Download pdf - Air Needle Scaler Model 1108

Air needle scAlerModel 1108

set up And OperAting instructiOns

Diagrams within this manual may not be drawn proportionally.

Due to continuing improvements, actual product may differ slightly from the product described herein.

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.

Copyright© 1997 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.

For technical questions or replacement parts, please call 1-800-444-3353.Manual revised 07i

Page �SKU 1108 For technical questions, please call 1-800-444-3353.

speciFicAtiOnsStroke 1-1/8”Blows per minute at 90 PSI 4600Overall Length 18”Air Consumption 4 CFMAir Inlet ¼” NPT

sAVe tHis MAnuAlYou will need the manual for the safety warnings and cautions, assembly instructions,

operating procedures, maintenance procedures, trouble shooting, parts list, and diagram. Keep your invoice with this manual. Write the invoice number on the inside of the front cover. Keep both this manual and your invoice in a safe, dry place for future reference.

sAFety wArning & cAutiOnswArning: When using pneumatic equipment, basic safety precautions should always be

followed to reduce the risk of personal injury and hazards due to over pressurization. reAd All instructiOns BeFOre using tHis tOOl!

KEEP WORK AREA CLEAN. Cluttered areas invite injuries.

OBSERVE WORK AREA CONDITIONS. Do not use tools in damp, wet, or poorly lit loca-tions. Don’t expose to rain. Keep work area well lit. Do not use electrically powered air compressors in the presence of flammable gases or liquids.

KEEP CHILDREN AWAY. Children must never be allowed in the work area. Do not let them handle machines, tools, or hoses.

STORE IDLE EQUIPMENT. When not in use, tools must be locked up in a dry location to inhibit rust. Always lock up tools and keep out of reach of children.

DO NOT FORCE THE TOOL. It will do the job better and more safely at the rate for which it was intended. Do not use inappropriate attachments in an attempt to exceed the tool’s capacities.

USE THE RIGHT TOOL FOR THE JOB. Do not attempt to force a small tool or attach-ment to do the work of a larger industrial tool. Do not use a tool for a purpose for which it was not intended.

DRESS PROPERLY. Do not wear loose clothing or jewelry as they can be caught in moving parts. Non-skid footwear is recommended. Wear restrictive hair covering to con-tain long hair.

USE EYE AND EAR PROTECTION. Always wear ANSI approved chemical splash gog-gles when working with chemicals. Always wear ANSI approved impact safety goggles at other times. Wear a full face shield if you are producing metal filings or wood chips. Wear an ANSI approved dust mask or respirator when working around metal, wood, and chemical dusts and mists.

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Page 3SKU 1108 For technical questions, please call 1-800-444-3353.

DO NOT ABUSE THE POWER CORD. Do not yank compressor’s cord to disconnect it from the receptacle. Do not carry tools by the cord.

DO NOT OVERREACH. Keep proper footing and balance at all times. Do not reach over or across running machines.

MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for better and safer perfor-mance. Follow instructions for lubricating and changing accessories. Inspect compres-sor’s cord periodically and, if damaged, have them repaired by an authorized technician. Inspect all hoses for leaks prior to use. The handles must be kept clean, dry, and free from oil and grease at all times.

REMOVE ADJUSTING KEYS AND WRENCHES. Make it a habit to check that keys and adjusting wrenches are removed from the tool or machine work surface before plugging it in.

AVOID UNINTENTIONAL STARTING. Do not carry any tool with your finger on the trig-ger, whether it is connected to the compressor or not.

STAY ALERT. Watch what you are doing, use common sense. Do not operate any tool when you are tired.

CHECK DAMAGED PARTS. Before using any tool, any part that appears damaged should be carefully checked to determine that it will operate properly and perform its intended function. Check for alignment and binding of moving parts; any broken parts or mounting fixtures; and any other condition that may affect proper operation. Any part that is damaged should be properly repaired or replaced by a qualified technician. Do not use the tool if any switch does not turn on and off properly.

