PROPOINT 8348674 User manual

V1.0 8348674
Please read and understand all instructions before use. Retain this
manual for future reference.
AIR NEEDLE SCALER
USER MANUAL

8348674 AIR NEEDLE SCALER V1.0
2 For technical questions call 1-800-665-8685
SPECIFICATIONS
Air Consumption @ 90 PSI 2.5 CFM
Stroke Length 1-18 in.
Impact Rate 4,600 BPM
Needle Size 3 mm
Max. Pressure 120 PSI
Air Inlet 1/4 in. NPT
Exhaust Style Front
Recommended Air Hose Size 3/8 in.
INTRODUCTION
Ideal for quick and easy rust, scale and paint removal. Removes
weld flux, rust, scale, paint, cement and other residues from
surfaces for surface preparation applications.
The straight design handles areas with limited access. The
needle scaler has 19 high wear resistant steel needles, a heat
treated barrel and piston for extended tool life. It has a lever-
lock retainer.
SAFETY
WARNING! Read and understand all instructions before using
this tool. The operator must follow basic precautions to reduce
the risk of personal injury and/or damage to the equipment.
Keep this manual for safety warnings, precautions, operating or
inspection and maintenance instructions.
AIR NEEDLE SCALER

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HAZARD DEFINITIONS
Please familiarize yourself with the hazard notices found in this
manual. A notice is an alert that there is a possibility of property
damage, injury or death if certain instructions are not followed.
DANGER! This notice indicates an immediate and specific
hazard that will result in severe personal injury or death if the
proper precautions are not taken.
WARNING! This notice indicates a specific hazard or unsafe
practice that could result in severe personal injury or death if
the proper precautions are not taken.
CAUTION! This notice indicates a potentially hazardous
situation that may result in minor or moderate injury if proper
practices are not taken.
NOTICE! This notice indicates that a specific hazard or unsafe
practice will result in equipment or property damage, but not
personal injury.
WORK AREA
1. Operate in a safe work environment. Keep your work area
clean, well-lit and free of distractions.
2. Keep anyone not wearing the appropriate safety
equipment away from the work area.
3. Store tools properly in a safe and dry location. Keep tools
out of the reach of children.
4. Do not install or use in the presence of flammable gases,
dust or liquids.
PERSONAL SAFETY
WARNING! Wear personal protective equipment approved by
the Canadian Standards Association (CSA) or American
National Standards Institute (ANSI).

8348674 AIR NEEDLE SCALER V1.0
4 For technical questions call 1-800-665-8685
PERSONAL PROTECTIVE EQUIPMENT
1. Always wear impact safety goggles that provide front and
side protection for the eyes. Eye protection equipment
should comply with CSA Z94.3-07 or ANSI Z87.1 standards
based on the type of work performed.
2. Wear the appropriate type of full-face shield in addition to
safety googles, as the work can create chips, abrasive or
particulate matter.
3. Wear gloves that provide protection based on the work
materials or to reduce the effects of tool vibration.
3.1 Do not wear gloves when operating a tool that can
snag the material and pull the hand into the tool.
4. Wear protective clothing designed for the work
environment and tool.
5. Non-skid footwear is recommended to maintain footing
and balance in the work environment.
6. Wear a NIOSH approved respirator when working on
materials that produce hazardous fumes, dust or
particulate matter.
7. This tool can cause hearing damage. Wear hearing
protection gear with an appropriate Noise Reduction
Rating to withstand the decibel levels.
PERSONAL PRECAUTIONS
Control the tool, personal movement and the work
environment to avoid personal injury or damage to the tool.
1. Do not operate any tool when tired or under the influence
of drugs, alcohol or medications.
2. Avoid wearing clothes or jewelry that can become
entangled with the moving parts of a tool. Keep long hair
covered or bound.
3. Do not overreach when operating the tool. Proper footing
and balance enables better control in unexpected situations.

