Milwaukee 9070-20, 9072-20, 9096-20, 9075-20, 9071-20 User Manual

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OPERATOR'S MANUAL MANUEL de L'UTILISATEUR MANUAL del OPERADOR

Cat. No.

No de cat.

9070-20 9071-20 9072-20 9072-22

9075-20 9092-20 9096-20

IMPACT WRENCH CLÉ À PERCUSSION LLAVE DE IMPACTO

TO REDUCE THE RISK OF INJURY, USER MUST READ OPERATOR'S MANUAL. AFIN DE RÉDUIRE LE RISQUE DE BLESSURES, L'UTILISATEUR DOIT LIRE LE MANUEL DE L'UTILISATEUR. PARA REDUCIR EL RIESGO DE LESIONES, EL USUARIO DEBE LEER EL MANUAL DEL OPERADOR.

GENERAL SAFETY RULES — FOR ALL POWER TOOLS

WARNING

Failure to follow all instructions listed below may result in electric shock, ﬁ re and/or serious injury. The term "power tool" in all of the warnings listed below refers to your mains-operated (corded) power tool or battery-opearted (cordless) power tool.

SAVE THESE INSTRUCTIONS

READ ALL INSTRUCTIONS

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 ﬂ ammable 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.

ELECTRICAL SAFETY

4. Power tool plugs must match the outlet. Never modify the plug in

any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodiﬁ ed plugs and matching outlets will reduce risk

of electric shock.

5. Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.

6. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.

7. 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.

8. When operating a power tool outdoors, use an extension cord suit- able for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.

PERSONAL SAFETY

9. 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 inﬂ uence of drugs, alcohol or medication. A moment

of inattention while operating power tools may result in serious personal injury.

10. Use safety equipment. Always wear eye protection. Safety equip- ment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.

11. Avoid accidental starting. Ensure the switch is in the off-position before plugging in. Carrying tools with your ﬁ nger on the switch or plugging in power tools that have the switch on invites accidents.

12. 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.

13. Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.

14. Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewellery, or long hair can be caught in moving parts.

15. 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.

16. 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.

17. 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.

18. Disconnect the plug from the power source and/or the battery pack

from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures

reduce the risk of starting the tool accidentally.

19. Store idle power tools out of the reach of children and do not al-

low persons unfamiliar with the power tools or these instructions to operate power tools. Power tools are dangerous in the hands of

untrained users.

20. 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.

21. Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.

22. Use the power tool, accessories and tool bits etc., in accordance

with these instructions and in the manner intended for the particular type of power tool, 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.

23. Have your power tool serviced by a qualiﬁ ed repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.

1. 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.

2. Maintain labels and nameplates. These carry important information. If unreadable or missing, contact a MILWAUKEE service facility for a free replacement.

3. WARNING! Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:

• lead from lead-based paint

• crystalline silica from bricks and cement and other masonry products, and

• arsenic and chromium from chemically-treated lumber.

Y our 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 ﬁ lter out microscopic particles.

POWER TOOL USE AND CARE

SERVICE

SPECIFIC SAFETY RULES

page 2

FUNCTIONAL DESCRIPTION

1. Drive shank

2. Forward/reverse switch (Cat. No. 9072-20, 9072-22, 9092-20, 9096-20)

3. Trigger (Cat. No. 9072-20, 9072-22, 9092-20, 9096-20) Rocker switch (Cat. No. 9070-20, 9071-20, 9075-20)

4. Speed control dial (Cat. No. 9072-20, 9072-22, 9092-20, 9096-20)

5. Quik-Lok® cord (Cat. No. 9072-20, 9072-22, 9092-20, 9096-20)

6. Quick change chuck (Cat. No. 9092-20, 9096-20)

7. Tool hanger (Cat. No. 9092-20, 9096-20)

8. Tool hanger ring (Cat. No. 9092-20, 9096-20)

Cat. No. 9072-20

9072-22

Cat. No. 9075-20

Symbology

Double Insulated

Volts Alternating Current/ Direct Current

Volts Alternating Current

Amperes Impacts per Minute

Under Load (IPM) Underwriters

Laboratories, Inc. Canadian

Standards Association Mexican Approvals

Marking

Cat. No. 9092-20

Speciﬁ cations

Cat.

No. 9070-20 9071-20 9072-20 9072-22 9075-20 9092-20 9096-20

Volts

120 AC/DC

120 AC/DC 120 AC Only 120 AC Only

7 7 7 7 7 7 7

No Load

RPM

1800

1800 600-1800 600-1800

1750 600-1800 600-1800

Drive

Shank

1/2" 1/2" 1/2" 1/2" 3/4"

7/16" Hex

5/8" Hex

Quick Change Chuck Capacities*

Cat. No. 9070-20 9072-20 9072-22 9092-20 9096-20

* Only for use with the 7/16" or 5/8" Hex Quick Change chuck, standard equiptment on the 9092-20 (7/16") and 9096-20 (5/8"), optional accessory (Cat. No. 48-66-0061) on other models.

