PROPOINT 8349821 User manual

Please read this manual before use.
User Manual
V 3.04 8349821
HEAVY DUTY STRAIGHT
LINE AIR SANDER

2 For technical questions call 1-800-665-8685
V 3.04 8349821
HEAVY DUTY STRAIGHT
LINE AIR SANDER
SPECIFICATIONS
Features Maximum Pressure 90 PSI
Air Consumption
@ 90 PSI
5 CFM
No Load Speed 3,000 Strokes per Minute
Size Paper 2-3/4 x 17-1/2 in.
Stroke 1 in.
Air Inlet 1/4 NPT
Pad Diameter 2-1/2 x 15-3/4 in.
Noise Level 87 Decibels
Construction Style Twin piston, Heavy Duty
INTRODUCTION
This heavy-duty straight line sander features a needle roller
bearing and a twin piston construction. This means faster sanding
and a longer tool life. This tool is designed for sanding down body
filler or for the shaping and leveling of large flat surfaces.

HEAVY DUTY STRAIGHT LINE AIR SANDER
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8349821 V 3.04
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.
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.
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.

HEAVY DUTY STRAIGHT LINE AIR SANDER
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PERSONAL SAFETY
WARNING! Wear personal protective equipment approved by
the Canadian Standards Association (CSA) or American National
Standards Institute (ANSI).
PERSONAL PROTECTIVE EQUIPMENT
1. Always wear impact safety goggles that provide front and
side protection for the eyes. Wear a full-face shield if your
work creates metal filings or wood chips.
2. Wear gloves that provide protection based on the work
materials or to reduce the effects of tool vibration.
3. Non-skid footwear is recommended to maintain footing and
balance in the work environment.
4. Steel toe footwear or steel toecaps to prevent injury from
falling objects.
5. Wear protective clothing designed for the work environment
and tool.
6. Wear a NIOSH approved respirator when working on
materials that produce 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 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 a tool. Proper footing and
balance enables better control in unexpected situations.

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8349821 V 3.04
SPECIFIC SAFETY PRECAUTIONS
DANGER! Ensure the RPM rating of the pad corresponds with the
manufacturer’s recommended speed of the tool. Over speeding
an accessory will cause injury.
DANGER! Disconnect this tool before performing any
maintenance, changing accessories or when not in use to prevent
accidental start up.
WARNING! Use the proper hose and fitting. To prevent
coupling from shaking loose during vibrations, add a hose
whip and connect coupling between the air supply and hose
whip to ensure reliability and prevent injury (see Installing Air
Compressor instructions)
WARNING! To prevent injury and mishap, keep tool away from
body during operation.
WARNING! To prevent slippage and mishap, never use cloth
backed sanding discs. Use paper sanding discs and the
recommended adhesive. Follow the Adhesive manufacture’s
directions exactly as specified.
NOTICE! Tools of this class operate on a wide range of air
pressures. It is recommended that the air pressure of this tool,
measure 90 PSI at the tool without load. Higher pressure will
shorten the tool’s life due to wear and tear.
GENERAL SAFETY PRECAUTIONS
AIR TOOL PRECAUTIONS
1. Extended exposure to air tool noise may cause hearing loss.
Ear protection gear can reduce or eliminate the noise level.
Add a muffling device to the air tool’s exhaust if possible.
2. Inspect the tool’s airline for cracks, fraying or other faults
before each use. Discontinue use if the airline is damaged
or hissing is heard from the airline or connectors, while
operating the tool. Replace the defective component/airline.

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3. Do not allow people, mobile equipment or vehicles to pass
over the unprotected airline. Position the airline away from
high traffic areas, in a reinforced conduit or place planks on
both sides of the airline to create a protective trench.
4. Prevent damage to the airline by observing the following:
a. Never carry the tool by the airline.
b. Keep the airline behind the tool and out of the tool’s
work path.
c. Keep the airline away from heat, oil, sharp edges or
moving parts.
d. Do not wrap the airline around the tool as sharp edges
may pierce or crack the airline. Coil the airline when
storing.
5. A damaged or disconnected airline under pressure may
whip around and inflict personal injury or damage the work
area. Secure the compressor’s airline to a fixed or permanent
structure with clamps or cable ties.
6. 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.
7. 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.

