work area.
Specific Safety Precautions
1. Support piece part and maintain control of the part at all times.
2. DO NOT wet grind or polish. Never use a stream of water on the piece part. Only quench the
piece part in water to cool it.
3. DO NOT grind or polish magnesium as it may catch on fire.
4. Make sure table locking knob is always tight.
5. Remove electrical plug from power source outlet when adjusting table, changing discs, or
removing or adjusting platen.
6. After turning switch ON, always allow the disc to come up to full speed before sanding or
grinding.
7. Keep your hands clear of the disc.
8. Replace sanding discs when they become loaded and glazed or frayed.
9. Do not allow familiarity gained from frequent use of your sander/grinder to become
commonplace.
Always remember –a careless fraction of a second is sufficient to cause severe injury.

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TECHNICAL SPECIFICATIONS
Disc Diameter
20” (508mm)
Disc Speed
1,720 rpm
Table Dimensions
27.5” x 10.5” (699mm x 267mm)
Table Height above Floor –Minimum
28.15” (715mm)
Table Height above Floor –Maximum
36” (915mm)
Table to Disk Gap
.181” (4mm)
Table Adjustments
Hand Crank Worm Gear and Rack
Table Tilt –Upward
30°
Table Tilt –Downward
45°
Dust Port
1 @ 4” (100mm)
Motor
2hp (1.5 kw) 220V, 1ph, 60hz, 15A
Power Requirements
220V, 1ph, 60hz, 30A
Foot Print Dimensions (L x W x H)
27.5” x 27.5” x 48” (699mm x 699mm x 1219mm)
Shipping Dimensions (L x W x H)
48” x 45” x 57” (1219mm x 1143mm x 1448mm)
Net Weight
400lbs. (180kg.)
Shipping Weight
463lbs. (210kg.)
TECHNICAL SUPPORT
Our technical support department can be reached at 920.684.4990, and asking for the support
desk for purchased machines. Tech Support handles questions on machine setup, schematics,
warranty issues, and individual parts needs: (other than die sets and blades).
For specific application needs or future machine purchases contact the Sales Department at:
[email protected], Phone: [phone], or Fax: [phone].
Note: The photos and illustrations used in this manual are representative only and
may not depict the actual color, labeling or accessories and may be intended to illustrate
technique only.
Note: The specifications and dimensions presented here are subject to change
without prior notice due to improvements of our products.

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UNPACKING AND CHECKING CONTENTS
Your Baileigh machine is shipped complete. Separate all parts from the packing material and
check each item carefully. Make certain all items are accounted for before discarding any
packing material.
Cleaning
Your machine may be shipped with a rustproof waxy coating and/or grease on the exposed
unpainted metal surfaces. Fully and completely remove this protective coating using a
degreaser or solvent cleaner. Moving items will need to be moved along their travel path to
allow for cleaning the entire surface. For a more thorough cleaning, some parts will occasionally
have to be removed. DO NOT USE acetone or brake cleaner as they may damage painted
surfaces.
Follow manufacturer’s label instructions when using any type of cleaning product. After cleaning,
wipe unpainted metal surfaces with a light coating of quality oil or grease for protection.
Important: This waxy coating is NOT a lubricant and will cause the machine to
stick and lose performance as the coating continues to dry.
WARNING: SUFFOCATION HAZARD! Immediately discard any plastic
bags and packing materials to eliminate choking and suffocation hazards to children
and animals.
If any parts are missing, DO NOT place the machine into service until the missing
parts are obtained and installed correctly.
WARNING: DO NOT USE gasoline or other petroleum products to clean
the machine. They have low flash points and can explode or cause fire.
CAUTION: When using cleaning solvents work in a well-ventilated area.
Many cleaning solvents are toxic if inhaled.
GAS

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TRANSPORTING AND LIFTING
IMPORTANT: Lifting and carrying operations should be carried out by skilled workers,
such as a truck operator, crane operator, etc. If a crane is used to lift the machine, attach the
lifting chain carefully, making sure the machine is well balanced.
Follow these guidelines when lifting with truck or trolley:
•The lift truck must be able to lift at least 1.5 –2 times
the machines gross weight.
•Make sure the machine is balanced. While
transporting, avoid rough or jerky motion, and maintain
a safe clearance zone around the transport area.
•Use a fork lift with sufficient lifting capacity and forks
that are long enough to reach the complete width of
the machine.
•Remove the securing bolts that attach the machine to
the pallet.
•Approaching the machine from the side, lift the machine on the frame taking care that there
are no cables or pipes in the area of the forks.
•Move the machine to the required position and lower gently to the floor.
•Level the machine so that all the supporting feet are taking the weight of the machine and no
rocking is taking place.
INSTALLATION
IMPORTANT:
Consider the following when looking for a suitable location to place the machine:
•Overall weight of the machine.
•Weight of material being processed.
•Sizes of material to be processed through the machine.
•Space needed for auxiliary stands, work tables, or other machinery.
•Clearance from walls and other obstacles.
•Maintain an adequate working area around the machine for safety.
•Have the work area well illuminated with proper lighting.
•Keep the floor free of oil and make sure it is not slippery.

