MN906
No. 280F Replaces 280E
LB7011
Instruction Manual For Baldor Buffers
SAFETY NOTICE:
WARNING statements describe conditions that may lead to personnel injury including potentially
fatal injuries if the machine is not properly used and warnings are not properly followed.
Caution statements describe conditions that may lead to equipment damage.
Electrical shock can cause serious or fatal injury. Only qualified personnel should install,
maintain or troubleshoot this equipment.
WARNING:
WARNING:
Do not operate this buffer until you are sure that you are completely familiar with the safe
operation of the buffer, all accessories and safety equipment. Improper use can lead to
severe injury. This manual defines proper use of this equipment. Before using this
equipment for any other use, please consult Baldor. Contact Baldor if you do not
understand any procedure or operation concerning this buffer or this manual.
Prevent electrical shock hazard and accidental machine operation. Always disconnect
buffer from the power source before servicing, changing accessories (such as wheels,
tool rest, spark arrestor, etc.) or before performing maintenance.
WARNING:
WARNING:
WARNING:
Use a holder when practical. It’s safer than using your hand and it keeps hands away from
wheel. Always keep hands at least 2 inches from wheels.
Avoid accidental starting. Make sure switch is in “OFF” position before connecting to
power source.
Be sure the system is properly grounded before applying power. Do not apply power
before you ensure that grounds are connected. Electrical shock can cause serious or fatal
injury. Follow the National Electrical Code (NEC) and local codes for the safe installation
of this equipment.
WARNING:
WARNING:
Always use safety glasses with side shields (or full face shield) when operating grinder.
Do not use ordinary eyeglasses. Also use face or dust mask if cutting operation is dusty.
Unsuitable accessories or attachments added to this machine can create hazards. Baldor
accessories are specifically designed to be used with this buffer. Use accessories or
attachments only in the proper intended manner. Accessories or attachments obtained
from another source may cause hazards. Consult the manufacturer before use.
WARNING:
Remove adjusting keys and wrenches from this product after use. Check to see that keys
and adjusting wrenches are removed from buffer before turning it on. Projectiles can
cause severe injury to yourself or others.
WARNING:
WARNING:
Keep work area clean and well lighted. Clutter and poor lighting invites accidents.
Don’t use in dangerous environment. Don’t use buffers in damp or wet locations, or
expose them to rain. Electrical shock can cause serious or fatal injury. Follow the
National Electrical Code (NEC) and local codes for the safe installation of this equipment.
WARNING:
Do not wear loose clothing, neckties, rings, bracelets, or other jewelry to get caught in
moving parts. Nonslip footwear is recommended. Wear protective hair covering to
contain long hair.
WARNING:
WARNING:
Don’t over reach. Keep proper footing and balance at all times. A rotating wheel can
catch an article of clothing and cause personnel injury.
Check damaged parts. Before further use of the buffer, a guard or other part that is
damaged should be carefully checked to assure that it will operate properly and perform
its intended function. Check for alignment of moving parts, binding of moving parts,
breakage of parts, mounting, and any other conditions that may affect its operation. A
guard or other part that is damaged should be properly repaired or replaced.
WARNING:
When starting a grinder for the first time, or after installing a replacement grinding wheel,
it is most important that the operator stand aside for at least one minute of rotation at full
speed. This is the correct practice since debris in the wheel may be thrown out during the
first moments the machine is in operation.
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SAFETY NOTICE Continued
Typical Buffer
Wheel Flanges
Arbor Nut
with Vinyl Cover
Wheel Flanges
Spacer
Buffer
Arbor
Arbor Nut
with Vinyl Cover
Buffer
Arbor
Spacer
On−Off Switch
Installation
WARNING:
When you receive your unit, there are several things you should do immediately.
1. Observe the condition of the shipping container and report any damage immediately to
the commercial carrier that delivered the product.
2. Verify that the part number you received is the same as the part number listed on your
purchase order.
When starting a grinder for the first time, or after installing a replacement grinding wheel,
it is most important that the operator stand aside for at least one minute of rotation at full
speed. This is the correct practice since debris in the wheel may be thrown out during the
first moments the machine is in operation.
3. Mount buffer on solid bench. The buffer must be securely bolted to a rigid mounting
surface. If a pedestal is used, first bolt pedestal securely to floor and then bolt buffer to
pedestal.
4. Check buffer nameplate to make certain the rating is correct for the power source,
voltage and frequency. See electrical and grounding instructions for electrical service
connection.
