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MODEL 1272
I
NSTRUCTION
MANUAL
BURR KING MFG. CO., INC
1220 Tamara Lane
Warsaw, MO 65355
www.burrking.com
(660)438-8998 • 800-621-2748
Fax (660)438-8991
BURR KING MODEL 1272
GRINDER
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BURR KING MFG. CO., INC.
1220 TAMARA LANE
WARSAW MO 65355
WWW.BURRKING.COM
(660) 438-8998 (800) 621-2748
FAX (660) 438-8991
June, 2007
Burr King Manufacturing Company. Inc. warrants the below product to be free in material and workmanship. The period of warranty is 1 year
(90 days for vibratory bowls of 20 quart and lesser volume) from the date of purchase. No warranty is provided for products that have been
modified, abused, handled carelessly, where repairs have been made or attempted by others, or for freight damage. No warranty is provided for three
phase electric motors, cont rol lers, etc. when the motors, controllers are not protected by magnetic starters that were sup plied and installed by Burr
King Manufacturing Company. Inc. No other warranty, written or verbal is authorized by Burr King Manufacturing Company, Inc.
During the warranty period Burr King Manufacturing Company, Inc (or its authorized suppliers or agents) will replace or repair the below
product without charge if the product is found by Burr King Manufacturing Company, Inc. to be defective. To receive warranty services you must
contact Burr King Manufacturing Company, Inc. and receive authorization fir warranty service. Unless otherwise author i zed by Burr King
Manufacturing Company, Inc. Products (see * below) must be returned to the factory to receive warranty service.
*Motors, speed controllers, and certain other accessories are warranted by their respecti ve manufactures. To receive warranty service on these
items you must contact a brand label service center that supports the product in need of service. Burr King Manufacturing Company; Inc. will assist
you in locating a service center.
For the first thirty days after purchase, and when Burr King Manufacturing Company, Inc. authorizes warranty service, we will pay normal and
necessary surface freight charges both ways (except for items in *). After thirty days the customer is responsible for all freight charges. Where
possible Burr King Manufacturi ng Company, Inc. may elect to make on site service and/or repairs necessary to return the product to serviceable
condition.
To assure prompt warranty service it is necessary that you complete and return the below warranty information to Burr King Manufacturing
Company, Inc. please FAX or MAIL at your convenience.
Product model: _______________________ Serial number: _______________________
Date Purchased: ______________________ Purchased from: ______________________
Address: ____________________________ City: _______________________State/Prov: _________Postal code________
Your company name: _____________________________________________
Address: _____________________________City: _______________________State/Prov: __________Postal code________
Phone: _______________________________Fax: _______________________Email: _______________________________
Your name: ___________________________Title: _______________________
How did you learn about Burr King products?
Trade show___Web___Industrial Distributor ___Advertisement ___Other __________________________Which one:________________________
What is the intended use of this product? ______________________________________________________________________________________
Please indicate the general work types performed at you r company, check all that appl y
Fabrication___Machining___Casting__Molding___Welding___Finishing___Assembly___Research___Other___
Please indicate the primary product focus of your company; check all that appl y,
Aircraft/Missile___Automotive___Contract machine___Contract Fabrication___ Agricultural____Maintenance___ Recreational___
Job shop___Foundry___Construction___Arts___Orthopedic___Dental___Medical___Other_________________________________
Please tell us what we can do to improve our products
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
May we contact you? Yes___No___
Thank you for purchasing Burr King products!
:
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Register online @
www.burrking.com
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August 29, 2007
BURR KING MFG. CO., INC.
1220 TAMARA LANE
WARSAW MO 65355
WWW.BURRKING.COM
660
438-8998
FAX
660
LETTER OF AUTHENTICITY
800
621-2748
438-8991
This letter is to certify that all Burr King Belt grinders, Disc
grinders, Polishing machines Vibra King Chambers and Bowls are
manufactured and assembled in the United States of America.
Tariff number 847990 criterion A )
(
Don Mac Carthy
President
See our catalog at www.burrking.com contact us at [email protected]
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BURR KING MFG. CO., INC.
