Harbor Freight Tools 92453 User Manual

Download

Page 1

3/8” AIR IMPACT WRENCH

92453

SET UP AND OPERATING INSTRUCTIONS

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© 2005 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.

Manual Revised 11h

Page 2

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.

Safety Alert Symbol and Signal

Words

In this manual, on the labeling, and all other information provided with this product:

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.

IMPORTANT SAFETY

INSTRUCTIONS

INSTRUCTIONS PERTAINING

TO A RISK OF FIRE,

ELECTRIC SHOCK, OR

INJURY TO PERSONS

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.

WARNING – When using tools, basic

precautions should always be followed, including the following:

General

a. To reduce the risks of electric

shock, re, and injury to persons,

read all the instructions before using the tool.

Work area

a. Keep the work area clean and well

lighted. Cluttered benches and dark

areas increase the risks of electric

shock, re, and injury to persons.

b. Do not operate the tool in

explosive atmospheres, such as in

the presence of ammable liquids,

gases, or dust. The tool is able to create sparks resulting in the ignition of the dust or fumes.

c. Keep bystanders, children, and

visitors away while operating the

Page 2For technical questions, please call 1-800-444-3353.SKU 92453

Page 3

tool. Distractions are able to result in the loss of control of the tool.

conditions. Wear heavy-duty work gloves during use.

Personal safety

a. Stay alert. Watch what you are

doing and use common sense when operating the tool. Do not use the tool while tired or under

the inuence of drugs, alcohol, or

medication. A moment of inattention while operating the tool increases the

risk of injury to persons.

b. Dress properly. Do not wear loose

clothing or jewelry. Contain long hair. Keep hair, clothing, and gloves away from moving parts.

Loose clothes, jewelry, or long hair increases the risk of injury to persons

as a result of being caught in moving parts.

c. Avoid unintentional starting.

Be sure the switch is off before connecting to the air supply. Do not

carry the tool with your nger on the

switch or connect the tool to the air supply with the switch on.

d. Remove adjusting keys and

wrenches before turning the tool on. A wrench or a key that is left

attached to a rotating part of the tool

increases the risk of personal injury.

e. Do not overreach. Keep proper

footing and balance at all times.

Proper footing and balance enables better control of the tool in unexpected situations.

f. Use safety equipment. A

dust mask, non-skid safety shoes and a hard hat must be used for the applicable

g. Always wear eye

protection. Wear ANSIapproved safety goggles.

h. Always wear hearing

protection when using the tool. Prolonged

exposure to high intensity

noise is able to cause hearing loss.

Tool use and care

a. Use clamps or another practical

way to secure and support the

workpiece to a stable platform. Holding the work by hand or against the body is unstable and is able to lead to loss of control.

b. Do not force the tool. Use the

correct tool for the application. The

correct tool will do the job better and

safer at the rate for which the tool is designed.

c. Do not use the tool if the Trigger

does not turn the tool on or off. Any tool that cannot be controlled with the switch is dangerous and must be repaired.

d. Disconnect the tool from the

air source before making any adjustments, changing accessories, or storing the tool.

Such preventive safety measures reduce the risk of starting the tool unintentionally. Turn off and detach the air supply, safely discharge any residual air pressure, and release the throttle and/or turn the switch to its off position before leaving the work area.

Page 3For technical questions, please call 1-800-444-3353.SKU 92453

Page 4

e. Store tool when idle and out

of reach of children and other

untrained persons. A tool is dangerous in hands of untrained users.

f. Maintain the tool with care. A

properly maintained tool is easier to control.

g. Check for misalignment or binding

of moving parts, breakage of parts, and any other condition that affects the tool’s operation. If

damaged, have tool serviced before using. Many accidents are caused by poorly maintained tools. There is a risk of bursting if the tool is damaged.

h. Use only accessories that are

identied by the manufacturer for the specic tool model. Use of an

accessory not intended for use with

the specic tool model, increases the risk of injury to persons.

to persons. Use only clean, dry, regulated compressed air at the rated pressure or within the rated pressure range as marked on the tool. Always verify prior to using the tool that the

air source has been adjusted to the

rated air pressure or within the rated air-pressure range.

b. Never use oxygen, carbon dioxide,

combustible gases or any bottled

gas as an air source for the tool. Such gases are capable of explosion

and serious injury to persons.

SAVE THESE

INSTRUCTIONS.

SYMBOLS AND

SPECIFIC SAFETY

INSTRUCTIONS

Service

a. Tool service must be performed

only by qualied repair personnel.

b. When servicing a tool, use only

identical replacement parts. Use only authorized parts.

c. Use only the lubricants supplied

with the tool or specied by the

manufacturer.

