Chicago Electric 67616 Original instruction manual

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ITEM 67616
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Copyright©2012 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.
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.
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.
Owner’s Manual & Safety Instructions

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Table of Contents
Safety ......................................................... 2
Specifications ............................................. 8
Setup .......................................................... 8
Operation.................................................... 9
Maintenance.............................................. 12
Parts List and Diagram.............................. 14
Warranty .................................................... 16
WARNING SYMBOLS AND DEFINITIONS
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.
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses practices not related to personal injury.
IMPORTANT SAFETY INFORMATION
General Power Tool Safety Warnings
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 instructions for future reference.
The term ″power tool″ in the warnings refers to your mains-operated (corded) power tool.
Work area safety
1. Keep work area clean and well lit.
Cluttered or dark areas invite accidents.
2. Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases or dust. Power tools
create sparks which may ignite the dust or fumes.
3. Keep children and bystanders
away while operating a power tool.
Distractions can cause you to lose control.
SAFETY OPERATION MAINTENANCESETUP

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Electrical safety
1. Power tool plugs must match the outlet.
Never modify the plug in any way.
Do not use any adapter plugs with grounded
power tools. Unmodified plugs and matching
outlets will reduce risk of electric shock.
2. Avoid body contact with grounded surfaces
such as pipes, radiators, ranges and
refrigerators. There is an increased risk of
electric shock if your body is grounded.
3. Do not expose power tools to rain or wet
conditions. Water entering a power tool
will increase the risk of electric shock.
4. Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges
or moving parts. Damaged or entangled
cords increase the risk of electric shock.
5. When operating a power tool outdoors,
use an extension cord suitable for
outdoor use. Use of a cord suitable for outdoor
use reduces the risk of electric shock.
6. If operating a power tool in a damp location
is unavoidable, use a Ground Fault Circuit
Interrupter (GFCI) protected supply.
Use of a GFCI reduces the risk of electric shock.
Personal safety
1. Stay alert, watch what you are doing and use
common sense when operating a power tool.
Do not use a power tool while you are tired
or under the influence of drugs, alcohol or
medication. A moment of inattention while operating
power tools may result in serious personal injury.
2. Use personal protective 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.
3. Prevent unintentional starting. Ensure the switch
is in the off-position before connecting to
power source, 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.
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.
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.
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.
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.
SAFETYOPERATIONMAINTENANCE SETUP

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Power tool use and care
1. Do not force the power tool. Use the
correct power tool for your application.
The correct power tool will do the job better and
safer at the rate for which it was designed.
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.
3. Disconnect the plug from the power source
before making any adjustments, changing
accessories, or storing power tools.
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.
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.
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.
7. Use the power tool, accessories 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.
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.
Hammer Drill Safety Warnings
1. Wear ear protectors with hammer drill.
Exposure to noise can cause hearing loss.
2. Use auxiliary handles supplied with the tool.
Loss of control can cause personal injury.
3. Hold power tools 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 make exposed metal
parts of the tool ″live″ and shock the operator.
4. Let bit cool before touching, changing
or adjusting it. Bits heat up dramatically
while in use, and can burn you.
5. If the drill bit jams, release the
trigger immediately; drill torque
can cause injury or break bit.
6. Maintain labels and nameplates on the tool.
These carry important safety information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
7. Avoid unintentional starting.
Prepare to begin work before turning on the tool.
8. 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.
9. When using a handheld power tool,
maintain a firm grip on the tool with
both hands to resist starting torque.
10. 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.
11. This product is not a toy.
Keep it out of reach of children.
12. 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.
• 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.
SAFETY OPERATION MAINTENANCESETUP

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13. 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:
• 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.)
14. 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.)
15. 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:
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.
2. Do not smoke during use. Nicotine reduces
the blood supply to the hands and fingers,
increasing the risk of vibration-related injury.
3. Wear suitable gloves to reduce the
vibration effects on the user.
4. Use tools with the lowest vibration
when there is a choice.
5. Include vibration-free periods each day of work.
6. Grip tool as lightly as possible (while still keeping
safe control of it). Let the tool do the work.
7. To reduce vibration, maintain the tool as
explained in this manual. If any abnormal
vibration occurs, stop use immediately.
SAVE THESE INSTRUCTIONS.
Hammer Drill Safety Warnings (cont.)
SAFETYOPERATIONMAINTENANCE SETUP