1220 TAMARA LANE
WARSAW MO 65355
WWW.BURRKING.COM
(660) 438-8998 (800) 621-2748
FAX (660) 438-8991
February 2005
OPERATOR, and OPERATING AREA SAFETY
Subject equipment includes Grinders, buffers, polishers, and other rotating equipment. Serious injury
or death may occur if minimum safety precautions are not understood, and obeyed by operators and
those other persons who may be in the immediate vicinity of the subject equipment. Persons who
operate, or are in the immediate vicinity of the subject equipment must be properly trained in, and
use, minimum safety precautions and procedures for such machinery.
Minimum safety requirements to operate, or work in the immediate vicinity subject equipment:
1. Read and understand all operating instructions, manuals, labels, and other information provided with the
equipment.
2. Install the equipment according to manufacturer’s instructions.
3. Securely bolt the equipment to a rigid, structurally sound mounting surface.
4. Use and wear proper eye and face protection.
5. Use and wear proper protection for the body, hands, fingers, feet, and leg s.
6. Review and understand all machine guards, adjustments, and points of exposure to potential injury.
7. Do not remove, tamper with, or otherwise alter, equipment guards, and other safety features.
8. Insure the machine is adjusted, and remains adjusted according to manufacture’s requirements.
9. Maintain the equipment in good operating condition.
10. Have another person who is knowledgeable in proper and safe operation of the subject equipment
demonstrate proper and safe operation to all operators, and to those persons who might be in the immediate
vicinity of the subject equipment.
11. Use work piece holding devices when ever possible that diminish the possibility that persons will come
in contact with moving machine pieces, or spark/debris output from the machine.
12. Use spark and debris arresting apparatus. Such apparatus should be connected to the machine so as to
contain dust and debris that is generated, and to suppress sparks thereby limiting human inhalation risk, and
the risk of fire or explosion.
13. Use appropriate inhalation apparatus to protect person from ingestion and/or inhalation of sparks, debris,
smoke, particulates, etc.
14. Avoid mixing different metals, alloys, and materials. To mix such materials might create a fire or
explosion hazard.
15. Protect persons from work pieces, particulates, etc. that could be forcibly ejected from the machine. For
example, a buffing wheel or grinding belt can “grab” a work piece while the work piece is being buffed,
polished, ground, or otherwise conditioned, resulting in forcible ejection toward the operator or those in the
vicinity of the machine. The use of leather aprons, gloves, and eye shields are examples of protective gear
that may be effective. In general do not grind, buff, or otherwise engage the traveling belt, wheel, or disc
surface with the work piece pointing into the direction from which the belt, wheel, or disc is traveling.
However, if you choose to do so be aware the work piece may lodge in the traveling belt, wheel, or disc and
be forcibly, and dangerously ejected.
16. Do not operate this machine if the gap (nip point) between a moving belt, wheel or disc and the work
support surface exceeds 1/8 inch.
17. Do not operate this machine if the gap between the moving abrasive belt, disc or wheel and the adjacent
face
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of the work rest (or table) will permit passage of the work piece through the gap (nip point). Note, however,
that certain alloys such as titanium may create conditions where grinding debris can accumulate in a tight gap
creating a potential fire hazard. When in doubt consult with your safety officer. Failure to observe this
warning may result in the work piece or other item being caught in this gap, and/or being forcibly ejected.
Failure to heed this warning may cause serious bodily harm to the operator and/or bystanders. NEVER USE
THIS EQUIPMENT IF YOU ARE NOT PROP ERLY TRAINED IN ITS OPERATI ON and/or SAFE
USE! IF IN DOUBT STOP and ASK FOR GUIDANCE!
18. Never position the work rest table at an acute angle between the top of the work rest table and the moving
belt or wheel. Doing so will create “nip point” that can cause serious injury should an operator body part
become entangled (pulled into) the nip point created by this acute angle.
19. Do not operate the equipment, or allow others to operate the equipment without proper training in these
and other rotating machinery safety requirements.
20. Do not perform maintenance on the equipment unless you are fully qualified to do so, and understand all
necessary safety and operating requirements.