5. Install soft cloth buffing wheel (see Typical Buffer Figure)
a. Remove arbor nut, spacer and outer wheel flange.
b. Place the buffer wheel on the arbor.
c. Install the outer wheel flange, spacer and arbor nut.
d. The arbor nut should be tightened just enough to prevent the wheel slipping on the
arbor and the vinyl arbor nut cover must be in place.
When starting buffer for the first time or after installing replacement wheel, it is most important
that the operator stand aside for at least one minute. Debris in the wheel may be thrown out
during the first moments the machine is in operation.
Electrical Instructions
Single phase buffers are equipped with cord and grounding type plug for 115 volts. To use
with a different voltage, see instructions provided to make wiring changes. All attachment
plugs and any receptacles must be replaced with devices rated for the voltage for which the
buffer is reconnected. Table 1 indicates the minimum wire size. Be sure to comply with NEC
and local wiring codes.
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Grounding Instructions
WARNING:
Be sure the system is properly grounded before applying power. Do not apply power
before you ensure that grounds are connected. Electrical shock can cause serious or fatal
injury. Follow the National Electrical Code (NEC) and local codes for the safe installation
of this equipment.
1. All grounded, cord−connected grinders:
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 grinder 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. Do not
modify the plug provided. If it will not fit the outlet, have the proper outlet installed by a
qualified electrician.
Improper connection of the equipment−grounding conductor can result in a risk of
electric shock. The “Green” insulated wire (with or without yellow stripes) is the
equipment−grounding conductor. If repair or replacement of the electric cord is
necessary, do not connect the equipment−grounding conductor to a live terminal. Check
with a qualified electrician or serviceman if the grounding instructions are not completely
understood, or if in doubt as to whether the tool is properly grounded.
Use only 3−wire extension cords that have 3−prong grounding plugs and 3−pole
receptacles that accept the tool’s plug.
Repair or replace damaged or worn cord immediately.
2. Grounded, cord−connected grinders intended for use on a supply circuit having a
nominal rating less than 150 volts.
This grinder is intended for use on a circuit that has an outlet that looks like the one
illustrated in Figure A or B.
Figure A
Figure B
Cover of
Grounded
Outlet Box
Grounding
Blade
Grounding
Blade
3. Permanently connected grinders:
This grinder should be connected to a grounded, metal, permanent wiring system; or to
a system having an equipment−grounding conductor.
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Operation
WARNING:
Do not operate this buffer until you are sure that you are completely familiar with the safe
operation of the buffer, all accessories and safety equipment. Improper use can lead to
severe injury. This manual defines proper use of this equipment. Before using this
equipment for any other use, please consult Baldor. Contact Baldor if you do not
understand any procedure or operation concerning this buffer or this manual.
WARNING:
When starting a grinder for the first time, or after installing a replacement grinding wheel,
it is most important that the operator stand aside for at least one minute of rotation at full
speed. This is the correct practice since debris in the wheel may be thrown out during the
first moments the machine is in operation.
Always use safety glasses with side shields (or full face shield) when operating buffer. Also
use face or dust mask if cutting operation is dusty. Everyday eyeglasses only have impact
resistant lenses, they are NOT safety glasses.
Check that the On−Off switch is in the “OFF” position, and the shaft moves freely. When
starting buffer for the first time or after installing replacement wheel, it is most important that
the operator stand aside for at least one minute. Debris in the wheel may be thrown out
during the first moments the machine is in operation. After connecting buffer to power
source, turn switch on. Buffer should come up to speed smoothly and without vibration. If
buffer does not, shut buffer off immediately and determine reason.
Always keep hands at least 2 inches from wheels. If the work piece is small, use a holder to
keep hands 2 inches or more from wheels.
Use extreme care when polishing irregularly−shaped or small objects as they can be caught
in the wheel and hurled outward with damaging force.
Always polish from the front of the machine. If the work piece is caught by the wheel, the
wheel will normally spin the piece downward.
Buff on face (periphery) of the wheel only.
Maintenance
Replace worn buffing wheel as necessary. After a wheel is replaced, the arbor nut should be
tightened just enough to prevent the wheel slipping on the arbor and the vinyl arbor nut cover
must be in place.
Motor and pulley bearings are lubricated for life and do not require additional lubrication.
Wipe off buffing dust to prevent accumulation.
Replace damaged parts immediately to maintain safety of machine.
