Harbor Freight Tools Chainsaw 67255 User Manual

14” electric chainsaw  
67255  
set up and Operating instructiOns  
Visit our website at: http://www.harborfreight.com  
read this material before using this product.  
Failure to do so can result in serious injury.  
saVe this manual.  
©
®
Copyright 2009 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.  
For technical questions or replacement parts, please call 1-800-444-3353.  
Revised Manual 10h  
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not avoided, could result in  
minor or moderate injury.  
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.  
nOtice is used to  
address practices  
not related to personal injury.  
cautiOn, without  
the safety alert  
symbol, is used to address  
practices not related to  
personal injury.  
chain saw safety warnings  
impOrtant saFetY  
inFOrmatiOn  
in this manual, on the labeling,  
and all other information  
warning read all safety  
warnings and instructions.  
Failure to follow the warnings and  
instructions may result in electric  
shock, fire and/or serious injury.  
save all warnings and  
provided with this product:  
instructions for future reference.  
this is the safety alert  
symbol. it is used to alert  
you to potential personal  
injury hazards. Obey all  
safety messages that  
1. double insulated chain saws  
a. Replacement Parts - When servicing  
use only identical replacements  
parts.  
follow this symbol to avoid  
possible injury or death.  
b. Polarized Plugs - To reduce the risk  
of electric shock, this equipment has  
a polarized plug (one blade is wider  
than the other). This plug will fit in a  
polarized outlet only one way. If the  
plug does not fit fully in the outlet,  
reverse the plug. If it still does not  
fit, contact a qualified electrician  
to install the proper outlet. Do not  
change the plug in any way.  
danger indicates  
a hazardous  
situation which, if not  
avoided, will result in death or  
serious injury.  
warning  
indicates a  
hazardous situation which, if  
not avoided, could result in  
death or serious injury.  
2. keep work area clean.  
a. Cluttered areas invite injuries.  
cautiOn, used  
with the safety  
alert symbol, indicates a  
hazardous situation which, if  
b. Do not start cutting until you have  
a clear work area, secure footing,  
and a planned retreat path from the  
falling tree.  
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3. consider work area environment.  
a. Cut wood only.  
a. Use extreme caution when cutting  
small size brush and saplings  
b. Don’t use chain saw for purpose  
not intended – for example – Don’t  
use chain saw for cutting plastic,  
masonry, non-wood building  
materials.  
because the slender material may  
catch the saw chain and be whipped  
toward you or pull you off balance.  
b. Do not operate a chain saw in a tree  
9. dress properly.  
unless specifically trained to do so.  
a. Do not wear loose clothing or  
jewelry. They can get caught in  
moving parts. Rubber gloves and  
non-skid footwear are recommended  
when working outdoors.  
c. When cutting a limb that is under  
tension be alert for spring back so  
that you will not be struck when  
the tension in the wood fibers is  
released.  
b. Wear protective hair covering to  
contain long hair.  
d. Do not expose chain saw to rain.  
e. Do not use chain saw in damp or  
wet locations.  
10. use ansi-approved safety  
glasses.  
f. Do not use chain saw in presence of  
Also use safety footwear; snug fitting  
clothing; protective gloves; steel-toed  
boots; hearing and head protection.  
flammable liquids or gases.  
4. guard against electric shock.  
11. carrying saw.  
Prevent body contact with grounded  
surfaces. For example: metal pipes,  
wire fences.  
Carry the chain saw by the front  
handle with the saw stopped, finger  
off the switch, the guide bar and saw  
chain to the rear.  
5. keep children away.  
a. Do not let visitors contact chain saw  
or extension cord.  
12. maintain chain saw with care.  
a. Inspect chain saw cords periodically  
and if damaged, have repaired by  
authorized service facility.  
b. All visitors should be kept away from  
work area.  
6. store idle chain saw.  
b. Keep cord clear of the chain  
and operator at all times. Never  
carry saw by the cord or pull it to  
disconnect from receptacle. Keep  
cord from oil and sharp edges.  
a. When not in use, chain saws should  
be stored in a dry, and high or  
locked-up place – out of the reach of  
children.  
c. Inspect extension cords periodically  
and replace if damaged.  
b. When storing saw, use a scabbard  
or carrying case.  
d. Keep tools sharp and clean for better  
and safer performance.  
