Wen 3939, 3939T Instruction Manual
MODEL 3939, 3939T
9-INCH BENCHTOP
BAND SAW
Instruction Manual
NEED HELP? CONTACT US!
Have product questions? Need technical support? Please feel free to contact us:
TECHSUPPORT@WENPRODUCTS.COM1-800-232-1195 (M-F 8AM-5PM CST)
IMPORTANT: Your new tool has been engineered and manufactured to WEN’s highest standards for dependability,
ease of operation, and operator safety. When properly cared for, this product will supply you years of rugged,
trouble-free performance. Pay close attention to the rules for safe operation, warnings, and cautions. If you use
your tool properly and for its intended purpose, you will enjoy years of safe, reliable service.
For replacement parts and the most up-to-date instruction manuals, visit WENPRODUCTS.COM
CONTENTS
WELCOME 3
Introduction ..................................................................................................... 3
Specifications ................................................................................................... 3
SAFETY 4
General Safety Rules ........................................................................................ 4
Specific Rules For Your Band Saw ................................................................... 6
Electrical Information ....................................................................................... 8
BEFORE OPERATING 9
Unpacking & Packing List .................................................................................9
Assembly & Adjustment ................................................................................. 10
OPERATION & MAINTENANCE 15
Operation ....................................................................................................... 15
Maintenance ................................................................................................... 17
Troubleshooting Guide ....................................................................................17
Exploded View & Parts List .............................................................................19
Warranty Statement ....................................................................................... 22
To purchase replacement blades for your band saw, visit WENPRODUCTS.COM
2
INTRODUCTION
Thanks for purchasing the WEN Benchtop Band Saw. We know you are excited to put your tool to work, but first,
please take a moment to read through the manual. Safe operation of this tool requires that you read and understand
this operator’s manual and all the labels affixed to the tool. This manual provides information regarding potential
safety concerns, as well as helpful assembly and operating instructions for your tool.
SAFETY ALERT SYMBOL: Indicates danger, warning, or caution. The safety symbols and the explanations
with them deserve your careful attention and understanding. Always follow the safety precautions to reduce the
risk of fire, electric shock or personal injury. However, please note that these instructions and warnings are not
substitutes for proper accident prevention measures.
NOTE: The following safety information is not meant to cover all possible conditions and situations that may occur.
WEN reserves the right to change this product and specifications at any time without prior notice.
At WEN, we are continuously improving our products. If you find that your tool does not exactly match this manual,
please visit wenproducts.com for the most up-to-date manual or contact our customer service at 1-800-232-1195.
Keep this manual available to all users during the entire life of the tool and review it frequently to maximize
safety for both yourself and others.
SPECIFICATIONS
Model Number 3939T
Motor 120V, 60Hz, 300W, 2.8A
Throat 9 Inches
Cutting Depth 3-5/8 Inches
Blade Speed 2460 FPM
Blade Length 62 Inches
Blade Width 1/8 to 3/8 Inches
Work Table Bevel 0-45 Degrees
Work Table Dimensions 12 x 12 Inches
Weight 44 Pounds
3
GENERAL SAFETY RULES
WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instructions may
result in electric shock, fire and/or serious injury.
Safety is a combination of common sense, staying alert and knowing how your item works. The term “power tool”
in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
SAVE THESE SAFETY INSTRUCTIONS.
WORK AREA SAFETY
1. Keep work area clean and well lit. Cluttered or dark
areas invite accidents.
2. Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids,
gases or dust. Power tools create sparks which may ig-
nite the dust or fumes.
3. Keep children and bystanders away while operating
a power tool. Distractions can cause you to lose control.
ELECTRICAL SAFETY
1. Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs
with earthed (grounded) power tools. Unmodified plugs
and matching outlets will reduce risk of electric shock.
2. Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges and refrigerators.
There is an increased risk of electric shock if your body
is earthed or grounded.
3. Do not expose power tools to rain or wet conditions.
Water entering a power tool will increase the risk of electric shock.
4. Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord
away from heat, oil, sharp edges or moving parts.
Damaged or entangled cords increase the risk of electric
shock.
5. When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord
suitable for outdoor use reduces the risk of electric
shock.
6. If operating a power tool in a damp location is unavoidable, use a ground fault circuit interrupter (GFCI)
protected supply. Use of a GFCI reduces the risk of elec-
tric shock.
PERSONAL SAFETY
1. Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a
power tool while you are tired or under the influence
of drugs, alcohol or medication. A moment of inatten-
tion while operating power tools may result in serious
personal injury.
2. Use personal protective equipment. Always wear
eye protection. Protective equipment such as a respira-
tory mask, non-skid safety shoes and hearing protection
used for appropriate conditions will reduce the risk of
personal injury.
3. Prevent unintentional starting. Ensure the switch is
in the off-position before connecting to power source
and/or battery pack, picking up or carrying the tool.
Carrying power tools with your finger on the switch or
energizing power tools that have the switch on invites
accidents.
