Chicago Electric 90672 Manuel utilisateur

3491 Mission Oaks Blvd., Camarillo, CA 93011

Visit our Web site at http//www.harborfreight.com

this manual or any artwork contained herein may be reproduced in any shape

or form without the express written consent of Harbor Freight Tools.

For technical questions, please call 1-800-444-3353.

IMPACT WRENCH - 12 VOLT

MODEL 90672

ASSEMBLY AND OPERATING INSTRUCTIONS

90672.p65 11/20/03, 11:13 AM1

PRODUCT SPECIFICATIONS

SAVE THIS MANUAL

You will need this manual for the safety warnings and precautions, as-

sembly, operating, inspection, maintenance and cleaning procedures, parts

list and assembly diagram. Keep your invoice with this manual. Write the

invoice number on the inside of the front cover. Keep this manual and

invoice in a safe and dry place for future reference.

GENERAL SAFETY WARNINGS AND PRECAUTIONS

1. Maintain labels and nameplates on this product. These carry

important information. If unreadable or missing, contact Harbor

Freight Tools for a replacement.

2. Keep work area clean and dry. Cluttered, damp, or wet work areas

invite injuries.

3. Keep children away from work area. Do not allow children to

handle this product.

4. Store idle equipment. When not in use, tools and equipment should

be stored in a dry location to inhibit rust. Always lock up tools and

equipment, and keep out of reach of children.

SKU 90672 PAGE 2

Item Description

Electrical Requirements 12 Volt DC / 4.5 Amps

Torque Capacity 315 Ft./Lbs. (Clockwise)

325 Ft./Lbs. (Counterclockwise)

Drive Socket Sizes 6 Point x 1/2”

(7/8”, 13/16”, 3/4”, 11/16”)

Features Cord/Plug For Cigarette Lighter Receptacle

Cord/Clamps For Battery Terminal

Built-In LED Light For Night Use

Overall Size 9-1/2” L x 3-1/4” W x 7-7/8” H

Weight 5.00 Pounds

90672.p65 11/20/03, 11:13 AM2

5. Do not use this product if under the influence of alcohol or

drugs. Read warning labels on prescriptions to determine if your

judgement or reflexes are impaired while taking drugs. If there is

any doubt, do not attempt to use this product.

6. Use eye protection. Wear ANSI approved safety impact eye

goggles when using this product. ANSI approved safety impact eye

goggles are available from Harbor Freight Tools.

7. Dress safely. Do not wear loose clothing or jewelry, as they can

become caught in moving parts. Wear a protective hair covering to

prevent long hair from becoming caught in moving parts.

8. Do not overreach. Keep proper footing and balance at all times to

prevent tripping, falling, back injury, etc.

9. Industrial applications must follow OSHA requirements.

10. Stay alert. Watch what you are doing at all times. Use common

sense. Do not use this product when you are tired or distracted from

the job at hand.

11. Check for damaged parts. Before using this product, carefully

check that it will operate properly and perform its intended function.

Check for damaged parts and any other conditions that may affect

the operation of this product. Replace or repair damaged or worn

parts immediately.

12. Replacement parts and accessories: When servicing, use only

identical replacement parts. Only use accessories intended for use

with this product. Approved accessories are available from Harbor

Freight Tools.

13. Maintain this product with care. Keep this product clean and dry

for better and safer performance. For your safety, service and

maintenance should be performed regularly by a qualified technician.

14. Use the right tool for the job. Do not attempt to force a small tool

to do the work of a larger industrial tool. There are certain applica-

tions for which this tool was designed. It will do the job better and

more safely at the capacity for which it was intended. Do not modify

this tool, and do not use this tool for a purpose for which it was not

intended.

15. Maintain a safe working environment. Keep the work area well lit.

Make sure there is adequate surrounding work space. Always keep

the area free of obstructions, grease, oil, trash, and other debris.

SKU 90672 PAGE 3

90672.p65 11/20/03, 11:13 AM3

16. Always disconnect the Impact Wrench from its electrical supply

source before changing Sockets or performing any maintenance

on the tool.

17. The Impact Wrench is designed for use with a 12 volt DC system

only. Do not attempt to use any other type of electrical system.

18. To avoid overheating the tool’s Motor (15) do not use the Impact

Wrench continuously for over 8 minutes.

19. Prior to performing maintenance or repair on a vehicle, make

sure to read and understand all instructions and safety precau-

tions as outlined in the vehicle manufacturer’s owner’s manual.