7. dont Force chain saw  
It will do the job better and safer at  
the rate for which it was intended.  
e. Follow instructions for lubricating  
and changing accessories.  
8. use right tool.  
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f. Keep handles dry, clean, and free  
from oil and grease.  
assembled. Be sure that the saw  
chain stops moving when the trigger  
is released.  
13. disconnect chain saw.  
Disconnect chain saw when not  
in use, before servicing, and  
when changing accessories and  
attachments, such as saw chain and  
guard.  
16. guard against kickback.  
WARNING: KICKBACK may occur  
when the nose or tip of the guide bar  
touches an object, or when the wood  
closes in and pinches the saw chain  
in the cut. Tip contact in some cases  
may cause a lightning fast reverse  
reaction, kicking the guide bar up and  
back towards the operator. Pinching  
the saw chain along the top of the  
guide bar may push the guide bar  
rapidly back towards the operator.  
Either of these reactions may cause  
you to lose control of the saw which  
could result in serious injury to user.  
14. stay alert.  
a. Watch what you are doing. Use  
common sense. Do not operate  
chain saw when you are tired.  
b. Keep all parts of the body away from  
the saw chain when the motor is  
operating.  
c. Before you start the saw, make  
sure the saw chain is not contacting  
anything.  
the following precautions should  
be followed to minimize kickback:  
15. check damaged parts.  
a. Grip Saw firmly.  
a. Before further use of the chain  
saw, a guard or other part that  
is damaged should be carefully  
checked to determine that it will  
operate properly and perform  
Hold the chain saw firmly with both  
hands when the motor is running.  
Use a firm grip with thumbs and  
fingers encircling the chain saw  
handles.  
its intended function. Check for  
alignment of moving parts, binding  
of moving parts, breakage of parts,  
mounting, and any other conditions  
that may affect its operation. A guard  
or other part that is damaged should  
be properly repaired or replaced by  
an authorized service center unless  
otherwise indicated elsewhere in this  
instruction manual.  
b. Do not over reach.  
c. Keep proper footing and balance at  
all times.  
d. Don’t let the nose of the guide bar  
contact a log, branch, ground or  
other obstruction.  
e. Don’t cut above shoulder height.  
f. Use devices such as low kickback  
chain, guide bar nose guards and  
special guide bars that reduce the  
risks associated with kickback.  
b. Have defective switches replaced by  
authorized service center.  
c. Do not use chain saw if switch does  
not turn it off.  
17. power supply  
d. Do not operate a chain saw that  
is damaged, improperly adjusted,  
or is not completely and securely  
Connect chain saw to correct voltage.  
Be sure that the voltage supplied is  
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the same as that specified on the  
nameplate of the tool.  
cause cancer, birth defects or other  
reproductive harm. Some examples  
of these chemicals are:  
18. danger! People with pacemakers  
should not use chain saws. Chain  
saws produce strong electromagnetic  
fields that can cause pacemaker  
interference or pacemaker failure.  
People with pacemakers should  
• 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.)  
consult their physician(s) for advice.  
19. Do not touch guide bar tip to any  
object. Tip contact may cause  
guide bar to move suddenly  
upward and backwards.  
®
20. Use only identical Oregon Chain  
and Bar replacement components.  
21. Maintain labels and nameplates on  
the tool. These carry important safety  
information. If unreadable or missing,  
contact Harbor Freight Tools for a  
replacement.  
27. 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.)  
22. Avoid unintentional starting. Prepare  
to begin work before turning on the  
tool.  
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.  
28. 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.  
24. 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.  
25. This product is not a toy. Keep it out  
of reach of children.  
Vibration safety  
26. WARNING: Some dust created by  
power sanding, sawing, grinding,  
drilling, and other construction  
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  
activities, contains chemicals  
known [to the State of California] to  
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reduce the risk of vibration-related  
injury:  
grOunding  
tO preVent  
electric shOck  
and death FrOm  
incOrrect grOunding  
wire cOnnectiOn:  
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 symptoms  
related to vibration (such as tingling,  
numbness, and white or blue fingers),  
seek medical advice as soon as  
possible.  
