Chicago Electric 66127 Installation manual

19.2V 3/8” CORDLESS
DRILL/DRIVER
66127
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©2008 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.

SKU 66127 For technical questions, please call 1-800-444-3353. Page 2
SAVE THIS MANUAL
Keep this manual for the safety warn-
ings and precautions, assembly, operat-
ing, 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 provid-
ed 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.
General Power Tool 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 well lit.a.
Cluttered or dark areas invite acci-
dents.
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.
Do not expose power tools to raind.
or wet conditions. Water entering
a power tool will increase the risk of
electric shock.

SKU 66127 For technical questions, please call 1-800-444-3353. Page 3
Personal safety2.
Stay alert, watch what you are do-a.
ing 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 protective equip-b.
ment. Always wear eye protection.
Safety equipment such as dust mask,
non-skid safety shoes, hard hat, or
hearing protection used for appropri-
ate conditions will reduce personal
injuries.
Prevent unintentional starting.c.
Ensure the switch is in the off-
position before connecting 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 wear loosee.
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.
If devices are provided for the con-f.
nection of dust extraction and col-
lection facilities, ensure these are
connected and properly used. Use
of these devices can reduce dust-
related hazards.
Only use safety equipment thatg.
has been approved by an appropri-
ate standards agency. Unapproved
safety equipment may not provide
adequate protection. Eye protection
must be ANSI-approved and breath-
ing protection must be NIOSH-ap-
proved for the specic hazards in the
work area.
Power tool use and care3.
Do not force the power tool. Usea.
the correct power tool for your ap-
plication. 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 con-
trolled with the switch is dangerous
and must be repaired.
Disconnect the battery pack fromc.
the power tool before making any
adjustments, changing accesso-
ries, or storing power tools. Such
preventive safety measures reduce
the risk of starting the power tool ac-
cidentally.
Store idle power tools out of thed.
reach of children and do not allow
persons unfamiliar with the power
tool or these instructions to oper-
ate the power tool. Power tools are
dangerous in the hands of untrained
users.
Maintain power tools. Check fore.
misalignment or binding of moving
parts, breakage of parts and any
other condition that may affect the
power tool’s operation. If dam-
aged, have the power tool repaired
before use. Many accidents are
caused by poorly maintained power
tools.

SKU 66127 For technical questions, please call 1-800-444-3353. Page 4
Use the power tool and tool bitsf.
in accordance with these instruc-
tions, 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 haz-
ardous situation.
Battery tool use and care4.
Recharge only with the chargera.
specied by the manufacturer. A
charger that is suitable for one type of
battery pack may create a risk of re
when used with another battery pack.
Use power tools only with speci-b.
cally designated battery packs.
Use of any other battery packs may
create a risk of injury and re.
When battery pack is not in use,c.
keep it away from other metal ob-
jects, like paper clips, coins, keys,
nails, screws or other small metal
objects, that can make a connec-
tion from one terminal to another.
Shorting the battery terminals togeth-
er may cause burns or a re.
Under abusive conditions, liquidd.
may be ejected from the battery;
avoid contact. If contact acciden-
tally occurs, ush with water. If
liquid contacts eyes, additionally
seek medical help. Liquid ejected
from the battery may cause irritation
or burns.
Always switch to a fresh Batterye.
Pack when tool performance be-
gins to diminish. Severe heat is de-
structive to a Battery Pack. The more
heat generated, the faster the Battery
Pack loses power. A Battery Pack
that gets too hot can be permanently
damaged. Never over-discharge a
Battery Pack by using the tool while
tool performance is decreasing.
When tool performance begins to
diminish, stop the tool, recharge the
Battery Pack, and use the fresh Bat-
tery Pack for optimal performance.
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.
Drill Safety Warnings
Hold power tools by insulated grip-1.
ping surfaces when performing an
operation where the cutting tool
may contact hidden wiring or its
own cord. Contact with a ″live″ wire
will make exposed metal parts of the
tool ″live″ and shock the operator.
Maintain labels and nameplates on2.
the tool. These carry important safety
information. If unreadable or miss-
ing, contact Harbor Freight Tools for a
replacement.
Avoid unintentional starting. Prepare3.
to begin work before turning on the
tool.
Do not lay the tool down until it has4.
come to a complete stop. Moving
parts can grab the surface and pull
the tool out of your control.
When using a handheld power tool,5.

both hands to resist starting torque.
Do not leave the tool unattended6.
when it is plugged into an electrical
outlet. Turn off the tool, and unplug it
from its electrical outlet before leav-
ing.

