Central Pneumatic CENTRAL PNEUMATIC 68128 Installationshandbuch

1” PINLESS

AIR IMPACT WRENCH

68128

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.

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.

SKU 68128 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

To reduce the risks of electrica.

shock, re, and injury to persons,

read all the instructions before us-

ing the tool.

Work area

Keep the work area clean and wella.

lighted. Cluttered benches and dark

areas increase the risks of electric

shock, re, and injury to persons.

Do not operate the tool in explo-b.

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.

Keep bystanders, children, andc.

visitors away while operating the

SKU 68128 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

Stay alert. Watch what you are do-a.

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.

Dress properly. Do not wear looseb.

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.

Avoid unintentional starting. Bec.

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.

Remove adjusting keys andd.

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.

Do not overreach. Keep propere.

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

Use clamps or another practicala.

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.

Do not force the tool.b. 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.

Do not use the tool if the Triggerc.

switch does not turn the tool on or

off. Any tool that cannot be controlled

with the Trigger is dangerous and

must be repaired.

Disconnect the tool from the aird.

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 Trigger to its off position before

leaving the work area.

SKU 68128 For technical questions, please call 1-800-444-3353. Page 4

Store the tool when it is idle out ofe.

reach of children and other un-

trained persons. A tool is dangerous

in the hands of untrained users.

Maintain the tool with care.f. A

properly maintained tool is easier to

control.

Check for misalignment or bind-g.

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.

Use only accessories that areh.

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

Tool service must be performeda.

only by qualied repair personnel.

When servicing a tool, use onlyb.

identical replacement parts. Use

only authorized parts.

Use only the lubricants suppliedc.

with the tool or specied by the

manufacturer.

Air source

a. Never connect to an air

source that is capable of

exceeding 200 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.

Never use oxygen, carbon dioxide,b.

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

NPS National pipe thread, straight

Chart continued in next column.

SKU 68128 For technical questions, please call 1-800-444-3353. 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.

Specic Safety Instructions

The warnings and precautions dis-1.

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.

WARNING: The brass components2.

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.)

Only use with accessories rated to3.

handle the forces exerted by this tool

during operation. Other accessories

not designed for the forces gener-

ated may break and forcefully launch

pieces.

Attach all accessories properly to the4.

tool before connecting the air sup-

ply. A loose accessory may detach or

break during operation.

Obey the manual for the air compres-5.

sor used to power this tool.

Install an in-line shutoff valve to allow6.

immediate control over the air supply

in an emergency, even if a hose is

ruptured.

Use this tool with both hands only.7.

Using tools with only one hand can

result in loss of control.

Do not lay the tool down until it has8.

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,

arms and shoulders. To reduce the risk of

vibration-related injury:

Anyone using vibrating tools regu-1.

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.

Do not smoke during use. Nico-2.

tine reduces the blood supply to the

hands and ngers, increasing the risk

of vibration-related injury.

SKU 68128 For technical questions, please call 1-800-444-3353. Page 6

Wear suitable gloves to reduce the3.

vibration effects on the user.

Use tools with the lowest vibration4.

when there is a choice.

Include vibration-free periods each5.

day of work.

Grip tool with both hands as lightly as6.

possible (while still keeping safe con-

trol of it). Let the tool do the work.

To reduce vibration, maintain tool as7.

explained in this manual. If abnormal

vibration occurs, stop immediately.

SAVE THESE

INSTRUCTIONS.

SPECIFICATIONS

Maximum Air Pressure 90 PSI

Air Inlet 1/2” -14 NPT

Drive Size 1”

Maximum Speed* 3200 RPM / 557 BPM

(Blows Per Minute)

Average Air

Consumption 10 CFM @ 90 PSI

Recommended Min.

Air Hose 1/2” (Not Supplied)

Torque 2000 ft.-lb.

Speed Settings Three

* Maximum speed at stated maximum air pressure. Ex-

cess air pressure is hazardous and may cause the tool

to exceed stated maximum speed.

Recommended Min. Air Hose: 1/2” (Not Supplied)

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.

SKU 68128 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

Incorporate a lter, regulator with 1.

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.

Attach an air hose to the compres-2.

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.

The air hose must be long enough3.

to reach the work area with enough

extra length to allow free movement

while working.

Close the in-line safety valve be-4.

tween the compressor and the tool.

Turn on air compressor according to5.

manufacturer’s directions and allow it

to build up pressure until it cycles off.

Adjust the air compressor’s output 6.

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.

Inspect the air connections for leaks.7.

Repair any leaks found.

If the tool will not be used at this time,8.

release the Trigger, close the shut-off

valve, press the Trigger to discharge

SKU 68128 For technical questions, please call 1-800-444-3353. Page 8

trapped line pressure, and detach air

supply hose from the air supply.

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:

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.

For added stability, attach Side Han-1.

dle (5) to side of Hammer Case (4)

using Bolts (6) and Washers (7). .

Work Piece and Work Area Set Up

Designate a work area that is clean1.

and well-lit. The work area must not

allow access by children or pets to

prevent distraction and injury.

Route air hose along a safe route2.

to reach work area without creat-

ing a tripping hazard or exposing air

hose to possible damage. Also avoid

sharp bends and do not place items

on hose during use.

The air hose must be long enough3.

to reach the work area with enough

extra length to allow free movement

while working.

There must not be hazardous objects 4.

(such as utility lines) nearby that will

present a hazard while working.

General Operating Instructions

WARNING!1. Use only 1” Drive Impact

type sockets (not supplied).

If an automatic oiler is not used,2. 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.

Push and snap socket (not included)3.

onto Anvil (13).

This Impact Wrench can be used in4.

either Forward or Reverse direction.

To operate in Forward, turn the Direc-

tion Knob (33) under the housing to

the desired Forward speed.

NOTE: There are three torque settings

for the Forward direction. To tighten,

place the socket over the hex nut you

wish to tighten.

SKU 68128 For technical questions, please call 1-800-444-3353. Page 9

For Reverse, turn the Direction Knob5.

to the desired Reverse speed.

NOTE: There are three torque settings

for the Reverse direction. To loosen,

set the Regulator Knob to one of the

Reverse settings.

Hold the Side Handle rmly and place 6.

other hand around Handle (28). Gen-

tly squeeze the Trigger (49).

Place socket (not included) over7.

desired nut, hold handle rmly and

gently squeeze the Trigger.

If tool requires more force to8.

accomplish task in Forward or

Reverse setting, verify that the tool

receives sufcient, unobstructed

airow (CFM) and increase the

pressure (PSI) output of regulator up

to maximum air pressure rating of the

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.

When the nut is tightened or loos-9.

ened, release the Trigger. Use a

torque wrench to check the torque of

the tightened nut.

To prevent accidents, turn off tool,10.

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, and apply a thin coat of tool oil

to the anvil end. Store indoors out of

children’s reach.

SKU 68128 For technical questions, please call 1-800-444-3353. Page 10

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 leaking air occurs, have

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.

Note: These procedures are in addition to

the regular checks and maintenance

explained as part of the regular

operation of the air-operated tool.

Daily - Air Supply Maintenance:1.

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.

Quarterly (every 3 months) -2.

Tool Disassembly, Cleaning,

and Inspection: Have the internal

mechanism cleaned, inspected, and

lubricated by a qualied technician.

Store Impact Wrench in clean, dry3.

and safe location out of reach of

children.

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