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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. Never remove the grounding prong from
the plug. Do not use the tool if the power cord or plug is damaged. If damaged, have it repaired by a service
facility before use. If the plug will not fit the outlet, have a proper outlet installed by a qualified electrician.
Grounded Tools: Tools with Three Prong Plugs
3-Prong Plug and Outlet
1. Tools marked with “Grounding Required” have a three
wire cord and three prong grounding plug. The plug
must be connected to a properly grounded outlet.
If the tool should electrically malfunction or break
down, grounding provides a low resistance path to
carry electricity away from the user, reducing the risk
of electric shock. (See 3-Prong Plug and Outlet.)
2. The grounding prong in the plug is connected through
the green wire inside the cord to the grounding
system in the tool. The green wire in the cord must
be the only wire connected to the tool’s grounding
system and must never be attached to an electrically
“live” terminal. (See 3-Prong Plug and Outlet.)
3. The tool must be plugged into an appropriate outlet,
properly installed and grounded in accordance with
all codes and ordinances. The plug and outlet should
look like those in the preceding illustration.
(See 3-Prong Plug and Outlet.)
Double Insulated Tools: Tools with Two Prong Plugs
Outlets for 2-Prong Plug
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.)
SAFETY OPERATION MAINTENANCESETUP

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Extension Cords
1. Grounded tools require a three wire extension cord.
Double Insulated tools can use either
a two or three wire extension cord.
2. As the distance from the supply outlet increases,
you must use a heavier gauge extension cord.
Using extension cords with inadequately sized
wire causes a serious drop in voltage, resulting
in loss of power and possible tool damage.
(See Table A on page 7.)
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.)
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.)
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.
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.
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)
NAMEPLATE
AMPERES
(at full load)
EXTENSION CORD
LENGTH
25´ 50´ 75´ 100´ 150´
0 – 2.0 18 18 18 18 16
2.1 – 3.4 18 18 18 16 14
3.5 – 5.0 18 18 16 14 12
5.1 – 7.0 18 16 14 12 12
7.1 – 12.0 18 14 12 10 -
12.1 – 16.0 14 12 10 - -
16.1 – 20.0 12 10 - - -
* Based on limiting the line voltage drop to five volts at
150% of the rated amperes.
Symbology
Double Insulated
Canadian Standards Association
Underwriters Laboratories, Inc.
V~ Volts Alternating Current
AAmperes
n0xxxx/min. No Load Revolutions per Minute (RPM)
WARNING marking concerning Risk
of Eye Injury. Wear ANSI-approved
safety goggles with side shields.
Read the manual before
set-up and/or use.
WARNING marking concerning
Risk of Hearing Loss.
Wear hearing protection.
WARNING marking
concerning Risk of Fire.
Do not cover ventilation ducts.
Keep flammable objects away.
WARNING marking concerning
Risk of Electric Shock.
Properly connect power cord
to appropriate outlet.
SAFETYOPERATIONMAINTENANCE SETUP

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Specifications
Electrical Rating 120V~ / 60Hz / 6.5A
Rotational Speed 0-2500 RPM
Impact Rate 0-41,600 BPM
Chuck Capacity 3/64" to 1/2"
Wood Capacity 1" (25mm)
Concrete Capacity 5/8" (16mm)
Steel Capacity 1/2" (13mm)
E194601
39LH
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.
Note: For additional information regarding the parts listed in the following
pages, refer to Parts List and Diagram on page 14.
Functions
Figure A
Depth Gauge Mode Switch
Forward/
Reverse
Switch
Trigger
Lock
Button
Auxiliary
Handle
Chuck
SAFETY OPERATION MAINTENANCESETUP

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Operating Instructions
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this
manual including all text under subheadings therein before set up or use of this product.
Tool Set Up
TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION:
Release the Trigger and unplug the tool from its electrical outlet
before adjusting the tool or installing accessories.
Installing Auxiliary Handle
Figure B
Hex Bolt (3) Depth Gauge (1)
Gear Box (11)
Clamping Band (2)
Chuck (7)
Auxiliary
Handle (4)
1. Insert Clamping Band (2) over gear housing behind
Chuck (7) with required handle orientation. Slightly
rotating Clamping Band will enable the two tabs
on housing to align with recesses around clamp
face. Pull clamp tightly against housing and turn
Auxiliary Handle (4) to tighten clamp. See Figure 1.
2. Depending on whether left or right-handed use
is needed, turn the Clamping Band around until
the Auxiliary Handle (4) is on the correct side.
3. Securely tighten the Hex Bolt (3) until Auxiliary
Handle is fastened securely onto Drill.
Inserting Drill Bit
The Hammer Drill is equipped with a keyed
Chuck. Follow these steps to insert bit:
1. Insert the Chuck Key (52) into the Chuck and turn
counterclockwise to open the mouth of the Chuck.
2. Insert the hammer bit or the drill bit (not
included) all the way into the Chuck.
3. Turn the Chuck Key clockwise to tighten the Chuck
on the bit. When not in use, the Chuck can be
stored in the holder on the Key Sleeve (51).
SAFETYOPERATIONMAINTENANCE SETUP

