Wen JN8504 User manual
8.5-AMP
BISCUIT JOINER
Instruction Manual
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.
NEED HELP? CONTACT US!
Have product questions? Need technical support? Please feel free to contact us:
For replacement parts and the most up-to-date instruction manuals, visit WENPRODUCTS.COM
MODEL JN8504
CONTENTS
WELCOME 3
Introduction ..................................................................................................... 3
Specifications................................................................................................... 3
SAFETY 4
General Safety Rules........................................................................................ 4
Biscuit Joiner Safety Warnings ........................................................................ 6
Electrical Information....................................................................................... 8
BEFORE OPERATING 9
Unpacking & Packing List.................................................................................9
Know Your Biscuit Joiner............................................................................... 10
Assembly & Adjustments............................................................................... 11
OPERATION & MAINTENANCE 13
Operation ....................................................................................................... 13
Maintenance....................................................................................................15
Troubleshooting Guide................................................................................... 16
Exploded View & Parts List.............................................................................17
Warranty Statement ........................................................................................19
2
To purchase replacement blades and accessories for your tool, visit WENPRODUCTS.COM
#0 FSC-Certified Birch Wood Biscuits for Woodworking, 100 Pack (Model No. JN100B)
#10 FSC-Certified Birch Wood Biscuits for Woodworking, 100 Pack (Model No. JN111B)
#20 FSC-Certified Birch Wood Biscuits for Woodworking, 100 Pack (Model No. JN122B)
SPECIFICATIONS
INTRODUCTION
Thanks for purchasing the WEN Biscuit Joiner. 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.
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.
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 ac-
cident prevention measures.
3
Model Number JN8504
Motor 120V AC, 60 Hz, 8.5A
Blade Speed 13,000 RPM
Blade Diameter 4 in. (100mm)
Blade Arbor Size 7/8 in. (22mm)
GENERAL SAFETY RULES
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 atmo-
spheres, 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 mod-
ify 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 surfac-
es 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 elec-
tric shock.
4. Do not abuse the cord. Never use the cord for car-
rying, 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 ex-
tension 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 un-
avoidable, 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 com-
mon 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 jew-
elry. Keep your hair and clothing away from moving
parts. Loose clothes, jewelry or long hair can be caught
in moving parts.
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.
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.
4
GENERAL SAFETY RULES
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 us-
ers.
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 opera-
tion. 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 main-
tained 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 ac-
count the working conditions and the work to be per-
formed. Use of the power tool for operations different
from those intended could result in a hazardous situa-
tion.
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 main-
tained.
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 Califor-
nia 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 ex-
posure to these chemicals, work in a well-ventilated area
with approved safety equipment such as dust masks
specially designed to filter out microscopic particles.
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.
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.
5
BISCUIT JOINER SAFETY WARNINGS
BISCUIT JOINER SAFETY
1. TOOL PURPOSE
This biscuit joiner is designed to create appropriately
sized slots in wood to allow easy joining with biscuits.
Using the machine for any other purpose for which
it is not designed may result in serious injuries,
machine damage, and voiding of the warranty.
2. PERSONAL SAFETY.
• Always wear ANSI Z87.1-approved glasses with
side shields, hearing protection and a dust mask.
• DO NOT wear loose clothing or jewelry, as they
might get drawn in by the tool. Tie back long hair.
• DO NOT wear gloves while operating this machine.
3. ELECTRIC CORDS.
Keep cords away from heat, oil, sharp edges, and
moving parts of the tool. Have an electrician replace
or repair damaged or worn cords immediately.
4. TOOL INSPECTION.
Before operation, check the tool for any damaged
or missing parts. Do not use the tool if any part
is missing or damaged. Do not use the tool if the
power switch is faulty, the plug or cable is damaged,
or the tool produces sparks, smoke, or unpleasant
odors (you may smell brushes wearing down for a
few minutes as the tool breaks in during the first
use, that is normal). Make sure all adjustments are
correct and all connections are tight.