REPLACEMENT PARTS AND ACCESSORIES. When servicing, use only identical replacement parts. Use of any other parts will void the warranty. Only use accessories intended for use with this tool.

DO NOT OPERATE TOOL IF UNDER THE INFLUENCE OF ALCOHOL OR DRUGS. Read warning labels on prescriptions to determine if your judgment or reflexes are im-paired while taking drugs. If there is any doubt, do not operate the tool.

DRAIN COMPRESSOR EVERY DAY. Do not allow moisture to build up inside the com-pressor. Do not allow compressor to sit pressurized for longer than one hour.

MAKE SURE ALL EQUIPMENT IS RATED TO THE APPROPRIATE CAPACITY. Make sure that regulator is set at least 10 PSI lower than the lowest rated piece of equipment you are using.

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unpAcKingYour Needle Scaler comes partially assembled. If any parts are missing or broken,

please call Harbor Freight Tools at the number on the cover of this manual.

description QuantityScaler Assembly 1Needle Assembly 1

generAlYour Needle Scaler is perfect for removing weld flux, rust, scale, paint, cement, and

other residues from hard, durable, irregular surfaces. The Needle Scaler is not suitable for soft surfaces.

AsseMBlyYour Needle Scaler comes partially assembled. To complete assembly, follow the steps

below.

It is possible that during shipment some of the NEEDLES (#46) could have fallen out of the NEEDLE HOLDER (#47). If you find some of the NEEDLES have fallen out, remove the NEEDLE HOLDER, NEEDLES, and SPRING (#48) from the NEEDLE TUBE (#49) by tipping the NEEDLE TUBE back. Catch the loose NEEDLES.

Count the number of NEEDLES you have. You should have 19 NEEDLES. If you are missing NEEDLES, call Harbor Freight Tools. If any of the NEEDLES are bent, do not reuse them. Obtain replacement NEEDLES from Harbor Freight Tools.

Insert the NEEDLES into the NEEDLE HOLDER. Insert the small end of the NEEDLES into the larger holes of the NEEDLE HOLDER. The NEEDLES should sit flush with the top of the NEEDLE HOLDER.

Slide the SPRING over the NEEDLES.

Slide the Needle Assembly into the NEEDLE TUBE.

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Page �SKU 1108 For technical questions, please call 1-800-444-3353.

Barrel Assembly(#40)

Driver Retainer(#38)

Needle TubeSlit (#49)Figure 1 -- Assembly

Line up the DRIVER RETAINER (#38) with the slit in the NEEDLE TUBE. Insert the BARREL ASSEMBLY (#40) into the NEEDLE TUBE as shown in Figure 1.

Highest Setting

Middle Setting

Lowest Setting

Figure 2 -- Setting the Force of the ScalerPush the BARREL ASSEMBLY against the SPRING and compress it until the DRIVER RETAINER falls into the first notch (lowest setting) in the NEEDLE TUBE as shown in Figure �.

You may choose to insert the DRIVER RETAINER into the first or third notches, depend-ing on your needs. The further the BARREL ASSEMBLY is inserted into the NEEDLE TUBE, the stronger the scaling action becomes. Place the DRIVER RETAINER into the second or third notches only when unsatisfactory results are obtained from use in the first notch.

Remove the plastic cap from the HOSE ADAPTOR (#9) using a small standard screw-driver.

You will need a union fitting (sold separately) to connect the Needle Scaler to your air compressor. It is also recommended that you purchase an Air Coupler as it allows quick-coupling action when using many air tools with one air compressor. Your Needle Scaler is ready for use.

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OperAtiOnsetup

Frequent, but not excessive, lubrication is required for best performance. Oil added through the airline connection will lubricate internal parts. An automatic airline oiler is recom-mended but oil may be added manually before every operation or after about 1 hour of continu-ous use. Only a few drops of oil at a time are necessary. Too much oil will collect inside the tool and be blown out during the exhaust cycle. Only use pneuMAtic tOOl Oil. Do not use detergent oil or additives as these lubricants will cause accelerated wear to the seals in the tool.

