HUSKY H4440 2-Inch Impact Wrench User Guide

HUSKY H4440 2-Inch Impact Wrench

Safety Information

WORK AREA SAFETY

1. Keep your work area clean and well-lit. Ensure floors are not slippery from wax or dust.
2. Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust. Power tools create sparks that may ignite dust or fumes. Keep bystanders, children, and visitors away while operating tools. Distractions can cause you to lose control.
3. Always disconnect the air supply and power supply before making adjustments, servicing a tool, changing an accessory, or when a tool is not in use.
4. For further information on the safe use of air tools, we advise you to obtain a copy of CAGI B186.1-2009 from Husky Air Tools 851 Jupiter Park Lane Jupiter, Florida 33458 877-260-1630.

PERSONAL SAFETY

1. Use safety equipment. Always wear eye protection with side shields when operating power tools. Dust masks, nonskid safety shoes, hard hats, or hearing protection must be used for appropriate conditions.
2. Stay alert when operating a power tool. Do not use the tool while tired or under the influence of drugs, alcohol, or medication.
3. Do not wear loose clothing or jewelry. Contain long hair. Keep your hair, clothing, and gloves away from moving parts. Loose clothes, jewelry, or long hair can be caught in moving parts.
4. Keep proper footing and balance at all times. Proper footing and balance enable better control of the tool in unexpected situations.
5. Do not use a ladder or unstable support.

• WARNING: Risk of injury to persons. Read and understand operating instructions. Always become familiar with all the instructions and warnings before operating any pneumatic tool.
• Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contain 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. Your risk from those 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 dust masks that are specifically designed to filter out microscopic particles.
• This product can expose you to chemicals including lead, which is known to the state of California to cause cancer and birth. Defects or other reproductive harm. For more information go to www.P65warnings.Ca.Gov

AIR COMPRESSOR AND AIR TOOL SAFETY

1. Risk of Bursting. Do not adjust the regulator to result in output pressure greater than the marked maximum pressure of this air tool.
2. Ensure the hose is free of obstructions or snags. Entangled or snarled hoses can cause loss of balance or footing and may become damaged.
3. Never leave a tool unattended with the air hose attached.
4. Do not operate this tool if it does not contain a legible warning label.
5. Do not continue to use a tool or hose that leaks air or does not function properly.
6. Never direct a jet of compressed air toward people or animals.
7. Protect your lungs. Wear a face or dust mask if the operation is dusty.

• WARNING: Hearing Protection is Recommended Hearing protection should be used when the noise level exposure equals or exceeds an 8-hour time-weighted average sound level of 85dBA.
• Do not use it at a pressure greater than the rated maximum pressure of this air tool.
• Do not attempt to modify this tool or create accessories not recommended for use with this tool. Any such alteration or modification is misuse and could result in a hazardous condition leading to possible serious personal injury.
• Operating any power tool can result in foreign objects being thrown into your eyes, which can result in severe eye damage. Before beginning operation, always wear safety goggles, safety glasses with side shields, or a full face shield when needed. Always use eye protection marked to comply with ANSI Z87.1.
• Avoid Prolonged Exposure to Vibration Pneumatic tools can vibrate during use. Prolonged exposure to vibration or very repetitive hand and arm movements, can cause injury. Stop using any tool if discomfort, tingling feeling, or pain occurs. You should consult your physician before resuming the use of the tool.

