Chicago Electric Chainsaw 68316 User Manual

Owner’s Manual & Safety Instructions  
Save This Manual Keep this manual for the safety warnings and precautions, assembly, operating,  
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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 68316  
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REV 12b  
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 2010 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 (cont.)  
5. When operating a power tool outdoors, use  
an extension cord suitable for outdoor use.  
Use of a cord suitable for outdoor use  
6. If operating a power tool in a damp location  
is unavoidable, use a Ground Fault Circuit  
Interrupter (GFCI) protected supply.  
reduces the risk of electric shock.  
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.  
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.  
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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.  
Circular Saw Safety Warnings  
If the blades become twisted or misaligned  
in the cut, the teeth at the back edge of the  
blades can dig into the top surface of the  
wood causing the blades to climb out of the  
kerf and jump back toward the operator.  
1.  
DANGER: Keep hands away from cutting  
area and the blades. Keep your second hand on  
auxiliary handle, or motor housing. If both hands  
are holding the saw, they cannot be cut by the blades.  
2. Do not reach underneath the workpiece.  
The guard cannot protect you from the  
blades below the workpiece.  
Kickback is the result of saw misuse and/or incorrect  
operating procedures or conditions and can be  
avoided by taking proper precautions as given below:  
3. Adjust the cutting depth to the thickness of the  
workpiece. Less than a full tooth of the blades’  
teeth should be visible below the workpiece.  
a. Maintain a firm grip with both hands on the  
saw and position your arms to resist kickback  
forces. Position your body to either side of  
the blades, but not in line with the blades.  
Kickback could cause the saw to jump backwards,  
but kickback forces can be controlled by the  
operator, if proper precautions are taken.  
4. Never hold piece being cut in your hands  
or across your leg. Secure the workpiece  
to a stable platform. It is important to  
support the work properly to minimize body  
exposure, blade binding, or loss of control.  
b. When blades are binding, or when interrupting  
a cut for any reason, release the trigger  
and hold the saw motionless in the material  
until the blades come to a complete stop.  
Never attempt to remove the saw from the  
work or pull the saw backward while the  
blades are in motion or kickback may occur.  
Investigate and take corrective actions to  
eliminate the cause of blade binding.  
5. Hold power tool by insulated gripping  
surfaces when performing an operation  
where the cutting tool may contact hidden  
wiring or its own cord. Contact with a ″live″  
wire will also make exposed metal parts of the  
power tool ″live″ and shock the operator.  
6. When ripping always use a rip fence or straight  
edge guide. This improves the accuracy of cut  
and reduces the chance of blade binding.  
c. When restarting a saw in the workpiece,  
center the saw blades in the kerf and  
check that saw teeth are not engaged  
into the material. If saw blades are binding,  
they may walk up or kickback from the  
workpiece as the saw is restarted.  
7. 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.  
d. Support large panels to minimize the risk of  
blade pinching and kickback. Large panels tend  
to sag under their own weight. Supports must  
be placed under the panel on both sides, near  
the line of cut and near the edge of the panel.  
8. 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.  
e. Do not use dull or damaged blades.  
Unsharpened or improperly set blades  
produce narrow kerf causing excessive  
friction, blade binding and kickback.  
9. Causes and Operator Prevention of Kickback:  
Kickback is a sudden reaction to a pinched,  
bound or misaligned saw blades, causing  
an uncontrolled saw to lift up and out of  
the workpiece toward the operator;  
f. Blade depth and bevel adjusting locking levers  
must be tight and secure before making cut.  
If blade adjustment shifts while cutting,  
When the blades are pinched or bound  
tightly by the kerf closing down, the blades  
stall and the motor reaction drives the  
unit rapidly back toward the operator;  
it may cause binding and kickback.  
g. Use extra caution when making a  
″plunge cut″ into existing walls or other  
blind areas. The protruding blades may  
cut objects that can cause kickback.  
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Circular Saw Safety Warnings (cont.)  
10. Check lower guard for proper closing before  
each use. Do not operate the saw if lower  
guard does not move freely and close instantly.  
Never clamp or tie the lower guard into the  
open position. If saw is accidentally dropped,  
lower guard may be bent. Raise the lower guard  
with the retracting handle and make sure it  
17. Do not use blades made from high-speed steel,  
abrasive blades, metal-cutting blades or masonry-  
cutting blades. The guards of this saw are not  
designed to protect against the failure of such blades.  
18. Place the larger portion of the saw base on  
the larger, supported part of the workpiece.  
This will help maintain balance and  
moves freely and does not touch the blades or  
any other part, in all angles and depths of cut.  
control while the cut is completed.  