Quick Change Auger Bits

1-1/2" 1-1/2" 1-1/2" 1-1/2" 1-1/2"

Selfeed Bits

Impacts Per

2-9/16" 2-9/16" 2-9/16" 2-9/16" 2-9/16"

Minute

2600

2600 1000-2600 1000-2600

2500 1000-2600 1000-2600

Average Torque

Output

300 ft-lbs.

300 ft-lbs. 100-300 100-300 ft-lbs.

100-315 ft-lbs. 100-315 ft-lbs.

ft-lbs.

380 ft-lbs.

page 3

GROUNDING EXTENSION CORDS

WARNING

Improperly connecting the grounding wire can result in the risk of electric shock. Check with a qualiﬁ ed electrician if you are in doubt as to whether the outlet is properly grounded. Do not modify the plug provided with the tool. Never remove the grounding prong from the plug. Do not use the tool if the cord or plug is damaged. If damaged, have it repaired by a MILWAUKEE service facility before use. If the plug will not ﬁ t the outlet, have a proper outlet installed by a qualiﬁ ed electrician.

Grounded tools require a three wire extension cord. Double insulated tools can use either a two or three wire extension cord. 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. Refer to the table shown to determine the required minimum wire size.

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. When using more than one extension cord to make up the total length, be sure each cord contains at least the minimum wire size required. 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 wire size.

Grounded Tools: Tools with Three Prong Plugs

Tools marked “Grounding Required” have a three wire cord and three prong grounding plug. The plug must be connected to a properly grounded outlet (See Figure A). 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.

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.

Y our 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 Figure A.

Double Insulated Tools: Tools with Two Prong Plugs

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. Double Insulated tools may be used in either of the 120 volt outlets shown in Figures B and C.

Fig. A

Fig. B

Fig. C

Guidelines for Using Extension Cords

• If you are using an extension cord outdoors, be sure it is marked with the sufﬁ x “W-A” (“W” in Canada) to indicate that it is acceptable for outdoor use.

• Be sure your extension cord is properly wired and in good electrical condition. Always replace a damaged extension cord or have it repaired by a qualiﬁ ed person before using it.

• Protect your extension cords from sharp objects, excessive heat and damp or wet areas.

Recommended Minimum Wire Gauge

Nameplate

Amperes

5.1 - 8

8.1 - 12

12.1 - 15

15.1 - 20

* Based on limiting the line voltage drop to ﬁ ve volts at 150% of the rated amperes.

for Extension Cords*

25'

0 - 5

16 16 14 12 10

Extension Cord Length

100'

14 12 10 10

150'

12 10

50'

16 16 14 12 10

75'

16 14 12 10 10

200'

READ AND SAVE ALL INSTRUCTIONS

FOR FUTURE USE.

page 4

TOOL ASSEMBLY

WARNING

To reduce the risk of injury, always unplug tool before attaching or removing accessories or making adjustments. Use only speciﬁ - cally recommended accessories. Others may be hazardous.

Removing and Replacing Quik-Lok® Cords (Fig. 1) Cat. No. 9072-20, 9072-22, 9092-20 and 9096-20

MILWAUKEE's exclusive Quik-Lok® Cords provide instant ﬁ eld replacement or substitution.

Fig. 1

1. T o remove the Quik-Lok® Cord, turn the cord nut 1/4 turn to the left and pull it out.

2. T o replace the Quik-Lok® Cord, align the connector keyways and push the connector in as far as it will go. Turn the cord nut 1/4 turn to the right to lock.

Attaching and Removing the Tool Hanger (Fig. 2) Cat. No. 9092-20, 9096-20, or as an accessory

Fig. 3

Drive shank

1. To attach a socket or other accessory, push the accessory onto the drive shank until it snaps into place.

2. To remove the accessory, pull it off the drive shank.

Attaching and Removing Accessories (Fig. 4) Cat. No. 9070-20, 907220, 9072-22

These impact wrenches are intended only for use with sockets designed for impact wrenches and that have a 1/2" square drive. Other sockets could shatter or break, causing injury.

Fig. 4

Fig. 2

Gear case screws

1. To attach, remove the two top gear case screws (Fig. 2).

2. Place the ring through the tool hanger.

3. Position the tool hanger on the tool over the two gear case screw holes.

4. Replace the two gear case screws. Hand tighten the screws.

5. To remove, reverse the procedure.

Ring

Tool hanger

WARNING

Use only sockets and other accessories speciﬁ cally designed for use on impact wrenches and drivers. Other sockets and accessories might shatter or break causing injury.