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8349821 V 3.04
VIBRATION PRECAUTIONS
1. This tool vibrates during use. Repeated or long-term
exposure to vibration may cause temporary or permanent
physical injury. Take frequent breaks when using the tool.
2. 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.
3. Wear suitable gloves to reduce the effects of vibration.
4. DO NOT use this tool before consulting a physician if one of
the following applies:
a. Pregnant
b. Impaired blood circulation to the hands
c. Past hand injuries
d. Nervous system disorders
e. Diabetes
f. Raynaud’s Disease
USE AND CARE OF TOOL
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 regulator/throttle
switch is in the neutral or OFF position when not in use and
before connecting it to any air source.

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OPERATION
WARNING! To prevent possible
injury and damage to your new tool,
only use paper sanding discs and
follow adhesive manufacturer’s
directions explicitly.
NOTICE! Air tool consumption
ratings CFM, are based upon a
25% duty cycle. If you require
continuous duty, a larger compressor
will be required.
If you are using this tool for the first
time, follow these steps carefully:
INSTALL AIR CONNECTOR
Prepare a standard 1/4 in. NPT male
air connector for use with your tool.
1. Wrap the external threads of the male connector with
sealant tape.
a. Wrap tape in a clockwise direction so it will not unravel.
b. 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 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.

HEAVY DUTY STRAIGHT LINE AIR SANDER
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8349821 V 3.04
MAINTENANCE
WARNING! Only qualified service personnel should repair the
tool. An improperly repaired tool may present a hazard to the
user and/or others.
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.
3. Follow instructions for changing accessories.
4. Keep the tool handles clean, dry and free from oil/grease at
all times.
5. Inspect the tool fittings, alignment and hoses and power
supply cord periodically. Have damaged or worn components
repaired or replaced by an authorized technician.
6. When servicing, use only identical replacement parts. Only
use accessories intended for use with this tool. Replace
damaged parts immediately.
7. Maintain the tool’s label and nameplate. These carry
important information. If unreadable or missing, contact
Princess Auto Ltd. for replacements.

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LUBRICATION
NOTICE! Never use a penetrating oil to lubricate an air tool.
Penetrating oil may act as a solvent that will break down the
grease and cause the tool to seize up.
Only use air tool oil to lubricate the tool. Other lubricants may
not be suitable and could damage the tool or cause a malfunction
during use.
1. All air tools are packed in grease to prevent corrosion of
internal parts during shipping and storage. To clean this out,
add a generous amount of air tool oil in the air inlet, and then
run the tool under no load until 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. Without lubrication, the tool will not work
properly and parts will wear prematurely.
3. Avoid adding too much air tool oil as this can cause
premature power loss and eventual tool failure. The tool will
need to be taken apart by a qualified technician and cleaned
of excess oil.
4. In the event that it becomes necessary to store the tool for
an extended period of time (overnight, weekend, etc.), it
should receive a generous amount of lubrication at that time.
The tool should be run for approximately 30 seconds to
ensure oil has been evenly distributed throughout the tool.
The tool should be stored in a clean and dry environment.

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8349821 V 3.04
TROUBLESHOOTING
Contact Princess Auto Ltd. 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. Contact Princess Auto Ltd.
for a solution. If unable
to do so, have a qualified
technician service the tool.
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.
3. Operate tool in
short bursts.
4. Repeat above as
needed. If this fails,
contact Princess Auto
Ltd. for a solution.
Air regulator in
closed position.
Open the air regulator to
desired airflow.

