Central Pneumatic 66902 Installation manual

2-IN-1 FINISH NAILER/STAPLER

Model

66902

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 improve-

ments, 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.

Revised Manual 09l

SKU 66902 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 66902 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 Trigger (42) is off before

connecting to the air supply. Do not

carry the tool with your nger on the

trigger or connect the tool to the air

supply with the trigger on.

Do not overreach. Keep properd.

footing and balance at all times.

Proper footing and balance enables

better control of the tool in unexpect-

ed situations.

e. 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.

f. Always wear eye protec-

tion. Wear ANSI-ap-

proved safety goggles.

g. Always wear hearing

protection when using

the tool. Prolonged expo-

sure to high intensity noise

is able to cause hearing loss.

Do not attach the hose or tool toh.

your body. Attach the hose to the

structure to reduce the risk of loss of

balance if the hose shifts.

Always assume that the tool con-i.

tains fasteners. Do not point the tool

toward yourself or anyone whether it

contains fasteners or not.

WARNING – Do not re fastener on j.

top of another fastener. This is able

to cause the fastener to be deected

and hit someone, or cause the tool to

react and result in a risk of injury to

persons.

WARNING – Remove nger from k.

the Trigger when not driving fas-

teners. Never carry the tool with

nger on trigger, the tool is able to re

a fastener.

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.

does not turn the tool on or off.

Any tool that cannot be controlled

SKU 66902 For technical questions, please call 1-800-444-3353. Page 4

with the trigger is dangerous and

must be repaired.

Disconnect the tool from the aird.

source before making adjust-

ments, doing tool maintenance,

clearing jams, touching the safety,

leaving work area, loading, or un-

loading the tool. Such precautionary

measures reduce the risk of injury to

persons.

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 prop-

erly maintained tool is more efcient

and reduces the risk of binding and 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.

Use only those fasteners listedi.

in the Accessories section of this

manual. Fasteners not identied for

use with this tool by the tool manu-

facturer are able to result in a risk

of injury to persons or tool damage

when used in this tool.

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 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.

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.

SKU 66902 For technical questions, please call 1-800-444-3353. Page 5

SYMBOLS AND

SPECIFIC SAFETY

INSTRUCTIONS

Symbol Denitions

Symbol Property or statement

PSI Pounds per square inch of pressure

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

WARNING marking concerning Risk

of Eye Injury. Wear ANSI-approved

eye protection.

Warning marking concerning Risk of

Puncture Injury. Wear heavy-duty

work gloves.

Read the manual before set-up and/

or use.

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

Operators and others in work area1.

MUST wear ANSI-approved safety

goggles with side shields during

use. The employer is responsible to

enforce use of eye protection by the

operator and others in the work area.

Keep ngers away from Trigger 2.

when not driving fasteners to

avoid accidental ring.

Always assume the tool contains3.

fasteners.

Do not point the tool toward yourself4.

or anyone whether it contains fasten-

ers or not.

Do not actuate the tool unless the5.

tool is placed rmly against the work-

piece.

Respect tool as a working implement.6.

No horseplay. This tool is not a toy7.

and can be deadly if misused.

Do not load the tool with fasteners8.

when any one of the operating con-

trols is activated.

Do not remove, tamper with, or other-9.

wise cause the tool operating controls

to become inoperable.

Do not operate the tool if any portion10.

of the tool operating controls is inop-

erable, disconnected, altered, or not

working properly.

Disconnect the tool from the power11.

source when:

Unattended.a.

Performing any maintenance orb.

repair.

Clearing a jam.c.

Moving the tool to a new location.d.

The written approval of the tool man-12.

ufacturer must be obtained prior to

making any modications to the tool.

Refer to the tool maintenance instruc-13.

tions for detailed information on the

proper maintenance of the tool.

SKU 66902 For technical questions, please call 1-800-444-3353. Page 6

Fire fasteners into an appropriate14.

work surface only. Do not attempt to

re fasteners into surfaces too hard

to penetrate. Do not drive fasteners

on top of other fasteners, or at too

steep of an angle. Fasteners can

ricochet causing personal injury.

Do not re fasteners too close to the 15.

edge of a workpiece. They may split

the workpiece and y free, causing

personal injury.

Transport Tool safely. Always dis-16.

connect air supply when moving the

tool. Carry the tool by the handle and

avoid contact with the trigger.

Hold tool away from head and body.17.

During operation the Tool may kick

back causing injury.

Do not re fasteners into a workpiece 18.

that has people, utility lines, or other

objects behind or inside it.

Keep balance while using this tool.19.

Keep area below clear if working in a

high location, and secure air hose to

prevent falls from bystanders acci-

dentally pulling on it.

Obey the manual for the air compres-20.

sor used to power this tool.

Install in-line shutoff valve to allow im-21.

mediate control over air supply in an

emergency, even if hose is ruptured.

Do not engrave or stamp anything22.

into the housing to prevent weaken-

ing of the housing.

WARNING: Some dust created by23.

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 components24.

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.)

The warnings and precautions dis-25.

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.

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

SKU 66902 For technical questions, please call 1-800-444-3353. Page 7

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.

Wear suitable gloves to reduce the3.

vibration effects on the user.

Use tools with the lowest vibration4.

when there is a choice between dif-

ferent processes.