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.  
2. Do not smoke during use. Nicotine  
reduces the blood supply to the  
hands and fingers, increasing the risk  
of vibration-related injury.  
double insulated tools: tools  
with two prong plugs  
3. Wear suitable gloves to reduce the  
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.  
Outlets for 2-prong plug  
7. To reduce vibration, maintain the tool  
as explained in this manual. If any  
abnormal vibration occurs, stop use  
immediately.  
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  
saVe these  
instructiOns.  
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National Electrical Code. (see  
Outlets for 2-prong plug.)  
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.  
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.)  
8. Protect the extension cords from  
sharp objects, excessive heat, and  
damp or wet areas.  
extension cords  
9. Use extension cords with at least a  
gauge wire as large as indicated in  
table a for 7.1 to 12.0 Amperes.  
1. Grounded tools require a three wire  
extension cord. Double Insulated  
tools can use either a two or three  
wire extension cord.  
10. Keep the cord away from the cutting  
area. Position the cord so that it will  
not be caught on branches, and the  
like, during cutting.  
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.  
recOmmended minimum wire  
gauge FOr extensiOn cOrds*  
(120/240 VOlt)  
extensiOn cOrd  
(see table a.)  
nameplate  
length  
amperes  
(at full load)  
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.)  
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  
5.1 – 7.0  
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.)  
7.1 – 12.0  
12.1 – 16.0  
16.1 – 20.0  
-
-
-
* based on limiting the line  
voltage drop to five volts at  
150% of the rated amperes.  
table a  
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.)  
6. If you are using an extension cord  
outdoors, make sure it is marked with  
the suffix “W-A” (“W” in Canada) to  
indicate it is acceptable for outdoor  
use.  
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symbology  
Double Insulated  
Canadian Standards Association  
Underwriters Laboratories, Inc.  
Volts Alternating Current  
Amperes  
V~  
a
No Load Revolutions per Minute  
(RPM)  
n xxxx/min.  
0
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speciFicatiOns  
chain saw Features  
Front Handle  
(Behind Guard)  
Electrical  
Input  
120 V~ / 60 Hz / 9 A (Rated)  
Lockout Switch (48)  
Trigger Switch  
(49)  
Bar Oil Cap (19)  
Motor  
Speed  
Front Handle  
Guard (30)  
5,600 RPM (No Load)  
Type  
Chain/Bar/Sprocket Oil  
Chain Oil  
Capacity 6 oz (175 ml)  
®
14” Oregon Bar:  
Spiked Bumper  
Chain Guide Bar (71)  
Saw Chain (72)  
Model # 140SDEA041  
Sprocket nose  
and  
Power  
Cord  
Clip  
®
Cutting  
Oregon Chain:  
Rear  
Handle  
Power Cord  
(52)  
Attachment Model #91PJ052X  
Anti-Kickback full skip chain  
Drive  
Cover  
(3)  
Pitch: 3/8”  
Gauge: 0.050”  
# of links: 52  
Guide  
Bar  
Nose  
Figure 1  
note: This electric chain saw is for cutting  
small logs and for lighter weight  
trimming jobs. A more powerful chain  
saw may be needed for heavy duty  
use.  
1. Bucking - The process of cross  
cutting a felled tree or log into  
lengths.  
unpacking  
2. Drive Sprocket or Sprocket - The  
Toothed part that drives the Saw  
Chain.  
When unpacking, make sure that the  
item is intact and undamaged. If any parts  
are missing or broken, please call Harbor  
Freight Tools at 1-800-444-3353 as soon  
as possible.  
3. Felling - The process of cutting down  
a tree.  
4. Felling Back Cut - The final cut in a  
tree felling operation made on the  
opposite side of the tree from the  
notching undercut.  
note: For additional information regarding  
the parts listed in the following pages,  
refer to the Assembly Diagram near  
the end of this manual.  