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4. Support the workpiece or clamp it to a stable platform.
Holding the workpiece by hand or against your body may
lead to personal injury.
5. Securely hold this tool using both hands. Using a tool with
only one hand can result in loss of control.
SPECIFIC SAFETY PRECAUTIONS
WARNING! DO NOT let comfort or familiarity with product
(gained from repeated use) replace strict adherence to the
tool safety rules. If you use this tool unsafely or incorrectly,
you can suffer serious personal injury.
1. Use the correct tool for the job. This tool was designed for
a specific function. Do not modify or alter this tool or use it
for an unintended purpose.
2 Avoid unintentional starts. Be sure that the throttle/ignition
switch is in neutral or OFF position when not in use and
before connecting it to any air source. Do not carry the tool
with fingers near or on the lever.
AIR TOOL PRECAUTIONS
1. Inspect the tool's air hose for cracks, fraying or other faults
before each use. Discontinue use if the air hose is damaged or
hissing is heard from the air hose or connectors, while
operating the tool. Replace the defective component/air hose.
2. Do not allow people, mobile equipment or vehicles to pass
over the unprotected air hose. Position the air hose away
from high traffic areas, in a reinforced conduit or place planks
on both sides of the air hose to create a protective trench.
3. Prevent damage to the air hose by observing the following:
3.1 Never carry the tool by the air hose.
3.2 Keep the air hose behind the tool and out of the tool's
work path.
3.3 Keep the air hose away from heat, oil, sharp edges or
moving parts.

8348674 AIR NEEDLE SCALER V1.0
6 For technical questions call 1-800-665-8685
3.4 Do not wrap the air hose around the tool as sharp
edges may pierce or crack the air hose. Coil the air
hose when storing.
4. A damaged or disconnected air hose under pressure may
whip around and inflict personal injury or damage the work
area. Secure the compressor's air hose to a fixed or
permanent structure with clamps or cable ties.
5. Install an in-line shutoff valve or regulator to allow
immediate control over the air supply in an emergency,
even if a hose is ruptured.
6. Check the manufacturer’s maximum pressure rating for air
tools and accessories. Compressor outlet pressure must be
regulated so as to never exceed the maximum pressure
rating of the tool.
VIBRATION PRECAUTIONS
1. This tool vibrates during use. Repeated or long-term
exposure to vibration may cause temporary or permanent
physical injury, particularly to the hands, arms and shoulders.
2. Anyone using vibrating tools regularly or for an extended
period should first be examined by a doctor and then have
regular medical check-ups to ensure medical problems are
not being caused by or worsened from tool use.
3. If you feel any medical symptoms related to vibrations
(such as tingling, numbness, and white or blue fingers),
seek medical attention as soon as possible.
4. DO NOT use this tool if one of the following applies:
• Pregnant
• Impaired blood circulation to the hands
• Past hand injuries
• Nervous system disorders
• Diabetes
• Raynaud's Disease

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5. Do not smoke while operating the tool. Nicotine reduces
the blood flow to the hands and fingers, increasing the risk
of vibration-related injury.
6. Wear suitable gloves to reduce the effects of vibration.
7. Use the tool with the least amount of vibration, when there
is a choice between different processes.
8. Do not use for extended periods. Take frequent breaks
when using this tool.
9. Let the tool do the work. Grip the tool as lightly as possible
(while still keeping safe control of it).
10. To reduce vibrations, maintain the tool as explained in this
manual. If abnormal vibrations occur, stop using this tool
immediately.
UNPACKING
WARNING! Do not operate the tool if any part is missing.
Replace the missing part before operating. Failure to do so
could result in a malfunction and personal injury.
Remove the parts and accessories from the packaging and inspect
for damage. Make sure that all items in the parts list are included.
Contents:
• Needle Scaler
• Needles
ASSEMBLY & INSTALLATION
Numbered references in parenthesis (#1) refer to the included
Parts List.
INSTALL AIR CONNECTOR
Prepare a standard 1/4 in. NPT male air connector (sold
separately) for use with your tool.

