Chicago Electric Biscuit Joiner 68987 User Manual

Owner’s Manual & Safety Instructions  
Save This Manual Keep this manual for the safety warnings and precautions, assembly, operating,  
inspection, maintenance and cleaning procedures. Write the product’s serial number in the back of the manual  
near the assembly diagram (or month and year of purchase if product has no number). Keep this manual and  
the receipt in a safe and dry place for future reference.  
ITEM 68987  
Email our technical support at: [email protected]  
When unpacking, make sure that the product is intact  
and undamaged. If any parts are missing or broken,  
please call 1-800-444-3353 as soon as possible.  
©
®
Copyright 2011 by Harbor Freight Tools . All rights reserved.  
No portion of this manual or any artwork contained herein may be reproduced in  
any shape or form without the express written consent of Harbor Freight Tools.  
Diagrams within this manual may not be drawn proportionally. Due to continuing  
improvements, actual product may differ slightly from the product described herein.  
Tools required for assembly and service may not be included.  
Read this material before using this product.  
Failure to do so can result in serious injury.  
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Electrical safety  
1. power tool plugs must match the  
outlet. never modify the plug in any way.  
Do not use any adapter plugs with grounded  
power tools. Unmodified plugs and matching  
outlets will reduce 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.  
2. avoid body contact with grounded surfaces  
such as pipes, radiators, ranges and  
5. When operating a power tool outdoors, use  
an extension cord suitable for outdoor use.  
Use of a cord suitable for outdoor use  
refrigerators. There is an increased risk of  
electric shock if your body is grounded.  
reduces the risk of electric shock.  
3. Do not expose power tools to rain or wet  
conditions. Water entering a power tool  
will increase 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 electric 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 inattention while operating  
power tools may result in serious 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, clothing and gloves  
away from moving parts. Loose clothes, jewelry  
or long hair can be caught in moving parts.  
2. use safety equipment. always wear eye  
protection. Safety equipment such as  
dust mask, non-skid safety shoes, hard hat,  
or hearing protection used for appropriate  
conditions will reduce personal injuries.  
7. if devices are provided for the connection of  
dust extraction and collection facilities, ensure  
these are connected and properly used. Use of  
these devices can reduce dust-related hazards.  
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.  
8. Only use safety equipment that has been  
approved by an appropriate standards agency.  
Unapproved safety equipment may not provide  
adequate protection. Eye protection must  
be ANSI-approved and breathing  
protection must be NIOSH-approved for  
the specific hazards in the work area.  
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.  
Item 68987  
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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.  
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.  
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.  
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.  
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.  
7. use the power tool, accessories and blades  
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.  
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.  
Service  
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.  
Biscuit plate Joiner Safety Warnings  
7. When using a handheld power tool,  
maintain a firm grip on the tool with  
both hands to resist starting torque.  
1.  
DanGER: Keep hands away from cutting  
area and the blade. Keep your second hand on  
auxiliary handle, or motor housing. If both hands  
are holding the saw, they cannot be cut by the blade.  
8. Do not depress the spindle lock when  
starting or during operation.  
2. Disc cutters must be rated for at least the speed  
recommended on the tool. Disc cutters running  
over rated speed can fly apart and cause injury.  
9. Do not leave the tool unattended when it is  
plugged into an electrical outlet. Turn off the tool,  
and unplug it from its electrical outlet before leaving.  
3. always use the guard. The guard protects the  
operator from broken disc cutter fragments and  
unintentional contact with the disc cutter.  
10. this product is not a toy.  
Keep it out of reach of children.  
4. maintain labels and nameplates on the tool.  
These carry important safety information.  
If unreadable or missing, contact  
11. never hold piece being cut in your hands  
or across your leg. Secure the workpiece  
to a stable platform. It is important to  
Harbor Freight Tools for a replacement.  
support the work properly to minimize body  
exposure, blade binding, or loss of control.  
5. avoid unintentional starting.  
Prepare to begin work before turning on the tool.  
12. always use blades with correct size and  
shape (diamond versus round) of arbor holes.  
Blades that do not match the mounting hardware of  
the saw will run eccentrically, causing loss of control.  
6. Do not lay the tool down until it has come to  
a complete stop. Moving parts can grab the  
surface and pull the tool out of your control.  