5. Front Handle - The support handle  
located at or toward the front of the  
Chain Saw.  
warning: To avoid possible serious  
injury when the Chain Saw is running,  
ALWAYS maintain a firm grip with one  
hand on the Front Handle and the  
other hand on the Rear Handle.  
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6. Front Handle Guard - A guard that  
protects your hand on the Front  
Handle from the Saw Chain.  
15. Oiler Control - a System for oiling the  
Guide Bar and Saw Chain.  
16. Rear Handle - The support handle  
located at or toward the rear of the  
saw.  
7. Chain Guide Bar - A solid railed  
structure that supports and guides  
the Saw Chain.  
17. Reduced Kickback Guide Bar  
- A Guide Bar which has been  
demonstrated to reduce kickback  
significantly.  
8. Kickback - The backward or upward  
motion, or both of the Guide Bar,  
occurring when the Saw Chain near  
the nose of the top area of the Guide  
Bar contacts any object such as a log  
or branch, or when the wood closes  
in and pinches the Saw Chain in the  
cut.  
18. Replacement Saw Chain - A chain  
that complies with the kickback  
performance requirements of ANSI  
B175.1-1991 when tested with  
specific chain Saws. It may not meet  
the ANSI performance requirements  
when used with other saws.  
9. Kickback, Pinch - The rapid pushback  
of the saw which can occur when  
the wood closes in and pinches the  
moving saw chain in the cut along the  
top of the Guide Bar.  
19. Saw Chain - A loop of chain having  
cutting teeth, that cut the wood, and  
that is driven by the motor and is  
supported by the Guide Bar.  
10. Kickback, Rotational - The rapid  
upward and backward motion of  
the saw which can occur when the  
moving Saw Chain near the upper  
portion of the nose of the Guide Bar  
contacts an object, such as a log or  
branch.  
20. Spiked Bumper (Spike) - The pointed  
tooth or teeth for use when felling or  
bucking to pivot the saw and maintain  
position while sawing.  
21. Trigger Switch - A device that when  
operated will complete or interrupt an  
electrical power circuit to the motor of  
the Chain Saw.  
11. Low-Kickback Chain - A Chain  
that complies with the kickback  
performance requirements of ANSI  
B175.1-1991 when tested on a  
representative sample of chain saws.  
12. Lockout Switch - A movable stop that  
prevents the unintentional operation  
of the Trigger Switch until manually  
activated.  
13. Normal Cutting Position - Those  
positions assumed in performing the  
bucking and felling cuts.  
14. Notching Undercut - A notch cut in a  
tree that directs the tree’s fall.  
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note: New Saw Chains often need to  
be tensioned several times during  
first use. Check a new Saw Chain’s  
tension often when first using.  
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.  
While wearing heavy duty gloves,  
use your index finger and thumb to  
carefully grab the Saw Chain in the  
middle section under the Guide Bar.  
Pull the Saw Chain away from the  
Guide Bar. The Saw Chain should  
snap back against the Guide Bar. The  
Chain should fit snuggly in the groove  
of the Chain Guide Bar, yet you  
saw chain tension  
tO preVent  
seriOus injurY  
FrOm accidental  
should still be able to slide the chain  
along the Chain Guide Bar by hand.  
There should be no sagging between  
the Guide Bar and Saw Chain on the  
underside of the Guide Bar.  
OperatiOn:  
turn the power switch of the  
tool off and unplug the tool  
from its electrical outlet  
before adjusting tool or  
installing accessories.  
If the Saw Chain needs adjustment:  
Guide Bar (71)  
1. Loosen the Nut (2) on the on the  
Tension Screw (26)  
Drive Cover (3).  
2. Pull up on the Guide Bar Nose and  
hold it up while making the tension  
adjustment.  
3. Turn the Chain Tension Screw (26)  
clockwise, until the Saw Chain makes  
contact along the bottom of the Chain  
Guide Bar. Turn the Tension Screw  
1/4 turn more.  
Screw Driver  
Figure 2  
4. Continue to hold the Guide Bar Nose  
up while tightening the Nut.  
After this adjustment is made, check  
the Saw Chain tension again by  
pulling the Saw Chain away from the  
top of the Guide Bar, then making  
sure that it can slide along the Guide  
Bar. Also, test the tension by pulling  
the Saw Chain away from the bottom  
of the Guide Bar, then letting it go.  