21. Do not leave the machine unattended while it is running.
22. Correct equipment or safety problems immediately. Do not operate the equipment when it requires
maintenance, or correction.
23. Install and use high quality abrasive belts, wheels, discs, media, etc., as appropriate to your machine.
Understand and follow the operating requirements provided by the manufacturer of these materials.
Rotational Speed Warning, Contact Wheels
Scope: Contact wheels manufactured by Burr King Manufacturing Company, Inc., which have rubber or
urethane tires. Examples include but are not limited to stock codes 202, 302, 402, 502,702, 802, 902, 1002,
1202 and variants. Variants have stock codes that begin with the base number; i.e. 802-S-55 is an 802
variant.
Users are warned not to exceed the below listed revolutions per minute (RPM) on the subject wheels. Failure
to heed this warning may lead to tire de-bonding, fragmentation, or other mechanical failure. Such failures
may cause serious personal injury to operators or bystanders, and/or cause property damage. All Burr King
products are warranted for various time periods to be free of material and/or workmanship defects. Burr King
Manufacturing Companies standard warranty policy is summarized as follows for contact wheels. 1 year
from date of purchase if mounted on a Burr King machine purchased on the same date or 90 days if
purchased as a spare or replacement part. Our warranty does not apply to wheels that are mounted on
products not manufactured by Burr King Manufacturing Company, Inc. Users who mount Burr King
manufactured contact wheels on product not manufactured by Burr King Manufacturing Company, Inc. do so
at their own risk and assume all liability for having so mounted the contact wheel(s).
Remember good safety practice demands guarding to protect operators and bystanders from wheel failure
and/or debris. Never use the subject contact wheels without proper guarding that meets commonly accepted
safe practice. See OSHA, U/L, CSA, CE, ISO and other respected
Stock code
Contact Wheel Maximum Safe RPM
202, 302 10000
402, 502, 702 802 4400
902, 1002 2200
1202 1600
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safety standards.
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Occupational Noise Exposure
Burr King products produce levels of noise consistent with their intended purposes. The level and spectral
content of noise produced is dependent on the product type, the degree that the product is maintained in
proper operating condition, the abrasive/media and accessories used, the specific application, and the
surrounding environment. Noise levels produced by various Burr King grinders and polishers, as measured at
the Burr King factory, range from 80 to 93 decibels. Product operators and persons in the immediate product
vicinity should be protected from excessive noise does levels as prescribed in OSHA regulation 29, piece
1910.95 titled “Occupational Noise Exposure”.
ROTATING EQUIPMENT CAN BE DANGEROUS TO OPERATORS AND THOSE WHO MAY BE
IN ITS IMMEDIATE OPERATING VICINITY. IT IS THE ABSOLUTE AND DIRECT
RESPONSIBILITY OF PURCHASERS, MANAGERS, AND OPERATORS OF THIS EQUIPMENT
TO UNDERSTAND AND OBEY THE FOREGOING MINIMUM
REQUIREMENTS. IF YOU HAVE QUESTIONS OR SAFETY CONCERNS REGARDING
OPERATING THE SUBJECT EQUIPM ENT PLEASE CALL YOUR AUTHORIZED BURR KING
DISTRIBUTOR, OR BURR KING MANUFACTURING AT 1-800-621-2748. YOUR SAFETY IS
OUR FOREMOST CONCERN!
Burr King Manufacturing disclaims any and all responsibility for injuries, damage, loss of income, or other
adverse consequence as might be incurred by purchasers, managers, and operators of this equipment.
OPERATING SAFETY
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BURR KING MFG. CO., INC.
1220 TAMARA LANE
WARSAW MO 65355
WWW.BURRKING.COM
(660) 438-8998 (800) 621-2748
FAX (660) 438-8991
January 2001
Operating instructions for Burr king model 1272
Overview: the model 1272 burr king is a multi-wheel, rear wheel drive abrasive belt grinder that operates at
select
able belt speeds. Various accessories can be mounted on the machine that togetf1er with the base
machine provide contact, work rest, platen, and slack belt grinding. The machine requires minimal
maintenance.
