CHICAGO 67434 Installation manual

12V LITHIUM-ION POWERED
CORDLESS POWER CUTTER
67434
SET UP AND OPERATING INSTRUCTIONS
Distributed exclusively by Harbor Freight Tools®.
3491 Mission Oaks Blvd., Camarillo, CA 93011
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.
Use with
Lithium-Ion Battery Pack (SKU 67120)
and
Lithium-Ion Battery Charger (SKU 67104)
(Both Sold Separately)

Page 2 For technical questions, please call 1-800-444-3353. SKU 67434
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.
IMPORTANT SAFETY
INFORMATION
In this manual, on the labeling,
and all other information
provided with this product:
This is the safety alert
symbol. It is used to alert
you to potential personal
injury hazards. Obey all
safety messages that
follow this symbol to avoid
possible injury or death.
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.
CAUTION, used
with the safety
alert symbol, indicates a
hazardous situation which, if
not avoided, could result in
minor or moderate injury.
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.
Lithium Battery Safety Warnings
LITHIUM-ION BATTERIES STORE
A LARGE AMOUNT OF ENERGY
AND WILL VENT FIRE OR
EXPLODE IF MISTREATED:
Keep Battery Pack (SKU 67120)1.
dry.
DO NOT DO ANY OF THE2.
FOLLOWING TO THE BATTERY
PACK:
Open,a.
Drop,b.
Short-circuit,c.
Incinerate, ord.
Expose to temperatures greatere.
than 140°F.
Charge Battery Pack only according3.
to the instructions indicated in the
Battery Charger manual.
Inspect Battery Pack before4.
every use; do not use or charge if
damaged.

Page 3For technical questions, please call 1-800-444-3353.SKU 67434
General Safety Warnings
WARNING Read all safety
warnings and instructions.
Failure to follow the warnings and
instructions may result in electric
shock, re and/or serious injury.
Save all warnings and
instructions for future reference.
The term ″power tool″ in the
warnings refers to your battery-
operated (cordless) power tool.
Work area safety1.
Keep work area clean and wella.
lit. Cluttered or dark areas invite
accidents.
Do not operate power tools inb.
explosive atmospheres, such
as in the presence of ammable
liquids, gases or dust. Power tools
create sparks which may ignite the
dust or fumes.
Keep children and bystandersc.
away while operating a power
tool. Distractions can cause you to
lose control.
Electrical safety2.
Avoid body contact with groundeda.
surfaces such as pipes, radiators,
ranges and refrigerators. There is
an increased risk of electric shock if
your body is grounded.
Do not expose power tools to rainb.
or wet conditions. Water entering
a power tool will increase the risk of
electric shock.
Personal safety3.
Stay alert, watch what you area.
doing and use common sense
when operating a power tool. Do
not use a power tool while you
are tired or under the inuence
of drugs, alcohol or medication.
A moment of inattention while
operating power tools may result in
serious personal injury.
Use personal protectiveb.
equipment. Always wear ANSI-
approved 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.
Prevent unintentional starting.c.
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 nger
on the switch or energizing power
tools that have the switch on invites
accidents.
Do not overreach. Keep properd.
footing and balance at all times.
This enables better control of the
power tool in unexpected situations.
Dress properly. Do not weare.
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.
Only use safety equipmentf.
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
specic hazards in the work area.