Include vibration-free periods each5.

day of work.

Grip tool as lightly as possible (while6.

still keeping safe control 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.

FUNCTIONAL DESCRIPTION

Specications

Air Pressure

Range 75-90 PSI

Maximum Air

Pressure 90 PSI

Air Inlet 1/4” -18 NPT

Average Air

Consumption 6-8 SCFM

Fastener

Capacity

100 Nails/Staples:

T-Head 16-Gauge Brad Nails, 3/4” -

2” L; 1/4” 18-Gauge Crown Narrow

Gauge Staples, 1/2” - 1-1/2” L

Components and Controls

Safety - Also called the workpiece contact,

the safety helps prevent the tool from ring

unless it is pressed against an object.

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.

Magazine

Trigger

Air Inlet

Safety

SKU 66902 For technical questions, please call 1-800-444-3353. Page 8

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 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.

Air Supply

TO PREVENT

EXPLOSION:

Use only clean, dry, regulated,

compressed air to power tool.

Do not use oxygen, carbon

dioxide, combustible gases,

or any other bottled gas as a

power source for this tool.

1. Incorporate an in-line oiler, shut-off

valve, regulator with pressure gauge,

and lter for best service, as shown in

the diagram above. An in-line shut-

off valve is an important safety

device because it controls the air

supply even if the air hose is rup-

tured.

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

components, such as a connector,

air hose 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.

Release the tool’s trigger.4.

Close the in-line safety valve be-5.

tween the compressor and the tool.

Turn on the air compressor according6.

to the manufacturer’s directions and

allow it to build up pressure until it

cycles off.

SKU 66902 For technical questions, please call 1-800-444-3353. Page 9

Adjust the air compressor’s output 7.

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.

The air pressure setting must not ex-8.

ceed job site regulations/restrictions.

The air pressure setting must not

exceed 90 PSI when being used with

work pieces that have a thickness of

less than 1-3/4”.

Inspect the air connections for leaks.9.

Repair any leaks found.

If the tool will not be used at this10.

time, turn off and detach the air sup-

ply, safely discharge any residual air

pressure, and release the trigger 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.

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 injury and distraction.

Route the air hose along a safe route2.

to reach the work area without creat-

ing 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.

Secure loose workpieces using3.

clamps (not included) to prevent

movement while working.

There must not be hazardous ob-4.

jects (such as utility lines or foreign

objects) nearby that will present a

hazard while working.

Full Sequential Safety Trip

Mechanism Denition

This tool has a full sequential safety

trip mechanism, which is designed to

prevent inadvertent ring. The tool should

only re if the Safety Nosepiece is pressed

against the workpiece prior to pulling the

Trigger. It should only re again if both

Trigger and Safety Nosepiece are re-

leased rst. The Tool should not re if the

Safety Nosepiece is not pressed against

the workpiece.

Rev 09d

SKU 66902 For technical questions, please call 1-800-444-3353. Page 10

Full Sequential Safety Trip

Mechanism Testing Procedure

TO PREVENT

SERIOUS INJURY

FROM ACCIDENTAL

OPERATION:

Empty the tool before this

procedure. Point the tool at a

piece of scrap wood when

testing.

Disconnect1. the tool from the air sup-

ply.

Empty the Magazine of fasteners.2.

Check that the Trigger and the Safety3.

Nosepiece move freely, without stick-

ing.

Connect the air supply to the tool and4.

set within the Operating Air Pressure

indicated on the Specication chart.

Test the tool by pressing the Safety5.

Nosepiece against the workpiece

without pulling the Trigger. The Tool

must not cycle (re). If it cycles

(res), stop immediately and have it

repaired by a qualied service techni-

cian.

Hold the tool away or off of the work-6.

piece. The Safety Nosepiece should

return to its original position. Squeeze

the Trigger. The tool must not cycle

(re). If the tool res, stop immedi-

ately and have it repaired by a quali-

ed service technician.

Press the Safety Nosepiece against7.

the workpiece and squeeze the

Trigger. The tool must cycle (re)

only once. Release the Trigger and

squeeze it again. The tool must

not cycle (re). With the Trigger

held, carefully lift the tool and press

it against the workpiece again. The

tool must not cycle (re). If it fails

to perform in the manner explained in

bold, have it repaired by a qualied

service technician.

Loading the Tool

TO PREVENT

SERIOUS INJURY

FROM ACCIDENTAL

OPERATION, BEFORE

LOADING:

• Wear ANSI-approved safety

goggles with side shields.

Other people in the work area

must also wear ANSI-approved

impact safety goggles.

Release the trigger.•

Detach the air supply.•

Attempt to re the Tool into •

a piece of scrap wood to

ensure that it is disconnected

and is incapable of ring any

fasteners.

TO PREVENT

SERIOUS INJURY

FROM ACCIDENTAL

OPERATION:

Release the trigger, detach the

air supply, and safely

discharge any residual air

pressure in the tool before

loading. Keep the Tool

pointed away from yourself

and others at all times. Do

not load fasteners with the

Trigger or Safety depressed.

Depress the Click Lever (74) to1.

release the spring-loaded Magazine

(67) from the Magazine Cover (61).

Slide the Magazine out.2.

Rev 09d

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