ET-3303-J 3 1/4-INCH
BELT SANDER
CAUTION
RISK OF INJURY!
READ MANUAL BEFORE OPERATING!
THIS MANUAL IS AN IMPORTANT PART OF THE BELT SANDER
AND SHOULD REMAIN WITH THIS UNIT WHEN YOU SELL OR RENT IT.
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Table of Content
SAFETY .................................................................................................................. 4-9
GENERAL SAFETY RULES .................................................................. 4-9
FUNCTIONAL DESCRIPTION............................................................................... 10
MODEL ................................................................................................... 10
NAME OF PARTS .................................................................................. 10
SPECIFICATIONS ................................................................................. 10
OPERATION........................................................................................................... 11-14
APPLICATIONS ..................................................................................... 11
PRE-OPERATION ................................................................................. 11
OPERATION .......................................................................................... 12-14
MAINTENANCE AND INSPECTION ..................................................................... 14-15
MAINTENANCE AND INSPECTION ..................................................... 14
SERVICE AND REPAIRS ...................................................................... 15
REPLACEMENT PARTS ....................................................................... 15
STANDARD ACCESSORIES ................................................................ 15
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Safety
RECOGNIZE SAFETY INFORMATION
This is the safety alert symbol. When you see this symbol on
your tool or in this manual, be alert to the potential for
personal injury.
Follow recommended precautions and safe operating
practices.
UNDERSTAND SIGNAL WORDS
DANGER
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.
WARNING
CAUTION
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.
GENERAL SAFETY RULES
WARNING: Read and understand all
instructions.
Failure to follow all
instructions listed below, may
result in electric shock, fire and/
or serious personal injury.
SAVE THESE INSTRUCTIONS
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WARNING
KEEP WORK AREA CLEAN AND WELL LIT.
Cluttered areas and benches invite injuries.
CONSIDER WORK AREA ENVIRONMENT.
Don't expose power tools to rain. Don't use power
tools in damp or wet locations. Keep work area well
lit. Don't use tool in presence of flammable liquids
or gases. Power tools produce sparks during
operation. They also spark when switching ON/
OFF. Never use power tools in dangerous sites
containing lacquer, paint, benzine, thinner, gasoline,
gases, adhesive agents, and other materials which
are combustible or explosive.
GUARD AGAINST ELECTRIC SHOCK
Prevent body contact with grounded surfaces. For
example, pipes, radiators, ranges, refrigerator
enclosures.
KEEP CHILDREN AWAY
Do not let visitors contact tool or extension cord. All
visitors should be kept away from work area.
STORE IDLE TOOLS
When not in use, tools should be stored in dry, and
high or locked location - out of reach of children.
DRESS PROPERLY
Do not wear loose clothing or jewelry. They can be
caught in moving parts. Rubber gloves and nonskid
footwear are recommended when working outdoors.
USE SAFETY GLASSES
Also use face or dust mask if cutting operation is
dusty. All persons in the area where power tools re
being operated should also wear safety eye
protectors and face or dust masks.
SECURE WORK
Use clamps or a vise to hold work. It's safer than
using your hand and it frees both hands to operate
tool.
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WARNING
DON'T OVERREACH
Keep proper footing and balance at all times.
MAINTAIN TOOLS WITH CARE
Keep tools sharp and clean for better and safer performance. Follow instructions for
lubricating and changing accessories. Inspect tool cords periodically and replace if
damaged, have repaired by authorized service facility. Inspect extension cords
periodically and replace if damaged. Keep handles dry, clean, and free from oil and
grease.
DISCONNECT TOOLS
When not in use, before servicing, and when changing accessories, such as blades,
bits, cutters.
AVOID UNINTENTIONAL STARTING
Don't carry plugged-in tool with finger on switch. Be sure switch is off when plugged
in.
SECURELY MOUNT ACCESSORIES AND BLADES TO THE TOOL MAIN BODY
Extra care must be taken when using tools on elevated location (such as a roof
ladder, scaffold, or the like) to prevent injury to someone on a lower level in the event
the tool and/or accessory should drop.
NEVER TOUCH THE MOVING PARTS
Never touch the moving parts such as blades, bits, cutters and others.