5. SECURING THE WORKPIECE.
Use clamps to secure the workpiece whenever
possible to prevent wobble, damage to the workpiece,
and personal injury. Never hold a piece being cut
in your hands or across your legs. It is important
to support the work properly to minimize body
exposure, blade binding, or loss of control.
6. STANDING POSITION.
Make sure to stand in a stable and sturdy stance with
a tight grip on the joiner. Kickback could cause the
joiner to jump when in use.
7. STARTING THE TOOL.
Always start the joiner before the blade is in contact
with the workpiece. Let the blade reach full speed
before using the tool. The reaction to the torque as
the motor accelerates to full speed may cause the
tool to kick back.
8. KEEP HANDS AWAY. Keep hands away from the
cutting area and the blade. Do not reach underneath
the workpiece. The blade guard cannot protect you
from the blade protruding from the underside of the
workpiece. Do not attempt to remove cut material
when the blade is moving.
9. DURING OPERATION.
Do not apply excessive pressure to the tool.
Overstressing the tool may cause kickback and
damage the tool and accessories. Use special care
when working corners, sharp edges etc.
10. TURNING OFF THE TOOL.
The blade coasts after the joiner is turned off. Wait
until the blade comes to a full stop before reaching
for loose materials or setting the tool down.
11. REPLACING THE JOINER BLADE.
Check the blade for chipped or broken teeth. Do not
use dull or damaged blades. Unshaped or improperly
set blades produce narrow kerf, causing excessive
friction, blade binding, and kickback. Always use
blades with correct size and arbor holes. Blades that
do not match the mounting hardware of the joiner
will run eccentrically, causing a loss of control.
13. MAKING ADJUSTMENTS.
Always turn off and unplug the joiner before making
adjustments or changing attachments. Accidental
start-ups may occur if the saw is plugged in during an
accessory change. Develop a periodic maintenance
schedule for your tool. Always make sure the power
switch is in the OFF position and the machine is
unplugged when doing any cleaning, assembly,
setup operations, or when not in use.
WARNING! Do not let comfort or familiarity with the product replace strict adherence to product safety rules.
Failure to follow the safety instructions may result in serious personal injury.
6
BISCUIT JOINER SAFETY WARNINGS
WARNING! Do not let comfort or familiarity with the product replace strict adherence to product safety rules.
Failure to follow the safety instructions may result in serious personal injury.
14. REPLACEMENTS.
Should any component of your joiner be missing/
damaged or fail in any way, shut off the switch
and remove the plug from power supply outlet.
Replace the missing, damaged, or failed parts using
only identical replacement parts before resuming
operation.
REDUCING KICKBACK
Kickback is a sudden reaction to a pinched, bound
or misaligned joiner blade, causing an uncontrolled
joiner to lift up and out of the work piece toward the
operator. When the blade is pinched or bound tightly
by the kerf closing down, the blade stalls and the
motor reaction drives the unit rapidly back toward the
operator. If the blade becomes twisted or misaligned
in the cut, the teeth at the back edge of the blade
can dig into the top surface of the wood causing the
blade to climb out of the kerf and jump back towards
the operator. Take the proper precautions below to
reduce the risk of kickback.
• Maintain a firm grip on the joiner and position
your body and arm in a way that allows you to resist
kickback forces. Kickback forces can be controlled
by the operator, if proper precautions are taken.
• When a blade is binding (or when interrupting a
cut for any reason), release the trigger and hold
the joiner motionless in the material until the blade
comes to a complete stop. Never attempt to remove
the joiner from the work or pull the joiner backward
while the blade is in motion or kickback may occur.
• Do not use dull or damaged blades. Unshaped or
improperly set blades produce narrow kerf, causing
excessive friction, blade binding, and kickback.
• Blade depth and angle adjusting locking levers must
be tight and secure before making a cut. If the blade
adjustment shifts while cutting, it will cause binding
and kickback.