Page 4 For technical questions, please call 1-800-444-3353. SKU 67434
Power tool use and care4.
Do not force the power tool. Usea.
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.
Do not use the power tool if theb.
switch does not turn it on and
off. Any power tool that cannot
be controlled with the switch is
dangerous and must be repaired.
Store idle power tools out ofc.
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.
Maintain power tools. Checkd.
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.
Keep cutting tools sharp ande.
clean. Properly maintained cutting
tools with sharp cutting edges are
less likely to bind and are easier to
control.
Use the power tool, accessoriesf.
and tool bits etc. in accordance
with these instructions, taking
into account the working
conditions and the work to be
performed. Use of the power tool
for operations different from those
intended could result in a hazardous
situation.
Service5.
Have your power tool serviced bya.
a qualied repair person using
only identical replacement parts.
This will ensure that the safety of the
power tool is maintained.
Specic Safety Warnings
Maintain labels and nameplates on1.
the tool. These carry important safety
information. If unreadable or missing,
contact Harbor Freight Tools for a
replacement.
Avoid unintentional starting. Prepare2.
to begin work before turning on the
tool.
Do not lay the tool down until it has3.
come to a complete stop. Moving
parts can grab the surface and pull
the tool out of your control.
Do not leave the tool unattended4.
when the Battery Pack (sold
separately) is attached. Turn off the
tool, and remove the Battery Pack
before leaving.
Read and adhere to the instruction5.
manual of the Battery Charger
(67104) (sold separately) for
important safety warnings and
instructions on how to properly
operate the Lithium Battery Charger.
Do not use this Power Cutter with any6.
other Battery or Charger.
CAUTION: Avoid accidental injury.7.
Keep hands and ngers safely away
from the Blades.
This product is not a toy. Keep it out8.
of reach of children.

Page 5For technical questions, please call 1-800-444-3353.SKU 67434
People with pacemakers should9.
consult their physician(s) before
use. Electromagnetic elds in close
proximity to heart pacemaker could
cause pacemaker interference or
pacemaker failure. In addition,
people with pacemakers should:
• Avoid operating alone.
• Do not use with power switch locked
on.
• Properly maintain and inspect to
avoid electrical shock.
WARNING: Some dust created by10.
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:
• 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 lter out microscopic
particles. (California Health & Safety
Code § 25249.5, et seq.)
The warnings, precautions,11.
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:
Anyone using vibrating tools regularly1.
or for an extended period should
rst 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 ngers),
seek medical advice as soon as
possible.
Do not smoke during use. Nicotine2.
reduces the blood supply to the
hands and ngers, increasing the risk
of vibration-related injury.
Wear suitable gloves to reduce the3.
vibration effects on the user.
Use tools with the lowest vibration4.
when there is a choice.
Include vibration-free periods each5.
day of work.
Grip tool as lightly as possible (while6.
still keeping safe control of it). Let
the tool do the work.

Page 6 For technical questions, please call 1-800-444-3353. SKU 67434
To reduce vibration, maintain the tool7.
as explained in this manual. If any
abnormal vibration occurs, stop use
immediately.
Extension Cords
Note: Extension cords must not be used
with this item’s charger.
SAVE THESE
INSTRUCTIONS.

Page 7For technical questions, please call 1-800-444-3353.SKU 67434
SPECIFICATIONS
Power
Requirement 12 V Li-Ion Battery Pack
Cutting Capacity Up to 1/8” (3mm) thickness of
soft, non-metal materials.
Accessories
(sold separately)
Battery Pack (SKU 67120)
Battery Charger (SKU 67104)
UNPACKING
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.
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
Figure 1
Trigger (29)
ON
OFF
Power Switch (24)
Insert
Battery
Pack
here
Blades (6/8)
Release
Tabs
(2/9)
Work Piece and Work Area Set Up
Designate a work area that is clean1.
and well-lit. The work area must not
allow access by children or pets to
prevent distraction and injury.
Once Battery Pack is fully charged,2.
slide Pack into back of housing.
General Operating Instructions
This Power Cutter is for use on
materials up to 1/8” (3mm) thick
including soft materials such as
clamshell, linoleum, carpet or
cardboard. Not for use on soft metals.
CAUTION: This is not a toy and not for
use by children.
CAUTION: ALWAYS make sure the Power
Switch (24) is turned OFF when not
in use so that the tool cannot start
unintentionally.
Check that the Power Switch (24) is1.
in the Off position before installing the
Battery Pack. Once the Battery Pack
is fully charged, slide it into the back
of the housing.
Keeping away from the Trigger, slide2.
the Power Switch on to activate.
Squeeze and hold the Trigger to3.
activate the Blades.
Guide the Blades into the material to4.
cut.
Do not apply excessive pressure on5.
the tool. Allow the tool to do the work.
When nished, release the Trigger 6.
and slide the Power Switch off.
Remove the Battery Pack, allow to7.
cool, then place in Charger, making
sure Charger is out of reach of
children. Clean Cutter, then store
indoors out of children’s reach.