CAUTION
DON'T FORCE TOOL
It will do the job better and safer at the rate from which it was intended.
USE RIGHT TOOL
Don't force small tool or attachment to do the job of a heavy-duty tool. Don't use tool for
purpose not intended - for example - don't use circular saw for cutting tree limbs or logs.
DON'T ABUSE CORD
Never carry tool by cord or yank it to disconnect from receptacles. Keep cord from heat,
oil and sharp edges.
REMOVE ADJUSTING KEYS AND WRENCHES
Form habit of checking to see that keys and adjusting wrenches are removed from tool
before turning it on.
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CAUTION
OUTDOOR USE EXTENSION CORDS
When tool is used outdoors, use only extension cords intended for use outdoors and
so marked.
STAY ALERT
Watch what you are doing. Use common sense. Do not operate tool when you are
tired.
CHECK DAMAGED PARTS
Before further use of the tool, a guard or other part that is damaged should be
carefully checked to determine 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 by a John Deere
Dealer unless otherwise indicated elsewhere in this instruction manual. Have
defective switched replaced by a John Deere Dealer. Do not use tool if switch does
not turn it on and off.
AVOID USING A POWER TOOL FOR APPLICATIONS OTHER THAN THOSE
SPECIFIED
Never use a power tool for applications other than those specified in the instruction
manual.
ENSURE SAFE OPERATION THROUGH CORRECT HANDLING
Secure safe operation through correct handling by observing the instructions de-
scribed herein. Do not employ accessories other than those specified herein;
otherwise, a hazardous condition may be created. Never allow a power tool to be
used by persons not familiar with correct handling (such as children) or by those who
cannot handle the tool correctly.
CONFIRM THAT NO ITEMS SUCH AS AN ELECTRIC CABLE OR CONDUIT ARE
BURIED INSIDE
In places where live wiring may be hidden behind a wall, floor, ceiling, etc. do not hold
or contact any metal parts of the tool. In such cases, metal parts could become
electrically live and present a serious shock hazard.
KEEP THE RIGHT PARTS IN THE RIGHT POSITION
Do not remove covers and screws which have been factory-mounted. They perform
important respective roles. Keep them in the right positions.
SHOULD THE PLASTIC HOUSING OR HANDLE OF A POWER TOOL BE
CRACKED OR DEFORMED, DO NOT USE IT
Since cracked or deformed parts may lead to an operator receiving an electric shock,
do not use such a power tool. Immediately have it repaired.
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CAUTION
ALWAYS KEEP THE MOTOR AIR VENT FULLY OPENED
A constantly open motor air vent is necessary to allow air to come in and out for cooling
the motor. Do not allow it to become clogged up, even if dust is blown through it.
OPERATE POWER TOOLS AT THE RATED VOLTAGE
Operate power tools at voltages specified on the nameplates.
STOP OPERATION IMMEDIATELY IF ANY ABNORMALITY IS DETECTED
Should a power tool be detected as out of order or should other abnormalities be
observed during operation, stop using the tool immediately.
NEVER LEAVE TOOL RUNNING UNATTENDED. TURN POWER OFF.
Don't leave tool until it comes to a complete stop.
CAREFULLY HANDLE POWER TOOLS
Should a power tool be dropped or struck against hard materials inadvertently, it may be
deformed, cracked, or damaged.
DO NOT WIPE PLASTIC PARTS WITH SOLVENT
Solvents such as gasoline, thinner, benzine, carbon tetrachloride, and alcohol may
damage and crack plastic parts. Do not wipe them with such solvents. Wipe plastic
parts with a soft cloth lightly dampened with soapy water.
WHEN REPLACING A COMPONENT PART, ADOPT THE SAME TYPE
When replacing a component part with a new one, adopt the same type of new part.
Also, never attempt to repair a power tool yourself.
POLARIZED PLUGS
To reduce the risk of electric shock, this equipment has a polarized plug (one blade is
wider than the other).
This plug will fit in a polarized outlet only one way.
If the plug does not fit fully in the outlet, reverse the plug.
If it still does not fit, contact a qualified electrician to install the proper outlet.