7
These safety instructions can’t possibly warn of every scenario that may arise with this tool,
so always make sure to stay alert and use common sense during operation.
ELECTRICAL INFORMATION
AMPERAGE REQUIRED GAUGE FOR EXTENSION CORDS
25 ft. 50 ft. 100 ft. 150 ft.
8.5A 18 gauge 16 gauge 14 gauge 12 gauge
3. Check
with a licensed electrician or service personnel if you do not completely
understand the grounding instructions or whether the tool is properly grounded.
4. Use only three-wire extension cords
that have three-pronged plugs and outlets
that accept the tool’s plug. Repair or replace a damaged or worn cord immediately.
CAUTION!
In all cases, make certain the outlet in question is properly grounded. If
you are not sure, have a licensed electrician check the outlet.
GUIDELINES AND RECOMMENDATIONS FOR EXTENSION CORDS
When using an extension cord, be sure to use one heavy enough to carry the current your
GROUNDING INSTRUCTIONS
In the event of a malfunction or breakdown
, grounding provides the path of least resistance for an electric
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.
1. Do not modify the plug provided.
If it will not fit the outlet, have the proper outlet installed by a licensed
electrician.
2. Improper connection
of the equipment grounding conductor can result in electric shock. The conductor
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.
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.
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.
Fig. 1
8
Components
9
UNPACKING
With the help of a friend or trustworthy foe, such as one of your in-laws, carefully remove the biscuit joiner from the
packaging and place it on a sturdy, flat surface. Make sure to take out all contents and accessories. Do not discard
the packaging until everything is removed. Check the packing list below to make sure you have all of the parts and
accessories. If any part is missing or broken, please contact customer service at 1-800-232-1195 (M-F 8-5 CST),
UNPACKING & PACKING LIST
PACKING LIST
Accessories
Biscuit Joiner
Spanner Wrench (1)
Dust Bag (1)
#20 Biscuits (24)
#10 Biscuits (16)#0 Biscuits (10)
*Gravy Not Included
TOOL PURPOSE
This biscuit joiner is designed to create appropriately sized slots in wood to allow easy joining with
biscuits. Refer to the following diagrams to become familiarized with all the parts and controls of your
biscuit joiner. The components will be referred to later in the manual for assembly and operation in-
structions.
KNOW YOUR BISCUIT JOINER
10
Angle Ruler
Dust Chute
Base Plate
Depth Stop Bolt
Depth Adjustment Dial Height Adjustment
Locking Knob
Angle Fence
Angle Adjustment
Locking Knob
Carbon Brush Cover
Trigger
Spindle Lock Button
Handle
Height Fence
11
ASSEMBLY & ADJUSTMENTS
SETTING THE CUTTING DEPTH
The depth adjustment dial helps to control the depth of cut for different
size biscuits. The dial has depths that correlate to biscuit sizes #0, #10,
and #20 (see pages 13 and 14 for detailed biscuit information) along
with a setting “M” that correlates to the deepest cut the biscuit joiner
can cut.
It is recommended to calibrate the depth of cut initially and every few
months, depending on frequency of use. To calibrate the depth of cut,
carry out the following steps:
1. Rotate the depth adjustment dial (Fig. 2 - 1) to the desired setting
that correlates to the biscuit size that will be used.
2. Measure the depth of the cut by one of the following methods:
a) Press the fence assembly (Fig. 3 - 1) back as far as possible, being
very careful to avoid the blade. Measure the distance that the blade pro-
trudes from the fence. This distance should be slightly more than half
the width of the correlated biscuit.
b) Make a test cut in a piece of scrap wood. Try to fit the correlated
biscuit into the slot and determine if the slot is deep enough.
3. If the depth of cut is incorrect, loosen the depth stop nut on the depth
bolt (Fig. 4 - 1) and thread the bolt to the desired depth. Tightening the
depth bolt will make the cut shallower, whereas loosening the bolt will
make the cut deeper.