19. Closely observe position of saw’s housing  
during cut. Do not let housing bump  
up against material being cut.  
11. Check the operation of the lower guard spring.  
If the guard and the spring are not operating  
properly, they must be serviced before use.  
Lower guard may operate sluggishly due to damaged  
parts, gummy deposits, or a build-up of debris.  
20. Blades must be rated to at least the maximum  
speed marked on the tool. Use only blades  
designed SPECIFICALLY for this saw.  
12. Lower guard should be retracted manually  
only for special cuts such as ″plunge cuts″  
and ″compound cuts.″ Raise lower guard  
by retracting handle and as soon as blades  
enter the material, the lower guard must  
be released. For all other sawing, the lower  
guard should operate automatically.  
21. Maintain labels and nameplates on the tool.  
These carry important safety information.  
If unreadable or missing, contact Harbor  
Freight Tools for a replacement.  
22. Avoid unintentional starting.  
Prepare to begin work before turning on the tool.  
13. Always observe that the lower guard is covering  
the blades before placing saw down on bench  
or floor. Unprotected, coasting blades will cause  
the saw to walk backwards, cutting whatever  
is in its path. Be aware of the time it takes for  
the blades to stop after switch is released.  
23. 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.  
24. When using a handheld power tool,  
maintain a firm grip on the tool with both  
hands to resist starting torque.  
14. DO NOT USE THIS SAW WITH THE  
SAW HELD UPSIDE DOWN IN A VISE.  
The saw is not designed for such use and  
cannot be used safely in that position.  
25. 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.  
15. Do not use to cut logs, tree  
limbs, or uneven lumber.  
26. 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.  
16. Wet lumber, green (unseasoned) lumber,  
and pressure treated lumber all have  
an increased potential for kickback and  
should only be cut with blades for cutting  
that lumber type. Wear a NIOSH-approved  
respirator and have appropriate ventilation  
whenever cutting pressure treated lumber.  
27. This product is not a toy.  
Keep it out of reach of children.  
28. Verify that there are no utility lines or  
hardware in or near the workpiece.  
This is especially critical for plunge cuts.  
29. Do not depress the spindle lock when  
starting or during operation.  
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Circular Saw Safety Warnings (cont.)  
30. 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.)  
32. 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.  
31. 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:  
• 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.  
• Lead from lead-based paints  
• Crystalline silica from bricks and cement or other  
masonry products  
• Arsenic and chromium from  
chemically treated lumber  
Your risk from these exposures varies, depending  
on how often you do this type of work. To reduce  
your exposure to these chemicals: work in a well  
ventilated area, and work with approved safety  
equipment, such as those dust masks that are  
specially designed to filter out microscopic particles.  
(California Health & Safety Code § 25249.5, et seq.)  
33. 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.  
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. Use tools with the lowest vibration  
when there is a choice.  
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.  
4. Include vibration-free periods each day of work.  
5. Grip tool as lightly as possible (while still keeping  
safe control of it). Let the tool do the work.  
6. To reduce vibration, maintain the tool as  
explained in this manual. If any abnormal  
vibration occurs, stop use immediately.  
SAVE THESE INSTRUCTIONS.  
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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. 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.  
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  
Extension Cords  
1. Double Insulated tools can use either  
6. If you are using an extension cord outdoors, make  
sure it is marked with the suffix “W-A” (“W” in  
a two or three wire extension cord.  
Canada) to indicate it is acceptable for outdoor use.  
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.)  
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.  
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.)  
8. Protect the extension cords from sharp objects,  
excessive heat, and damp or wet areas.  
TABLE A: RECOMMENDED MINIMUM WIRE  
GAUGE FOR EXTENSION CORDS* (120/240 VOLT)  
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.)  
EXTENSION CORD  
LENGTH  
NAMEPLATE  
AMPERES  
(at full load)  
25’  
18  
50’  
14  
75’  
12  
10  
-
100’  
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.)  
7.1 – 12.0  
12.1 – 16.0  
16.1 – 20.0  
10  
14  
12  
-
12  
10  
-
* Based on limiting the line voltage drop to five volts at  
150% of the rated amperes.  
Symbology  
Double Insulated  
Volts Alternating Current  
V~  
Canadian Standards Association  
Underwriters Laboratories, Inc.  
Amperes  
A
n xxxx/min.  
No Load Revolutions  
per Minute (RPM)  
0
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Specifications  
DB5703  
3114052  
Electrical Rating  
120V~ / 60Hz / 7.5A  
4200 RPM  
Motor No Load Speed  
5″ (125mm) Maximum  
Blade Diameter  
Use ONLY blades specifically  
designed for this Double Cut Saw  
PVC Pipe  
up to 1″  
up to 1″  
up to 1″  
Copper Pipe  
Steel Pipe  
Cutting  
Corrugated Sheet Standard Thickness  
Capacities  
Sheet Steel  
up to 14 gauge  
Sheet Aluminum up to 1/8″  
Oak Wood up to 3/4″  
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.  