4. Remove any adjusting key or wrench before turning
the power tool on. A wrench or a key left attached to a
rotating part of the power tool may result in personal
injury.
5. Do not overreach. Keep proper footing and balance
at all times. This enables better control of the power
tool in unexpected situations.
6. Dress properly. Do not wear loose clothing or jewelry. Keep your hair and clothing away from moving
parts. Loose clothes, jewelry or long hair can be caught
in moving parts.
4
GENERAL SAFETY RULES
WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instructions may
result in electric shock, fire and/or serious injury.
Safety is a combination of common sense, staying alert and knowing how your item works. The term “power tool”
in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
SAVE THESE SAFETY INSTRUCTIONS.
7. If devices are provided for the connection of dust
extraction and collection facilities, ensure these are
connected and properly used. Use of dust collection
can reduce dust-related hazards.
POWER TOOL USE AND CARE
1. Do not force the power tool. Use the correct power
tool for your application. The correct power tool will
do the job better and safer at the rate for which it was
designed.
2. Do not use the power tool if the switch does not turn
it on and off. Any power tool that cannot be controlled
with the switch is dangerous and must be repaired.
3. Disconnect the plug from the power source and/or
the battery pack from the power tool before making
any adjustments, changing accessories, or storing
power tools. Such preventive safety measures reduce
the risk of starting the power tool accidentally.
4. Store idle power tools out of the reach of children
and do not allow persons unfamiliar with the power
tool or these instructions to operate the power tool.
Power tools are dangerous in the hands of untrained users.
5. Maintain power tools. Check for misalignment or
binding of moving parts, breakage of parts and any
other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before
use. Many accidents are caused by poorly maintained
power tools.
6. Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less
likely to bind and are easier to control.
7. Use the power tool, accessories and tool bits, etc.
in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the power tool for operations different
from those intended could result in a hazardous situation.
8. Use clamps to secure your workpiece to a stable
surface. Holding a workpiece by hand or using your
body to support it may lead to loss of control.
9. KEEP GUARDS IN PLACE and in working order.
SERVICE
1. Have your power tool serviced by a qualified repair
person using only identical replacement parts. This
will ensure that the safety of the power tool is maintained.
CALIFORNIA PROPOSITION 65 WARNING
Some dust created by power sanding, sawing, grinding,
drilling, and other construction activities may contain
chemicals, including lead, known to the State of California to cause cancer, birth defects, or other reproductive
harm. Wash hands after handling. Some examples of
these chemicals are:
• Lead from lead-based 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
with approved safety equipment such as dust masks
specially designed to filter out microscopic particles.
5
SPECIFIC RULES FOR YOUR BANDSAW
WARNING! Do not operate the power tool until you have read and understood the following instructions and
the warning labels.
SAW BLADE SAFETY
1. Always wear protective gloves when handling saw
blades.
2. Only use blades with correct size and type for both
your band saw and your workpiece.
3. Never use damaged or deformed saw blades. Only use
sharp blades.
4. Install the saw blade in the correct orientation indi-
cated in the instructions.
5. Keep hands out of path of saw blade. Never use your
hands to remove sawdust or scrap wood. Use a brush at
all times.
6. Never reach around saw blade or reach in back of the
saw blade.
7. The use of accessories or attachments not recommended by the manufacturer may result in a risk of personal injury.
PERSONAL SAFETY
1. Operate in a well ventilated area. Keep the floor area
around the band saw level and free of slippery substances or other tripping hazards.
6. Always turn off and unplug the band saw before making any adjustments or repair tasks. Never adjust the
band saw or the workpiece while the saw is running.
7. Only use the band saw to cut wood.
PREPARING THE BAND SAW
When transporting the band saw, use the transportation handle and roll the assembled saw with the wheels.
Never carry the device by its guards or its accessories.
1. Examine the band saw for any damaged or missing
parts. Replace or repair damaged parts before operation.
Periodically check that all nuts, bolts and other fasteners
are properly tightened.
SECURE YOUR WORKPIECE
1. To avoid blade binding or loss of control, always secure the workpiece to a stable platform, ensuring that
body exposure is minimized. Use clamps to secure the
workpiece. Never perform any operation freehand.
2. Ensure that work is correctly supported. Supports
must be placed under the workpiece on both sides, close
to the line of cut and near the edge of the workpiece.
3. For accuracy of cut, and to avoid blade binding, always use a rip fence or straight edge guide.
2. Wear ANSI-approved safety goggles to protect your
eyes from saw dust. Use hearing protection to protect
yourself from hearing loss.
3. People with pacemakers should consult their
physician(s) before use. Electromagnetic fields in close
proximity to pacemakers could cause pacemaker interference or pacemaker failure.
4. Wear work gloves when handling saw blades. DO NOT
wear gloves, neckties, jewelry, or loose clothing while
operating the saw.
5. Saw dust is harmful to your health. Use NIOSH-approved dust masks or other respiratory protection during operation and cleaning.