Do not change the plug any way.
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CAUTION
EXTENSION CORD
Make sure your extension cord is in good condition. When using an extension cord, be
sure to use one heavy enough to carry the current your product will draw. An undersized
cord will cause a drop in line voltage resulting in loss of power and overheating. Table
shows the correct size to use depending on cord length and nameplate ampere rating. If
in doubt, use the next heavier gage. The smaller the gage number, the heavier the cord.
Table 1
MINIMUM GAGE FOR CORD SETS
Total Length of Code in Feet (Meter)
0-25
26-50
51-100
101-150
(0-7.6)
(7.9-15.2)(15.5-30.05)
(30.8-45.7)
Ampere Rating
AWG Size of Cord
More
Than
0
6
10
Not More
Than
6
10
12
18
18
16
14
16
16
16
12
16
14
14
14
12
12
12
16
Not recommended
WARNING:
AVOID ELECTRICAL SHOCK HAZARD. NEVER USE THIS TOOL
WITH A DAMAGED OR FRAYED ELECTRICAL CORD OR
EXTENSION CORD. INSPECT ALL ELECTRICAL CORDS
REGULARLY. NEVER USE IN OR NEAR WATER OR IN ANY
ENVIRONMENT WHERE ELECTRIC SHOCK IS POSSIBLE.
DOUBLE INSULATION SYSTEM ENHANCES SAFE OPERATION
DOUBLE INSULATION
To enhance safe operation of this electric power tool, JOHN DEERE has adopted a
double insulation system. The term "double insulation" used here denotes an insulation
systems with two insulations physically separated and arranged between the electrically
conductive material connected to the power supply and outer frame subject to contact by
the operator.
Thus, the power tool is termed double insulated and both the mark and "
insulation", or either one is indicated on the name plate.
" double
While no external grounding is required with this system, normal safety precautions as
outlined in this manual must still be followed.
To maintain the effectiveness of the double insulation system, follow the precautions
described below:
1. Always contact your John Deere Dealer when assembling, disassembling or
replacing parts other than accessories or carbon brushes. Improper assembly
and/or replacement with wrong parts may result in eliminating the double
insulation-feature.
2. Clean the exterior of the tool with a soft cloth moistened with soapy water, and
dry thoroughly. Choleric solvent, gasoline, and thinner will cause plastic compo
nents to dissolve.
SAVE THESE INSTRUCTIONS AND MAKE THEM AVAILABLE TO
OTHER USERS AND OWNERS OF THIS TOOL!
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Functional Description
MODEL:
ET-3303-J 3 1/4-INCH BELT SANDER
NOTE: The information contained in this Instruction Manual is designed to assist you in
the safe operation and maintenance of the power tool.
NEVER operate, or attempt any maintenance on the tool unless you have first read and
understood all safety instructions contained in this manual.
Some illustrations in this Instruction Manual may show details or attachments
that differ from those on your own power tool
NAME OF PARTS:
(Fig. 1b)
(Fig. 1a)
SPECIFICATIONS:
3 1/4-INCH BELT SANDER ET-3303-J:
Motor
Single-Phase, Series: Wound Commutator Motor
Single-Phase 115V AC/DC 60Hz
3”x21” (76mmx533mm)
950W
Power Source
Sanding Belt Size
Input
No-Load
High
Low
1475ft/min (450m/min)
1180ft/min (360m/min)
10.8 lbs. (4.9kg)
Belt Speed
Weight
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Operation
APPLICATIONS:
- Sanding finish and flooring finish of woodwork products.
- Base polishing of Lumber-coated planes.
- Sanding finishes of metal surfaces.
- Base polishing of metal-coated planes, rust removal, or paint removal to refinishing.
- Surface finish of slate, concrete, and so on.
PRE-OPERATION:
Before using the Electric Power Tool, complete the following preparations.
CAUTION:
CONFIRM THE FOLLOWING POINTS PRIOR TO CONNECTING
THE PLUG TO THE POWER SOURCE.
1. Confirm the applied power source:
Be sure to operate the Electric Power Tool in the voltage specified on the name
plate.