Page 4  
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Biscuit plate Joiner Biscuit plate Joiner Safety Warnings (cont.)  
13. never use damaged or incorrect blade  
washers or bolt. The blade washers and  
bolt were specially designed for your saw, for  
optimum performance and safety of operation.  
20. WaRninG: Some dust created by power sanding,  
sawing, grinding, drilling, and other construction  
activities, contains chemicals known [to the State  
of california] to cause cancer, birth defects or  
other reproductive harm. Some examples of these  
chemicals are:  
14. Do not use dull or damaged blades.  
• Lead from lead-based paints  
• Crystalline silica from bricks and cement or other  
masonry products  
15. Blades must be rated to at least the  
maximum speed marked on the tool.  
• Arsenic and chromium from  
chemically treated lumber  
16. maintain labels and nameplates on the tool.  
These carry important safety information.  
If unreadable or missing, contact  
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.  
(California Health & Safety Code § 25249.5, et seq.)  
Harbor Freight Tools for a replacement.  
17. Do not leave the tool unattended when it is  
plugged into an electrical outlet. Turn off the tool,  
and unplug it from its electrical outlet before leaving.  
18. use clamps (not included) or other practical ways  
to secure and support the workpiece to a stable  
platform. Holding the work by hand or against your  
body is unstable and may lead to loss of control.  
21. WaRninG: handling the cord on this product  
will expose you to lead, a chemical known  
to the State of california to cause cancer,  
and birth defects or other reproductive  
harm. Wash hands after handling. (California  
Health & Safety Code § 25249.5, et seq.)  
19. people with pacemakers should consult their  
physician(s) before use. Electromagnetic fields  
in close proximity to heart pacemaker could cause  
pacemaker interference or pacemaker failure. In  
addition, people with pacemakers should:  
• Avoid operating alone.  
22. the warnings, precautions, and instructions  
discussed in this instruction manual cannot  
cover all possible conditions and situations  
that may occur. It must be understood by the  
operator that common sense and caution are  
factors which cannot be built into this product,  
but must be supplied by the operator.  
• Do not use with power switch locked on.  
• Properly maintain and inspect to avoid  
electrical shock.  
• Any power cord must be properly grounded.  
Ground Fault Circuit Interrupter (GFCI)  
should also be implemented – it prevents  
sustained electrical shock.  
Vibration Safety  
This tool vibrates during use. Repeated or long-term  
exposure to vibration may cause temporary or permanent  
physical injury, particularly to the hands, arms and  
shoulders. To reduce the risk of vibration-related injury:  
2. Do not smoke during use. Nicotine reduces  
the blood supply to the hands and fingers,  
increasing the risk of vibration-related injury.  
3. Wear suitable gloves to reduce the  
1. anyone using vibrating tools regularly or for  
an extended period should first be examined  
by a doctor and then have regular medical  
check-ups to ensure medical problems are  
not being caused or worsened from use.  
Pregnant women or people who have impaired  
blood circulation to the hand, past hand injuries,  
nervous system disorders, diabetes, or Raynaud’s  
Disease should not use this tool. If you feel any  
medical or physical symptoms related to vibration  
(such as tingling, numbness, and white or blue  
fingers), seek medical advice as soon as possible.  
vibration effects on the user.  
4. use tools with the lowest vibration  
when there is a choice.  
5. include vibration-free periods each day of work.  
6. Grip tool as lightly as possible (while still keeping  
safe control of it). Let the tool do the work.  
7. to reduce vibration, maintain the tool as  
explained in this manual. If any abnormal  
vibration occurs, stop use immediately.  
SaVE thESE inStRuctiOnS.  
Item 68987  
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Biscuit plate Joiner Safety Warnings (cont.)  
Grounding  
tO pREVEnt ElEctRic ShOcK anD DEath FROm  
incORREct GROunDinG WiRE cOnnEctiOn:  
check with a qualified electrician if you are in doubt as to whether the outlet is properly grounded.  
Do not modify the power cord plug provided with the tool. never remove the grounding prong from  
the plug. Do not use the tool if the power cord or plug is damaged. if damaged, have it repaired by a service  
facility before use. if the plug will not fit the outlet, have a proper outlet installed by a qualified electrician.  