SKU 66127 For technical questions, please call 1-800-444-3353. Page 5
7. The battery charger gets
hot during use. The
charger’s heat can build
up to unsafe levels and

receive adequate ventilation, due to
an electrical fault, or if it is used in a
hot environment.
-
mable surface. Do not obstruct any
vents on the charger. Especially
avoid placing the charger on car-
pets and rugs; they are not only
ammable, but they also obstruct
vents under the charger.
Place the charger on a stable, solid,

stable metal workbench or concrete



smoke detector in the area. Fre-
quently monitor the charger and
battery during use.
This product is not a toy. Keep it out8.
of reach of children.
People with pacemakers should9.
consult their physician(s) before use.
-
imity to heart pacemaker could cause
pacemaker interference or pacemak-
er failure. In addition, people with
pacemakers should:


on.

avoid electrical shock.

grounded. Ground Fault Circuit Inter-
rupter (GFCI) should also be imple-
mented – it prevents sustained elec-
trical shock.
Some dust created by power sand-10.
ing, sawing, grinding, drilling, and
other construction activities, contains
chemicals known [to the State of Cali-
fornia] to cause cancer, birth defects
or other reproductive harm. Some
examples of these chemicals are:

-
ment or other masonry products
-
cally treated lumber
Your risk from these exposures var-
ies, 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

particles. (California Health & Safety
Code § 25249.5, et seq.)
WARNING: Handling the cord on11.
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. (Califor-
nia Health & Safety Code § 25249.5,
et seq.)
The warnings, precautions, and in-12.
structions discussed in this instruction
manual cannot cover all possible con-
ditions 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. Re-
peated or long-term exposure to

SKU 66127 For technical questions, please call 1-800-444-3353. Page 6
vibration may cause temporary or

to the hands, arms and shoulders. To
reduce the risk of vibration-related

Anyone using vibrating tools regu-1.
larly or for an extended period should

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
-
vous system disorders, diabetes, or
Raynaud’s Disease should not use
this tool. If you feel any symptoms
related to vibration (such as tingling,

seek medical advice as soon as pos-
sible.
Do not smoke during use. Nico-2.
tine reduces the blood supply to the


Wear suitable gloves to reduce the3.
vibration effects on the user.
Use tools with the lowest vibration4.
when there is a choice between dif-
ferent processes.
Include vibration-free periods each5.
day of work.
Grip tool as lightly as possible (while6.

the tool do the work.
To reduce vibration, maintain the tool7.
as explained in this manual. If any
abnormal vibration occurs, stop use
immediately.
SAVE THESE
INSTRUCTIONS.

SKU 66127 For technical questions, please call 1-800-444-3353. Page 7
SPECIFICATIONS
Charger Input 
Power Output 19.2 VDC NiCd
Battery, 1.7 aH
Drill Speed 0 - 600 RPM
Forward/Reverse
Chuck Type 3/8” Keyless
Torque Settings 15 Standard Setting
+ One Drill Setting
Trigger Settings Forward/Reverse
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 the number shown on the
cover of this manual as soon as possible.
INSTRUCTIONS FOR
PUTTING INTO 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 Forward/Reverse
Switch of the tool to its center,
locked position and remove
the Battery 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.
Charging the Battery
The Battery Pack (15) must be1.

use. Do not charge the Battery Pack

Pack and/or Charger (21) may be
damaged. Do not leave the Charger
unattended while charging. Charge

Move the Forward/Reverse Switch of2.
the Drill to its center, locked position.
Push the Battery Release Button on3.
top of the Battery down, and slide the
Battery off the handle of the Drill.
Chuck (4) Torque
Selector
Level
(18)
Battery
Release
Button
Slide the Battery onto the Charger.4.
Plug the Charger into a grounded120
volt electrical outlet.
Verify that the charging indicator light5.
comes on. If it does not come on,
check the power cord connection.
Charge the Battery until the charging
indicator light turns off.
Note: While charging, the Battery and
Charger may become warm to the
touch. This is normal, and does not
indicate a problem.