Drive shank

Detent pin

1. To attach a socket or other accessory, align the hole in the accessory with the detent pin on the drive shank. Hold the detent pin in while pushing the socket onto the drive shank. The detent pin will snap into place in the hole to secure the socket.

2. To remove the accessory, insert a nail or other thin object into the hole in the accessory and press the detent pin in. Pull the accessory off the drive shank.

Attaching and Removing Accessories (Fig. 5) Cat. No. 9092-20, 9096-20, or other Impact Wrenches using the Quick Change 1/2" Square Drive to 7/16" Hex Adapter

Cat. No. 9092-20 and accessory Cat. No. 48-66-0061 are intended for use with drill bits and adapters with a 7/16" Hex Quick Change shank. Cat. No. 9096-20 is intended for use with drill bits and adapters with a 5/8" Hex Quick Change shank. Both Hex Quick Change shanks have a ball-retainer groove. They are not intended for use with Hex Shank Bit Extensions.

Fig. 5

Open (Release)

Ball-retainer groove

Attaching and Removing Accessories (Fig. 3) Cat. No. 9071-20, 9075-20

This impact wrench is intended only for use with sockets designed for impact wrenches and that have a 1/2" square drive (3/4" square drive for Cat. No. 9075-20). Other sockets could shatter or break, causing injury.

Closed (Locked)

1. To attach an accessory, pull the chuck collar forward and insert the accessory shank. Release the collar. It may be necessary to pull the bit out slightly to engage the holding mechanism.

2. T o remove the accessory, pull the chuck collar forward and remove the accessory. Release the collar.

page 5

OPERATION

WARNING

To reduce the risk of injury, wear safety goggles or glasses with side shields. Unplug the tool before changing accessories or making adjustments.

Using the Forward/Reverse Switch (Fig. 6) Cat. No. 9072-20, 9072-22, 9092-20, and 9096-20

This impact wrench is equipped with a forward/reverse switch that may be set to forward or reverse rotation.

Fig. 6

1. For forward (clockwise) rotation, push the forward/reverse switch in the direction shown. Check the direction of rotation before use.

2. For reverse (counterclockwise) rotation, push the forward/reverse switch in the direction shown. Check the direction of rotation before use.

Reverse

Forward

Forward/ Reverse Switch

WARNING

Starting, Stopping and Controlling Speed (Fig. 8) Cat. No. 9072-20, 9072-22, 9092-20, and 9096-20

Fig. 8

Trigger

Speed dial

This impact wrench may be operated at any speed from 0 to full speed. The speed will remain variable up to the chosen speed dial setting by use of the trigger. The speed dial turns clockwise to increase the speed or counterclockwise to decrease the speed (Fig. 8).

1. Select a speed on the speed dial.

2. To start the tool, pull the trigger.

3. To vary the driving speed, increase or decrease pressure on the trigger . The further the trigger is pulled, the greater the speed.

4. To stop the tool, release the trigger.

Starting and Stopping the Tool (Fig. 9) Cat No. 9070-20, 9071-20, 9075-20

These impact wrenches are equipped with a rocker switch that offers both forward and reverse rotation.

Fig. 9

To increase the speed

To reduce the risk of injury, keep hands and cord away from the bit and all moving parts.

WARNING

To reduce the risk of explosion, electric shock and property damage, always check the work area for hidden pipes and wires before drilling.

WARNING

To reduce the risk of injury, only grasp tool by handle and red insulated surfaces (Fig. 7). Do not hold gray gear case when impacting or drilling.

Fig. 7

Rocker switch

1. For forward (clockwise) rotation, pull the lower portion of the switch.

2. For reverse (counterclockwise) rotation, pull the upper portion of the switch.

NOTE: To prevent damage to the motor and internal mechanism, allow the motor to stop completely before switching from forward to reverse or from reverse to forward.

Impacting Techniques

The longer a bolt, screw, or nut is impacted, the tighter it will become. To help prevent damaging the fasteners or workpieces, avoid excessive impacting. Be particularly careful when impacting smaller fasteners because they require less impacting to reach optimum torque.

Practice with various fasteners, noting the length of time required to reach the desired torque. Check the tightness with a hand-torque wrench. If the fasteners are too tight, reduce the impacting time. If they are not tight enough, increase the impacting time.

Impacting for two seconds is generally sufﬁ cient for a 3/8" bolt and one second for a 5/16" bolt. However, oil, dirt, rust or other matter on the threads or under the head of the fastener affects the degree of tightness.

The torque required to loosen a fastener averages 75% to 80% of the tightening torque, depending on the condition of the contacting surfaces. However, if rust or corrosion causes seizing, more torque may be required.

On light gasket jobs, run each fastener down to a relatively light torque and use a hand torque wrench for ﬁ nal tightening.

page 6

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