1/4-Inch Right Angle Grinder Operator's Manual 1
CAUTION
RISK OF INJURY!
READ MANUAL BEFORE OPERATING!
THIS MANUAL IS AN IMPORTANT PART OF THE ANGLE GRINDER
AND SHOULD REMAIN WITH THIS UNIT WHEN YOU SELL OR RENT IT.
AT-3305-J 1/4-INCH
RIGHT ANGLE
DIE GRINDER
2 1/4-Inch Right Angle Grinder Operator's Manual
Congratulations on the purchase of your new John Deere 1/4-Inch Right Angle Grinder!
You can be assured your angle grinder was constructed and designed with quality and
performance in mind. Each component has been rigorously tested to ensure the highest
level of acceptance.
John Deere 1/4-Inch Right Angle Grinder is designed for grinding and deburring operations
in confined areas. This rear exhaust tool features a built-in regulator for convenient speed
control and a lock-off lever to prevent accidental starts.
This operator's manual was compiled for your benefit. By reading and following the simple
safety, installation, operation, maintenance and troubleshooting steps described in this
manual, you will receive years of trouble-free operation from your new angle grinder. The
contents of this manual are based on the latest product information available at the time of
publication. The manufacturer reserves the right to make changes in price, color, materi-
als, equipment, specifications or models at any time without notice.
Once the unit has been removed from the box, immediately write in the serial number of your
unit in the space provided below.
SERIAL NUMBER_________________________________
Inspect for signs of obvious or concealed freight damage. If damage does exist, file a claim
with the transportation company immediately. Be sure that all damaged parts are replaced and
that the mechanical problems are corrected prior to operation of the unit. If you require service,
contact your Customer Service.
Mi-T-M
®
Corporation, 8650 Enterprise Drive, Peosta, IA 52068
1-877-JD-KLEEN / (1-877-535-5336) Fax 563-556-1235
Monday - Friday 8:00 a.m. - 5:00 p.m. CST
Please have the following information available for all service calls:
1. Model Number
2. Serial Number
3. Date and Place of Purchase
Introduction
1/4-Inch Right Angle Grinder Operator's Manual 3
Table of Content
INTRODUCTION .................................................................................................... 2
TABLE OF CONTENTS ......................................................................................... 3
SAFETY .................................................................................................................. 4-6
RECOGNIZE SAFETY INFORMATION ................................................ 4
UNDERSTAND SIGNAL WORDS......................................................... 4
READ OPERATING INSTRUCTIONS................................................... 4
ALWAYS WEAR APPROVED EYE PROTECTION ............................. 5
HEARING PROTECTION IS RECOMMENDED ................................... 5
WEAR RESPIRATORY PROTECTION ................................................ 5
AVOID PROLONGED EXPOSURE TO VIBRATION............................ 6
90 PSIG MAXIMUM ................................................................6
USE ACCESSORIES RATED AT TOOL RPM OR HIGHER................ 6
INSTALLATION...................................................................................................... 7
RECOMMENDED AIR LINE SET-UP.................................................... 7
OPERATION........................................................................................................... 8
MAINTENANCE ..................................................................................................... 8
TROUBLESHOOTING ........................................................................................... 9
SPECIFICATIONS.................................................................................................. 9
STATEMENT OF WARRANTY .............................................................................. 10-11
FRENCH ................................................................................................................. 12-21
SPANISH ................................................................................................................ 22-31
4 1/4-Inch Right Angle Grinder Operator's Manual
READ OPERATING INSTRUCTIONS
Always become familiar with all the instructions and
warnings before operating any pneumatic tool.
RECOGNIZE SAFETY INFORMATION
This is the safety alert symbol. When you see this symbol
on your pneumatic tool or in this manual, be alert to the
potential for personal injury.
Follow recommended precautions and safe operating
practices.
UNDERSTAND SIGNAL WORDS
A "DANGER, WARNING or CAUTION" safety warning will be
surrounded by a "SAFETY ALERT BOX." This box is used to
designate and emphasize Safety Warnings that must be
followed when operating this tool.
Accompanying the Safety Warnings are "signal words" which
designate the degree or level of hazard seriousness. The
"signal words" used in this manual are as follows:
DANGER: Indicates an imminently hazardous situation
which, if not avoided, WILL result in death or
serious injury.
WARNING: Indicates a potentially hazardous situation
which, if not avoided, COULD result in death or
serious injury.
CAUTION: Indicates a potentially hazardous situation
which, if not avoided MAY result in minor or
moderate injury.
ALWAYS PROVIDE A COPY OF THIS MANUAL TO
ANYONE USING THIS EQUIPMENT. READ ALL
INSTRUCTIONS BEFORE OPERATING THIS TOOL
AND ESPECIALLY POINT OUT THE "SAFETY
WARNINGS" TO PREVENT THE POSSIBILITY OF
PERSONAL INJURY TO THE OPERATOR.