The Saw Chain should snap back  
into place in the groove of the Guide  
Figure 3  
The Chain Saw is fully assembled,  
but may require a minor adjustment  
of the Saw Chain tension. Before  
using, check the Saw Chain tension.  
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Bar. If needed, repeat the above  
adjusting steps to achieve the correct  
tension.  
the electrical cord is away from the  
cutting area.  
work piece and work area set up  
1. 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.  
2. Route the extension cord along a  
safe route to reach the work area  
without creating a tripping hazard  
or exposing the extension cord to  
possible damage. The extension  
cord must reach the work area with  
enough extra length to allow free  
movement while working.  
note: Front Handle Guard not  
shown in illustration  
Figure 4  
4. Grasp the Handles with both hands.  
Always grip the handle with the  
thumb and fingers encircling the  
handle as show above.  
3. Secure the extension cord by  
snapping it in the Power Cord Clip  
so there will be no tension on the  
connection between the Power Cord  
(52) and the extension cord.  
5. Push forward on the Lock-out Switch  
(48), then squeeze and hold the  
Trigger Switch (49). nOte: The  
Trigger Switch cannot be activated  
unless the Lock-out Switch is  
4. There must not be objects, such as  
utility lines, gas or water pipes nearby  
that will present a hazard while  
working.  
depressed. With the Chain Saw  
running, you may release pressure  
on the Lock-out Switch. Releasing  
the Trigger Switch will stop the motor.  
general Operating instructions  
danger! To prevent serious injury and  
death from kickback: Do not touch  
the Guide Bar Nose to the wood.  
1. Before cutting, remove the Oil Fill  
Cap. Inspect the Cap Gasket (21) for  
damage. Fill the oil reservoir to just  
below fill plug with Bar and Chain oil  
(not included). Then replace the Oil  
Fill Cap.  
6. When the Chain Saw reaches full  
speed, begin cutting with a light,  
downward pressure against the  
bottom mid-section of the Saw Chain  
(72). Allow the Saw Chain to cut  
at its own rate. Applying too much  
pressure can damage the tool.  
2. Stand in front of the wood to be cut  
with your feet firmly in place.  
3. Connect the outdoor rated extension  
cord (not included) to the Power Cord  
(52) of the Chain Saw. Make sure  
danger! When cutting loose, round,  
wood stock, make sure to place  
the wood stock on a sawhorse, in a  
cradle or use a timberjack (all sold  
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separately) to avoid grabbing and  
throw back.  
7. When the Saw is cooled completely,  
cover the Chain Guide Bar (71) with  
the Guide Bar Sheath (73).  
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.  
basic Felling, limbing, and  
bucking cut techniques  
Figure 5  
Felling  
2. A retreat path should be planned and  
cleared as necessary before cuts  
are started. The retreat path should  
extend back and diagonally to the  
rear of the expected line of fall.  
1. When felling a tree, make sure the  
tree is not felled in a manner that  
would endanger any person, strike  
any utility line, or cause any property  
damage. Before felling is started,  
consider the natural lean of the tree,  
the location of larger branches, and  
the wind direction, to judge which  
way the tree will fall. The Chain Saw  
operator should keep on the uphill  
side of the terrain, as the tree will  
likely roll or slide downhill after it is  
felled.  
3. Remove dirt, stones, loose bark,  
nails, staples, wire, and other foreign  
objects from the tree where the cuts  
are to be made.  
Figure 6  
4. When making a notching undercut,  
make the notch 1/3 the diameter  
of the tree, perpendicular to the  
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direction of the fall. Make the lower  
horizontal notching cut first. This  
will help to avoid pinching of either  
the Saw Chain or the Chain Guide  
Bar when the second notch is being  
made.  
limbing  
5. When making a felling back cut,  
make the felling back cut at least  
2 inches higher than the horizontal  
notching cut. Keep the felling back  
cut parallel to the horizontal notching  
cut. Make the felling back cut so  
that enough wood is left to act as a  
hinge. The hinge wood keeps the  
tree from twisting and falling in the  
wrong direction. Do not cut through  
the hinge.  