Grounded tools: tools with three prong plugs  
2. The grounding prong in the plug is connected through  
the green wire inside the cord to the grounding  
system in the tool. The green wire in the cord must  
be the only wire connected to the tool’s grounding  
system and must never be attached to an electrically  
“live” terminal. (See 3-prong plug and Outlet.)  
3. The tool must be plugged into an appropriate outlet,  
properly installed and grounded in accordance with  
all codes and ordinances. The plug and outlet should  
look like those in the preceding illustration.  
3-prong plug and Outlet  
(See 3-prong plug and Outlet.)  
1. Tools marked with “Grounding Required” have a three  
wire cord and three prong grounding plug. The plug  
must be connected to a properly grounded outlet.  
If the tool should electrically malfunction or break  
down, grounding provides a low resistance path to  
carry electricity away from the user, reducing the risk  
of electric shock. (See 3-prong plug and Outlet.)  
Double insulated tools: tools with two prong plugs  
1. Tools marked “Double Insulated” do not  
require grounding. They have a special  
double insulation system which satisfies OSHA  
requirements and complies with the applicable  
standards of Underwriters Laboratories, Inc.,  
the Canadian Standard Association,  
and the National Electrical Code.  
2. Double insulated tools may be used in either of the  
120 volt outlets shown in the preceding illustration.  
(See Outlets for 2-prong plug.)  
Outlets for 2-prong plug  
Page 6  
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Biscuit plate Joiner Safety Warnings (cont.)  
Extension cords  
1. Grounded tools require a three wire extension cord.  
Double Insulated tools can use either  
7. Make sure the extension cord is properly wired  
and in good electrical condition. Always replace  
a damaged extension cord or have it repaired  
by a qualified electrician before using it.  
a two or three wire extension cord.  
2. As the distance from the supply outlet increases,  
you must use a heavier gauge extension cord.  
Using extension cords with inadequately sized wire  
causes a serious drop in voltage, resulting in loss of  
power and possible tool damage. (See table a.)  
8. Protect the extension cords from sharp objects,  
excessive heat, and damp or wet areas.  
REcOmmEnDED minimum WiRE GauGE  
FOR EXtEnSiOn cORDS* (120/240 VOlt)  
3. The smaller the gauge number of the wire, the  
greater the capacity of the cord. For example,  
a 14 gauge cord can carry a higher current  
than a 16 gauge cord. (See table a.)  
EXtEnSiOn cORD  
namEplatE  
lEnGth  
ampERES  
(at full load)  
25′ 50′ 75′ 100′ 150′  
4. When using more than one extension cord to make  
up the total length, make sure each cord contains at  
least the minimum wire size required. (See table a.)  
0 – 2.0  
2.1 – 3.4  
18  
18  
18  
18  
18  
14  
12  
18  
18  
18  
16  
14  
12  
10  
18  
18  
16  
14  
12  
10  
-
18  
16  
14  
12  
10  
-
16  
14  
12  
12  
-
3.5 – 5.0  
5. If you are using one extension cord for more  
than one tool, add the nameplate amperes  
and use the sum to determine the required  
minimum cord size. (See table a.)  
5.1 – 7.0  
7.1 – 12.0  
12.1 – 16.0  
16.1 – 20.0  
-
6. If you are using an extension cord outdoors, make  
sure it is marked with the suffix “W-A” (“W” in  
-
-
* Based on limiting the line volt-  
age drop to five volts at 150% of  
the rated amperes.  
Canada) to indicate it is acceptable for outdoor use.  
taBlE a  
Symbology  
WARNING marking concerning Risk  
of Eye Injury. Wear ANSI-approved  
safety goggles with side shields.  
Double Insulated  
Canadian Standards Association  
Underwriters Laboratories, Inc.  
Read the manual before  
set-up and/or use.  
WARNING marking concerning  
Risk of Hearing Loss.  
Wear hearing protection.  
Volts Alternating Current  
V~  
a
WARNING marking  
concerning Risk of Fire.  
Do not cover ventilation ducts.  
Keep flammable objects away.  
WARNING marking concerning  
Risk of Electric Shock.  