8348674 AIR NEEDLE SCALER V1.0
8 For technical questions call 1-800-665-8685
1. Wrap the external threads of the male connector with
sealant tape.
1.1 Wrap tape in a clockwise direction so it will not unravel.
1.2 Do not tape all the threads. Leave several leading
threads unwrapped for easier alignment.
2. Screw the connector into the tool's air inlet and tighten
with a wrench until snug.
3. Run the compressor at a low volume and check the
connection for air leaks. Do not use the tool until all air
leaks are repaired or the faulty component is replaced.
IMPORTANT! Vibration may cause failure if a quick coupler is
connected directly to the air tool. To overcome this, connect a
leader hose to the tool. A quick coupler may then be used to
connect the leader hose to the air line hose.
OPERATION
1. Grip the tool with both hands. Place one hand on the
needle housing (#27) and the other hand on the tool body.
2. Press the lever (#7) to operate. Make sure the needles (#24)
are not touching any surface when you turn on the tool.
3. Place the vibrating needles on the work surface. Move the
needle scaler around in the area from which you wish to
remove the material.
4. Keep only light pressure on the tool while in use. Do not
apply heavy pressure as it may damage the surface area.
5. Do not hold the needle scaler in any one area of the work
surface for more than a few seconds. Longer intervals could
damage the surface.
6. If the needle scaler will not remove the material from the
surface after a few short attempts, do not continue. Use
another method to remove the material.

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CARE & MAINTENANCE
1. Maintain the tool with care. A tool in good condition is
efficient, easier to control and will have fewer problems.
2. Inspect the tool components periodically. Repair or replace
damaged or worn components. Only use identical
replacement parts when servicing.
3. Follow instructions for lubricating and changing accessories.
4. Only use accessories intended for use with this tool.
5. Keep the tool handles clean, dry and free from oil/grease at
all times.
6. Maintain the tool’s labels and name plates. These carry
important information. If unreadable or missing, contact
Princess Auto Ltd. for replacements.
WARNING! Only qualified service personnel should repair the
tool. An improperly repaired tool may present a hazard to the
user and/or others.
CLEANING
Keep the tool clean. Wipe the tool with a clean cloth and
periodically blow out all areas with compressed air. If
compressed air is not available, use a brush to remove dust
from all areas. Do not use harsh chemicals or solvents to clean
the tool.
AIR TOOL LUBRICATION
NOTICE! Only use air tool oil to lubricate the tool. Other
lubricants are not suitable and will damage the tool or cause
a malfunction during use.
NOTICE! Never use a penetrating oil to lubricate an air tool.
Penetrating oil acts as a solvent that will dissolve the tool’s
grease packing and may damage the o-rings, causing the tool
to seize or malfunction.

8348674 AIR NEEDLE SCALER V1.0
10 For technical questions call 1-800-665-8685
1. All air tools have an internal coating of grease to prevent
corrosion during shipping and storage. Remove this grease by
adding a generous amount of air tool oil in the air inlet and
then run the tool under no load until the exhaust is clear.
2. Manually add a drop or two of air tool oil into the tool’s
male connector before each use and after every hour of
continuous use. The tool will not work properly without
lubrication and parts will wear prematurely.
3. Avoid adding too much air tool oil as this can cause
premature power loss and eventual tool failure. A qualified
technician will need to take the tool apart and clean out the
excess oil.
4. Apply a generous amount of air tool oil to the tool before
storing it for an extended period of time (overnight,
weekend, etc.). Run the tool for approximately 30 seconds
to ensure the oil is evenly distributed throughout the tool.
Store it in a clean and dry location.
STORAGE
When not in use for an extended period, apply a thin coat of
lubricant to the steel parts to avoid rust. Remove the lubricant
before using the tool again.
DISPOSAL
Recycle a tool damaged beyond repair at the appropriate facility.
Contact your local municipality for a list of disposal facilities or
by-laws for electronic devices, batteries, oil or other toxic liquids.
IMPORTANT! DO NOT pollute the environment by allowing
uncontrolled discharge of waste oil.