4. Recheck the depth of cut by repeating step 2. If the depth of cut is
accurate, tighten the depth stop nut against the stop to secure the posi-
tion of the depth bolt.
SETTING THE FENCE ANGLE
The angle fence can be adjusted to account for bevel angles on the
workpiece. To adjust the fence angle:
1. Loosen angle lock knob (Fig. 5 - 1) and rotate angle fence (Fig. 5 - 2)
to the desired angle.
2. Tighten the angle lock knob. Check that the angle fence is secure
before cutting into the workpiece
Fig. 2
1
1
Fig. 4
2 1
Fig. 5
Fig. 3
1
12
ASSEMBLY & ADJUSTMENTS
SETTING THE HEIGHT OF CUT
The height fence allows the biscuit slot to be cut at different heights.
The height of the cut is set by adjusting the angle fence and the height
fence.
1. Loosen the angle lock knob (Fig. 6 - 1) and rotate the angle fence
(Fig. 6 - 2) to 90° or the desired cutting angle.
2. Loosen the height locking knob (Fig. 7 - 1) to raise or lower the fence
assembly (Fig. 7 - 2) to the desired height.
3. Tighten the height lock knob. Check that the fence assembly is secure
before cutting into the workpiece.
CHANGING THE BLADE
1. Remove the four M4x6 screws (Fig. 8 - 1) and base plate (Fig. 8 - 2)
from the underside of the unit.
2. Lock the blade by pressing the spindle lock button (Fig. 9 - 1) on
the top of the unit and rotating the blade by hand until the spindle lock
button engages and the blade stops spinning. Use the spanner wrench
to loosen (counter-clockwise) and remove the outer flange (Fig. 9 - 2).
3. Replace the new blade on the spindle. Make sure to check that the
blade teeth are in the proper direction by checking the blade against the
arrows molded into the slide plate.
4. Replace the outer flange onto the spindle. Lock the blade by pressing
the spindle lock button and tighten the outer flange with the spanner
wrench.
5. Secure the base plate with the four screws. 12
Fig. 7
21
Fig. 6
Fig. 8 Fig. 9
2
1
1
2
13
OPERATION
MAKING A BISCUIT SLOT
1. Ensure the workpiece is secure and clamped down.
2. Adjust cutting depth, fence angle, and height of cut (see pages 11
and 12).
3. Plug the biscuit Joiner into a proper outlet.
4. Align the cutting guides on the fence and slide plate with the marks
on the workpiece (Fig. 10).
NOTE: It is recommended to mark the center of the desired biscuit slot
on a face that will be visible during the cutting operation. Align this
center mark with the center indent on the slide plate.
5. Turn on the biscuit joiner. Make sure the blade reaches full speed
before making any cuts
Fig. 10
Cutting
Guide
NOTE: This biscuit Joiner is equipped with a safety trigger. First press the trigger lock and then the trigger in order
to turn the tool ON. The trigger needs to stay depressed to stay ON. Simply release the trigger to turn the unit OFF.
6. Press biscuit joiner into the workpiece to make the biscuit slot cut.
7. Once the blade is completely plunged into the workpiece, ease pressure on the biscuit joiner to allow the blade to
retract out of the workpiece and back into the slide plate.
8. Once finished cutting, unplug the tool from the power source and store unit in blow molded case. Empty dust bag
frequently to maintain efficiency and quality.
OPERATION TIPS
It is recommended to test cutting of biscuit slots on scrap wood before making any final cuts. This will help properly
align the slot and the biscuit in the final workpiece.
The biscuit joiner is set up to cut the standard 3 different sizes of biscuits. It is recommended to use the largest
biscuit size that will fit the joint. See Figure 11 for the standard sizes of biscuits.
2.2 in. (56mm)
1 in.
(23mm)
#20
2.1 in. (53mm)
#10
0.75 in.
(19mm)
#0
0.60 in.
(15mm)
1.9 in. (47mm)
Fig. 11
OPERATION
14
OPERATION TIPS CONT.