Amperes  
No Load Revolutions per Minute (RPM)  
n xxxx/min.  
0
Properly connect power cord  
to appropriate outlet.  
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Specifications  
Electrical Rating  
Motor No Load Speed  
Blade  
120V~ / 60Hz / 8.5A  
11,000 RPM  
4″ Diameter (Item 38840)  
7/8″ round  
Arbor  
note: For additional information regarding the parts listed in the following pages,  
refer to the Assembly Diagram near the end of this manual.  
Setup - Before use:  
Read the EntiRE impORtant SaFEty inFORmatiOn section at the beginning of this  
manual including all text under subheadings therein before set up or use of this product.  
tO pREVEnt SERiOuS inJuRy FROm acciDEntal OpERatiOn:  
turn the power Switch of the tool off and unplug the tool from its electrical outlet  
before assembling or making any adjustments to the tool.  
note: For additional information regarding the parts listed in the following pages,  
refer to the Assembly Diagram near the end of this manual.  
Functions  
Handle (23)  
Angle Locking Knob (84)  
Spindle Lock  
Angle Ruler (82)  
Angle Fence (81)  
Height Locking  
Knob (74)  
Cutting Guide  
Trigger (29)  
Trigger Lock  
Dust Chute (85)  
Depth Setting  
Dial (65)  
Depth Adjustment  
Bolt (55)  
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Operating instructions  
Read the EntiRE impORtant SaFEty inFORmatiOn section at the beginning of this  
manual including all text under subheadings therein before set up or use of this product.  
tool Set up  
tO pREVEnt SERiOuS inJuRy FROm acciDEntal OpERatiOn:  
turn the power Switch of the tool off and unplug the tool from its electrical outlet  
before adjusting the tool or installing accessories.  
make sure that all guards are in place and in proper working order and  
that all adjustment knobs are tight before operation.  
changing Blades  
1. Remove the four Screws and the Base  
Plate on the bottom of the unit.  
Base Plate  
2. While pressing in on the Spindle Lock Button on the  
top of the unit, use the Spanner Wrench to loosen  
(counterclockwise) and remove the Outer Flange  
and Blade. Do not remove the Inner Flange. Note the  
direction of the blade teeth when removing the Blade.  
Outer Flange  
Blade  
3. Place a new Blade and the Outer Flange onto  
the Spindle making sure the blade teeth are  
facing the correct direction and the flat side  
of the Outer Flange is facing outward.  
Spanner Wrench  
4. Press and hold the Spindle Lock Button  
and use the Spanner Wrench to tighten  
(clockwise) the Blade in place.  
Figure 1  
5. Replace the Base Plate and secure  
in place with the four Screws.  
attaching the Dust Bag  
2. If the bag is not already attached to the Dust  
Chute, squeeze together the wire brace  
ends on the Dust Bag and slide the Bag  
onto the Dust Chute. Release the wires.  
1. Align the Dust Chute with the Dust  
Port and slide it in place.  
3. To empty the bag, unzip the Zipper at the large end  
of the bag and empty contents. Zip bag closed.  
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Setting the cutting Depth  
The Depth Adjustment Dial sets the cutting depth  
of the blade. The Dial has settings for three sizes  
of biscuits (0, 10 or 20), and an “M” setting which  
is the maximum depth that the tool can cut.  
To check the setting for your biscuit  
size do either of the following:  
a. Make a sample cut in a scrap piece of  
wood and check that the biscuit will fit.  
To set the tool for a biscuit size:  
b. Being careful of the blade, depress  
the Fence as far as it will go, then  
measure how far the blade extends.  
Rotate the Depth Adjustment Dial to the desired  
setting for the biscuit size you will be using.  
Press and  
hold Fence  
Depth Adjustment Dial  
Figure 2  
Figure 3  
Measure Blade  
To adjust the cutting depth:  
Nut  
Depth  
Bolt  
Figure 4  
a. Loosen the Nut on the Depth Bolt, then thread  
the bolt in or out. Adjusting the Bolt closer to  
the Depth Adjustment Dial makes a shallower  
cut, while farther away will make a deeper cut.  
b. Depress the Fence and measure how far  
the Blade extends. Once the desired setting  
is reached, tighten the Nut in place.  