Figure 7  
8. When limbing (trimming) branches  
from a fallen tree, leave the larger,  
lower limbs to support the log off  
the ground. Remove the small limbs  
in one cut. Branches under tension  
should be cut from the bottom up to  
avoid binding the Saw Chain.  
6. As the felling cut gets close to the  
hinge the tree should begin to fall.  
If there is any chance that the tree  
may not fall in the desired direction,  
or it may rock back and bind the Saw  
Chain (72), stop cutting before the  
felling back cut is complete and use  
wedges of wood, plastic, or aluminum  
to open the cut and drop the tree  
along the desired line of fall.  
bucking  
9. Bucking a log is cutting a log into  
lengths. It is important to make sure  
your footing is firm and your weight  
is evenly distributed on both feet.  
When possible, the log should be  
raised and supported by the use of  
limbs, logs, chocks or a timberjack.  
7. When the tree begins to fall, remove  
the Chain Saw from the cut. Turn  
off the Chain Saw and put it down.  
Then, use the retreat path planned.  
Be alert for overhead limbs falling,  
and watch your footing.  
Figure 8  
10. To Overbuck is when the log is  
supported along its entire length and  
is cut from the top. Allow the Saw to  
pull forward into the top of the log  
until the Spiked Bumper contacts on  
the log. Then pivot the saw through  
the log.  
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ND  
2
CUT OVERBUCK (2/3 DIAMETER)  
TO MEET 1ST CUT (TO AVOID PINCHING)  
ST  
1
CUT UNDERBUCK  
(1/3 DIAMETER)  
(TO AVOID  
SPLINTERING)  
Figure 9  
11.  
To Underbuck is when the log is  
supported on one end, and a cut 1/3  
the diameter of the log is made from  
the underside of the log. Then, the  
finished cut is made by overbucking  
to meet the first cut.  
STAND ON UPHILL  
SIDE WHEN CUTTING  
BECAUSE LOG MAY ROLL  
Figure 11  
13.  
st  
1
CUT OVERBUCK (1/3 DIAMETER)  
(TO AVOID SPLINTERING)  
When bucking on a slope, always  
stand on the uphill side of the log.  
When “cutting through”, to maintain  
complete control release the cutting  
pressure near the end of the cut  
without relaxing your grip on the  
Chain Saw Handles. Do not allow  
the Saw Chain (72) to contact the  
ground. After completing the cut,  
wait for the Saw Chain to stop before  
moving the Chain Saw. Always turn  
off the Chain Saw before moving from  
tree to tree.  
nd  
2
CUT UNDERBUCK (2/3 DIAMETER)  
ST  
TO MEET 1 CUT  
(TO AVOID PINCHING)  
Figure 10  
12. When the log is supported on both  
ends, cut 1/3 of the log’s diameter  
from the top overbuck. Then, make  
the finished cut by underbucking the  
lower 2/3 diameter of the log to meet  
the first cut.  
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3. iF the saw chain (72) becOmes  
lOOse, adjust the Saw Chain  
tension as described under Tool  
Setup.  
maintenance and  
serVicing  
Procedures not specifically  
explained in this manual  
must be performed only by a  
qualified technician.  
4. when necessarY, have the  
Saw Chain (72) sharpened by a  
qualified technician, following the  
manufacturer’s instructions.  
tO preVent  
seriOus injurY  
FrOm accidental  
5. periOdicallY, turn the Chain  
Guide Bar (71) over to distribute the  
wear on it. Replace the Chain Guide  
Bar when bent, cracked, or when the  
Saw Chain (72) moves excessively  
from side to side on the Chain Guide  
Bar.  
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.  
6. aFter use, wipe the outside  
surface of the Chain Saw with a  
clean, dry cloth. If necessary use a  
mild detergent. Do not use solvents.  
Do not immerse this tool in liquid.  