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Problems Possible Causes Suggested Solutions
Tools will not
run. Air
flows freely
from exhaust.
O-rings throttle
valve dislodged
from seat
inlet valve.
Contact Princess Auto Ltd.
for a solution. If unable
to do so, have a qualified
technician service the tool.
Damage or
excessive wearing
of internal parts.
Piston is jammed. 1. Remove chisel and
spring retainer.
2. Push punch through
hole in the cylinder
until resting against
the piston.
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 and remove
any rust.
6. Reassemble.
7. If unable to free piston,
contact Princess Auto
for a solution.
Tool will not
shut off.
O-rings throttle
valve dislodged
from seat
inlet valve.
Contact Princess Auto Ltd.
for a solution. If unable
to do so, have a qualified
technician service the tool.

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8349821 V 3.04
Problems Possible Causes Suggested Solutions
Loss of power
or erratic
performance.
Excessive drain
on the airline.
Incorrect size or
type of
hose connectors.
Check the airline and
confirm the hose fitting is
correct for the inlet bushing.
Moisture or
restriction in the
airline/tank
Depressurize system and
drain tank and airline of
water.
Air compressor
has insufficient
flow.
Ensure tool is connected to
a compressor with a rate
flow that matches the tool.
PARTS BREAKDOWN

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PARTS LIST
PART # DESCRIPTION QTY IDENTIFIER
1 Housing Assembly (includes
reverse valve bushing)
1 805A01
2 Throttle Valve 1 805A02
3 Throttle Valve
Bushing Assembly
1 805A03
4 Throttle Valve Bushing Seal 1 805A04
5 Throttle Valve Plunger 1 805A05
6 Throttle Valve Spring 1 805A06
7 Throttle Valve Spring Seat 1 805A07
8 Inlet Bushing 1 805A08
9 Throttle Lever 1 805A09
10 Throttle Lever Pin 1 805A10
11 Reverse Valve 1 805A11
12 Reverse Valve Cap Assembly 1 805A12
13 Reverse Valve Cap O-Ring 1 805A13
14 Actuator Valve 1 805A14
15 Reverse Valve Pinion 1 805A15
16 Rear Handle 1 805A16
17 Rear Handle Screw (Short) 4 805A17
18 Rear Handle Screw (Long) 2 805A18
19 Backhead 1 805A19
20 Backhead Mounting
Screw (Long)
2 805A20
21 Backhead Mounting
Screw (Short)
2 805A21

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8349821 V 3.04
PART # DESCRIPTION QTY IDENTIFIER
22 Backhead Casket 1 805A22
23 Fronthead 1 805A23
24 Fronthead Mounting Screw 4 805A24
25 Fronthead Gasket 1 805A25
26 Fronthead Handle 1 805A26
27 Oiler Cavity Screw 1 805A27
28 Oiler Cavity Washer 1 805A28
29 Piston Assembly 2 805A29
30 Felt Piston Plug
(2 for each piston)
2 805A30
31 Piston Seal Ring
(2 for each piston)
2 805A31
32 Piston Pinion Gear 2 805A32
33 Piston Gear Shaft 2 805A33
34 Piston Gear Shaft Bearing 4 805A34
35 Wear Plate 4 805A35
36 Wear Plate Screw 8 805A36
37 Guide Plate 2 805A37
38 Guide Plate Screw 12 805A38
39 Drive Board (Includes Racks) 1 805A39
40 Sanding Pad Assembly 1 805A40
41 Sanding Pad Nut 2 805A41
42 Sanding Pad Lock Washer 2 805A42
• Nameplate 1
• Nameplate Drive Screw 2

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Manuel d'utilisateur
Veuillez lire ce manuel avant d'utiliser cet outil.
PONCEUSE PNEUMATIQUE ROBUSTE À
MOUVEMENT OSCILLATOIRE