Air source

a. Never connect to an air

source that is capable of exceeding 90 psi. Over

pressurizing the tool may

cause bursting, abnormal operation,

breakage of the tool or serious injury

Symbol Denitions

Symbol Property or statement

.../min

PSI

ft-lb

BPM

CFM

SCFM

NPT

NPS

No-load speed

Revolutions or reciprocation per minute

Pounds per square inch of pressure

Foot-pounds of torque

Blows per minute

Cubic Feet per Minute ow

Cubic Feet per Minute ow at

standard conditions

National pipe thread, tapered

National pipe thread, straight

Chart continued in next column.

Page 4For technical questions, please call 1-800-444-3353.SKU 92453

Page 5

Symbol Denitions

Symbol Property or statement

WARNING marking concerning Risk

of Eye Injury. Wear ANSI-approved

eye protection.

WARNING marking concerning Risk of Hearing Loss. Wear hearing protection.

WARNING marking concerning Risk

of Respiratory Injury. Wear NIOSH-

approved dust mask/respirator.

WARNING marking concerning Risk of Explosion.

5. Obey the manual for the air compressor used to power this tool.

6. Install an in-line shutoff valve to allow immediate control over the air supply in an emergency, even if a hose is ruptured.

7. Use this tool with both hands only. Using tools with only one hand can result in loss of control.

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.

Specic Safety Instructions

1. The warnings and precautions discussed in this 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.

2. WARNING: The brass components of this product contain lead, a chemical known to the State of California to cause birth defects (or other reproductive harm). (California Health & Safety code § 25249.5, et seq.)

3. Only use with accessories rated to handle the forces exerted by this tool during operation. Other accessories not designed for the forces generated may break and forcefully launch pieces.

Vibration Precautions

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

rst 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 ngers),

seek medical advice as soon as

possible.

4. Attach all accessories properly to the tool before connecting the air supply. A loose accessory may detach or break during operation.

2. Do not smoke during use. Nicotine reduces the blood supply to the

hands and ngers, increasing the risk of vibration-related injury.

Page 5For technical questions, please call 1-800-444-3353.SKU 92453

Page 6

3. Wear suitable gloves to reduce the vibration effects on the user.

FUNCTIONAL DESCRIPTION

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 tool as explained in this manual. If abnormal vibration occurs, stop immediately.

SAVE THESE

INSTRUCTIONS.

Specications

Maximum Air Pressure 90 PSI

Air Inlet 1/4” -18 NPT

Drive Size 3/8” Square Drive

Maximum Speed* 11,000 RPM

Average Air Consumption 4.0 SCFM @ 90 PSI

Maximum Torque 200 ft-lb

Torque Range 20-180 ft-lb

Blows Per Minute (BPM) 1660

Standard Bolt Size 7/16”

Recommended Hose Size 3/8”

* Maximum speed at stated maximum air pressure.

Excess air pressure is hazardous and may cause the tool to exceed stated maximum speed.

INITIAL TOOL SET UP/

ASSEMBLY

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 the Assembly Diagram near the end of this manual.

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 1-800-444-3353 as soon as possible.

• This air tool may be shipped with a protective plug covering the air inlet. Remove this plug before set up.

Page 6For technical questions, please call 1-800-444-3353.SKU 92453

Page 7

Air Supply

TO PREVENT

EXPLOSION: Use only clean, dry, regulated, compressed air to power this tool. Do not use oxygen, carbon dioxide, combustible gases, or any other bottled gas as a power source for this tool.

Coupler

Plug

Tool

Quick

Coupler

Valve FilterOiler

Quick

Coupler

Regulator with

Pressure Gauge

Recommended Air Line Components

Coupler

Plug

Air Hose

on Reel

Air

Compressor

drops after each hour of continual use.

2. Attach an air hose to the compressor’s air outlet. Connect the air hose to the air inlet of the tool. Other components, such as a coupler plug and quick coupler, will make

operation more efcient, but are not

required.

WARNING! TO PREVENT SERIOUS

INJURY FROM ACCIDENTAL OPERATION: Do not install a female quick coupler on the tool. Such a coupler

contains an air valve that will allow the air tool to retain pressure and operate accidentally after the air supply is disconnected.

Note: Air ow, and therefore tool

performance, can be hindered by undersized air supply components.

3. The air hose must be long enough to reach the work area with enough extra length to allow free movement while working.

1. Incorporate a lter, regulator with pressure gauge, oiler, in-line shutoff valve, and quick coupler for best service, as shown in the diagram above. An in-line shutoff ball

valve is an important safety device because it controls the air supply even if the air hose is ruptured. The shutoff valve should be a ball valve because it can be closed quickly.

