Central Pneumatic 66886 Manuel d'installation

1/2” COMPOSITE AIR IMPACT

WRENCH

66886

SET UP AND OPERATING INSTRUCTIONS

Distributed exclusively by Harbor Freight Tools®.

3491 Mission Oaks Blvd., Camarillo, CA 93011

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.

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

SKU 66886 For technical questions, please call 1-800-444-3353. Page 2

SAVE THIS MANUAL

Keep this manual for the safety warn-

ings and precautions, assembly, operat-

ing, 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 provid-

ed with this product:

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.

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

WARNING – When using tools, basic pre-

cautions 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 us-

ing 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 explo-

sive 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

SKU 66886 For technical questions, please call 1-800-444-3353. Page 3

tool. Distractions are able to result in

the loss of control of the tool.

Personal safety

a. Stay alert. Watch what you are do-

ing and use common sense when

operating the tool. Do not use the

tool while tired or under the inu-

ence of drugs, alcohol, or medica-

tion. 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 con-

necting 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 unexpect-

ed situations.

f. Use safety equipment. A

dust mask, non-skid safety

shoes and a hard hat must

be used for the applicable

conditions. Wear heavy-duty work

gloves during use.

g. Always wear eye protec-

tion. Wear ANSI-ap-

proved safety goggles.

h. Always wear hearing

protection when using

the tool. Prolonged expo-

sure 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 switch

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 adjust-

ments, 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.

SKU 66886 For technical questions, please call 1-800-444-3353. Page 4

e. Store the tool when it is idle out of

reach of children and other un-

trained persons. A tool is dangerous

in the hands of untrained users.

f. Maintain the tool with care. Keep a

cutting tool sharp and clean. A prop-

erly maintained tool, with sharp cut-

ting edges reduces the risk of binding

and is easier to control.

g. Check for misalignment or bind-

ing of moving parts, breakage of

parts, and any other condition that

affects the tool’s operation. If dam-

aged, have the 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.

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

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

Symbol Denitions

Symbol Property or statement

noNo-load speed

.../min Revolutions or reciprocation per

minute

PSI Pounds per square inch of pressure

ft-lb Foot-pounds of torque

BPM Blows per minute

CFM Cubic Feet per Minute ow

SCFM Cubic Feet per Minute ow at

standard conditions

NPT National pipe thread, tapered

Chart continued in next column.

SKU 66886 For technical questions, please call 1-800-444-3353. Page 5

Symbol Denitions

Symbol Property or statement

NPS National pipe thread, straight

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.

Specic Safety Instructions

1. The warnings and precautions dis-

cussed in this manual cannot cover

all possible conditions and situations

that may occur. It must be under-

stood 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: Some dust created by

power sanding, sawing, grinding, drill-

ing, 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 chemi-

cally treated lumber

Your risk from these exposures var-

ies, 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 lter out microscopic

particles. (California Health & Safety

Code § 25249.5, et seq.)

WARNING: The brass components

of this product contain lead, a chemi-

cal known to the State of California

to cause birth defects (or other repro-

ductive 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 gener-

ated may break and forcefully launch

pieces.

4. Attach all accessories properly to the

tool before connecting the air sup-

ply. A loose accessory may detach or

break during operation.

5. Obey the manual for the air compres-

sor 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.

Vibration Precautions

This tool vibrates during use. Re-

peated or long-term exposure to vibra-

tion may cause temporary or permanent

physical injury, particularly to the hands,

SKU 66886 For technical questions, please call 1-800-444-3353. Page 6

arms and shoulders. To reduce the risk of

vibration-related injury:

1. Anyone using vibrating tools regu-

larly 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, ner-

vous 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 pos-

sible.

2. Do not smoke during use. Nico-

tine reduces the blood supply to the

hands and ngers, 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 tool as

explained in this manual. If abnormal

vibration occurs, stop immediately.

SAVE THESE

INSTRUCTIONS.

FUNCTIONAL DESCRIPTION

Specications

Maximum Air Pressure 90 PSI

Air Inlet 1/4” -18 NPT

Maximum Speed* 509 BPM (Blows Per

Minute)

No Load Speed 7,000 RPM

Maximum Torque 230 Ft. Lbs.

Average Air

Consumption 6 SCFM @ 90 PSI

Arbor/Chuck Capacity 1/2”

Recommended Hose

Inside Diameter 1/2”

* Maximum speed at stated maximum air pressure. Ex-

cess 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 the item

is intact and undamaged. If any parts

are missing or broken, call Harbor Freight

Tools at 1-800-444-3353.

• This air tool may be shipped with a

protective plug covering the air inlet.

Remove this plug before set up.

REV 09c

SKU 66886 For technical questions, please call 1-800-444-3353. 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.