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•Remove scrap and waste materials regularly, and make sure the work area is free from
obstructing objects.
•If long lengths of material are to be fed into the machine, make sure that they will not extend
into any aisles.
•LEVELING: The machine should be sited on a level, concrete floor. Provisions for securing it
should be in position prior to placing the machine. The accuracy of any machine depends on
the precise placement of it to the mounting surface.
•FLOOR: This tool distributes a large amount of weight over a small area. Make certain that
the floor is capable of supporting the weight of the machine, work stock, and the operator.
The floor should also be a level surface. If the unit wobbles or rocks once in place, be sure to
eliminate by using shims.
•WORKING CLEARANCES: Take into consideration the size of the material to be
processed. Make sure that you allow enough space for you to operate the machine freely.
•POWER SUPPLY PLACEMENT: The power supply should be located close enough to the
machine so that the power cord is not in an area where it would cause a tripping hazard. Be
sure to observe all electrical codes if installing new circuits and/or outlets.
Anchoring the Machine
•Once positioned, anchor the machine to the floor, as shown in
the diagram. Use bolts and expansion plugs or sunken tie rods
that connect through and are sized for the holes in the base of
the stand.
•This machine requires a solid floor such as concrete at a
minimum of 4” (102mm) thick.
WARNING: For your own safety, DO NOT connect the machine to the
power source until the machine is completely assembled and you read and
understand the entire instruction manual.
.31"
(7.87mm)
.50"
(12.7mm)

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GETTING TO KNOW YOUR MACHINE
D
J
I
M
H
N
F
E
L
D
F
G
E
C
B
C
B
A
K

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Item
Description
Function
A
Base
Used to support the column and grinding head
assembly, has anchor holes and jack bolts.
B
Lift Assist Cylinder
Gas cylinder used to assist with the lifting and
lowering of the work table.
C
Dust Chute
Dust port may be connected to a material
compatible dust collector.
D
Working Table
Used to support the piece part. Includes miter guide
slot. Miter gauge not shown.
E
Drive Disc
Used to attach sanding media.
F
Disc Guard
Covers disc edges to prevent inadvertent contact
and help to control sparks and dust.
G
Forward / Off / Reverse Switch
Selects the direction of rotation of the sanding disc.
H
Start / Stop Switch
After a rotation direction has been selected, Press
the green button to start the motor/disc. Press the
Red button to stop.
I
Tilt Hand Wheel
Turn hand wheel to rotate table up or down.
J
Tilt Knob
Loosen when rotating the table.
K
Brake Pedal
After the motor has been turned off, press down on
the pedal to shorten the time that the disc requires to
stop turning / free spinning.
L
Column Handwheel
Turn hand wheel to raise or lower table on column.
M
Column Knob
Loosen when raising or lowering the table.
N
Motor
Turns the disc at 1,720 rpm

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ELECTRICAL
Power Specifications
Your tool is wired for 220 volts, 60Hz alternating current. Before connecting the tool to the power
source, make sure the machine is cut off from power source.
Before switching on the power, you must check the voltage and frequency of the power to see if
they meet with the requirement, the allowed range for the voltage is ±5%, and for the frequency
is ±1%.
Considerations
•Observe local electrical codes when connecting the machine.
•The circuit should be protected with a time delay fuse or circuit breaker with a amperage
rating slightly higher than the full load current of machine.
•A separate electrical circuit should be used for your tools. Before connecting the motor to the
power line, make sure the switch is in the “OFF” position and be sure that the electric current
is of the same characteristics as indicated on the tool.
•All line connections should make good contact. Running on low voltage will damage the
motor.
•In the event of a malfunction or breakdown, grounding provides a path of least resistance for
electric current to reduce the risk of electric shock. This tool is equipped with an electric cord
having an equipment-grounding conductor and a grounding plug. The plug must be plugged
into a matching outlet that is properly installed and grounded in accordance with all local
codes and ordinances.
CAUTION: HAVE ELECTRICAL UTILITIES CONNECTED TO MACHINE BY
A CERTIFIED ELECTRICIAN!
Check if the available power supply is the same as listed on the machine nameplate.
WARNING: Make sure the grounding wire (green) is properly connected
to avoid electric shock. DO NOT switch the position of the green grounding wire if
any electrical plug wires are switched during hookup.
WARNING: In all cases, make certain the receptacle in question is
properly grounded. If you are not sure, have a qualified electrician check the
receptacle.