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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 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.
3. Secure loose work pieces using a vise or clamps
(not included) to prevent movement while working.
4. There must not be objects, such as utility lines,
nearby that will present a hazard while working.
General Operating Instructions
1. Plug Power Cord (53) into working outlet.
2. Slide the Forward/Reverse Switch (54) to the correct
position for the current job. For drilling (clockwise
rotation), slide the Switch to the right. To rotate
Chuck in a counterclockwise direction, slide the
Forward/Reverse Switch to the left. See Figure 2.
3.
Figure 2
Forward/Reverse
Switch (54)
Trigger (55)
Lock Button (56)
Forward/Reverse
Switch positioned to
this side indicates
“reverse” bit rotation
Verify bit is securely locked in Chuck.
4. Press Trigger (55) to activate. To increase
variable drilling speed, continue pressing
down on Trigger (55). Decreasing pressure
on Trigger will slow the drilling speed.
5. WARNING! Use both hands during use.
6. For controlled depth drilling, loosen Auxiliary
Handle and slide Depth Gauge into gauge slot
and re-tighten Handle. The Depth Gauge has
two sets of markings on opposite faces of the
gauge. One is in half inch increments and the
other in 10 mm increments (increments are
not precise values, only general guides).
7. NOTE: Depth Gauge length may not
be adequate for all drill bits used.
8. Insert bit and tighten the chuck. Loosen Auxiliary
Handle, place tip of bit against a solid, hard
surface and extend Gauge until against same
surface. Determine required hole-depth and retract
Gauge accordingly. Tighten Auxiliary Handle.
9. To switch between plain drilling and hammering
mode (drilling with an oscillating hammer motion),
slide the Mode Switch (21) to left or right. The “drill”
symbol indicates plain drilling while the “hammer”
symbol indicates hammer drilling. See Figure 3.
10.
Figure 3
Mode Switch
(21)
(Top View)
Drill symbol
Hammer symbol
After pressing Trigger, press Lock Button (56)
to keep drill running without keeping finger on
Trigger. Press Trigger again to unlock.
11. WARNING! Use this function ONLY when
drilling soft materials. Do not drill or hammer
drill hard, brittle materials such as steel or
concrete with Lock Button pressed (ON). If drill
bit catches on material, the high torque will cause
the tool to twist around without stopping. This
violent action could cause injury to your hands and
arms. It could also damage the Hammer Drill.
12. 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.
SAFETY OPERATION MAINTENANCESETUP

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Metal Drilling Tips
1. Use high speed steel, carbide or
specialty bits for metal drilling.
2. Secure work piece to keep it from moving
during the drilling operation.
3. Use a punch (not included) to create
a dimple for the bit to start.
4. Start by drilling slowly to keep bit from
wandering away from your starting point.
5. As hole is established, increase speed. Do not
use so much pressure that bit heats up. This
can damage bit and create irregular hole. For
hard metal, use cutting oil to keep bit cool.
6. When drilling large holes in metal, start
by drilling a smaller pilot hole, then using
a larger bit for the final size hole.
Wood Drilling Tips
1. Use high speed bits or bits specially
designed for wood drilling, such as brad
point, spade bits, forstner bits, etc.
2. Secure work piece to keep it from moving
during the drilling operation.
3. Start by drilling slowly to keep bit from
wandering away from starting point.
Increase speed as hole is established.
4. To prevent or reduce “break out” when bit
penetrates work piece, clamp a piece of
scrap material to back of work piece.
5. Do not lock Trigger in the ON position,
as the bit can easily jam in wood and
motor must be stopped quickly.
Concrete Drilling Tips
1. Use carbide or specialty bits for concrete drilling.
2. Rock and masonry are generally drilled in
the hammer (impact) drilling mode.
3. When drilling in walls, start with regular drilling and,
once tile is pierced, continue with hammer mode.
NOTE: In deep bore holes, occasionally pull
the drill bit out to remove dust and chips.
Recommended Drill Bit Sets
The chart below lists applicable Drill Bit sets that are available from Harbor Freight Tools.
SKU Name Drilling
Application Sizes
32925 29-Piece High Speed Steel Drill Bit Set Metal 1/16" to 1/2" by 64ths
40547 20-Piece 1/8" Shank Diamond Point Set Metal 1-3/4" overall length
90029 5-Piece 18" Extra-Long M2 High Steel
Drill Bit Set Metal 1/8", 3/16", 1/4", 5/16" and 3/8" straight shank bits
1637 7-Piece Brad Point Wood Bit Set Wood 3" to 6" Length; Sizes: 1/8", 3/16", 1/4", 5/16", 3/8",
7/16", and 1/2" bits
33449 3-Piece 25" Long Wood Bit Set Wood 5/16", 3/8", 7/16"
35837 29-Piece Brad Point Wood Drill Bit Set Wood Length: 12"; Sizes: 1/16" through 1/2" by 64ths
42256 5-Piece Quick Change Masonry Drill Bits Concrete/Masonry 5/32", 3/16", 1/4", 5/16" and 3/8"
46754 5-Piece 12" SDS Masonry Bit Set Concrete/Masonry 5/16", 3/8", 1/2", 3/4", and 1"
46755 5-Piece 16" SDS Masonry Bit Set Concrete/Masonry 5/16", 3/8", 1/2", 3/4", 1"
SAFETYOPERATIONMAINTENANCE SETUP