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.  
guide bar care  
Remove the Guide Bar after use to  
clean and grease.  
cleaning, maintenance, and  
lubrication  
Groove  
1. beFOre each use, inspect the  
general condition of the tool. Check  
for loose hardware, misalignment or  
binding of moving parts, cracked or  
broken parts, dull or damaged Saw  
Chain, damaged electrical wiring, and  
any other condition that may affect its  
safe operation.  
Oil Holes  
Grease Port  
Figure 12  
Remove sawdust and sap from  
the Bar Groove using a Guide Bar  
Cleaning tool (sold separately), then  
lubricate the nose sprocket at the  
ports with motor oil or bar oil.  
2. beFOre the First use, make  
sure the Oil Tank (18) is filled with  
Bar and Chain oil (not included). Oil  
is automatically applied to the Saw  
Chain when the Oil Reservoir is full.  
Reverse the Guide Bar when  
replacing the Saw Chain to prevent  
uneven wear.  
REV 10h  
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The flanges of the Guide Bar groove  
should always be parallel to each  
other. To check the Guide Bar:  
Follow the Saw Chain manufacturer’s  
instructions for sharpening the Saw  
Chain.  
Saw  
Chain  
replacing the saw chain  
Ruler  
warning! Do not attempt to install  
a saw chain or chain guide  
bar other than the size and  
Straight  
Gap  
Guide  
Bar  
type provided and listed in the  
Specifications Chart on page 10.  
Figure 13 - Normal Guide Bar  
1. Soak the new Saw Chain overnight  
in Chain/Bar/Sprocket oil (sold  
separately).  
Place a ruler along the surface of the  
Guide Bar and Saw Chain. If there is  
a gap, the bar is normal.  
2. Loosen the Nut (2) on the Drive  
Cover (3), then loosen the Chain  
Tension Screw counter clockwise  
until the Saw Chain is loose.  
Tilting  
Saw  
Chain  
Ruler  
Bent  
Guide  
Bar  
3. Unthread the Nut (2) and remove the  
Drive Cover (3).  
Figure 14 - Bent Guide Bar  
4. Push the Guide Bar towards the  
Sprocket to further loosen the Saw  
Chain.  
If the ruler is flush with the Guide Bar  
and Saw Chain, or the Chain tilts to  
one side, then the Bar is bent and  
needs to be repaired or replaced.  
5. Remove the Saw Chain (72) from the  
Sprocket then the Guide Bar (71).  
sharpening the saw chain  
For smooth and safe operation,  
always keep the Saw Chain cutters  
sharp.  
The cutters need to be sharpened  
when:  
Sprocket  
a. The sawdust becomes powder-like.  
b. You can’t make the cut without extra  
force.  
Figure 15  
note: Always check the condition of the  
Sprocket (6) when replacing the  
chain. The Sprocket should be  
c. The Chain Saw does not cut straight.  
d. Vibration increases.  
replaced if it shows signs of wear  
or is damaged. If needed, have the  
Sprocket replaced and the bearings  
greased by a qualified technician.  
warning: Be sure to wear safety gloves  
when handling the Saw Chain.  
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6. Flip the Chain Guide Bar over before  
mounting the new saw Chain. This  
will ensure that the Chain Guide Bar  
wears evenly over time.  
the Saw Chain Tension section, on  
page 12.  
warning! If the supply cord of this  
power tool is damaged, it must be  
replaced only by a qualified service  
technician.  
Direction of Saw  
Chain Cutters  
Guide  
Bar  
Saw  
Nose  
Figure 16  
7. Place the new Saw Chain around  
the Sprocket and over the Guide  
Bar. Make sure the Cutters of the  
Saw Chain are facing away from the  
Chain Saw along the top edge of the  
Guide Bar. Fit the Chain in the groove  
around the Guide Bar.  
8. Replace the Drive Cover (3).  
note: The tab on the Driver Cover (3)must  
slide into a slot on the Right Housing  
(29) and the lock-pin to be locked into  
the housing prior to securing the nut.  
Do not force.  