20. This Impact Wrench is designed for emergency purposes only.

For non-emergency purposes, use an industrial/commercial class

Impact Wrench.

21. In the event of an emergency, move the vehicle a safe distance

from the roadside and away from all other traffic. Park the

vehicle on dry, flat, level, ground. Turn off the vehicle, and set

the emergency brake before attempting to change a flat tire.

22. Avoid accidental electrical shock. Keep the Impact Wrench dry at

all times.

23. Avoid eye injuries. Always wear ANSI approved safety impact eye

goggles when working with a vehicle battery which under certain

circumstances can explode, causing possible serious burns and

injuries to the eyes.

24. Avoid contact with battery acid. If splashed, immediately wash

affected area with clean water. Continue washing until medical help

is available.

25. Avoid working alone. If an accident occurs, an assistant can bring

help.

26. When using a power hand tool, always grasp the tool firmly with

both hands to maintain control of the tool.

27. WARNING! People with pacemakers should consult their

physician(s) before using this product. Operation of electrical tools in

close proximity to a heart pacemaker could cause interference or

failure of the pacemaker.

28. WARNING! The warnings, precautions, and instructions discussed

in this manual cannot cover all possible conditions and situations that

may occur. The operator must understand that common sense and

caution are factors, which cannot be built into this product, but must

be supplied by the operator.

SKU 90672 PAGE 4

90672.p65 11/20/03, 11:13 AM4

OPERATING INSTRUCTIONS

NOTE: For additional references to the parts listed on the following pages,

refer to the Assembly Diagram (page 9).

1. Make sure the vehicle is parked safely away from all other moving

traffic. Park the vehicle on a dry, flat, level, ground surface. Turn off

the vehicle, and set the vehicle’s emergency brake.

2. Select the appropriate size Socket (23, 24, 25, or 26) with which to

remove the Lug Nuts on the vehicle’s wheel. Then, attach the Socket

to the Impact Wrench. (See Figure A.)

UNPACKING

When unpacking, check to make sure all the parts shown on the Parts List

(page 9) are included. 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.

Function Note that this 12 volt Impact Wrench operates differently than 115

volt or air impart wrenches. The motor will run to build inertia, then will strike a

blow of the hammer. This is repeated, becoming more rapid with decreased

resistance. This is normal operation for this product.

3. If the vehicle’s cigarette lighter fuse is below 15 amps, you will need

to use the vehicle’s battery as an electric power source, using the

Battery Clamps (27). To do so attach the Red positive (+) Clamp to

the positive (+) terminal on the vehicle’s battery. Then, attach the

Black negative (-) Clamp to the negative (-) terminal on the

vehicle’s battery then connect the Lead Wire Plug (19) to the Battery

Clamps. (See Figure B, next page.)

4. If the vehicle’s cigarette lighter fuse is above 15 amps, you may use

the vehicle’s cigarette lighter receptacle as an electric power source.

To do so, remove the cigarette lighter and insert the Lead Wire Plug

(19) firmly into the cigarette lighter receptacle. (See Figure C,

next page.)

FIGURE A

SOCKET

(23, 24, 25, 26)

TRIGGER

(1)

LED LIGHT

(18)

FORWARD/REVERSE

SWITCH (16)

SKU 90672 PAGE 5

90672.p65 11/20/03, 11:13 AM5

5. Remove the vehicle’s spare tire and set it aside.

6. Use the vehicle’s jack to raise the vehicle. CAUTION! Refer to the

vehicle manufacturer’s owner’s manual for instructions on using the

jack and to determine the proper lifting points on the vehicle. Always

chock the opposite wheel.

7. If necessary, remove the wheel’s hubcap to expose the wheel lug

nuts.

8. Make sure the Impact Wrench is off. Then, depress the Forward/

Reverse Switch (16) to its Reverse position (counterclockwise

rotation). (See Figure D, next page.)