There are many different types of joints that can be made using biscuits. See Figure 12 for a few common different
types of layouts.
Fig. 12
Edge to Edge Joint
T Joint
Corner Joint
Edge Miter Joint
Offset Joint
45° Frame Joint
When determining the location of the biscuit slots, it is generally rec-
ommended to place a biscuit in the middle of the joint and additional
biscuits 6 to 10 inches from the center biscuit on each side. The biscuit
closest to the edge should be placed no less than 2 to 3 inches from
the edge (Fig 13).
For thicker workpieces, you can stack biscuits to ensure secure joints.
It is recommended that the distance from the face of the workpiece is
no less 1/4 inch and the distance between biscuits is not less than 1/4
inch (Fig 14).
Fig. 13
2-3 in. 6-10 in.
Fig. 14
1/4 in. min.
1/4 in. min. 1/4 in. min.
15
MAINTENANCE
CLEANING
• Keep the biscuit joiner clean of any wood chips, dust, dirt or debris.
• Ventilation openings and switch levers must be kept clean and free of foreign matter.
• The tool may be cleaned most effectively with compressed dry air.
• Always wear safety goggles when cleaning tools with compressed air.
• Do not attempt to clean these components by inserting pointed objects through openings.
WARNING! To prevent serious injury from accidental operation, make sure that the biscuit joiner is turned
off and unplugged from power source before installation, cleaning, and maintenance operations.
WARNING! Preventive maintenance performed by unauthorized personnel may result in misplacing of inter-
nal wires and components, possibly causing a serious hazard.
WARNING! Certain cleaning agents and solvents damage plastic parts. This includes but is not limited to
gasoline, carbon tetrachloride, chlorinated cleaning solvents, ammonia and household detergents that contain
ammonia.
CARBON BRUSHES
To maintain maximum efficiency of the motor, we recommend chang-
ing the carbon brushes every 60 hours of operation. Replacement car-
bon brushes (Model JN8504-035) are available at wenproducts.com.
Only genuine WEN replacement brushes designed specifically for your
tool should be used. To inspect or replace the carbon brushes:
1. Unscrew the screw securing the brush cover (Fig. 15-1) and remove
the brush cover.
2. Use a small screwdriver (not included) or other small instrument
to release the coil spring from the carbon brush and remove the worn
carbon brush.
3. Replace the carbon brush, securing it with the coil spring. Reinstall
the brush cover.
Fig. 15
1
Carbon
Brush
PROBLEM CAUSE SOLUTION
Unit will not start.
1) Power cord is not connected to a
power supply.
1) Ensure the power cord is connected
to a power supply
2) Power outlet does not have power.
2) Ensure that there is power at the
outlet. If there is no power, check to
make sure the breaker is not tripped
and the outlet is rated for the proper
capacity of the tool.
3) Internal damage or excessive wear
(ex. carbon brushes are warn, the
switch has a faulty wire).
3) Contact customer service at 1-800-
232-1195 for assistance.
Unit's blade operates slowly.
1) Power is being reduced by improper
outlets or non-compliant extension
cords
1) Check that the power outlet is rated
for the proper capacity to match the
tool and that proper extension cords
are being use.
Unit's performance decreas-
es over time.
1) Blade has become dull or damaged. 1) Replace blade if needed.
2) Carbon brushes have worn down or
are damaged. 2) Replace carbon brushes if needed.
Excessive noise or vibration.
1) Carbon brushes have worn down or
are damaged. 1) Replace carbon brushes if needed.
2) Damage or ware to internal parts. 2) Contact customer service at 1-800-
232-1195 for assistance.
Unit is overheating.
1) Tool is being advanced too quickly
into the workpiece.
1) Slow down tool advancement into
material.
2) Blade is damaged or dull. 2) Ensure blade is kept sharp and
replace blade if need.
3) Dust has collected in the motor
housing vents.
3) Clean dust from vents. Use com-
pressed air to blow dust out while us-
ing properly rated safety glasses and
dust mask.