9. Finger tighten the Nut, then tension  
the Saw Chain following the steps in  
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cleaning, maintenance, and  
lubrication schedule  
note: This maintenance schedule  
is intended solely as a general  
guide. If performance decreases  
or if equipment operates unusually,  
check systems immediately. The  
maintenance needs of each piece  
of equipment will differ depending  
on factors such as duty cycle,  
temperature, air quality, and other  
factors. If you have doubts about your  
ability to safely service this tool, have  
a qualified technician service the  
equipment instead.  
note: These procedures are in addition to  
the regular checks and maintenance  
explained as part of the regular  
operation of the engine and  
equipment.  
weekly maintenance:  
a. Clean Guide Bar and turn over.  
b. Deburr Guide Bar following  
manufacturer’s instructions.  
c. Check Chain Sprocket for wear or  
damage.  
monthly maintenance:  
Clean Chain Oil Tank.  
if damaged:  
a. Replace Guide Bar if it becomes  
bent or damaged.  
b. Sharpen or replace Saw Chain.  
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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 completely.  
Restart motor.  
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.  
Use an extension cord with the proper  
wire gauge for its length and load. See  
Extension Cords in GROUNDING section  
(page 8).  
Performance  
decreases over time.  
1. Accessory dull or damaged.  
1. Keep cutting accessories sharp.  
Replace as needed.  
2. Carbon brushes worn or  
damaged.  
2. Have qualified technician replace  
brushes.  
Excessive noise or Internal damage or wear. (Carbon  
Have a technician service the tool.  
rattling.  
Overheating.  
brushes or bearings, for example.)  
1. Forcing tool to work too fast.  
1. Allow tool to work at its own pace.  
2. Accessory dull or damaged.  
2. Keep cutting accessories 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. Use an extension cord with the proper  
wire gauge for its length and load. See  
Extension Cords in GROUNDING section  
(page 8).  
Follow all safety precautions whenever diagnosing or servicing the  
tool. disconnect power supply before service.  
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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
23  
1
1
1
1
1
1
1
1
1
part  
description  
qty  
1
1
1
2
1
1
1
1
1
1
2
1
1
1
1
1
1
2
3
4
5
6
7
8
9
Nut Cover  
Nut M8  
21 Cap Gasket  
22 Valve  
23 Screw  
Drive Cover  
Seal Ring  
Retaining Ring Ø 7  
Sprocket  
Seal Cover  
24 Sunk Screw M4 x 10  
25 Insulation Blanket  
26 Tension Screw  
27 Tightening Nut  
28 Spring  
29 Right Housing  
30 Front Handle Guard  
31 Rubber Ring  
32 Oil Outlet Connection  
33 Screw M4 x 10  
34 Bearing  
Screw M4 x 16 (on page 17 & 18)  
Rubber Sleeve  
10 Connecting Plug  
11 Sponge  
12 Oil Outlet Connection  
13 Oil Outlet Tube  
14 Oil Inlet Tube  
15 Oil Tube Plate  
16 Screw M3 x 12  
17 Oil Oultet Tube  
18 Oil Tank  
35 Micro Switch  
36 Bolt M8  
37 Circlip Ø 16  
38 Output Shaft  
1
1
1
19 Bar Oil Cap  
1
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assemblY diagram  
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parts list  
part  
39 Gear  
description  
qty  
1
part  
description  
qty  
2
58 Brush Holder  
40 Trim Plate  
41 Bearing  
1
1
59 Plate  
60 Screw  
2
2
42 Motor Gear  
43 Backup Plate  
44 Front Bearing  
45 Rear Bearing  
46 Rotor  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
61 Stator  
62 Pump  
1
1
1
1
1
1
2
2
2
1
1
1
1
1
63 Oil Plug Cover  
64 Piston Support  
65 Worm Gear Shaft  
66 Worm Gear  
67 Spring Washer Ø 4  
68 Washer Ø 4  
69 Nut M4  
70 Stator Fixing Board  
71 Chain Guide Bar  
72 Saw Chain  
73 Guide Bar Sheath  
74 Wrench  
47 Spring  
48 Lock-out Switch  
49 Trigger Switch  
50 Trigger Spring  
51 Cable Sheath  
52 Power Cord  
53 Cable Plate  
54 Left Housing  
55 Screw  
56 Motor Rear Holder  
57 Carbon Brush  
1
2
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assemblY diagram  
record products 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.  
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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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