Warranty

HUSKY AIR TOOLS LIMITED THREE-YEAR WARRANTY
If within three years from the date of purchase, this Husky air tool product fails due to a defect in materials or workmanship, please immediately contact the Customer Service Team at 1-888-43-HUSKY 8 a.m. – 6 p.m., EST, Monday- Friday, except normal holidays. Do not return the air tool to the store. Please be prepared to send the product, postage prepaid, to the address provided by the Customer Service Team. The package must also include a copy of the dated first owner purchase receipt with the air tool model included and circled. The serial number and month/year of manufacture of the air tool must also be included to determine the warranty. A defective product will b promptly replaced with a new one of equal or greater value. This warranty excludes incidental/consequential damages and failures due to misuse, abuse, or normal wear and tear. This warranty gives you specific rights, and you may also have other rights, which vary, from state to state. Please contact the Customer Service Team at 1-888-43-HUSKY or visit www.HUSKYTOOLS.com.
ADDITIONAL LIMITATIONS
To the extent permitted by applicable law, all implied warranties, including warranties of merchantability or fitness for a particular purpose, are disclaimed. Any implied warranties, including warranties of merchantability or fitness for a particular purpose, that cannot be disclaimed under state law are limited to two years from the date of purchase. Husky is not responsible for direct, indirect, incidental, special, or consequential damages. If this air compressor is used for commercial purposes, the warranty will apply for ninety (90) days from the date of purchase. Some states do not allow limitations on how long an implied warranty lasts and/or do not allow the exclusion or limitation of incidental or consequential damages, so the above limitations may not apply to you. This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state.

Pre-Installation

SPECIFICATIONS

Free Speed (RPM)| Weight (lbs)| Length (in)| Air Cons. (SCFM)| Maximum Operating Pressure (PSI)
---|---|---|---|---
9,000| 5 .6| 7 .40| 5| 90

PACKAGE CONTENTS

Installation

1. Cleaning the air hose
   

• A 3/8″ air hose is required, with a maximum length of 25 ft.
• Clean the air hose of accumulated dust and moisture before connecting it to the air supply.

NOTE: If a longer air hose is required, connect a 1/2″ air hose to the 3/8″ air hose to ensure the impact wrench has the necessary air supply.

1. Connecting to the air supply

• Always use clean dry air. Excessive moisture and dirt will greatly reduce the life of any air motor. We recommend the installation of an in-line filter regulator-lubricator as close to the tool as possible.
• Ensure all hoses and fittings are the correct size and secured tightly.

Operation

1. Operating the impact wrench

• This 1/2″ Impact Wrench is designed to operate on 90 PSIG. Lower pressure (below 90 PSIG) will reduce the performance of the tool. Higher air pressure (over 90 PSIG) raises the performance of the tool beyond its rated capacity and could cause serious damage to the tool and the user.

Changing the output torque direction

• This tool features the reverse switch to change the output torque direction to tighten (assemble) or loosen (disassemble) the bolt or fastener.
• Control the output torque direction by pushing the reverse switch button to the F (Forward) or R (Reverse) position to change the direction.

Changing the output torque level

• This tool features an air regulator to manage the output power.
• Press the air regulator in, then adjust to your desired torque level.
• 1 means minimum torque and means full power.

Installing and removing the impact sockets

WARNING: Disconnect the tool from the air supply before servicing or changing accessories. Always use sockets rated for impact wrenches.

To install the impact socket:

• Disconnect the tool from the air source.
• Select the suitable and desirable socket size.
• Press fit the anvil into the socket.

To remove the impact socket:

• Disconnect the tool from the air source.
• Use your hand or a suitable tool to remove the socket.

Tightening or loosening the bolt or fastener

WARNING: Once a bolt or fastener is seated, impacting for longer than five (5) seconds will cause excessive wear and possible damage to the impact mechanism. If it takes longer to tighten or loosen your bolt or fastener, we recommend the use of a larger-sized impact wrench.

• Fit the impact socket.
• Hold the impact wrench with one hand.
• Ensure that the operator is aware of the torque direction to tighten (Forward) or loosen (Reverse) and has selected the suitable torque level.
• Use the tool to tighten or loosen the bolt or fastener.

Maintenance

Ensure the airline is shut off and drained of air before removing this tool for service or changing sockets. This will prevent the tool from operating if the throttle is accidentally engaged.

LUBRICATION

• An in-line filter regulator-lubricator is recommended as it increases tool life and keeps the tool in sustained operation.
• Regularly check and fill the in-line lubricator with air tool oil. Avoid using excessive amounts of oil.
• Adjust the in-line lubricator by placing a sheet of paper next to the tool’s exhaust ports and holding the throttle open for approximately 30 seconds. The lubricator is properly set when a light stain of oil collects on the paper.
• If it is necessary to store the tool for an extended period of time (overnight, weekend, etc.), generously lubricate the tool through the air inlet. Run the tool for approximately 30 seconds to ensure the oil is evenly distributed throughout the tool. Store the tool in a clean and dry environment.
• Recommended lubricants: Air tool oil or any other high-grade turbine oil containing moisture absorbent, rust inhibitors, metal wetting agents, and an EP (extreme pressure) additive.