Safety precautions, to avoid personal injury or death:
*Operators must always wear appropriate eye, hand, and bo
dy protection when grinding with the model
1272.
*Never perform maintenance on the model 1272 with the main po
wer supply connected.
*Stay clear of all rotating parts to the model 1272.
*Keep clear of the model 1272 and its grinding debris stream.
*Never permit flammable material near the m
odel 1272 while grinding.
*Never mix materials while grinding that may be chemically incompatible. To do so may create a serious fire
or health hazard. Examples include titanium
, tantalum, etc.
General operating instructions(refer to outline drawing M1272 for control location and
Belt installation:
1. Open the safety guard door
2. Press tile red button on the belt tension control and
to release ten
sion
release the lever forward, lift handle with black button
3. Remove the old belt and discard
4. Install the new belt taking care to observe belt direction as
ay be indicated on the back side of the belt.
m
Install the belt so that the belt preferred direction of travel will be counter clock wise when viewing the
Model 1272 from its left switching wiring.
Note: the direction of belt travel can be reversed by s
witching wiring connections within the motor
wiring box. Follow the instructions on the motor label plate.
5. Press the belt tension control to the rear until it is about half way through the
provided spring travel. This
will provide normal belt tension and the tensioning control will automatically adjust for minor belt stretching
as may occur
6. Apply power to the model 1272
Belt tracking:
I. Tension the belt as required above
2. If the belt is tracking off of the center of the contact wheel, adjust the belt tracking control as required to
center the belt.
identification)
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Changing belt speed:
1. Disconnect main power
2. Open the drive belt safety cover
3. Reposition the drive belt to the desired speed position
Installing the 1275 yoke:
1. Remove the contact wheel (8” standard) by loosening and removing the 5/8-18 flex nut and flange washer.
(also rem
ove workrest support if installed)
2. Install the 1275 yoke over the contact wheel bearing housing.
3. Tighten the set screw that is to the rear of the housing that is fitted over the bearing housing.
4. Install the 5/16 allen bolt and washer through the half moon slot
5. Position the 1275 as required for the best work position
6. Tighten the allen bolt
7. The position of the 1275 effects belt tension, it may be necessary
to loosen the rear wheel mount locking
device and reposition the rear wheel to achieve proper belt tension
8. Tension and track the belt as required
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Installing the 1276 or 1277:
1. Remove the platen assembly from the 1275 yoke
2. Remove the lower contact wheel by loosening the retaining set screw and sliding the wheel away
from the
assembly
3. Install the fork assembly using two 1/4-20 allen bolts, securing the ass
embly. To the lower front of the
1275 yoke
4. Install, tension and track the belt as required
Installing the 1411 or 1412 internal grinding attachments:
1. Remove the contact wheel and/or the 1275 yoke if installed
2. Install the 1411/1412 over the contact wheel housing
3. Position the 1411/1412 to the desired position and t
ighten the clamping device
4. Install and track the belt
Installing the 1002 and other contact wheel sizes:
I. All available contact wheels can be installed on the
model 1272 by using various combinations of idler,
quantities, diameters, and positions. All wheel accessories are provided with the necessary compliment of
other wheels if they are not part of the standard machine configuration. The Model 1272 will accept tension
and track many combinations of wheels because of its flexible design. This permits many grinding eometries
to be achieved.
Maintenance:
1. Drive belt tension should be periodically checked to
assure the belt has about 1/2 inch deflection under
moderate pressure. Adjust the drive belt tension by loosening the motor mount bolts and retightening after
setting belt tension.
2. There are no grease, or oil fittings on the model 1272. Moving surfaces may be periodically oiled with a
thin film
of light machine oil. Excessive oil attracts dust and debris and should be avoided.
3. Cosmetic surfaces may be cleaned with a clean cloth.
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Burr King Model 1272 Abrasive Belt Grinder
The model 1272 is a multi-wheel variable speed abrasive belt grinder that provides contact wh
eel, platen,
work rest, and slack belt grinding. The grinder can be configured to grind several radii dimensions by
selecting various sized contact wheels. Belt speed is chosen by selecting different motor drive belt positions
on a multiple position drive pulley arrangement. Several accessories are available that extend the capability
of the grinder.