Page 10  
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Setting the Fence angle  
To adjust the fence angle to anywhere from 0º to 90º:  
Angle Locking Knob  
1. Loosen the Angle Locking Knob and  
rotate the Angle Fence until the desired  
angle is set on the Angle Ruler.  
2. Tighten the Angle Locking Knob.  
Angle Ruler  
Figure 5  
Setting the height  
The Height fence setting is to measure the cut from  
the top surface of the workpiece. It is set using  
both the Angle Fence and the Height Fence.  
Height Locking  
Knob  
1. Set the Angle Fence to 90º (see above,  
Setting the Fence Angle).  
2. Loosen the Height Locking Knob and  
raise or lower the Fence Assembly.  
3. Tighten the Height Locking Knob.  
Figure 6  
Work piece and Work area Set up  
1. Work piece selection:  
3. Route the power cord along a safe route  
to reach the work area without creating a  
tripping hazard or exposing the power cord  
to possible damage. The power cord must  
reach the work area with enough extra length  
to allow free movement while working.  
a. Work piece must be free of foreign  
objects and loose knots.  
b. Wet lumber, green (unseasoned) lumber,  
and pressure treated lumber all have an  
increased potential for kickback and should  
only be cut with a blade designed for cutting  
that lumber. Wear a NIOSH-approved  
respirator and have appropriate ventilation  
whenever cutting pressure treated lumber.  
4. Secure loose workpieces using a vise or clamps  
(not included) to prevent movement while working.  
5. Verify that there are no utility lines or  
hardware in or near the workpiece.  
This is especially critical for plunge cuts.  
2. Designate a work area that is clean and well-lit.  
The work area must not allow access by children  
or pets to prevent distraction and injury.  
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General Operating instructions  
locking trigger  
1. Secure the piece in place with the  
cutting mark facing up.  
The Biscuit Joiner has a safety lock mechanism to  
prevent accidentally turning the unit on. You can  
either turn the tool on and lock it on, or turn it on so  
that it only stays on while the Trigger is depressed.  
2. Adjust the tool to the desired cutting  
depth, angle and height.  
3. Plug the Biscuit Joiner into a  
grounded 120V~, 60Hz outlet.  
Trigger  
Trigger Lock  
4. Align the cutting guide on the Fence with  
the cutting mark on the workpiece.  
5. Turn on the tool and wait for the  
Blade to reach full speed.  
Figure 7  
6. Press into the workpiece to make the cut.  
To turn the tool on without locking it, press and  
hold the Trigger while pushing forward then  
releasing the Trigger Lock. Continue to depress  
the Trigger as long as you want it powered.  
Release the Trigger to turn the power off.  
7. When the cut is complete, slide the tool out of  
the finished slot and release the Trigger.  
8. To prevent accidents, turn off the tool and  
disconnect its power supply after use. Clean, then  
store the tool indoors out of children’s reach.  
To lock the tool on, press and hold the Trigger while  
pressing forward on the Trigger Lock. Release the  
Trigger, then release the Trigger Lock. The Biscuit  
Joiner will stay on without depressing the Trigger.  
Press and release the Trigger to turn the unit off.  
note: For efficient dust pickup, empty  
the Dust Bag frequently.  
to make a cut:  
Operating tips  
Before cutting your workpiece, make a test cut on scraps of wood, and fit them together to ensure the cut is  
the correct size, depth and location. Adjust the cutting depth as needed (See Setting the Cutting Depth).  
This Joiner is set up to cut slots for 3 different sizes of biscuits. Use the largest size biscuit that will fit your  
operation, usually a workpiece 1/2" thick or larger will use the largest size biscuit (size #20).  
Biscuit Sizes for this Joiner  
1"  
(23 mm)  
3/4"  
(19 mm)  
5/8"  
(15 mm)  
#20  
#10  
#0  
Figure 8  
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Operating tips (cont.)  
typical types of Joints  
Miter Joints  
T-Joints  
Joining  
Butt Joints  
Edge-to-Edge  
Cuts  
Figure 9  
Plan the biscuit slot at a point at least 2-1/2" from the outer edge of the board. Allow at least 1" between  
slots in multiple plate applications for best results. Mark all slots on both boards at the same time to assure  
proper alignment.  