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TROUBLESHOOTING
Visit a Princess Auto Ltd. location for a solution if the tool does
not function properly or parts are missing. If unable to do so,
have a qualified technician service the tool.
PROBLEMS
POSSIBLE CAUSES
SUGGESTED SOLUTIONS
Tool runs at
normal
speed, but
loses power
under load.
Motor parts worn. 1. Have a qualified technician
service the tool.
2. Replace tool or parts.
Lack of air tool oil. Pour air tool oil into air inlet
per instructions.
Tool runs
slowly. Air
flows slightly
from exhaust.
Motor parts jammed
with dirt particles.
OR
Airflow blocked by
dirt.
1. Check air inlet filter for
blockage.
2. Pour air tool lubricating oil
into air inlet as per
lubrication instructions for
clearing shipping grease.
3. Operate tool in short bursts
to clear debris.
4 If tool still jammed, clean
tool and lubricate per
lubrication instructions.
Air regulator in
closed position.
Open the air regulator to
desired airflow.
Excessive air tool oil
in tool or build of
shipping grease.
Run tool under no load for
short periods of time until
exhaust clears.
Tools will not
run. Air flows
freely from
exhaust.
Damage or
excessive wearing of
internal parts.
1. Have a qualified technician
service the tool.
2. Replace tool or parts.
Piston is jammed. 1. Remove chisel and spring
retainer.
2. Push punch through hole in
the cylinder until resting
against the piston.

8348674 AIR NEEDLE SCALER V1.0
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PROBLEMS
POSSIBLE CAUSES
SUGGESTED SOLUTIONS
Tools will not
run. Air flows
freely from
exhaust.
Piston is jammed. 3. Sharply strike punch with
a hammer to loosen
piston.
4. If still jammed,
disassemble barrel from
housing and use punch to
push piston through the
rear of barrel.
5. Clean the barrel and
piston. Remove any rust.
6. Reassemble.
Tool will not
shut off.
1. Throttle valve
o-ring dislodged
from seat inlet
valve.
2. Trigger mechanism
jammed or dirty.
1. Replace throttle valve
o-rings.
2. Clean trigger mechanism
and lubricate.
Loss of
power or
erratic
performance.
Excessive drain on the
air hose. Incorrect size
or type of hose
connectors.
Check the air hose and
confirm the hose fitting is
correct for the inlet bushing.
Moisture or restriction
in the air hose/tank
Depressurize system and
drain tank and air hose of
water.
Air compressor has
insufficient flow.
Ensure tool is connected to
a compressor with a rate
flow that matches the tool.

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PARTS BREAKDOWN
PARTS LIST
# DESCRIPTION QTY
1 Backhead 1
2
O-ring
1
3 Throttle valve 1
3-1
O-ring
1
4 Spring 1
5 O-ring 1
6 Valve cap 1
7 Lever 1
8 Spring pin 1
9
Hose adapter
1
10 Lock ring 1
28 Alignment shim 1
29 Rear block valve 1
30
Pin
2
31 Valve 1

8348674 AIR NEEDLE SCALER V1.0
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#
DESCRIPTION
QTY
32 Front valve block
33
Piston
1
35 Barrel sleeve 1
36
Nose
1
37 Key 1
38
Drive retainer
1
39 Retainer buffer 1
40
Barrel
1
41 Retainer cap 1
45
Needle driver
1
46 3 mm needle set 19
47
3 mm needle holder
1
48 Spring 1
49
Front nosepiece
1

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8348674 AIR NEEDLE SCALER V1.0
16 For technical questions call 1-800-665-8685

V 1,0 8348674
Vous devez lire et comprendre toutes les instructions avant d'utiliser
l'appareil. Conservez ce manuel afin de pouvoir le consulter plus tard.
DÉROUILLEUR-DÉTARTREUR
PNEUMATIQUE
MANUEL D'UTILISATEUR

8348674 DÉROUILLEUR-DÉTARTREUR PNEUMATIQUE V 1,0
2 En cas de questions techniques, appelez le 1-800-665-8685
SPÉCIFICATIONS
Consommation d'air à 90 lb/po carré 2,5 CFM
Longueur de course 1 1/8 po
Vitesse d'impact
4 600 Coups/min
Diamètres d’aiguilles 3 mm
Pression max.
120 lb/carré
Entrée d'air 1/4 po NPT
Type d'échappement Avant
Taille de tuyau à air recommandée 3/8 po
INTRODUCTION
Idéal pour enlever la rouille, la calamine et la peinture
rapidement et facilement. Enlève le fondant de soudage, la
rouille, la calamine, la peinture, le ciment et les autres résidus
lors de la préparation des surfaces.
Le concept droit permet d’accéder aux endroits difficiles
d’accès. Le dérouilleur-détartreur présente 19 pointeaux d’acier
très résistants à l’usure, un corps et un piston thermisés afin de
prolonger la durée utile de l’outil. Il est également muni d’un
dispositif de retenue avec verrou pour levier.
SÉCURITÉ
AVERTISSEMENT ! Veuillez lire et comprendre toutes les
instructions avant d'utiliser cet outil. L'utilisateur doit respecter
DÉROUILLEUR-DÉTARTREUR
PNEUMATIQUE