Safety
1/4-Inch Right Angle Grinder Operator's Manual 5
ALWAYS WEAR APPROVED EYE PROTECTION
Impact resistant eye protection should meet or
exceed the standards as set forth in the United
States ANSI Z87.1, Occupational and Educational
Eye and Face Protection. Look for the marking
Z87.1 on your eye protection to insure that it is an
approved style. For further information, ANSI Z87.1,
Occupational and Educational Eye and Face
Protection, is available from the American National
Standards Institute, Inc., 11 West 42nd Street, New
York, NY 10036.
HEARING PROTECTION IS RECOMMENDED
Hearing protection should be used when the noise
level exposure equals or exceeds an 8 hour time-
weighted average sound level of 85 dBA. Process
noise, reflective surfaces, other tools being operated
nearby, all add to the noise level present in your
work area. If you are unable to determine your noise
level exposure, we recommend the use of hearing
protection.
WEAR RESPIRATORY PROTECTION
It is advisable, when using this tool for extended
periods of time, to wear a protective mask. This will
help prevent the inhalation of the fine dust produced
while using this tool. Prolonged breathing of dust
particles may lead to future respiratory problems.
Some dust created by power sanding, sawing,
grinding, drilling and other construction activities
contain chemicals known to cause cancer, birth
defects or reproductive harm. Some examples of
these chemicals are:
• Lead from lead-base paints
• Crystalline Silica from bricks, cement and other
masonry products.
• Arsenic and Chromium from chemically treated
lumber.
Your risk from these exposures varies, depending
on how often you do this type of work. To reduce
your exposure to these chemicals, work in a well
ventilated area and work with approved safety
equipment such as those dust masks that are
specially designed to filter out microscopic particles.
WARNING
6 1/4-Inch Right Angle Grinder Operator's Manual
AVOID PROLONGED EXPOSURE TO VIBRATION
Pneumatic tools can vibrate during use. Prolonged exposure
to vibration or very repetitive hand and arm movements, can
cause injury. Stop using any tool if discomfort, tingling feeling
or pain occurs. You should consult your physician before
resuming use of the tool.
90 PSIG MAXIMUM
Designed to operate at an air pressure of 90 pounds per square
inch gauge pressure (90 PSIG) maximum, at the tool. Use of
higher air pressure can, and may cause injury. Also use of
higher air pressure places the internal components under loads
and stresses they were not designed for, causing premature
tool failure.
NOTE: The air supply should be clean and dry, preferably
lubricated. For best results drain the moisture from your
compressor daily.
USE ACCESSORIES RATED AT TOOL RPM OR HIGHER
Always use grinding wheels with an RPM rating that meets or
exceeds the tool RPM rating. Always examine wheels for chips,
cracks or signs of damage before mounting. Never use grinding
wheels that have been dropped or exposed to: water, solvent or
extreme temperature changes. The grinder’s speed should be
checked with a tachometer before mounting a wheel; after all
repairs and whenever the grinder is issued for use.
WARNING
CAUTION
1/4-Inch Right Angle Grinder Operator's Manual 7
Always use clean dry air. Excessive moisture and dirt will greatly reduce the life of any
air motor. We recommend the installation of an in-line filter-regulator-lubricator as
close to the tool as possible.
A 3/8" air hose is required up to a length of 8 ft. If more length is required a 1/2" air
hose should be connected to the 3/8" hose to ensure the tool has the necessary air
supply. Be sure all hoses and fittings are the correct size and tightly secured.
Designed to operate on 90 PSIG, lower pressure (below
90 PSIG) will reduce performance of the tool while higher air
pressure (over 90 PSIG) raises the performance of the tool
beyond its rated capacity and could cause serious damage to
tool and user.
Installation
RECOMMENDED AIR LINE SET-UP
8 1/4-Inch Right Angle Grinder Operator's Manual
Maintenance
LUBRICATION:
An automatic in-line filter-regulator-lubricator is recommended as it increases tool life
and keeps the tool in sustained operation. The in-line lubricator should be regularly
checked and filled with John Deere AT-4003 air tool oil. Proper adjustment of the in-line
lubricator is performed by placing a sheet of paper next to the exhaust ports and
holding the throttle open approximately 30 seconds. The lubricator is properly set when
a light stain of oil collects on the paper. Excessive amounts of oil should be avoided.
In the event that it becomes necessary to store the tool for an extended period of time
(overnight, weekend, etc.), it should receive a generous amount of lubrication at that
time. The tool should be run for approximately 30 seconds to ensure oil has been
evenly distributed throughout the tool. The tool should be stored in a clean and dry
environment.