Ends of  
Face of wood  
wood  
Figure 10  
Figure 11  
1. Begin with the Joiner base cutting into the end of the  
wood, rather than the face as illustrated below.  
3. Otherwise, mark the center line of each cut  
individually.  
4. Adjust the fences to the angle and depth  
needed to make the cut (See Tool Set Up  
section). Align center line on face plate with  
the pencil mark on wood then make the cut.  
Figure 11  
2. If possible, lay the workpieces as they will be  
joined together and mark a center line across  
the join to mark the center of cut to be made.  
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maintenance and Servicing  
procedures not specifically explained in this manual must  
be performed only by a qualified technician.  
tO pREVEnt SERiOuS inJuRy FROm acciDEntal OpERatiOn:  
turn the power Switch of the tool off and unplug the tool from its electrical outlet  
before performing any inspection, maintenance, or cleaning procedures.  
tO pREVEnt SERiOuS inJuRy FROm tOOl FailuRE:  
Do not use damaged equipment. if abnormal noise or vibration  
occurs, have the problem corrected before further use.  
cleaning, maintenance, and lubrication  
BEFORE Each uSE, inspect the general condition of the tool. Check for loose  
screws, misalignment or binding of moving parts, cracked or broken parts, damaged  
electrical wiring, and any other condition that may affect its safe operation.  
aFtER uSE:  
1. Remove and empty the Dust Bag.  
2. Wearing ANSI-approved safety glasses, use compressed air to blow saw  
dust out of the tool vents and off the surface of the tool.  
3. Wipe external surfaces of the tool with clean cloth.  
4.  
WaRninG! if the supply cord of this power tool is damaged, it  
must be replaced only by a qualified service technician.  
Page 14  
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troubleshooting  
problem  
Tool will not start.  
possible causes  
1. Cord not connected.  
likely Solutions  
1. Check that cord is plugged in.  
2. No power at outlet.  
2. Check power at outlet. If outlet is unpowered,  
turn off tool and check circuit breaker. If breaker  
is tripped, make sure circuit is right capacity  
for tool and circuit has no other loads.  
3. Tool’s thermal reset breaker  
tripped (if equipped).  
3. Turn off tool and allow to cool.  
Press reset button on tool.  
4. Internal damage or  
wear. (Carbon brushes or  
switch, for example.)  
4. Have technician service tool.  
Tool operates slowly. Power being reduced by long or  
small diameter extension cord.  
Eliminate use of extension cord. If an extension  
cord is needed, use one with the proper  
diameter for its length and load. See Extension  
Cords in GROUNDING section.  
Performance  
1. Blade dull or damaged.  
1. Keep blade sharp. Replace as needed.  
decreases over time.  
2. Carbon brushes worn  
2. Have qualified technician replace brushes.  
or damaged.  
Excessive noise  
or rattling.  
Overheating.  
Internal damage or wear. (Carbon  
brushes or bearings, for example.)  
1. Forcing tool to work too fast.  
Have technician service tool.  
1. Allow tool to work at its own rate.  
2. Blade dull or damaged.  
2. Keep blade sharp. Replace as needed.  
3. Blocked motor housing vents.  
3. Wear ANSI-approved safety goggles and NIOSH-  
approved dust mask/respirator while blowing  
dust out of motor using compressed air.  
4. Motor being strained by long or  
small diameter extension cord.  
4. Eliminate use of extension cord.  
If an extension cord is needed, use one with  
the proper diameter for its length and load.  
See Extension Cords in GROUNDING section.  
Follow all safety precautions whenever diagnosing or servicing  
the tool. Disconnect power supply before service.  