Troubleshooting

instructions in this manual .
The air pressure is low .|

• Adjust the regulator on the tool to the maximum setting.
• Adjust the compressor regulator to the tool’s maximum setting of 90 psi

The air hose leaks .| Tighten and seal the hose fittings with pipe thread tape if leaks are found .
The air pressure drops .|

•  Ensure the hose is the proper size . Long hoses or tools using large volumes of air may require a hose with an I .D . of ½” or larger depending on the total length of the hose.
• Do not use multiple numbers of hoses connected together with a quick connect fitting. This causes additional pressure drops and reduces the tool power. Directly connect the hoses together.

There is a worn rotor blade in the motor.| Replace the rotor blade.
There is a worn ball bearing in the motor.| Remove and inspect the bearing for rust, dirt, and grit. Replace or clean and grease the bearing with bearing grease.
There is moisture blowing out of the tool’s exhaust.| There is water in the tank.| Drain the tank. (See the air compressor manual for instructions .) Lubricate the tool and run it until water is not evident. Lubricate the tool again and run for 1-2 seconds.
The tool impacts slowly or not at all.| The tool needs lubricating.| Lubricate the air motor and the impact mechanism according to the lubrication instructions in this manual.
The tool regulator setting is in the wrong position.| Adjust the regulator on the tool to the maximum setting.
The tool impacts rapidly, but will not remove bolts.| The tool has a worn impact mechanism.| Replace the worn impact mechanism components.
The tool does not impact.| The impact mechanism is broken.| Replace the broken impact mechanism components.

Service Parts

Reference Number|

Part Number

|

Description

|

Qty

|  | Reference Number|

Part Number

|

Description

|

Qty.

---|---|---|---|---|---|---|---|---
1| 9H444001| Housing| 1| 21| 9H444021| Ball Bearing| 1
2| 9H444002| Trigger Valve| 1| 22| 9H444022| Rear End Cap| 1
3| 9H444003| O Ring| 2| 23| 9H444023| Rotor| 1
4| 9H444004| Valve Stem| 1| 24| 9H444024| Rotor Blade| 6
5| 9H444005| Spring| 1| 25| 9H444025| Cylinder| 1
6| 9H4455-25| Steel Ball| 1| 26| 9H444026| Front End Plate| 1
8| 9H444008| Spring Pin| 1| 27| 9H444027| Pin| 1
9| 9H4455-05| Oil Seal| 1| 28| 9H444028| Ball Bearing| 1
10| 9F320-24-34A| O Ring| 1| 29| 9H444029| Steel Washer| 2
11| 9H444011| Pin| 1| 31| 9CP68-DA-01| Hammer Cage| 1
12| 9H444012| Valve Seat| 1| 32| 9CP68-DA-02| Hammer Dog| 2
13| 9H444013| Spring| 1| 33| 9CP68-DA-03| Hammer Pin| 2
14| 9H444014| Air Inlet Fitting| 1| 34| 9CP68-DA-04| Anvil| 1
15| 9H444015| Hex Screw| 1| 35| 9CP68-DA-05| O Ring| 1
16| 9H444016| Trigger| 1| 36| 9CP68-DA-06| Retainer| 1
17| 9H444017| Power Regulator Button| 1| 37| 9H444037| Steel Plate| 1
18| 9H444018| Screw| 1| 38| 9H444038| Gasket| 1
19| 9H444019| Gasket| 1| 39| 9H444039| Hammer Case| 1
20| 9H4455-17| Retainer| 1| 40| 9F19982-21| Screw| 3

• Questions, problems, missing parts? Before returning to the store, call Husky Customer Service

• 8 a.m.-6 p.m., EST, Monday-Friday 1-888-43-HUSKY HUSKYTOOLS.COM
  

• Retain this manual for future use.

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