V 1,0 DÉROUILLEUR-DÉTARTREUR PNEUMATIQUE 8348674
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les précautions de base lorsqu'il utilise cet outil afin de réduire
le risque de blessure ou de dommage à l'équipement.
Conservez ce manuel qui contient les avertissements de
sécurité, les précautions, les instructions de fonctionnement ou
d'inspection et d'entretien.
DÉFINITIONS DE DANGER
Veuillez-vous familiariser avec les avis de danger qui sont
présentés dans ce manuel. Un avis est une alerte indiquant qu'il
existe un risque de dommage à la propriété, de blessure ou de
décès si on ne respecte pas certaines instructions.
DANGER ! Cet avis indique un risque immédiat et particulier
qui
entraînera
des blessures corporelles graves ou même la
mort
si on omet de prendre les précautions nécessaires.
AVERTISSEMENT ! Cet avis indique un risque particulier ou
une pratique non sécuritaire qui
pourrait
entraîner des
blessures corporelles graves ou même la mort
si on omet de
prendre les précautions nécessaires.
ATTENTION ! Cet avis indique une situation possiblement
dangereuse qui peut entraîner des blessures mineures ou
modérées si on ne procède pas de la façon recommandée.
AVIS ! Cet avis indique un risque particulier ou une pratique
non sécuritaire qui entraînera des dommages au niveau de
l'équipement ou des biens, mais non des blessures corporelles.
AIRE DE TRAVAIL
1. Travaillez dans un environnement de travail sécuritaire.
Gardez votre aire de travail propre, bien éclairée et
exempte de toute distraction.
2. Assurez-vous que les personnes qui ne portent pas
l'équipement de sécurité approprié ne se trouvent pas à
proximité de l'aire de travail.

8348674 DÉROUILLEUR-DÉTARTREUR PNEUMATIQUE V 1,0
4 En cas de questions techniques, appelez le 1-800-665-8685
3. Rangez les outils correctement dans un lieu sécurisé et sec.
Gardez les outils hors de la portée des enfants.
4. N'installez pas et n'utilisez pas d'outils électriques en
présence de gaz, de poussière ou de liquides inflammables.
SÉCURITÉ PERSONNELLE
AVERTISSEMENT ! Portez de l'équipement de protection
personnelle homologué par l'Association canadienne de
normalisation (CSA) ou l'American National Standards
Institute (ANSI).
ÉQUIPEMENT DE PROTECTION PERSONNELLE
1. Portez toujours des lunettes antiprojections qui offrent une
protection frontale et latérale pour les yeux. L'équipement de
protection des yeux devrait être conforme à la norme CSA
Z94.3-07 ou ANSI Z87.1 fonction du type de travail effectué.
2. Portez un écran facial panoramique de type approprié avec
les lunettes de sécurité puisque cette tâche peut créer des
copeaux, des matières abrasives ou des particules.
3. Portez des gants qui protègent en fonction des matériaux
de travail et pour réduire les effets des vibrations de l'outil.
3.1 Ne portez pas de gants lorsque vous utilisez un outil
dans lequel le tissu pourrait demeurer coincé,
entraînant ainsi la main.
4. Portez des vêtements de protection conçus pour
l'environnement de travail et pour l'outil.
5. Les chaussures antidérapantes sont recommandées pour
maintenir la stabilité et l'équilibre au sein de
l'environnement de travail.
6. Portez un appareil respiratoire approuvé par la NIOSH pour
travailler sur des matériaux qui produisent des émanations
dangereuses, de la poussière ou des particules.