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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:
Release the Trigger 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 hardware,
• misalignment or binding of moving parts,
• cracked or broken parts,
• damaged electrical wiring, and
• any other condition that may
affect its safe operation.
2. AFTER USE, wipe external surfaces
of the tool with clean cloth.
3. PERIODICALLY, and after each prolonged
and extensive application, blow compressed
air the motor housing slots to remove
any accumulated dirt and debris.
4. WARNING! If the supply cord of this
power tool is damaged, it must be replaced
only by a qualified service technician.
SAFETY OPERATION MAINTENANCESETUP

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Troubleshooting
Problem Possible Causes Likely Solutions
Tool will not start. 1. Cord not connected.
2. No power at outlet.
3. Tool’s thermal reset breaker
tripped (if equipped).
4. Internal damage or wear.
(Carbon brushes or
switch, for example.)
1. Check that cord is plugged in.
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. Turn off tool and allow to cool.
Press reset button on tool.
4. Have technician service tool.
Tool operates slowly. Extension cord too long or
cord diameter too small.
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 on page 6.
Performance
decreases over time.
1. Accessory dull or damaged.
2. Carbon brushes worn
or damaged.
1. Keep cutting accessories sharp. Replace as needed.
2. Have qualified technician replace brushes.
Excessive noise
or rattling.
Internal damage or wear. (Carbon
brushes or bearings, for example.)
Have technician service tool.
Overheating. 1. Forcing tool to work too fast.
2. Accessory misaligned.
3. Accessory dull or damaged.
4. Blocked motor housing vents.
5. Motor being strained by long or
small diameter extension cord.
1. Allow tool to work at its own rate.
2. Check and correct accessory alignment.
3. Keep cutting accessories sharp. Replace as needed.
4. Wear ANSI-approved safety goggles and
NIOSH-approved dust mask/respirator while
blowing dust out of motor using compressed air.
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 on page 6.
Follow all safety precautions whenever diagnosing or servicing the tool. Disconnect power
supply before service.
SAFETYOPERATIONMAINTENANCE SETUP

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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
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.
Part Description Qty
1 Depth Gauge 1
2 Clamping Band 1
3 Hex Bolt (M8x110) 1
4 Auxiliary Handle 1
5 Hex Nut (M8) 1
6 Left Head Screw (M6x22) 1
7 Drill Chuck 1
8 Spindle 1
9 Tapping Screw (ST4x22) 4
10 Spring (Ø18.2x9) 1
11 Gear Box 1
12 Flat Washer (Ø29) 2
13 Felt Ring (Ø29xØ18x7.4) 1
14 Bearing Bush 1
15 Ball Bearing (6002.2RS) 1
16 Circlip For Hole (Ø32) 1
17 Circlip For Shaft (Ø15) 1
18 Key (3x3.7x10) 1
19 Gear 1
20 Circlip For Shaft (Ø10) 1
21 Mode Switch 1
22 Mode Switch Support 1
23 Mode Washer 1
24 Tapping Screw (ST4x12F) 1
25 Gear Box Cover 1
26 Needle Bearing (HK081210) 1
27 Impact Block 1
Part Description Qty
28 Flat Washer (Ø4) 3
29 Spring Washer (Ø4) 3
30 Screw (M4x14) 2
31 Screw (M4x12) 1
32 Ball Bearing (608.2RS) 1
33 Circlip For Hole (Ø22) 1
34 Armature 1
35 Ball Bearing (608.2z) 1
36 Bushing 1
37 Label 1
38 Housing Support 1
39 Tapping Screw (ST4x18F) 6
40 Stator 1
41 Rubber Pin 1
42 Switch 1
43 Carbon Brush, Brush Holder 2
47 Label 1
48 Housing Cover 1
49 Tapping Screw (ST4x14C) 2
50 Cord Clamp 1
51 Key Sleeve 1
52 Chuck Key 1
53 Power Cord 1
54 Forward/Reverse Switch 1
55 Trigger 1
56 Lock Button 1
SAFETY OPERATION MAINTENANCESETUP

Page 15For technical questions, please call 1-800-444-3353.Item 67616
Assembly Diagram
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SAFETYOPERATIONMAINTENANCE SETUP

3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • [phone]
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.