SKU 66127 For technical questions, please call 1-800-444-3353. Page 8
Once the Battery is charged, discon-6.
nect the Charger from the electrical
outlet and the Charger from the Bat-
tery Pack. Connect the Battery to the
base of the Drill.
Installing a Drill Bit
Turn the Chuck (4) of the Drill coun-1.

wide enough to receive a 3/8” bit.
Place the bit of a driver or drill (not2.

Chuck clockwise until secure.
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.
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION:
Turn the Forward/Reverse
Switch of the tool to its center,
locked position and remove
the Battery before performing
any inspection, maintenance,
or cleaning procedures.
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

Secure loose work pieces using a2.
vise or clamps (not included) to pre-
vent movement while working.
-3.



4. Warning, to prevent serious
injury
hidden utility lines before drilling or
driving screws.
General Operating Instructions
Mark the position of the hole to be1.
drilled with a center punch to prevent
the Drill from “walking”.
Attach the Battery to the bottom of2.
the handle, it will click when it locks
into place.
Move the Forward/Reverse Switch to3.
the desired position.
Turn the Torque Selector to the cor-4.
rect torque setting. Do not change
the torque setting while the drill is
moving.
Pull the Trigger to start the Drill. Al-5.
low the drill to come up to full speed,
before, applying it to the work sur-
face.
6.
as torque will cause the tool to twist.
When drilling in light gauge metal or7.
wood, place a wooden block behind
the material to prevent damage to the

cutting oil when drilling iron or steel.
Use a coolant when drilling nonfer-
rous metals such as copper, brass, or
aluminum.
To drill holes parallel to the ground,8.
make sure the bubble stays between


SKU 66127 For technical questions, please call 1-800-444-3353. Page 9
To determine the battery charge level,9.
hold down the Battery Charge Indi-
cator. There are three lights (red,
yellow, green), if all three are lit the
battery is fully charged. If only the
red and yellow lights are illuminated,
the battery is partially charged. If
only the red light is illuminated, then
the battery will need to be charged
soon.
Level
Battery Charge
Indicator
When the hole is drilled, remove the10.
drill bit from the hole while the Drill is
still running. This prevents the Drill Bit
from getting caught in the hole and
causing damage.
To prevent accidents, turn off the tool11.
and disconnect its power supply after
use. Clean, then store the tool in-
doors out of children’s reach.

SKU 66127 For technical questions, please call 1-800-444-3353. Page 10
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 to its “OFF” position and
unplug the tool from its
electrical outlet before
performing any inspection,
maintenance, or cleaning
procedures.
TO PREVENT SERIOUS
INJURY FROM TOOL
FAILURE:
Do not use damaged
equipment. If abnormal noise
or vibration occurs, have the
problem corrected before
further use.
Cleaning, Maintenance, and
Lubrication
BEFORE EACH USE,1. inspect the
general condition of the tool. Check
for loose screws, misalignment or
binding of moving parts, cracked or
broken parts, damaged electrical wir-
ing, and any other condition that may
affect its safe operation.
AFTER USE,2. clean external surfaces
of the tool with clean cloth.
3. WARNING! If the supply cord of
this power tool is damaged, it must
be replaced only by a qualied
service technician.
PLEASE READ THE FOLLOWING
CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR



MANUFACTURER OR DISTRIBUTOR MAKES
ANY REPRESENTATION OR WARRANTY OF
ANY KIND TO THE BUYER THAT HE OR SHE



IN FACT, THE MANUFACTURER AND/OR











SKU 66127 For technical questions, please call 1-800-444-3353. Page 11
PARTS LIST
Part Description Qty
1 Screw 8
2 Right Body 1
3 Chuck Screw 1
4 Chuck 1
5 Gear Box & Motor Assembly 1
6 Capacitor 1
7 Handle Belt 1
8 Screw 1
9 Washer 1
10 VMOS 1
11 Cooling Plate 1
PARTS LIST
Part Description Qty
12 Connector 1
13 Trigger 1
14 Battery Clamp 1
15 Battery 1
16  1
17  1
18  1
19 Circuit Board 1
20 Screw 2
21 Charger 1
22 Case (not shown) 1
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 avail-
able individually as replacement parts.
ASSEMBLY DIAGRAM

SKU 66127 For technical questions, please call 1-800-444-3353. Page 12
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 prod-
uct 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.

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 EXPRESS-


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 com-
-
ther 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 re-
paired 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.

which vary from state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • [phone]