Item 68987  
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Page 15  
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parts list and Diagram  
plEaSE REaD thE FOllOWinG caREFully  
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM  
IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR DISTRIBUTOR  
MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS  
qUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS qUALIFIED TO REPLACE  
Any PARTS oF The PRoDuCT. In FACT, The MAnuFACTuReR AnD/oR DISTRIBuToR eXPReSSLy  
STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND  
LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY  
ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS  
THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.  
parts list  
part  
Description  
Qty  
1
1
1
2
2
1
1
1
1
4
1
1
1
1
2
1
1
11  
2
1
1
2
1
1
1
1
2
1
1
5
1
1
1
1
1
2
4
2
2
1
1
1
2
1
part  
Description  
Qty  
1
1
1
1
1
1
1
2
1
1
1
1
4
1
2
1
1
1
1
1
1
1
4
2
1
1
2
1
1
1
1
1
1
2
1
1
2
1
1
1
1
1
2
2
1
2
3
4
5
6
7
8
9
Bearing Set  
46 Spring Washer φ8  
Bearing 60017  
Armature  
47 Nut M8  
49 Fan Guide  
Check Ring φ10  
Screw M4x10  
Bearing 60100  
Spindle Lock Button  
Spring  
50 Spanner Wrench  
51 Inner Flange  
52 Blade  
53 Outer Flange  
54 Flat Screw M4X8  
55 Depth Setting Bolt M4X25  
56 Depth Base Block  
57 Depth Slide Plate  
58 Guide Bar 1  
59 Screw M4X14  
60 Guide Bar 2  
61 Spring  
62 Set Screw M4  
63 Compressing Spring  
64 Steel Ball φ3  
65 Depth Adjustment Dial  
66 Shoulder Screw M5X12  
67 Slide Plate  
Gear Box  
10 Screw  
11 Check Ring φ5  
12 Bearing φ12Xφ8X10  
13 Spring Washer φ10  
14 Gear  
15 Screw M4X12  
16 Bearing 80201  
17 Front Cap  
18 Spring Washer φ4  
19 Screw M4X14  
20 Woodruff-Key 3X10  
21 Spindle  
22 Screw M6X14  
23 Upper Handle  
24 Handle(L)  
68 Base Plate  
69 Flat Screw M4X6  
70 Screw M3X6  
71 Depth Mark  
25 Handle(R)  
26 Cord Clamp  
27 Screw ST4.2X13  
28 Capacitor  
29 Trigger  
30 Screw ST4.2X16  
31 Cord Plug  
32 Cord Protector  
33 Brush Cap (R)  
34 Brush Cap(L)  
35 Brush Spring  
36 Label  
37 Screw ST3.5X10  
38 Brush  
39 Brush Holder  
40 Roller φ3X4.9  
41 Housing  
72 Support Stand Board  
73 Allen Bolt M4X16  
74 Height Locking Knob  
75 Pressed Block  
76 Height Fence  
77 Depth Pointer  
78 Screw M4X14  
79 Angle Pointer  
80 Dowel  
81 Angle Fence  
82 Angle Ruler  
83 Sink Screw  
84 Angle Locking Knob  
85 Dust Port  
86 Dust Chute  
87 Dust Bag  
88 Nut  
89 Cap  
90 Spring Washer 65Mn(φ4)  
42 Stator  
43 Screw M4X55  
45 Pinion  
Page 16  
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assembly Diagram  
Item 68987  
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Page 17  
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Record product’s Serial number here:  
note: If product has no serial number, record month and year of purchase instead.  
note: Some parts are listed and shown for illustration purposes only,  
and are not available individually as replacement parts.  
Page 18  
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Item 68987  
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limited 90 Day Warranty  
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards,  
and warrants to the original purchaser that this product is free from defects in materials and workmanship for the  
period of 90 days from the date of purchase. This warranty does not apply to damage due directly or indirectly,  
to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper  
installation, normal wear and tear, or to lack of maintenance. We shall in no event be liable for death, injuries  
to persons or property, or for incidental, contingent, special or consequential damages arising from the use of  
our product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the  
above limitation of exclusion may not apply to you. ThIS WARRAnTy IS eXPReSSLy In LIeu oF ALL oTheR  
WARRAnTIeS, eXPReSS oR IMPLIeD, InCLuDIng The WARRAnTIeS oF MeRChAnTABILITy AnD FITneSS.  
To take advantage of this warranty, the product or part must be returned to us with transportation charges  
prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise.  
If our inspection verifies the defect, we will either repair or replace the product at our election or we may  
elect to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will  
return repaired products at our expense, but if we determine there is no defect, or that the defect resulted  
from causes not within the scope of our warranty, then you must bear the cost of returning the product.  
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.  
Item 68987  
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Page 19  
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3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353  
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