Sunex tools Sx275b User manual

SX275B 1 Rev. 05/02/02

Operating Instructions • Warning Information • Parts Breakdown

Blows Per Minute ..................3,000

Bore ..................................11/16”

Stroke ................................2-5/8”

Air Inlet Thread ..............1/4" NPT

Hose Size ........................3/8” I.D.

SX275B

MEDIUM DUTY

AIR HAMMER

Avg. Air Consumption ..........4 cfm

Rec. Air Pressure ..90 psig (6.2bar)

Sound Level......................105 dBA

Length ................................6-3/4”

Shipping Weight............3-1/2 Lbs.

SPECIFICATIONS

ALWAYS READ

INSTRUCTIONS

BEFORE USING

POWER TOOLS

ALWAYS WEAR

SAFETY GOGGLES

WEAR HEARING

PROTECTION

AVOID

PROLONGED

EXPOSURE TO

VIBRATION

Some dust created by power sanding, sawing, grinding, drilling,

and other construction activities contains chemicals known 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

and other masonry products, and

• arsenic and chromium from

chemically-treated lumber.

Your risk from these 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 those dust masks that are

specially designed to filter out microscopic particles.

SX275B 2 Rev. 05/02/02

WARNING!

This Instruction Manual Contains Important

Safety Information.

READ THIS INSTRUCTION MANUAL

CAREFULLY AND UNDERSTAND ALL

INFORMATION BEFORE OPERATING THIS

TOOL.

• Always operate, inspect and maintain

this tool in accordance with American

National Standards Institute Safety Code

of Portable Air Tools (ANSI B186.1) and

any other applicable safety codes and

regulations.

• For safety, top performance and maximum

durability of parts, operate this tool at

90 psig 6.2 bar max air pressure with

3/8” diameter air supply hose.

• Always wear impact-resistant eye and

face protection when operating or

performing maintenance on this tool.

Always wear hearing protection when

using this tool.

• High sound levels can cause permanent

hearing loss. Use hearing protection as

recommended by your employer or

OSHA regulation.

• Keep the tool in efficient operating

condition.

• Operators and maintenance personnel

must be physically able to handle the

bulk, weight and power of this tool.

• Air under pressure can cause severe

injury. Never direct air at yourself or

others. Always turn off the air supply,

drain hose of air pressure and detach

tool from air supply before installing,

removing or adjusting any accessory

on this tool, or before performing any

maintenance on this tool. Failure to do

so could result in injury. Whip hoses can

cause serious injury. Always check for

damaged, frayed or loose hoses and

fittings, and replace immediately. Do not

use quick detach couplings at tool. See

instructions for correct set-up.

• Air powered tools can vibrate in

use. Vibration, repetitive motions or

uncomfortable positions over extended

periods of time may be harmful to your

hands and arms. Discontinue use of tool

if discomfort, tingling feeling or pain

occurs. Seek medical advice before

resuming use.

• Place the tool on the work before starting

the tool. Do not point or indulge in any

horseplay with this tool.

• Slipping, tripping and/or falling while

operating air tools can be a major cause

of serious injury or death. Be aware of

excess hose left on the walking or

work surface.

• Keep body working stance balanced and

firm. Do not overreach when operating

the tool.

• Anticipate and be alert for sudden

changes in motion during start up and

operation of any power tool.

• Do not carry tool by the hose. Protect the

hose from sharp objects and heat.

• Tool shaft may continue to rotate briefly

after throttle is released. Avoid direct

contact with accessories during and after

use. Gloves will reduce the risk of cuts

or burns.

• Keep away from rotating end of tool.

Do not wear jewelry or loose clothing.

Secure long hair. Scalping can occur

if hair is not kept away from tool and

accessories. Choking can occur if

neckwear is not kept away from tool

and accessories.

• Never use a chisel as a handstruck tool. They are

designed and heat treated to be used only in air

hammers. Select the correct shank and retainer for the

tool.

• Never use dull accessories. Never cool a hot accessory in

water as brittleness and early failure can result. Accessory

breakage or tool damage may result from prying. Take

smaller bites to avoid getting stuck.

• Do not lubricate tools with flammable or volatile liquids

such as kerosene, diesel or jet fuel.

• Don’t force tool beyond its rated capacity.

• Do not remove any labels. Replace any damaged labels.