Note: If an automatic oiler system is not

used, add a few drops of Pneumatic Tool Oil to the airline connection before operation. Add a few more

4. Release the tool’s Trigger (14); refer to Operation section for description of controls.

5. Close the in-line safety valve between the compressor and the tool.

6. Turn on the air compressor according to the manufacturer’s directions and allow it to build up pressure until it cycles off.

7. Adjust the air compressor’s output regulator so that the air output is enough to properly power the tool, but the output will not exceed the tool’s maximum air pressure at any

time. Adjust the pressure gradually,

Page 7For technical questions, please call 1-800-444-3353.SKU 92453

Page 8

while checking the air output gauge to set the right pressure range.

8. Inspect the air connections for leaks. Repair any leaks found.

pressure in the tool, and release Trigger before performing any inspection, maintenance, or cleaning procedures.

9. If the tool will not be used at this time, turn off and detach the air supply, safely discharge any residual air pressure, and release the throttle and/or turn the switch to its off position to prevent accidental operation.

10. Drain the compressor regularly.

Note: Residual air pressure should not be

present after the tool is disconnected from the air supply. However, it is a good safety measure to attempt to discharge the tool in a safe fashion after disconnecting to ensure that the tool is disconnected and unpowered.

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.

Inspect tool before use, looking for damaged, loose, and missing parts. If any problems are found, do not use tool until repaired.

Tool Set Up

TO PREVENT

SERIOUS INJURY FROM ACCIDENTAL OPERATION: Turn off the tool, detach the air supply, safely discharge any residual air

TO PREVENT SERIOUS INJURY: Do not adjust or tamper with any control or component in a way not

specically explained within

this manual. Improper adjustment can result in tool failure or other serious hazards.

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 air hose along a safe route to reach the work area without creating a tripping hazard or exposing the air hose to possible damage. The air hose must be long enough to reach the work area with enough extra length to allow free movement while working.

3. Secure loose workpieces using a vise or clamps (not included) to prevent movement while working.

4. There must not be hazardous objects (such as utility lines or foreign

objects) nearby that will present a

hazard while working.

Page 8For technical questions, please call 1-800-444-3353.SKU 92453

Page 9

General Operating Instructions

1. WARNING! Use only 3/8” Drive Impact type sockets (sold separately).

2. If an automatic oiler is not used, add a few drops of Pneumatic Tool Oil to the airline connection before use. Add a few drops more after each hour of continual use.

3. Push and snap the socket (not included) onto the Anvil (31).

4. Slide Reverse Valve (9) to the left for clockwise (forward) rotation. NOTE: This is a sliding valve that is connected to Regulator Knob (12).

5. Place the socket over the nut you wish to tighten.

6. Grip tool rmly with both hands and gently squeeze Trigger (14).

10. Once nut is tightened, release Trigger. Turn off the air supply and disconnect the hose.

11. If available, check the recommended

torque specication for the nut. Use

a torque wrench to tighten the nut to the proper setting after using the Impact Wrench.

12. To set Impact Wrench in Reverse, slide Reverse Valve to the right for counterclockwise (reverse) rotation.

Then adjust air ow by turning Air

Regulator Knob from positions 1 through 5. Position 1 allows the

lowest amount of air ow, and

Position 5 the highest.

13. WARNING! Before changing the rotational direction of the tool, release the Trigger and allow the tool to come to a complete stop.

7. Adjust air ow by turning Air Regulator Knob from positions 1 through 5. Match up desired number setting with the recessed dimple. Position 1 allows the lowest amount

of air ow, and Position 5 the highest.

8. If the tool requires more force to accomplish task, verify that the tool

receives sufcient, unobstructed airow (CFM) and increase the

pressure (PSI) output of the regulator up to the maximum air pressure rating of this tool.

9. CAUTION! TO PREVENT TOOL

AND ACCESSORY FAILURE, RESULTING IN INJURY: Do not exceed the tool’s maximum air pressure rating. If tool still does

not have sufcient force at maximum pressure and sufcient airow, then a

larger tool may be required.

14. When the nut is loosened, release Trigger. Turn off air supply and disconnect the hose. If needed, remove the nut from the socket.

15. To prevent accidents, turn off the tool, detach the air supply, safely discharge any residual air pressure in the tool, and release the throttle and/ or turn the switch to its off position after use. Clean external surfaces of the tool with clean, dry cloth. Then store the tool indoors out of children’s reach.

Page 9For technical questions, please call 1-800-444-3353.SKU 92453

Page 10

USER-MAINTENANCE

INSTRUCTIONS

Cleaning, Maintenance, and

Lubrication

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 off tool, detach air supply, safely discharge any residual air pressure in tool, and release Trigger before performing any inspection, maintenance, or cleaning procedures.

TO PREVENT SERIOUS INJURY FROM TOOL FAILURE: Do not use damaged equipment. If abnormal noise, vibration, or leaking air occurs, have problem corrected before further use.