Table 1 Minimum Gauge Wire Size
Volts
115V
230V
Total Length of Cord (Cord + Extension, in Feet)
25
50
50
100
200
150
300
Ampere Rating
100
More Than
Not More Than
AWG
0
6
6
18
18
16
14
16
16
16
12
16
14
14
14
12
12
10
12
16
10
12
Not Recommended
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LIMITED WARRANTY
Unless otherwise provided, Baldor grinders are warranted against defects in Baldor workmanship and
materials for a period of Thirty−Six months. All warranty claims must be submitted to a Baldor repair facility
prior to the expiration of the warranty period. Baldor shall have no responsibility or liability for any defect,
latent or otherwise, discovered after the expiration of the warranty period provided herein. Extended
warranties are available for certain Baldor products. These warranties are described in Baldor’s catalog and
other sales literature. Extended warranties are subject to the terms and conditions of this Limited Warranty
as modified by the additional terms of the extended warranty. If a Baldor product is defective due to Baldor
workmanship or materials and the defect occurs during the warranty period, then Baldor will either repair the
product or replace it with a new one, whichever Baldor believes to be appropriate under the circumstances.
Warranty service is available for all Baldor products from Baldor’s Customer Service Department in Fort
Smith, Arkansas, and from Baldor repair facilities. A list of Baldor’s repair facilities may be obtained by
contacting Baldor at: Baldor Electric Company, 5711 R.S. Boreham, Jr. St., Fort Smith, Arkansas,
479−646−4711 (phone), 479−648−5792 (fax). All Baldor products requiring warranty service shall be
transported or shipped freight pre−paid, at the risk of the party requiring warranty service, to Baldor’s
Customer Service Department in Fort Smith, Arkansas or to a Baldor repair facility. Written notification of the
alleged defect in addition to a description of the manner in which the Baldor grinder is used, and the name,
address and telephone number of the party requiring warranty service must be included. Baldor is not
responsible for removal and shipment of the Baldor product to the service center nor for the reinstallation of
the Baldor product upon its return to the party requiring warranty service. Customers who are unable to take
or ship the Baldor product to a Baldor repair facility, or who desire a repair to be made by other than a Baldor
repair facility, should contact Baldor’s Customer Service Department at 479−646−4711. Repair by anyone
other than a Baldor repair facility must be approved in writing by Baldor in advance of such service.
Problems with Baldor products can be due to improper maintenance, faulty installation, non−Baldor
additions or modifications, or other problems not due to defects in Baldor workmanship or materials. If a
Baldor repair facility determines that the problem with a Baldor product is not due to defects in Baldor
workmanship or materials, then the party requiring warranty service will be responsible for the cost of any
necessary repairs. Parties requiring warranty service not satisfied with a determination that a problem is
outside of warranty coverage should contact Baldor’s Customer Service Department at 479−646−4711 for
further consideration.
EXCEPT FOR THE EXPRESS WARRANTY SET FORTH ABOVE, BALDOR DISCLAIMS ALL OTHER
EXPRESS AND IMPLIED WARRANTIES INCLUDING THE IMPLIED WARRANTIES OF FITNESS FOR A
PARTICULAR PURPOSE AND MERCHANTABILITY. NO OTHER WARRANTY, EXPRESS OR
IMPLIED, WHETHER OR NOT SIMILAR IN NATURE TO ANY OTHER WARRANTY PROVIDED HEREIN,
SHALL EXIST WITH RESPECT TO THE GOODS SOLD UNDER THE PROVISIONS OF THESE TERMS
AND CONDITIONS. ALL OTHER SUCH WARRANTIES ARE HEREBY EXPRESSLY WAIVED BY THE
BUYER. UNDER NO CIRCUMSTANCES SHALL BALDOR BE LIABLE OR RESPONSIBLE IN ANY
MANNER WHATSOEVER FOR ANY INCIDENTAL, CONSEQUENTIAL OR PUNITIVE DAMAGES, OR
ANTICIPATED PROFITS RESULTING FROM THE DEFECT, REMOVAL REINSTALLATION, SHIPMENT
OR OTHERWISE.
This is the sole warranty of Baldor and no other affirmations or promises made by Baldor shall be deemed to
create an express or implied warranty. Baldor has not authorized anyone to make any representations or
warranties other than the warranty contained herein.
P.O. Box 2400 Ft. Smith, AR 72901−2400
(479) 646−4711
Fax (479) 648−5792
Printed in USA
9/03
© Baldor Electric Company
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