Page 8 For technical questions, please call 1-800-444-3353. SKU 67434
MAINTENANCE AND
SERVICING
Procedures not specically
explained in this manual
must be performed only by a
qualied technician.
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION:
Turn the Power Switch of the
tool off and remove the
Battery Pack 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,1. inspect the
general condition of the tool. Check
for loose hardware, misalignment or
binding of moving parts, cracked or
broken parts, and any other condition
that may affect its safe operation.
AFTER USE,2. wipe external surfaces
of the tool with a clean cloth.
Periodically lubricate the contact area3.
between the Reciprocating Lever (14)
and the ball section of the Moving
Blade (6) with white lithium grease.
To access the junction, squeeze the
Release Tabs (2/9) on either side of
the housing near the Blades (see
Figure 1) and pull the Cutter Head off
of the tool.
When the Blades become dull or4.
damaged they can be replaced.
To replace the Blades, remove
the Cutter Head from the tool as
described in step 3 above. Replace
with a new Cutter Head Assembly.
5. WARNING! Do not use if either
the Battery Pack or Charger are
damaged in any way.
BATTERY MUST BE RECYCLED OR
DISPOSED OF PROPERLY. Do not
short, incinerate or open battery.

Page 9For technical questions, please call 1-800-444-3353.SKU 67434
Troubleshooting
Problem Possible Causes Likely Solutions
Tool will not start. Battery Pack not properly seated.1.
Battery Pack needs charging.2.
Connection to Battery pack3.
damaged.
Check that Battery Pack is fully inserted4.
into tool so that it snaps into place.
Charge Battery Pack.1.
Check that the terminals inside the tool2.
are not bent or missing. Have repaired by
a qualied technician if needed.
Tool operates slowly. Battery Pack needs charging.1.
Job is for a more powerful tool.2.
Charge Battery Pack.1.
Use a stronger powered tool.2.
Performance
decreases over time.
Blades dull or damaged. Keep cutting accessories sharp. Replace
as needed.
Excessive noise or
rattling.
Internal damage or wear. (Bearings,
for example.)
Have technician service tool.
Overheating. Forcing tool to work too fast.1.
Blocked motor housing vents.2.
Allow tool to work at its own rate.1.
Wear ANSI-approved safety goggles and2.
NIOSH-approved dust mask/respirator
while blowing dust out of motor using
compressed air.
Follow all safety precautions whenever diagnosing or servicing the
tool. Disconnect power supply before service.

Page 10 For technical questions, please call 1-800-444-3353. SKU 67434
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.
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 11For technical questions, please call 1-800-444-3353.SKU 67434
Part Description Qty
1 Left Blade Cover 1
2 Left Release Tab 1
3 Spring Washer 2
4 Tapping Screw 2
5Spring 2
6Moving Blade 1
7Pin 1
8 Fixed Blade 1
9 Right Release Tab 1
10 Right Blade Cover 1
11 Tapping Screw 4
12 Tapping Screw 5
13 Right Housing 1
14 Reciprocative Lever 1
15 Sliding Support 2
Part Description Qty
16 Sliding Block 1
17 Pan Head Screw 2
18 Spring Washer 2
19 Locating Plate 1
20 Cam Pin 1
21 Decorated Board 1
22 Motor 1
23 Black Line 1
24 Power Switch 1
25 Rod 2
26 Link Film Support 1
27 Protecting Sheet 1
28 Red Line 1
29 Trigger 1
30 Left Housing 1
PARTS LIST & ASSEMBLY DIAGRAM
Part Description Qty
1A Cutter Head Assembly 1
1A

Page 12 For technical questions, please call 1-800-444-3353. SKU 67434
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 veries 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 specic 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 • [phone]