6
4. Never hand-hold a workpiece that is too small to be
clamped, as it can be launched away and cause injury.
Use proper support and guides to secure the small workpiece.
5. Use extra caution with very large, very small, or awkwardly-shaped workpieces. Small pieces should be secured with clamps. Do not hold small pieces with your
hand because your fingers might go under the blade
guard.
6. Support round work properly (use a V block or press
it against the miter gauge) to prevent it from rolling and
the blade from biting.
SPECIFIC RULES FOR YOUR BANDSAW
WARNING! Do not operate the power tool until you have read and understood the following instructions and
the warning labels.
7. Plan intricate or small work carefully to avoid pinching
the blade. Avoid awkward operations and hand positions
to prevent accidental contact with the blade.
DURING CUTTING OPERATIONS
1. Always stand to one side when operating the saw.
Never have any part of the body in line with the path of
the saw. Never hold a workpiece in your hand or across
your legs while cutting.
2. Ensure hands are away from the cutting area and
blade. Keep one hand on the rear handle, and the other
on the front grip. If both hands are holding the tool they
cannot be cut by the blade.
3. Feed work into the blade against the direction of rotation of the blade only.
4. If you are interrupted when operating the saw, complete the process and switch the saw off before looking
up.
9. Never cut more than one piece at a time. Do not stack
workpieces together. Do not attempt to cut material
thicker than specified in this manual. Adjust the cutting
depth to the thickness of the workpiece.
10. If a cut does not extend to the edge of the workpiece,
or if the blade binds in the cut, allow the blade to come
to a complete stop and lift the saw out of the workpiece.
11. Turn off tool and wait for saw blade to stop before
moving workpiece or changing settings. Do not slow
or stop a blade with a piece of wood or by hand. Let
the blade come to rest naturally. Do not attempt to free
a jammed blade while the machine is still running and
connected to power.
12. Always raise the blade to be covered by the blade
guard after use.
5. Power tools must always be held by the insulated
gripping surfaces when performing an operation, ensuring protection if the cutting tool makes contact with its
own cord or hidden wiring. Contact with a ‘live’ wire will
make exposed metal parts of the power tool ‘live’ and
shock the operator if the insulated gripping surfaces are
not used.
6. Do not use the band saw unless all guards are in
place. Do not operate with any guard disabled, damaged,
or removed. Moving guards must move freely and close
instantly.
7. Blade guide, supports, bearings, and blade tension
must be properly adjusted to avoid accidental blade contact and to minimize blade breakage. To maximize blade
support, always adjust the upper blade guide and blade
guard so that it barely clears the workpiece.
8. Turn on the band saw and let it reach full speed, then
slowly slide the saw into the workpiece. This will help
produce safer and cleaner cuts.
7
ELECTRICAL INFORMATION
GROUNDING INSTRUCTIONS
In the event of a malfunction or breakdown
current and reduces the risk of electric shock. This tool is equipped with an electric cord that has 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.
, grounding provides the path of least resistance for an electric
1. Do not modify the plug provided.
electrician.
2. Improper connection
with the green insulation (with or without yellow stripes) is the equipment grounding conductor. If repair or
replacement of the electric cord or plug is necessary, DO NOT connect the equipment grounding conductor
to a live terminal.
3. Check
understand the grounding instructions or whether the tool is properly grounded.
4. Use only three-wire extension cords
that accept the tool’s plug (INSERT CR). Repair or replace a damaged or worn cord
immediately.
CAUTION!
you are not sure, have a licensed electrician check the outlet.
with a licensed electrician or service personnel if you do not completely
In all cases, make certain the outlet in question is properly grounded. If
of the equipment grounding conductor can result in electric shock. The conductor
If it will not fit the outlet, have the proper outlet installed by a licensed
Fig. 1
that have three-pronged plugs and outlets
GUIDELINES AND RECOMMENDATIONS FOR EXTENSION CORDS
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. The table below shows the
correct size to be used according to cord length and ampere rating. When in doubt, use a heavier cord. The smaller
the gauge number, the heavier the cord.
AMPERAGE
25 ft. 50 ft. 100 ft. 150 ft.
2.8A 18 gauge 16 gauge 16 gauge 14 gauge
1. Examine extension cord before use. Make sure your extension cord is properly wired and in good condition.
Always replace a damaged extension cord or have it repaired by a qualified person before using it.
2. Do not abuse extension cord. Do not pull on cord to disconnect from receptacle; always disconnect by pulling on
plug. Disconnect the extension cord from the receptacle before disconnecting the product from the extension cord.
Protect your extension cords from sharp objects, excessive heat and damp/wet areas.
3. Use a separate electrical circuit for your tool. This circuit must not be less than a 12-gauge wire and should be
protected with a 15A time-delayed fuse. Before connecting the motor to the power line, make sure the switch is in
the OFF position and the electric current is rated the same as the current stamped on the motor nameplate. Running
at a lower voltage will damage the motor.
8
REQUIRED GAUGE FOR EXTENSION CORDS
Loading...