Model 1272 abrasive belt grinder features:
• 1” or 2” belt
• 11/2
hp, 1725 (1425) rpm, 60(50) hertz, single phase motor*
• Selectable belt speed from
• 7” (175mm
• Positive belt t
• Quick belt change and tension adjustm
width by 72” belt length (25mm or 50mm x 1800mm)
677 to 6320 sfpm (205 to 1915 sfpm)
) rear wheel drive
racking
ent
• Cast iron/steel construction
• Precision m
• Well balanced and true co
*grinders driven by 50 hertz ac power will operate at 5/6 60 hertz belt speed
*3 horsepower also available
achined
ntact wheels and idlers
Model 1272 accessories:
1275 yoke assembly features:
Work rest 2 1/2” x 3 1/2” (63mm x 88mm)
Back-up platen 2” x 9’ (50mm x 225mm)
2” x 2” (50mm x 50mm) contact wheels, two
Required for 1276 or 1277 fork arm
Accessories for the 1275 include:
302k 2” x 3” diameter (50mm x 75mm) idler wheel
410k 2”x 4” diameter (50mm x 100mm) idler wheel
1276 uni-arm
2” x 72” (50mm x 1800mm) belt size
Choice of contact wheel diameter 1/2” (13mm), 3/4” (19mm), 1” (25mm), 1 1/2” (38mm)
Requires 1275 yoke assembly
1277 fork
Same as above but with 2” (50mm) belt width
Requires 1275 yoke assembly
1002 contact wheel
2” x 10” diameter (50mm x 250mm)
55 or 90 shore tire hardness, speciflj
Mounts to 1272 without change of standard wheel diameters
Also plain or serrated
1242 safety abrasive belt guard
Fits standard model 1272
Mounting hardware included
Hinged access door with latch
Guards all wheel pinch points
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1411 full access internal grinding attachment
1” x 72” (50mm x 1800mm) belt size
Optional contact wheel sizes are 9/16” (14mm), 3/4” (19mm), and 1 1/2” (38mm)
Installs on standard model 1272
Arm extension of 5” (125mm)
1412 full access internal grinding attachment
2” x 72” (100mm x 1800mm) belt size
Optional contact wheel sizes are 9/16” (14mm), 3/4” (19mm), and 1 1/2” (38mm)
Installs on standard model 1272
Arm extension of 5” (125mm)
Model 1272 and accessories price list
Part number Description Price/each in US dollars
1272 Abrasive Belt Grinder $ CALL
1242 safety
1275 yoke $
1276 l” uni-arm
055 9/16” x
056 3/4” x i” cont
057 1” x 1” conta
058 1-1/2” x
1277 2” fork arm
038 9/16” x
039 3/4” x 1” con
040 1” x 1” conta
041 1-1/2” x
Ds-12 dust scoop
202k 2” x 2” idler
302k 2” x 3” idler
410k 2” x 4” idler
302 2” x 3” conta
412 2” x 4” conta
402 2” x 5” conta
7022 2” x 7” conta
902 2” x 8” conta
1002 2”x 10” conta
1212 slide for 72”
1411 1” full access internal grinding attachment
1412 2” full access internal grinding attachment
1” contact wheel for 1277 fork arm $ CALL
abrasive belt guard $ CALL
CALL
$ CALL
1” contact wheel for 1276 uni-arm $ CALL
act wheel for 1276 uni-arm $ CALL
ct wheel for 1276 uni-arm $ CALL
1” contact wheel for 12.76 uni-arm $ CALL
$ CALL
tact wheel for 1277 fork arm $ CALL
ct wheel for 1277 fork arm $ CALL
1” contact wheel for 1277 fork arm $ CALL
$ CALL
wheel $ CALL
wheel $ CALL
wheel $ CALL
ct/drive wheel $ CALL
ct/drive wheel $ CALL
ct/drive wheel $ CALL
ct wheel $ CALL
ct wheel $ CALL
ct wheel $ CALL
belt use $ CALL
$ CALL
$ CALL
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