4) Motor is not getting enough power
due to use of improperly rated exten-
sion cord.
4) Use extension cords only as recom-
mended.
TROUBLESHOOTING GUIDE
WARNING! Stop using the tool immediately if any of the following problems occur. Repairs and replace-
ments should only be performed by an authorized technician. For any questions, please contact our customer
16
17
EXPLODED VIEW & PARTS LIST
EXPLODED VIEW & PARTS LIST
No. Part No. Description Qty.
1 JN8504-001 Bearing Ring 1
2 JN8504-002 Bearing 607Z 1
3 JN8504-003 Armature 1
4 JN8504-004 Circlip 2
5 JN8504-005 Screw M5x8 2
6 JN8504-006 Bearing 6000Z 2
7 JN8504-007 Spindle Lock Button 1
8 JN8504-008 Spring 1
9 JN8504-009 Gear box 1
10 JN8504-010 Screw ST4.2x22 4
11 JN8504-011 Circlip 1
12 JN8504-012 Column bearing 1
13 JN8504-013 Spring washer 1
14 JN8504-014 Gear 1
15 JN8504-015 Screw M4x8 3
16 JN8504-016 Front cap 1
17 JN8504-017 Small Spring Washer 6
18 JN8504-018 Screw M4x14 4
19 JN8504-019 Woodruff Key 1
20 JN8504-020 Spindle 1
21 JN8504-021 Left Handle Housing 1
22 JN8504-022 Right Handle Housing 1
23 JN8504-023 Cord clamp 1
24 JN8504-024 Screw ST4.2x13 4
26 JN8504-026 Switch 1
27 JN8504-027 Screw ST4.2x16 5
28 JN8504-028 Power Cord 1
29 JN8504-029 Cord Stress Relief 1
30 JN8504-030 Right Brush Cap 1
31 JN8504-031 Left Brush Cap 1
32 JN8504-032 Brush Coil Spring 1
33 JN8504-033 Label 2
34 JN8504-034 Screw ST3.5x10 4
35 JN8504-035 Carbon Brush 2
36 JN8504-036 Brush holder 2
37 JN8504-037 Roller 1
38 JN8504-038 Motor Housing 1
39 JN8504-039 Stator 1
40 JN8504-040 Fan guide 1
No. Part No. Description Qty.
41 JN8504-041 Screw ST4x58 2
42 JN8504-042 Screw M8x12 2
43 JN8504-043 Front handle 1
44 JN8504-044 Pinion 1
45 JN8504-045 Spring washer 1
46 JN8504-046 Nut M8 1
47 JN8504-047 Screw M4x45 1
48 JN8504-048 Depth Stop Nut M4 1
49 JN8504-049 Screw M4x8 2
50 JN8504-050 Depth Stop Block 1
51 JN8504-051 Inner Flange 1
52 JN8504-052 Blade 1
53 JN8504-053 Outer Flange 1
54 JN8504-054 Screw M4 1
55 JN8504-055 Spring 1
56 JN8504-056 Steel Ball 1
57 JN8504-057 Depth Adjustment Dial 1
58 JN8504-058 Screw M5x12 1
59 JN8504-059 Spring 2
60 JN8504-060 Slide plate 1
61 JN8504-061 Base plate 1
62 JN8504-062 Screw M4x6 6
63 JN8504-063 Screw M3x6 2
64 JN8504-064 Depth Scale 1
65 JN8504-065 Support Fence 1
66 JN8504-066 Height Adjustment Knob 1
67 JN8504-067 Height Fence 1
68 JN8504-068 Screw 1
69 JN8504-069 Angle pointer M4x14 1
70 JN8504-070 Angle Fence 1
71 JN8504-071 Dowel 2
72 JN8504-072 Angle Scale 1
73 JN8504-073 Fence Cap 2
74 JN8504-074 Screw M4x16 2
75 JN8504-075 Dust Port 1
76 JN8504-076 Dust Bag 1
77 JN8504-077 Dust Bag Tube 1
78 JN8504-078 Spanner Wrench 1
79 JN8504-079 Angle Adjustment Knob 1
18
19
WARRANTY STATEMENT
WEN Products is committed to building tools that are dependable for years. Our warranties are consistent with this
commitment and our dedication to qualit
y.