Quick

Coupler

Recommended Air Line Components

Regulator with

Pressure Gauge

Quick

Coupler Air Hose

on Reel

Valve FilterOiler

Male

Connector

Tool

Air

Compressor

Male

Connector

1. Incorporate a lter, regulator with

pressure gauge, oiler, in-line shutoff

valve, and quick coupler for best ser-

vice, 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 be-

cause 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 be-

fore operation. Add a few more drops

after each hour of continual use.

2. Attach an air hose to the compres-

sor’s air outlet. Connect the air hose

to the air inlet of the tool. Other com-

ponents, such as a connector 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 perfor-

mance, can be hindered by under-

sized 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.

4. Turn the tool’s throttle or switch to the

off position; refer to Operation section

for description of controls.

5. Close the in-line safety valve be-

tween the compressor and the tool.

6. Turn on air compressor according to

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,

while checking the air output gauge

to set the right pressure range.

8. Inspect the air connections for leaks.

Repair any leaks found.

SKU 66886 For technical questions, please call 1-800-444-3353. Page 8

9. If the tool will not be used at this

time, turn off and detach the air sup-

ply, safely discharge any residual air

pressure, and release the throttle

and/or turn the switch to its off posi-

tion to prevent accidental operation.

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

pressure in the tool, and

release the throttle and/or turn

the switch to its off position

before performing any

inspection, maintenance, or

cleaning procedures.

TO PREVENT SERIOUS

INJURY: Do not adjust or

tamper with any control or

component in a way not

specically explained within

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 injury and distraction.

2. Route air hose along a safe route to

reach work area without creating a

tripping hazard or exposing 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 ob-

jects (such as utility lines or foreign

objects) nearby that will present a

hazard while working.

General Operating Instructions

1. 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.

2. Select appropriate size 1/2” drive

socket. Use only impact type sockets.

3. Push and snap socket (not included)

onto Anvil (30).

SKU 66886 For technical questions, please call 1-800-444-3353. Page 9

4. The Air Impact Wrench can be used

in either Forward or Reverse. To op-

erate in Forward, turn the Regulator

Knob (42) clockwise or to the right.

NOTE: There are three torque set-

tings for the Forward direction.

5. For Reverse, turn the Regulator Knob

to counterclockwise or to the left.

NOTE: There is only one torque set-

tings for the Reverse direction.

6. To tighten, place the socket over the

nut you wish to tighten.

7. Hold the Rubber Grip (40) rmly and

gently squeeze the Trigger (2).

8. To loosen, set the Regulator Knob to

the Reverse setting.

9. Place socket (not included) over de-

sired nut, hold Rubber Grip (40) rmly

and gently squeeze the Trigger (2).

10. If tool requires more force to

accomplish task in Forward or

Reverse setting, verify tool receives

sufcient, unobstructed airow (CFM)

and increase the pressure (PSI)

output of regulator up to maximum air

pressure rating of tool.

CAUTION! TO PREVENT TOOL

AND ACCESSORY FAILURE,

RESULTING IN INJURY:

Do not exceed tool’s maximum air

pressure rating (90 PSI).

If tool still does not have sufcient

force at maximum pressure and

sufcient airow, then a larger tool

may be required.

11. When the nut is tightened or loos-

ened, release the Trigger.

12. To prevent accidents, turn off tool,

detach air supply, safely discharge

any residual air pressure in tool, and

release Trigger after use. Clean ex-

ternal surfaces of tool with clean, dry

cloth. Store indoors out of children’s

reach.

USER-MAINTENANCE

INSTRUCTIONS

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

air leaks are detected, have

the problem corrected before

further use.

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.

SKU 66886 For technical questions, please call 1-800-444-3353. Page 10

Cleaning, Maintenance, and

Lubrication

Note: These procedures are in addition to

the regular checks and maintenance

explained as part of the regular op-

eration of the air-operated tool.

1. Daily - Air Supply Maintenance:

Every day, perform maintenance on

the air supply according to the com-

ponent manufacturers’ instructions.

The lubricator’s oil level needs to be

maintained and the moisture lter

must be regularly drained. Perform-

ing 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 In-

spection:

Have the internal mechanism

cleaned, inspected, and lubricated by

a qualied technician.

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. Vane wear or damage.

1. Check for loose connections and make sure

that air supply is providing enough air ow

(CFM) 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. Replace all vanes.

Housing heats

during use.

1. Incorrect lubrication or not

enough lubrication.

2. Worn parts.

1. Lubricate using air tool oil.

2. Have qualied technician inspect internal

mechanism and replace parts as needed.

Severe air

leakage.

(Slight air leakage

is normal,

especially on older

tools.)

1. Cross-threaded housing

components.

2. Loose housing.

3. Damaged valve or housing.

4. Dirty, worn or damaged valve.

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.

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