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•Improper connection of the equipment-grounding conductor can result in risk of electric
shock. The conductor with insulation having an outer surface that is green with or without
yellow stripes is the equipment-grounding conductor. If repair or replacement of the electric
cord or plug is necessary, do not connect the equipment-grounding conductor to a live
terminal.
•Check with a qualified electrician or service personnel if the grounding instructions are not
completely understood, or if in doubt as to whether the tool is properly grounded.
•Repair or replace damaged or worn cord immediately.
Extension Cord Safety
Extension cord should be in good condition and meet the minimum wire gauge requirements
listed below:
LENGTH
AMP RATING
25ft
50ft
100ft
1-12
16
16
14
13-16
14
12
12
17-20
12
12
10
21-30
10
10
No
WIRE GAUGE
An undersized cord decreases line voltage, causing loss of power and overheating. All cords
should use a ground wire and plug pin. Replace any damaged cords immediately.
Power cord connection:
1. Turn the main disconnect switch on the control panel to the OFF position.
2. Unwrap the power cord and route the cord away from the machine toward the power supply.
a. Route the power cord so that it will NOT become entangled in the machine in any
way.
b. Route the cord to the power supply in a way that does NOT create a trip hazard.
3. Connect the power cord to the power supply and check that the power cord has not been
damaged during installation.
4. When the machine is clear of any obstruction. The main power switch may be turn ON to test
the operation. Turn the switch OFF when the machine is not in operation.

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CHANGING THE DISC
Before changing the abrasive disc:
1. Make sure the power to the sander is turned OFF at the source yellow lock insert is removed
from the start/stop switch.
2. Lower the working table to the lowest position.
3. Tilt back the guard to expose the top of the disc. The sander takes standard 20” (508mm)
diameter cloth or paper back discs. A good recommendation would be 60 grit for coarse or
rough sanding, 80 grit for general purpose medium duty sanding, and 100 grit for fine
sanding.
4. Pull at the edge of the mounted grinding disc to get it started, then pull it completely off of the
drive disc.
5. Make sure the drive disc surface is clean. Use a putty knife to remove the old abrasive or if
necessary, use a cleaner which dries film-free such as naphtha to remove any old adhesive
(or dust) which might adhere to the drive disc.
6. Remove about 1/3 of the protective cover from the back side of the new grinding disc.
7. Put the exposed edge of the new grinding disc against the drive disc and center the grinding
disc carefully onto the drive disc. Press to hold that section against the drive disc.
8. Rotate the drive disc 180°. The part of the grinding disc which is attached to the drive disc
will now be at the bottom of the drive disc, and will be slightly hidden behind the table. With
the drive disc in this position, you can keep the grinding disc accurately centered while
reaching between the grinding disc to remove the rest of the protective backing. Securely
press the rest of the grinding disc against the face of the drive disc.
9. Move the wheel guard forward so it covers the edge of the grinding and drive disc.
10.Adjust the table to working height.
11.Reconnect power to the machine.
12.Turn the machine "ON" and observe the action of the disc for possible unbalance. When you
are sure that everything is operating correctly, you can resume sanding / grinding operations.
CAUTION: Avoid material catching and being thrown from the machine.
The gap between the abrasive surface and the table edge must not exceed 3/16"
(4.75mm). If it does, loosen the four motor mount bolts and move the motor forward
to minimize the gap.

18
18
POSITIONING A PIECE PART TO THE DISC FACE
No matter what size or type piece part you will be sanding or grinding, there are several
important points to consider.
1. Always be sure that the wheel guard is positioned over the disc edge. Dust and grit removed
from the piece part can be hurled off the wheel if the wheel guard is not in position.
IMPORTANT: Always allow time for the disc to come up to full speed before
contacting the piece part to the disc.
2. This is a very powerful and aggressive grinding device which operates at high surface
speeds so you always want to properly support the piece part while using the work table.
3. The safest position at which to do any grinding is with the part on the work table where the
disc is moving
downward past the work
table. Whenever
possible, keep the
workpiece in this area
when grinding. In
addition to safety,
keeping the piece part in
this area greatly
increases the
effectiveness of the dust
control chute and any
vacuum dust control
system you might be
using.
4. The speed and aggressiveness of the machine means that CONTROL of the piece part is
absolutely essential. ALWAYS USE TWO HANDS to control the piece part.
5. Because of the speed with which the disc can grind, heat build-up on piece parts is usually
very quick. To prevent burns and/or possible loss of control of any piece part:
a. Use heat resistant gloves to hold the piece part.
b. Where possible and appropriate, use additional tooling or fixturing to hold the
workpiece when pressing against the grinding disc.
WARNING: All machinery poses a potential for danger when being
operated. Accidents result from lack of machine knowledge and failure to pay
attention. Always be cautious and alert to the potential for serious injury. Follow
safety rules and precautions to lessen the chances of an accident.
Rotation
Table Most Effective Work Area
(Abrasive force of rotating
disc tends to hold piece
part to the table).
Rotation
Table