Recommended lubricants: Use John Deere AT-4003 air tool oil or any other high
grade turbine oil containing moisture absorbent, rust inhibitors, metal wetting agents
and an EP (extreme pressure) additive.
NOTE: The right angle gear assembly needs to be lubricated with an all purpose
grease such as John Deere AT-4003. The fill plug is located on the side of
the angle head assembly. Overfilling will slow down tool and also result in
grease leakage around the head.
Operation
PRE-OPERATION:
Before the tool is connected to the air supply, clear the air hose of accumulated dust
and moisture. Before removing a tool for service or changing accessories, make sure
the air line is shut-off and drained of air. This will prevent the tool from operating if the
throttle is accidentally engaged.
OPERATION:
Designed for use with mounted stones and burrs with a 1/4" mandrel rated at 25,000
RPM or higher. This tool has a lock-off lever throttle and an internal regulator. To
begin operation, grip tool and depress safety lock while engaging throttle. The built-in
regulator is located opposite the throttle lever, and will rotate fully and allows speed
adjustment of the tool.
To mount stones and other accessories, use the wrenches supplied with the tool.
Always disconnect air supply before changing any accessories. Hold spindle with one
wrench (11mm), while using the other wrench (19mm) to turn collet nut. Fully insert
mandrel into chuck and tighten until secured in collet.
Daily, before use, with no accessory, check spindle speed. Tighten spindle attach-
ments securely. The grinder should be gradually applied to the work surface until the
stone or burr becomes warm. Make smooth contact with the work and avoid any
bumping action or excessive force.
CAUTION: ONLY USE MOUNTED GRINDING STONES
OR BURRS RATED AT TOOL RPM OR
HIGHER. NEVER OPERATE TOOL
WITHOUT WEARING PROPER
PROTECTIVE GEAR.
1/4-Inch Right Angle Grinder Operator's Manual 9
Troubleshooting
Specifications
Loss of Power
1. Low air pressure
2. Improper lubrication or dirt
build up
3. Worn motor parts, or other
problems
1. Check air supply. For
rated performance, 90
PSI air pressure is
required at the tool, with
tool operating
2. Check for wet or dirty air.
Wet air tends to wash
lubricant away. Dirt or
foreign matter will
impede the action of the
motor. If dirt or water has
entered the tool, flush
with John Deere AT-
4003.
3. Contact your customer
service.
Symptom
Problem
Solution
Collet size ---------------------------------------1/4"
Maximum free speed-------------------------25,000 RPM
Overall length ----------------------------------7 1/2"
Weight--------------------------------------------1 lbs.
Average air consumption -------------------4 CFM
Air inlet -------------------------------------------1/4" NPT
Recommended hose size-------------------3/8" I.D.
Maximum operating pressure --------------90 PSI
10 1/4-Inch Right Angle Grinder Operator's Manual
Limited Warranty
John Deere Two-Year Limited Warranty. John Deere Die
Grinder, Models covered in this manual, are warranted by John
Deere to the original user against defects in workmanship or
materials under normal use for two years after date of purchase.
Any part which is determined to be defective in material or work-
manship and returned to an authorized service location, as John
Deere designates, shipping costs prepaid, will be, as the exclusive
remedy, repaired or replaced at John Deere’s option. For limited
warranty claim procedures, see PROMPT DISPOSITION below.
This limited warranty gives purchasers specific legal rights which
may vary from jurisdiction to jurisdiction.
Limitation of Liability. To the extent allowable under applicable
law, John Deere’s liability for consequential and incidental damages
is expressly disclaimed. John Deere’s liability in all events is limited
to and shall not exceed the purchase price paid.
Warranty Disclaimer. John Deere has made a diligent effort to
provide product information and illustrate the products in this
literature accurately; however, such information and illustrations are
for the sole purpose of identification, and do not express or imply a
warranty that the products are merchantable, or fit for a particular
purpose, or that the products will necessarily conform to the
illustrations or descriptions.
Except as provided below, no warranty or affirmation of fact,
expressed or implied, other than as stated in the “LIMITED
WARRANTY” above is made or authorized by John Deere.
1/4-Inch Right Angle Grinder Operator's Manual 11
Product Suitability. Many jurisdictions have codes and regulations
governing sales, construction, installation, and/or use of products for
certain purposes, which may vary from those in neighboring areas.
While John Deere attempts to assure that its products comply with
such codes, it cannot guarantee compliance, and cannot be
responsible for how the product is installed or used. Before
purchase and use of a product, review the product applications,
and all applicable national and local codes and regulations, and be
sure that the product, installation, and use will comply with them.