2 En cas de questions techniques, appelez le 1-800-665-8685
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PONCEUSE PNEUMATIQUE ROBUSTE À
MOUVEMENT OSCILLATOIRE
SPÉCIFICATIONS
Caractéristiques Pression maximale 90 lb/po carré
Consommation d’air à
90 lb/po carré
5 pi cubes/min
Vitesse à vide 3 000 cycles par
minute
Taille Papier 2 3/4 x 17 1/2 po
Course 1 po
Entrée d’air 1/4 NPT
Diamètre de tampon 2 1/2 x 15 3/4 po
Niveau de bruit 87 décibels
Type de construction Deux pistons, robuste
INTRODUCTION
Cette ponceuse alternative robuste est munie d’une aiguille
de roulement à rouleaux et de deux pistons, ce qui permet de
procéder au sablage plus rapidement, en plus de prolonger la
durée de vie de l’outil. Cet outil a été conçu pour sabler le mastic
de finition ou pour former et mettre au niveau les surfaces planes
plus vastes.

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8349821 V 3,04
SÉCURITÉ
AVERTISSEMENT ! Veuillez lire et comprendre toutes les
instructions avant d’utiliser cet outil. L’utilisateur doit respecter
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.
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.

PONCEUSE PNEUMATIQUE ROBUSTE À MOUVEMENT OSCILLATOIRE
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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.
3. Rangez les outils correctement dans un lieu sécurisé et sec.
Gardez les outils hors de la portée des enfants.
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. Portez un écran
facial panoramique si votre travail produit des limailles ou
des copeaux de bois.
2. Portez des gants qui protègent en fonction des matériaux de
travail et pour réduire les effets des vibrations de l’outil.
3. Les chaussures antidérapantes sont recommandées pour
maintenir la stabilité et l’équilibre au sein de l’environnement
de travail.
4. Chaussures à embouts d’acier ou à coquilles d’acier pour
éviter les blessures dues à la chute d’objets.
5. Portez des vêtements de protection conçus pour
l’environnement de travail et pour l’outil.
6. Portez un appareil respiratoire approuvé par la NIOSH pour
travailler sur des matériaux qui produisent de la poussière ou
des particules.
7. Cet outil peut causer des dommages à l’ouïe. Portez un
dispositif de protection anti-bruit présentant une cote de
réduction du bruit adéquate en fonction du niveau
de décibels.

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8349821 V 3,04
PRÉCAUTIONS PERSONNELLES
Gardez le contrôle de l’outil, de vos mouvements et de
l’environnement de travail pour éviter les blessures ou le bris
de l’outil.
1. N’utilisez pas l’outil si vous êtes fatigué ou sous l’effet de
drogues, d’alcool ou de médicaments.
2. Évitez de porter des vêtements ou des bijoux pouvant
se prendre dans les pièces mobiles d’un outil. Gardez les
cheveux longs recouverts ou attachés.
3. N’utilisez pas l’outil si vous devez étirer les bras pour vous
en servir. Une stabilité et un équilibre appropriés sont
nécessaires afin d’avoir un meilleur contrôle en cas de
situations inattendues.
CONSIGNES DE SÉCURITÉ SPÉCIFIQUES
DANGER ! Assurez-vous que le régime nominal de la plaquette
correspond à la vitesse de l’outil que recommande le fabricant.
L’utilisation d’un accessoire à une vitesse trop élevée entraînera
des blessures.
DANGER ! Débranchez cet outil avant de procéder à l’entretien,
de remplacer des accessoires ou lorsqu’il n’est pas utilisé afin de
prévenir tout démarrage accidentel.
AVERTISSEMENT ! Utilisez le tuyau et le raccord recommandés.
Pour éviter que le raccord ne vibre et ne se détache en raison des
vibrations, ajoutez un fouet pour tuyau et reliez le raccord entre
la source d’alimentation d’air et le fouet pour assurer la fiabilité
et prévenir les blessures (voir les instructions dans la rubrique
Installation du compresseur d’air).
AVERTISSEMENT ! Pour éviter les blessures et tout incident,
tenez l’outil à distance du corps en cours d’utilisation.
AVERTISSEMENT ! Pour éviter tout glissement et tout incident,
n’utilisez jamais des disques abrasifs avec endos de tissu.
Utilisez des disques abrasifs en papier et l’adhésif recommandé.
Observez minutieusement les instructions du fabricant
de l’adhésif.