Note: These procedures are in addition to

the regular checks and maintenance explained as part of the regular operation of the air-operated tool.

1. Daily - Air Supply Maintenance: Every day, perform maintenance on the air supply according to the component manufacturers’ instructions. The lubricator’s oil level needs to be maintained and

the moisture lter must be regularly

drained. Performing routine maintenance on the air supply will allow the tool to operate more safely and will also reduce wear on the tool.

2. Quarterly (every 3 months) -

Tool Disassembly, Cleaning, and Inspection: Have the internal

mechanism cleaned, inspected, and

lubricated by a qualied technician.

3. Use the zerk tting at the rear of housing to periodically add tool oil.

TO PREVENT EXPLOSION: Lubricate tool only with

specied lubricants.

Lubricate the air inlet using only pneumatic tool oil. Lubricate the internal mechanism using only white lithium grease. Other lubricants may damage the mechanism and may be

highly ammable, causing an

explosion.

4. Clean the inlet bushing and air strainer screen regularly.

5. Regularly check if the housing cap screws are tight. If not, tighten them.

6. When storing, always store Impact Wrench in clean, dry and safe location out of reach of children)

Page 10For technical questions, please call 1-800-444-3353.SKU 92453

Page 11

Troubleshooting

Problem Possible Causes Likely Solutions

Decreased output. 1. Not enough air pressure and/

or air ow.

2. Obstructed Trigger.

3. Incorrect lubrication or not enough lubrication.

4. Blocked air inlet screen (if equipped).

5. Air leaking from loose housing.

6. Mechanism contaminated.

7. Undersized air supply hose.

Housing heats during use.

Severe air leakage. (Slight air leakage is normal, especially on older tools.)

1. Incorrect lubrication or not enough lubrication.

2. Worn parts.

1. Cross-threaded housing components.

2. Loose housing.

3. Damaged valve or housing.

4. Dirty, worn or damaged valve.

1. Check for loose connections and make sure

that air supply is providing enough air ow

(SCFM) at required pressure (PSI) to the tool’s air inlet. Do not exceed maximum air

pressure.

2. Clean around Trigger to ensure free movement.

3. Lubricate using air tool oil and grease according to directions.

4. Clean air inlet screen of buildup.

5. Make sure housing is properly assembled and tight.

6. Have qualied technician clean and lubricate

mechanism. Install in-line lter in air supply

as stated in Initial Set Up: Air Supply.

7. Use 3/8” hose.

1. Lubricate using air tool oil and grease according to directions.

2. Have qualied technician inspect internal mechanism and replace parts as needed.

1. Check for incorrect alignment and uneven gaps. If cross-threaded, disassemble and replace damaged parts before use.

2. Tighten housing assembly. If housing cannot tighten properly, internal parts may be misaligned.

3. Replace damaged components.

4. Clean or replace valve assembly.

Follow all safety precautions whenever diagnosing or servicing the

tool. Disconnect air supply before service.

Page 11For technical questions, please call 1-800-444-3353.SKU 92453

Page 12

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

Part Description Q’ty

1 Housing 1 2 Throttle Valve Seat 1 3 Throttle Valve 1 4 Throttle Valve Spring 1 5 Exhaust Deector 1 6 Inlet 1 7 Grease Fitting 1 8 Reverse Valve O-Ring 2

9 Reverse Valve 1 10 Regulator Knob Position Ball 1 11 Regulator Knob Position Spring 1 12 Regulator Knob 1 13 Regulator Knob Screw 1 14 Trigger 1 15 Trigger Pin 1 16 End Plate Gasket 1 17 Rear Motor Bearing Retainer 1 18 Rear Motor Bearing 1 19 Rear End Plate 1 20 Rotor 1

Part Description Q’ty

21 Cylinder 1 22 Rotor Blade 6 23 Cylinder Pin 1 24 Front End Plate 1

Front Rotor Bearing 1

Hammer Frame Washer 1

Hammer Housing Gasket 1

Hammer Frame 1

Hammer 1

Hammer Pin 2

Anvil 1

Hammer Bushing 1

Hammer Housing 1

Hammer Housing Cap Screw 3

Socket Retainer O-Ring 1

Socket Retainer 1

Reverse Valve Bushing 1

O-Ring 1

Outer Cover 1

Bushing 1

Page 12For technical questions, please call 1-800-444-3353.SKU 92453

Page 13

ASSEMBLY DIAGRAM

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.

Page 13For technical questions, please call 1-800-444-3353.SKU 92453

Page 14

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 veries 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 specic legal rights and you may also have other rights

which vary from state to state.

Page 14For technical questions, please call 1-800-444-3353.SKU 92453