Certain aspects of disclaimers are not applicable to consumer
products: e.g., (a) some jurisdictions do not allow the exclusion or
limitation of incidental or consequential damages, so the above
limitation or exclusion may not apply to you; (b) also, some
jurisdictions do not allow a limitation on how long an implied
warranty lasts, consequentially the above limitation may not apply to
you; and (c) by law, during the period of this limited warranty, any
implied warranties of implied merchantability or fitness for a
particular purpose applicable to consumer products purchased by
consumers, may not be excluded or otherwise disclaimed.
Prompt Disposition. John Deere will make a good faith effort for
prompt correction or other adjustment with respect to any product
which proves to be defective within limited warranty. For any
product believed to be defective within limited warranty, first write or
call dealer from whom the product was purchased. Dealer will give
additional directions. If unable to resolve satisfactorily, write to the
Mi-T-M
®
Corporation at address below, giving dealer’s name,
address, date, and number of dealer’s invoice, and describing the
nature of the defect. Title and risk of loss pass to buyer on delivery
to common carrier. If product was damaged in transit to you, file
claim with carrier.
Mi-T-M
®
Corporation, 8650 Enterprise Drive, Peosta, IA 52068
1-877-JD-KLEEN / (1-877-535-5336) Fax 563-556-1235
Monday - Friday 8:00 a.m. - 5:00 p.m. CST
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1/4-Inch Right Angle Grinder Operator's Manual 13
Table Des Matieres
INTRODUCTION .................................................................................................... 12
TABLE DES MATIERESRE................................................................................... 13
SÉCURITÉ.............................................................................................................. 14-16
RECONNAÎTRE LES SYMBOLES DE MISE EN GARDE.................... 14
COMPRENDRE LES TERMES DE MISE EN GARDE ......................... 14
LISEZ LES INSTRUCTIONS D’UTILISATION ...................................... 14
PORTEZ TOUJOURS DES LUNETTES DE PROTECTION
HOMOLOGUÉES................................................................................... 15
LE PORT D’UN CASQUE EST RECOMMANDÉ .................................. 15
LE PORT D’UNE PROTECTION RESPIRATOIRE EST
RECOMMANDÉ ..................................................................................... 15
ÉVITEZ UNE EXPOSITION PROLONGÉE AUX VIBRATIONS........... 16
PRESSION MAXIMUM DE 620 KPA..................................................... 16
UTILISEZ DES ACCESSOIRES D’UNE VITESSE NOMINALE AU
MOINS ÉGALE À CELLE DE L’OUTIL.................................................. 16
CARACTÉRISTIQUES ........................................................................................... 17
INSTALLATION...................................................................................................... 17
CONFIGURATION RECOMMANDÉE DE LA CONDUITE
D’ALIMENTATION EN AIR .................................................................... 17
FONCTIONNEMENT.............................................................................................. 18
ENTRETIEN ........................................................................................................... 18
DÉPANNAGE ......................................................................................................... 19
SPÉCIFICATIONS.................................................................................................. 19
CONDITIONS DE LA GARANTIE.......................................................................... 20-21
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1/4-Inch Right Angle Grinder Operator's Manual 23
Tabla de Materias
INTRODUCCION .................................................................................................... 22
TABLA DE MATERIAS .......................................................................................... 23
SEGURIDAD .......................................................................................................... 24-26
INFORMATION DE SÉCURITÉ RECONOCER.................................... 24
PALABRAS DE ALERTA QUE ENTIENDO .......................................... 24
LAS INSTRUCCIONES DE OPERACIÓN ............................................ 24
SIEMPRE USE PROTECCIÓN PARA LOS OJOS APROBADA ......... 25
SE RECOMIENDA LA PROTECCIÓN DE LOS OÍDOS ....................... 25
USE PROTECCIÓN RESPIRATORIA .................................................. 25
EVITE LA EXPOSICIÓN PROLONGADA A LA VIBRACIÓN............... 26
620 KPA PRESIÓN ATMOSFÉRICA, MÁXIMO ................................... 26
USE ACCESORIOS CON LA CAPACIDAD DE RPM DE LA
HERRAMIENTA O MAYORES .............................................................. 26
INSTALACIÓN ....................................................................................................... 27
PREPARACIÓN DE TUBERÍA DE AIRE RECOMENDADA................. 27
OPERACIÓN .......................................................................................................... 28
MANTENIMIENTO ................................................................................................. 28
LOCALIZACION DE FALLAS ................................................................................ 29
ESPECIFICACIONES ............................................................................................ 29
DECLARACION DE GARANTIA ............................................................................ 30-31
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32 1/4-Inch Right Angle Grinder Operator's Manual
#37-0658-090403
©
Copyright 2003, John Deere
Manufactured for Deere & Company
Moline, Illinois 61265
1/4-Inch Right Angle Grinder
/