Dirt and water in the air supply are major causes of pneumatic tool wear. Use a filter/oiler for better performance and longer life. The filter must have adequate flow capacity for the specific application. Consult the manufacturer’s instructions for proper maintenance of your filter.

Needlescaler

Figure 3 -- Airline Oiler AssemblyThe connector on the tool must not hold pressure when the air supply is disconnected.

If the wrong fitting is used, the tool can remain charged with air after being disconnected and still be able to drive a fastener. See Figure 3 for the recommended accessories and connection order.

use

Set the compressor’s pressure regulator to 90 PSI. Do not set the compressor’s outlet regulator over 90 PSI.

Connect the Needle Scaler to the air compressor’s hose. If leaking is detected, discon-nect the air hose and repair before use.

Grip the Needle Scaler with both hands. Place one hand on the NEEDLE TUBE (#49) and the other hand on the BACKHEAD (#1) for best con-trol of the tool.

Identify the area you wish to remove residue from.

Press the LEVER (#7) to operate the Needle Scaler. Make sure the NEEDLES (#46) are not touching any surface before you turn the Needle Scaler on.

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wArningKeep all body parts clear of

the needles while the NEEDLE SCALER is connected to the air

hose.

wArningKeep all body parts clear of

the needles while the NEEDLE SCALER is connected to the air

hose.


MetallicWorkSurface

Figure 4 -- OperationPlace the vibrating NEEDLES on the surface residue. Move the Needle Scaler around in the area you wish to remove residue from as shown in Figure 4.

Keep a light pressure on the Needle Scaler while in use. Do not apply heavy pressure as damage to the surface area may result.

If the Needle Scaler will not remove the residue from the surface even after repeated brief attempts on the highest setting, do not continue attempts. Use another method to remove the residue.

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cAutiOnDo not hold the Needle Scaler in any area for more than a few

seconds. Damage to the surface may occur.

cAutiOnDo not hold the Needle Scaler in any area for more than a few

seconds. Damage to the surface may occur.


MAintenAnceIt is recommended that you use an Airline Oiler in combination with this tool as described

on page 6. If you are not using an Airline Oiler, apply two drops oil inside the HOSE ADAPTOR (#9) before use and once every hour during continuous use. Only use pneuMAtic tOOl Oil.

After use, wipe down your Needle Scaler. Check the exposed NEEDLES (#46) for any bent or broken NEEDLES. If any are found, refer to AsseMBly and replace immedi-ately before future use.

Additional lubrication points

Throttle Valve(#3)

(underneath lever)

Lever Pin(#8)

Lever(#17)

Figure 5 -- Lubrication PointsApply a drop of oil to the THROTTLE VALVE (#3), LEVER (#7) and Lever PIN (#8) as shown in Figure �.

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pleAse reAd tHe FOllOwing cAreFullyTHE 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 listitem part Q’ty

1 730�13 Backhead� 7�9�91 O-Ring3 430�14 Throttle Valve4 730�1� Spring� 100836� Gasket6 730�16 Valve Cap7 730�17 Lever8 7�9�38 Pin9 7�9747 Hose Adapter

10 7�9�97 Locking Ring�8 730�18 Alignment Shim�9 7�9608 Fear Valve Block30 101��91 Pin (�)31 7�9604 Valve

item part Q’ty3� 7�9606 Front Valve Block33 730�19 Piston3� 731008 Barrel Sleeve36 731009 Nose37 731010 Key38 730��0 Driver Retainer39 730��1 Retainer Buffer40 730��3 Barrel Assy (incl: 3�,36,37)41 730�� Retainer Clip4� 730��4 Needle Driver46 730�80 Needle (19)47 730�� Needle Holder48 730��6 Spring49 730��7 Needle Tube


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.

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