2. Confirm that the power switch is turned "OFF":
If the plug is connected to the power receptacle while the power switch is turned
"ON", the machine starts operating unexpectedly, inviting serious accidents. Prior
to using the Electric Power Tool, be sure to confirm that the power switch is turned
"OFF".
3. Extension cord:
When the work area is far away from the power source, use an extension cord of
sufficient thickness and rated capacity. The extension cord should be kept as
short as possible.
CAUTION:
DAMAGED CORD MUST BE REPLACED OR REPAIRED.
4. Confirming condition of the environment:
Confirm that the work site is placed under appropriate conditions conforming to
prescribed precautions.
5. Confirm the power receptacle:
If the power receptacle only loosely accepts the plug, the receptacle must be
repaired. Contact the nearest electric store for repair service. If such a faulty
receptacle is used, it may cause overheating, resulting in a serious hazard.
6. Attach sanding belt:
For details, refer to the item “HOW TO HANDLE SANDING BELT”
PRECAUTIONS ON USING BELT SANDER
1. Align the inside arrow mark of the sanding belt with the revolving direction of the
drive pulley.
2. Sanding by impact and cutting by side-of-belt contact should be avoided.
3. Be careful of sanding sparks.
4. After operation, sweep the sanding dust away from the dust bag to avoid serious
accidents.
5. Don’t use water, or oil as lubricant.
6. Ascertain that the sanding workpiece contains neither nails nor other harmful
foreign matter.
7. Sanding glass fiber not recommended.
8. After operation, blow away the dust on the belt and the pulleys.
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Operation
OPERATION:
HOW TO USE THE BELT SANDER:
1. How to adjust sanding position:
Push switch and turn sanding belt to check position.
Adjust sanding belt so that both edges protrude 1/6” -
1/8” (1.6mm-3mm) past edges of pulleys.
If sanding belt is operated too far on the inside, it
may cause abrasion and damage machine. Adjust
sanding belt position by turning adjust screw (Fig. 2).
- Turn adjust screw clockwise to move belt in.
- Turn adjust screw counterclockwise to move
belt out.
CAUTION:
IF SANDING BELT MOVES DURING
OPERATION, ADJUSTMENT CAN
BE MADE WHILE IN OPERATION.
(Fig. 2)
2. To turn on switch:
Turn on switch while holding machine away from surface to be worked on. If
machine is placed on surface when switch is pushed, surface may be badly
scratched. The same applies when stopping the machine.
3. How to hold the machine:
Grasp handle and handle knob and hold machine against surface to be worked on
so that it contacts surface lightly.
Weight of machine itself is sufficient for sanding and polishing at highest efficiency.
Do not apply any additional pressure, for this would place unnecessary
load on motor, shortening life of sanding belt and lower work efficiency.
4. How to move machine:
Move machine forward first and then backward, repeating this motion.
5. How to select the proper sanding belt:
Choose sanding belt of proper grain size and grain type for your specific purpose,
by referring to the tables below (Table 1 and Table 2):
Derived finish
Coarse finish
Medium finish
Semi fine finish
Fine finish
Proper grain size
30-40
40-100
80-240
180-400
Table 1
Surface to be worked on
Steel, wood
Grain type
AA
WA
CC
Wood, bamboo
Nonferrous metals, slate, plastics, concrete
Table 2
CAUTIONS:
- FOR GRAIN SIZE, REFER TO TABLE ABOVE.
- SANDING BELT GRAIN SHOULD BE COARSER THAN SANDPAPER USED
FOR MANUAL WORK.
- USE SANDING BELT OF SAME SIZE GRAIN UNTIL UNIFORM SURFACE IS
OBTAINED.
CHANGING GRAIN SIZES MAY RESULT IN POOR FINISH.
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Operation
OPERATION (CONTINUED):
6. How to change belt speed:
Either high speed or low speed operation can be
selected according to the materials or the operating
conditions. Selecting sanding belt operating speed
can be achieved by shifting the tumbler switch in a
specified direction.
Symbol
H
L
Speed
High-speed
Low-speed
7. How to operate switch:
The power switch is turned ON when the trigger is
pulled, and if the stopper is once depressed, the
power switch becomes locked, allowing continuous
operation. The stopper can be released by pulling
the trigger.
