AT-3308-J
AT-3308-J 8-INCH
VERTICAL POLISHER
CAUTION
RISK OF INJURY!
THIS MANUAL IS AN IMPORTANT PART OF THE VERTICAL POLISHER
AND SHOULD REMAIN WITH THIS UNIT WHEN YOU SELL OR RENT IT.
8-Inch Vertical Polisher Operator's Manual 1
READ MANUAL BEFORE OPERATING!
Introduction
Congratulations on the purchase of your new John Deere 8-Inch Vertical Polisher! You can
be assured your vertical polisher 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 8-Inch Vertical Polisher and sander features a built-in regulator for speed
control and through handle exhaust which vents air away from work surface. Includes
polishing bonnet, sander, backing plate and wrench.
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 vertical polisher.
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,
materials, 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:
2 8-Inch Vertical Polisher Operator's Manual
1. Model Number
2. Serial Number
3. Date and Place of Purchase
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 DESIGNED FOR THIS TOOL ............................ 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
8-Inch Vertical Polisher Operator's Manual 3
Safety
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.
READ OPERATING INSTRUCTIONS
Always become familiar with all the instructions and
warnings before operating any pneumatic tool.
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.
4 8-Inch Vertical Polisher Operator's Manual
WARNING
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 timeweighted 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 RESPIRAT ORY 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.
8-Inch Vertical Polisher Operator's Manual 5
WARNING
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.
CAUTION
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 DESIGNED FOR THIS TOOL
Do not attempt to use this tool as a grinder. Use only bonnets
and sandpaper rated at or over the RPM of this tool. Always
inspect the backing plates, accessories, etc. for any excessive
wear or cracks. Do not use any accessory that has been
damaged or bent.
6 8-Inch Vertical Polisher Operator's Manual
Installation
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.
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.
RECOMMENDED AIR LINE SET-UP
8-Inch Vertical Polisher Operator's Manual 7
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:
This model is designed for applications requiring slower speeds such as sanding and
polishing. The built-in regulator is located on the opposite side of the throttle lever.
Turn screw to change the speed for each job application.
Install the dead handle by threading it into the opening in the motor housing. The dead
handle assists in the operation and allows the exhaust to be directed away from the
work surface. The plate and any accessories should be held with the pad nut. Once
the pad is secured, the proper size and grit of paper may be put on pad. If the paper
must be trimmed, leave approximately 1/4" of paper overhang to cover the edges of
the pad.
In a polishing applications, the backing plate should be threaded onto the spindle, the
bonnet placed over the plate and then both held on with the pad nut. Using wrench
supplied to hold spindle, make sure that the pad nut is tight and recessed far enough
where it will not come in contact with the work surface while polishing.
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 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.
8 8-Inch Vertical Polisher Operator's Manual
Troubleshooting
Symptom
Loss of Power
Problem Solution
1. Low air pressure
2. Improper lubrication or
dirt build up
3. Worn motor parts, or
other problems
Specifications
Wheel size -------------------------------------7"
Bonnet size ------------------------------------8"
Spindle size------------------------------------ 5/8"-11
Free speed -------------------------------------2,500 RPM
Power output ---------------------------------- 1 HP
Weight------------------------------------------- 5 1/4 lbs.
Length -------------------------------------------8"
Average air consumption ------------------8 CFM
Recommended hose size------------------ 3/8"
Air inlet ------------------------------------------ 1/4"
Maximum operating pressure -------------90 PSI
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.
8-Inch Vertical Polisher Operator's Manual 9
Limited Warranty
John Deere Two-Year Limited Warranty. John Deere Vertical
Polisher, 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 workmanship 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.
10 8-Inch Vertical Polisher Operator's Manual
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