Assembly  
1. Find the Side Handle mounting  
hole on the side of housing.  
2. Use Nut and Washer to connect the Side  
Handle Support to the housing.  
Mounting  
Hole  
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3. Use the Hex Wrench to tighten Side  
Handle Support securely into place.  
4. Attach Side Handle to top of Side  
Handle Support using nut.  
Nut  
Functions  
Lubrication Unit  
Front Grip  
Switch  
Upper Guard  
Lower Guard  
Spindle Lock  
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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 – Blade Installation  
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 tool or installing accessories.  
TO PREVENT SERIOUS INJURY FROM FLYING FRAGMENTS:  
Do not use abrasive blades or masonry-cutting blades. The guards of this saw  
are not designed to protect against the failure of such blades.  
1. Press the Spindle Lock Pin on the outside of the  
housing. Turn blade slowly until pin locks back  
into place.  
3. Open the Lower Blade Guard and  
lift and remove Blade B.  
A
B
2. Unscrew the Lock Nut, turning it counterclockwise.  
4. Lift up and remove Blade A.  
B
A
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5. Place new Blade A onto the Flange  
with the “A” clearly visible.  
7. Thread Lock Nut onto Spindle shaft  
and tighten Lock Nut until secure.  
A
B
6. Place Blade B onto Spindle with “B” clearly visible.  
8. Inspect the blades to make sure that the  
teeth point in opposite directions.  
B
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Using Lubrication Unit  
1. The blades for the Double Cut Saw are  
“dry cut” teeth. This mean the blades only  
need to be lubricated in extreme cutting  
situations, such as when cutting aluminum,  
copper, stainless steel and cast iron.  
2. To use Lubrication Unit, use cutter paste  
that is in rod form which can be inserted  
into the center of the Lubrication Unit.  
3. Once paste rod is inserted, turn the  
Lubrication Unit’s feeder wheel.  
Work Piece and Work Area Set Up  
1. Wooden work piece selection:  
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.  
a. Work piece must be free of foreign  
objects and loose knots.  
b. Do not use to cut logs, tree limbs,  
or uneven lumber.  
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.  
c. 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.  
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General Operating Instructions  
1. Make sure that all guards are in place and in  
proper working order and that all adjustment  
knobs are tight before operation.  
Cutting Capacities  
up to 1″  
PVC Pipe  
Copper Pipe  
Steel Pipe  
up to 1″  
Do NOT operate Saw without blade guard or if  
blade guard is broken or not operating properly.  
up to 1″  
Corrugated Sheet Standard Thickness  
2. Use the Lubrication Unit when cutting Aluminium,  
Copper, Stainless Steel and Cast Iron.  
Sheet Steel  
up to 14 gauge  
up to 1/8″  
Sheet Aluminum  
Oak Wood  
These materials can soften and stick to the blades.  
up to 3/4″  
3. Before starting a cut, draw a guideline  
along the desired line of cut.  
7. Cut using steady, even pressure.  
Do NOT force the Saw. Forcing the saw  
causes rough cuts and could shorten the  
life of the saw or cause kickback.  
4. Place the front edge of the saw blades on that  
part of the workpiece that is solidly supported.  
5. Do NOT place the saw on the part of the  
workpiece that will fall off when the cut is made.  
NOTE: THIS SAW WORKS BEST FOR SHORT CUTS.  
For cuts longer than 6, it is especially important  
to follow the feed speed recommendations below,  
and stop the cut or feed more slowly if the  
motor starts slowing down during the cut or  
if the blades start separating.  
6. Slide the power switch forward to start the saw.  
Let the blades reach full speed before beginning cut.  
WARNING! Closely observe position of  
saw’s housing during cut. Do not let housing  
bump up against material being cut.  
For materials thicker than 1/16″,  
cuts longer than 6″ are not recommended.  
8. Feed blade straight into the cut.  
Feeding at an angle can damage the blade teeth.  
9. 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.  
Feed Speed  
Correct feed speed is determined by the hardness  
and the thickness of the material being cut.  
See following pages for how to cut certain cross sections.  
2. If the feed speed is too fast:  
a. The cut may split or splinter  
the workpiece.  
In thin materials, feed the blades down with the teeth  
protruding. Then move forward (or backward) for cutting.  
b. This will result in a poor cut with significant  
discharge on the lower side of the material.  