BLACK NEGATIVE (-) CLAMP

TO NEGATIVE (-) BATTERY TERMINAL

RED POSITIVE (+) CLAMP

TO POSITIVE (+) BATTERY

TERMINAL

BATTERY CLAMPS (27)

LEAD

WIRE

PLUG (19)

FIGURE B

LEAD WIRE

PLUG (19)

CIGARETTE

LIGHTER

RECEPTACLE

FIGURE C

SKU 90672 PAGE 6

90672.p65 11/20/03, 11:13 AM6

SKU 90672 PAGE 7

13. Note: Check vehicle owner’s manual for tightening sequence. Insert

the Socket (23, 24, 25, 26) onto the first wheel lug nut and, while

maintaining a firm grip on the Impact Wrench with both hands,

squeeze the Trigger (1) until the wheel lug nut is firmly tightened onto

the wheel lug bolt. Release pressure on the Trigger to turn the

Impact Wrench off. Then, repeat this Step to tighten the remaining

wheel lug nuts onto the lug bolts. (See Figure D.)

14. Using the vehicle’s jack, slowly and carefully lower the vehicle.

15. If necessary, re-attach the vehicle’s hubcap to the wheel. Then, store

the vehicle’s jack and spare tire securely in the trunk of the vehicle.

16. If the vehicle’s battery was used to supply electricity to the Impact

Wrench, disconnect the Red and Black Battery Clamps (30) from the

battery. Disconnect the Lead Wire Plug (19) from the Battery

Clamps. Remove the Socket (23, 24, 25, 26) from the Impact

Wrench. Place the Impact Wrench and its accessories in the

Carrying Case. Then, store the Carrying Case securely in the

vehicle’s trunk. (See Figure B.)

REVERSE FORWARD

FORWARD/REVERSE

SWITCH (16)

FIGURE D

9. Insert the Socket (23, 24, 25, 26) onto the first wheel lug nut and,

while maintaining a firm grip on the Impact Wrench with both hands,

squeeze the Trigger (1) until the wheel lug nut is removed from the

wheel lug bolt. Release pressure on the Trigger to turn the Impact

Wrench off. Remove the wheel lug nut from the Socket and set the

lug nut aside. Then, repeat this Step to remove the remaining wheel

lug nuts.

10. Once all of the wheel lug nuts are removed, carefully remove the

vehicle’s flat tire and install the spare tire onto the wheel lug bolts.

11. Finger tighten each of the wheel lug nuts onto the wheel lug bolts.

12. Make sure the Impact Wrench is off. Then, depress the Forward/

Reverse Switch (16) to its Forward position (clockwise rotation).

(See Figure D.)

90672.p65 11/20/03, 11:13 AM7

SKU 90672 PAGE 8

INSPECTION, MAINTENANCE, AND CLEANING

1. Before each use, inspect the general condition of the Impact

Wrench. Check for loose connections, cracked, or broken parts,

excessively worn or damaged wiring, and any other condition that

may affect the safe and proper operation of the Impact Wrench. If a

problem occurs, have the problem corrected before further use. Do

not use damaged equipment.

2. When cleaning, use only water and a mild detergent. Do not

immerse the Impact Wrench in liquid. Do not use cleaners that are

combustible or corrosive.

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. NEI-

THER 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 MANUFACTUER AND/OR

DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACE-

MENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS,

AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARIS-

ING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACE-

MENT PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF

REPLACEMENT PARTS THERETO.

17. If the vehicle’s cigarette lighter receptacle was used to supply

electricity to the Impact Wrench, disconnect the Lead Wire Plug (19)

from the cigarette lighter receptacle. Insert the cigarette lighter back

into its receptacle. Remove the Socket (23, 24, 25, 26) from the

Impact Wrench. Place the Impact Wrench and its accessories in the

Carrying Case. Then, store the Carrying Case securely in the

vehicle’s trunk.

90672.p65 11/20/03, 11:13 AM8

NOTE: Some parts are listed and shown for illustration purposes only, and

are not available individually as replacement parts.

Part # Description Part # Description

1 Trigger 18 LED Light

2 Switch Return Spring 19 Lead Wire Plug

3 Housing (L) 20 Tapping Screw

4 Output Spindle Bearing 21 Housing (R)

5 Ball Bearing 22 Nameplate

6 Steel Ball 23 Socket (11/16”)

7 Output Spindle 24 Socket (3/4”)

8 Bearing 25 Socket (13/16”)

9 Shift Pin 26 Socket (7/8”)

10 Shift Spindle 27 Battery Clamps

11 Clutch Return Spring 28 Label

12 Clutch Return Steel Ball 29 Carrying Case

13 Shift Block

14 Bearing

15 Motor

16 Forward/Reverse Switch

17 Starting Switch

PARTS LIST AND ASSEMBLY DIAGRAM

SKU 90672 PAGE 9

90672.p65 11/20/03, 11:13 AM9

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