• Use accessories recommended by Sunex Tools.

FAILURE TO OBSERVE THESE WARNINGS COULD RESULT IN INJURY.

SX275B 3 Rev. 05/02/02

SX275B

Medium Air Hammer

REF.

NO.

PART NO.

87301

275B02

275B03

275B07

275B08

275B09

275B10

275B12

275B13

275B14

275B15

275B16

275B17

275B18

275B19

QTY.

DESCRIPTION

Spring Retainer

Cylinder

Piston

Valve Disc

Valve Assembly

Handle

Trigger

O-Ring

Regulator

O-Ring

Valve Stem

Valve Ball

Valve Spring

Air Inlet

SX275B 4 Rev. 05/02/02

Nipple

Operating Instructions • Warning Information • Parts Breakdown

Air Supply...

Tools of this class operate on a wide range of air pressures. It is

recommended that air pressure of these tools measures 90 PSI

at the tool while running free. Higher pressure (over 90 psig;

6.2 bar) raises performance beyond the rated capacity of the

tool which will shorten the tool’s life because of faster wear and

could cause injury.

Always use clean, dry air. Dust, corrosive fumes and/or water

in the air line will cause damage to the tool. Drain the air tank

daily. Clean the air inlet filter screen on at least a weekly

schedule. The recommended hookup procedure can be

viewed in the above figure.

The air inlet used for connecting air supply, has standard 1/4"

NPT. Line pressure should be increased to compensate for

unusually long air hoses (over 25 feet). Minimum hose diameter

should be 3/8" I.D. and fittings should have the same inside

dimensions and be tightly secured.

Lubrication...

Lubricate the air motor daily with quality air tool oil. If no air

line oiler is used, run a teaspoon of oil through the tool. The oil

can be squirted into the tool air inlet or into the hose at the

nearest connection to the air supply, then run the tool.

Operation...

Always place a chisel in the hammer and hold the tool

down to the work before operating. Damage to the tool

or the retainer may result if this precaution is not followed.

The chisel retainers are not designed for complete safety

against accidental release of cutters or hammers. To avoid

injury, the throttle must never be depressed unless the

chisel is held firmly against the work place. When tool is

not in actual use, the chisel must be removed. During

operation, safety goggles should always be used to guard

against flying rust and chips. When using tool, regulate

the speed so that the chisel is not being driven out of the

cylinder. If piston is allowed to strike the cylinder wall,

internal damage will result.

To change chisel, pull back on spring hook and insert

chisel. Release spring hook.

To regulate air, turn air regulator knob out for maximum

air pressure and in for minimum.

Limited Warranty...

SUNEX INTERNATIONAL, INC. WARRANTS TO ITS CUSTOMERS THAT THE COMPANY’S SUNEX TOOLS®BRANDED

PRODUCTS ARE FREE FROM DEFECTS IN WORKMANSHIP AND MATERIALS.

Sunex International, Inc. will repair or replace its Sunex Tools®branded products which fail to give satisfactory service due to defective

workmanship or materials, based upon the terms and conditions of the following described warranty plans attributed to that specific product. This

product carries a ONE-YEAR warranty. During this warranty period, Sunex Tools will repair or replace at our option any part or unit which proves

to be defective in material or workmanship.

Other important warranty information...

This warranty does not cover damage to equipment or tools arising from alteration, abuse, misuse, damage and does not cover any repairs or

replacement made by anyone other than Sunex Tools or its authorized warranty service centers.The foregoing obligation is Sunex Tools’ sole

liability under this or any implied warranty and under no circumstances shall we be liable for any incidental or consequential damages.

Note: Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not

apply to you. Return equipment or parts to Sunex Tools, or an authorized warranty service center, transportation prepaid. Be

certain to include your name and address, evidence of the purchase date, and description of the suspected defect.

If you have any questions about warranty service, please write to Sunex Tools. This warranty gives you specific legal rights and you may also have

other rights which vary from state to state. Repair kits and replacement parts are available for many of Sunex Tools products regardless of whether

or not the product is still covered by a warranty plan.

Shipping Address: Sunex Tools • 315 Hawkins Rd. • Travelers Rest, SC 29690

Mailing Address: Sunex Tools • P.O. Box 4215 • Greenville, SC 29608

Sunex Tools SX275B User manual