LIMITED WARRANTY OF WEN PRODUCTS FOR HOME USE
GRE
AT LAKES TECHNOLOGIES, LLC (“Seller”) warrants to the original purchaser only, that all WEN
consumer
power tools will be free from defects in material or workmanship during personal use for a period of two (2) years
used
for professional or commercial use. Purchaser has 30 days from the date of purchase to report missing or
damaged parts.
SELLER’S
SOLE OBLIGATION AND YOUR EXCLUSIVE REMEDY under this Limited Warranty and, to the extent per-
mitted
by law, any warranty or condition implied by law, shall be the replacement of parts, without charge, which a
re
defective
in material or workmanship and which have not been subjected to misuse, alteration, careless handling,
misrepai
r, abuse, neglect, normal wear and tear,
improper maintenance, or other conditions adversely affecting the
Product
or the component of the Product, whether by accident or intentionally, by persons other than Seller. To
make
a claim under this Limited Warranty, you must make sure to keep a copy of your proof of purchase that
clearly
-
dor
of Great Lakes Technologies, LLC. Purchasing through third party vendors, including but not limited to garage
sales,
pawn shops, resale shops, or any other secondhand merchant, voids the warranty included with this
product.
your
shipping address, phone number, serial number, required part numbers, and proof of purchase. Damaged
or
defective parts and products may need to be sent to WEN before the replacements can be shipped out.
-
turning
a product for warranty service, the shipping charges must be prepaid by the purchaser. The product
must
be
shipped in its original container (or an equivalent), properly packed to withstand the hazards of shipment. The
product
must be fully insured with a copy of the proof of purchase enclosed. There must also be a description of
the
will be returned and shipped back to the pur
chaser at no charge for addresses within the contiguous United States.
THIS
LIMITED WARRANTY DOES NOT APPLY TO ITEMS THAT WEAR OUT FROM REGULAR USAGE OVER TIME,
INCLUDING
BELTS, BRUSHES, BLADES, BATTERIES, ETC. ANY IMPLIED WARRANTIES SHALL BE LIMITED IN
DUR
ATION TO TWO (2) YEARS FROM DATE OF PURCHASE. SOME STATES IN THE U.S. AND SOME CANADIAN
PROVINCES
DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMI-
TAT
ION MAY NOT APPLY TO YOU.
IN
NO EVENT SHALL SELLER BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING
BUT
NOT LIMITED TO LIABILITY FOR LOSS OF PROFITS) ARISING FROM THE SALE OR USE OF THIS PRODUCT.
SOME ST
ATES IN THE U.S. AND SOME CANADIAN PROVINCES DO NOT ALLOW THE EXCLUSION OR LIMITAT
ION
OF
INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY
TO YOU.
THIS
LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS
WHICH
VARY FROM STATE TO STATE IN THE U.S., PROVINCE TO PROVINCE IN CANADA AND FROM COUNTRY
TO COUNT
RY.
THIS
LIMITED WARRANTY APPLIES ONLY TO ITEMS SOLD WITHIN THE UNITED STATES OF AMERICA, CANA-
DA
AND THE COMMONWEALTH OF PUERTO RICO. FOR WARRANTY COVERAGE WITHIN OTHER
COUNTRIES,
CONT
ACT THE WEN CUSTOMER SUPPORT LINE. FOR WARRANTY PARTS OR PRODUCTS REPAIRED UNDER
W
ARRANTY SHIPPING TO ADDRESSES OUTSIDE OF THE CONTIGUOUS UNITED STATES, ADDITIONAL
SHIPPING
CHARGES MAY APPLY.
THANKS FOR
REMEMBERING
V. 2020.03.24
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