8. How to work on corners:
Corners can be sanded and polished by using
machine as in Fig. 3.
(Fig. 3)
HOW TO HANDLE SANDING BELT:
CAUTION:
BE SURE TO SWITCH POWER OFF
AND DISCONNECT THE ATTACH-
MENT PLUG FROM THE POWER
RECEPTACLE TO AVOID SERIOUS
TROUBLE.
1. How to attach sanding belt (Fig. 4):
a. Pull lever with finger, idle pulley will then move
backward.
b. Place on drive pulley and idle pulley passing it
over the outside of shoe plate and making sure
that the arrow on inside of belt coincides with
rotational direction of drive pulley.
(Fig. 4)
CAUTION:
SANDING BELT INSTALLED IN THE
WRONG DIRECTION WILL LOWER
WORK EFFICIENCY AND SHORTEN
LIFE OF SANDING BELT.
c. Push lever with finger, idle pulley will then mov
forward and give proper tension to sanding belt
Then, adjust sanding belt position (refer to
page 12).
2. How to remove the sanding belt (Fig. 5):
Pull lever with finger, sanding belt will then sag and
can be taken off pulleys easily.
(Fig. 5)
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Operation
OPERATION (CONTINUED):
DUST REMOVAL:
When an excessive amount of dust is deposited in the
dust bag, dust-collecting efficiency will sharply drop.
Remove dust from the bag when it is deposited up to
about 2/3 the bag capacity, where by dust collecting
efficiency (as well as working efficiency) will be ensured.
Remove dust from the bag as follows:
a. Loosen the support bar and remove the dust
bag.
b. The bag inlet can be opened by unzipping the
slide fastener.
Maintenance and Inspection
MAINTENANCE AND INSPECTION:
CAUTION: BE SURE TO SWITCH POWER OFF
AND DISCONNECT THE PLUG
DURING MAINTENANCE AND
INSPECTION.
1. Inspecting the Sanding Belts:
If the sanding belt becomes loaded with debris or
dull, the efficiency will drop significantly. It may be
necessary to clean or replace the sanding belt
frequently, depending on the type of use.
2. Inspecting the mounting screws:
Regularly inspect all mounting screws and ensure
that they are properly tightened. Should any of the
screws be loose, retighten them immediately. Failure
to do so could result in serious hazard.
(Fig. 6)
3. Inspecting the carbon brushes (Fig. 6):
The motor employes carbon brushes which are consumable parts. Since an
excessively worn carbon brush could result in motor trouble, replace the carbon brush
with a new one which has the same carbon brush No. shown in figure when it
becomes worn to or near the “wear limit”. In addition, always keep carbon brushes
clean and ensure that they slide freely within the brush holders.
4. Replacing a carbon brush:
Disassemble the brush cap with a minus-head screwdriver. The carbon brush can
then be easily removed.
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Maintenance and Inspection
SERVICE AND REPAIRS
All quality tools will eventually require servicing or replacement of parts due to wear from
normal use. These operations should ONLY be performed by a John Deere Dealer.
REPLACEMENT PARTS
When servicing use only identical replacement parts.
NOTE: Due to JOHN DEERE’s continuing program of research and development, the
specifications herein are subject to change without prior notice.
APPLICATIONS:
- Sanding finish and flooring finish of woodwork products.
- Base polishing of Lumber-coated planes.
- Sanding finishes of metal surfaces.
- Base polishing of metal-coated planes, rust removal, or paint removal to refinishing.
- Surface finish of slate, concrete, and so on.
STANDARDACCESSORIES:
CAUTION: RECOMMENDED ACCESSORIES FOR THE ELECTRIC POWER
TOOL ARE MENTIONED IN THIS MANUAL. THE USE OF ANY OTHER
ATTACHMENT OR ACCESSORY IS HAZARDOUS.
1. Endless Sanding Belt (Grain size: #80)
2. Dust Bag
1
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Manufactured for Deere & Company,
#37-0691-090403
©Copyright 2003. John Deere
Moline, Illinois 61265
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110 Code No. C99110661 N
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