1. If the feed speed is too slow:  
c. If feed speed is not slowed, the split will  
grow bigger, potentially leading to  
a. The blades will only press down the  
material instead of cutting it.  
serious injury and property damage.  
b. The blade edges will glide and  
wear down the material.  
c. This will cause a poor cut and will cause  
excessive wear on the blades.  
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Cutting Techniques  
Rectangular Pipe  
U-Section  
Feed blade from corner to corner.  
Feed blade from corner to corner  
(where opposite corner would be).  
Pipes  
Flat Bar Iron  
Feed blade through object  
until it reaches lower edge,  
keeping blade at 90º angle.  
Feed blade at a 90º angle  
to the work surface.  
3/8in.  
Thin Plate  
Feed blade down about 3/8″ and start cut.  
REV 11h  
Page 14  
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SKU 68316  
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Spiral Tube And Longitudinal Cutting  
Feed blade through material so only  
about 3/8″ shows through. Do not drive  
it as far as entire cutting edge.  
Shaped Plate  
Rest plate on three mounts, making sure one is on either  
side of cut.  
Aluminum/Copper  
Corner Piece  
Use Lubrication Unit whenever cutting aluminum  
or copper.  
Feed blade diagonally  
through the work surface.  
SKU 68316  
For technical questions, please call 1-800-444-3353.  
Page 15  
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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  
1. 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.  
3. For blade changing instructions see “Tool Set Up  
– Blade Installation” on page 10.  
4. For lubrication instructions see  
“Using Lubrication Unit” on page 12.  
5.  
WARNING! If the supply cord of this  
power tool is damaged, it must be replaced  
only by a qualified service technician.  
2. AFTER USE, wipe external surfaces  
of the tool with clean cloth.  
Page 16  
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SKU 68316  
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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  
4. Have technician service tool.  
switch, for example.)  
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.  
1. Keep blades sharp. Replace as needed.  
Performance  
1. Blades dull or damaged.  
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. Blades misaligned.  
2. Check and correct blades to fence alignment.  
3. Keep blades sharp. Replace as needed.  
3. Blades dull or damaged.  
4. Blocked motor housing vents.  
4. Wear ANSI-approved safety goggles and  
NIOSH-approved dust mask/respirator while  
blowing dust out of motor using compressed air.  
5. Motor being strained by long or  
small diameter extension cord.  
5. 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.  
SKU 68316  
For technical questions, please call 1-800-444-3353.  
Page 17  
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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
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
4
4
1
1
1
1
1
1
1
2
1
1
1
1
Part  
Description  
Qty.  
1
4
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
2
1
1
1
1
1
2
2
1
4
1
1
2
1
2
1
1
1
2
3
4
5
6
7
8
9
Bolt  
39 Bearing  
Outer Flange  
Saw Blade B  
Saw Blade A  
Guard Support  
Guard Support Washer  
Moving Guard  
Spring  
40 Screw  
41 Gear Box  
42 Oil Cap  
43 C Clip  
44 Spring  
45 Lock Pin  
46 Front Handle  
47 Bolt  
48 C Washer  
49 Front Handle Support  
50 C Clip  
Bolt  
10 Washer  
11 Rubber Pin  
12 Bolt  
13 C Washer  
14 Stationary Guard  
15 Pin  
51 Bolt  
52 C Washer  
53 Triangle Press Cover  
54 Bearing  
55 Middle Board  
56 Rotor  
16 Screw  
17 Lubrication Unit  
18 Lubrication Knob  
19 Inner Flange  
20 Washer  
21 C Clip  
22 Bearing  
23 Shaft Sleeve  
24 Bolt  
25 C Washer  
26 Washer  
27 Gear Box Cover  
28 Bearing  
29 C Clip  
30 Bearing Sleeve  
31 Bearing  
32 Gear Wheel Upper  
33 Bearing  
34 Flexible Washer  
35 Shaft  
36 Half Circle Key  
37 Lower Gear  
38 Washer  
57 Bearing  
58 Bearing Sleeve  
59 Motor Cover  
60 Screw  
61 Stator  
62 Motor Housing  
63 Label  
64 Switch Lever  
65 Switch  
66 Carbon Brush  
67 Brush Holder  
68 Label  
69 Screw  
70 Internal Switch  
71 Power Cable Clamp  
72 Screw  
73 Rear Housing  
74 Screw  
75 Power Cord Guard  
76 Power Cord  
Page 18  
For technical questions, please call 1-800-444-3353.  
SKU 68316  
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Assembly Diagram  
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.  
SKU 68316  
For technical questions, please call 1-800-444-3353.  
Page 19  
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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.  
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353  
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