Bosch OS50VC Owner’s Manual
BM 2609932873 11-12_BM 2609932873 11-12.qxp 11/27/12 10:48 AM Page 1
IMPORTANT: IMPORTANT : IMPORTANTE:
Read Before Using Lire avant usage Leer antes de usar
Operating/Safety Instructions
Consignes de fonctionnement/sécurité
Instrucciones de funcionamiento y seguridad
OS50VC
Call Toll Free for
Consumer Information
& Service Locations
Pour obtenir des informations
et les adresses de nos centres
de service après-vente,
appelez ce numéro gratuit
Llame gratis para
obtener información
para el consumidor y
ubicaciones de servicio
1-877-BOSCH99 (1-877-267-2499) www.boschtools.com
For English Version Version française Versión en español
See page 2 Voir page 14 Ver la página 26
BM 2609932873 11-12_BM 2609932873 11-12.qxp 11/27/12 10:48 AM Page 2
General Power Tool Safety Warnings
WARNING
!
Read all safety warnings and all instructions. Failure to follow the warnings
and instructions may result in electric shock, fire and/or serious injury.
SAVE ALL WARNINGS AND INSTRUCTIONS FOR FUTURE REFERENCE
The term “power tool” in the warnings refers to your mains-operated (corded) power tool or
battery-operated (cordless) power tool.
Work area safety
Keep work area clean and well lit. Cluttered
or dark areas invite accidents.
Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases or dust. Power
tools create sparks which may ignite the dust
or fumes.
Keep children and bystanders away while
operating a power tool. Distractions can
cause you to lose control.
Electrical safety
Power tool plugs must match the outlet.
Never modify the plug in any way. Do not
us e a ny adapter pl ug s with earthe d
(grounded) power tools. Unmodified plugs
and matching outlets will reduce risk of electric
shock.
Avoid body contact with earthed or grounded
surfaces such as pipes, radiators, ranges
and refrigerators. There is an increased risk
of electric shock if your body is earthed or
grounded.
Do not expose power too
conditions. Water entering a power tool will
increase the risk of electric shock.
Do not abuse the cord. Never use the cord
for carrying, pulling or unplugging the power
tool. Keep cord away from heat, oil, sharp
edges or moving parts. Damaged or entangled
cords increase the risk of electric shock.
When operating a power tool outdoors,
use an extension cord suitable for outdoor
use. Use of
reduces the risk of electric shock.
If operating a power tool in a damp location
is unavoidable, use a Ground Fault Circuit
Interrupter (GFCI) protected supply. Use of
an GFCI reduces the risk of electric shock.
Do not use AC only rated tools with a DC
power supply. While the tool may appear to
work, the electrical components of the AC
rated tool are likely to fail and create
to the operator.
a cord suitable for outdoor use
ls to rain or wet
a hazard
Stay alert, watch what you are doing and
us e co mmon s ense when opera ting a
power tool. Do not use a power tool while
you are tired or under the influence of drugs,
alcohol or medication. A moment of inattention
while operating power tools may result in
serious personal injury.
Use personal protective equipment. Always
wear eye protection. Protective equipment
such as
hat, or hearing protection used for appropriate
conditions will reduce personal injuries.
Prevent unintentional starting. Ensure the
sw itch is in th e o ff-po sitio n b efore
connecting to power source and / or battery
pa ck, picki ng u p or carrying the tool.
Carry
switch or energizing power tools that have the
switch on invites accide
Remove any adjusting key or wrench before
turning the power tool on. A wrench or a
key left attached to a rotating part of the
power tool may result in personal injury.
Do not overreach. Keep proper footing and
balance at all times. This enables better
co ntrol of the power to ol in unexpe ct ed
situations.
Dress properly. Do not wear loose clothing
or jewelry. Keep your hair, clothing and
gloves away from
clothes, jewelry or long hair can be caught in
moving parts.
If devices are provided for the connection
of dust extraction and collection facilities,
ensure these are connected and properly
used. Use of dust collection can reduce dust-
related hazards.
Do not forc e the power to ol . Use the
correct power tool for your application. The
correct power tool will do the jo
safer at the rate for which it was designed.
-2-
Personal safety
dust mask, non-skid safety shoes, hard
ing power tools with your finger on the
nts.
moving parts. Loose
Power tool use and care
b b
etter and
BM 2609932873 11-12_BM 2609932873 11-12.qxp 11/27/12 10:48 AM Page 3
Do not use the power tool if the switch does
not turn it on and off. Any power tool that
ca nn ot be co nt ro ll ed wi th th e switc h is
dangerous and must be repaired.
Disconnect the plug from the power source
and/or the battery pack from the power tool
before making any adjustments, changing
accessories, or storing power tools. Such
preventive safety measures reduce the risk of
starting the power tool accidental
Store idle power tools out of the reach of
children and do not allow persons unfamiliar
with the power tool or these instructions to
operate the power tool. Power tools are
dangerous in the hands of untrained users.
Maintain power tools. Check for misalignment
or binding of moving parts, breakage of
parts and any other condition that may
affect the power tool’s operation. If damaged,
have the power tool
Ma ny acci de nt s a re caus ed by poorly
maintained power tools.
Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting
edges are less likely to bind and are easier to
control.
se the power tool, accessories and tool
U
bits etc. in accordance with these instructions,
repaired before use.
ly.
taking into account the working conditions
and the work to be performed. Use of the
power too
intended could result in a hazardous situation.
Keep handles dry, clean and free from oil
and grease. Slippery hands cannot safely
control the power tool.
l for operations different from those
Service
Have your power tool serviced by a qualified
re pa ir person using o nl y id en ti ca l
replacement parts. This will ensure that the
safety of the power tool is maintained.
Develop a periodic maintenance schedule
our tool. When cleani ng a tool be
for y
careful not to disassemble any portion of
th e tool since inter nal wires may be
misplaced or pinched or safety guard return
sp rings ma y be impro perly mo unted.
Certain cleaning agents such as gasoline,
carbon tetrachloride, ammonia, et c. may
damage plastic parts.
Preve ntive mainte nance performed by
unauthorized p er so n nel m ay res ult in
misplac in g of inte rn al wires an d
compon
h
be performed by a Bosch Factory Service
Center or Autho rized Bosch Service Station.
ents which could cause serious
azard. We recommend that all tool service
Safety Rules for Orbital Sanders
Unplug the sande r befor e chang in g
accessories. Accidental start-ups may occur
if sander is plugged in while changing an
accessory.
Us e clam ps or oth er pra ctical way to
secure and support the workpiece to a
stable platform. Holding the work by hand
or against your body is unstable and may
lead to loss of control.
Your too l i s e quipp ed w ith a d us t
caniste r, e mpty it f re qu ently
ompletion of sanding and before storing
c
the sander. Be extremely careful of dust
disposal, materials in fine particle form may
be explosive. Do not throw sanding dust on
an open fire. Combustion from mixture of
varnishes, lacquers, p olyurethane, oil or
water with dust particles can occur if there is
a static discharge, spark introduced in the
box, or excessive heat.
, after
Always wear eye protection and a
mask for dusty applications and when
anding overhead. Sanding particles can be
s
absorbed by your eyes and inhaled easily
and may cause health complications.
Use special precautions when sanding
chemically pressure treated lumber, paint
th at may be l ead based, or any o ther
materials that may contain carcinogens. A
suitable breathing respirator and protective
clothing must be worn by all persons entering
e work area. Work area should be sealed
th
by p la st ic s he eting and p ersons n ot
rotected should be kept out until work area
p
is thoroughly cleaned.
Do not wet sand with this sander. Liquids
entering the motor housing is an electrical
shock hazard.
-3-
dust
BM 2609932873 11-12_BM 2609932873 11-12.qxp 11/27/12 10:48 AM Page 4
Do not use sandpaper intended for larger
sanding pads. Larger sandpaper will extend
beyond the sanding pad causing snagging,
Additional Safety Warnings
WARNING
!
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
Some dust created by power
sanding, sawing, grinding,
tearing of the paper or kick-back. Extra paper
extending beyond the sanding pad can also
cause serious lacerations.
• Arsenic and chromiu m from chemicall ytreated lumber.
Yo ur ri sk from these ex po su r
depending on how 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.
ten you do this type of
es va ri es ,
-4-
BM 2609932873 11-12_BM 2609932873 11-12.qxp 11/27/12 10:48 AM Page 5
Symbols
IMPORTANT: Some of the following symbols may be used on your tool. Please study them
and learn their meaning. Proper interpretation of these symbols will allow you to operate the
tool better and safer.
Symbol Name Designation/Explanation
V Volts Voltage (potential)
A Amperes Current
Hz Hertz Frequency (cycles per second)
W Watt Power
kg Kilograms Weight
min Minutes Time
s Seconds Time
Diameter Size of drill bits, grinding wheels, etc.
n
n Rated speed Maximum attainable speed
.../min Revolutions or reciprocation Revolutions, strokes, surface speed,
0 Off position Zero speed, zero torque...
1, 2, 3, ... Selector settings Speed, torque or position settings.
I, II, III, Higher number means greater speed
0
No load speed Rotational speed, at no load
0
per minute orbits etc. per minute
Infinitely variable selector with off Speed is increasing from 0 setting
Arrow Action in the direction of arrow
Alternating current Type or a characteristic of current
Direct current Type or a characteristic of current
Alternating or direct current Type or a characteristic of current
Class II construction Designates Double Insulated
Construction tools.
Earthing terminal Grounding terminal
Warning symbol Alerts user to warning messages
Li-ion RBRC seal Designates Li-ion battery recycling
program
Ni-Cad RBRC seal Designates Ni-Cad battery recycling
program
Read manual symbol Alerts user to read manual
Wear eye protection symbol Alerts user to wear eye protection
-5-
BM 2609932873 11-12_BM 2609932873 11-12.qxp 11/27/12 10:48 AM Page 6
Symbols (continued)
IMPORTANT: Some of the following symbols may be used on your tool. Please study them
and learn their meaning. Proper interpretation of these symbols will allow you to operate the
tool better and safer.
This symbol designates that this tool is listed by Underwriters Laboratories.
This symbol designates that this component is recognized by Underwriters
Laboratories.
This symbol designates that this tool is listed by Underwriters Laboratories,
to United States and Canadian Standards.
This symbol designates that this tool is listed by the Canadian Standards
Association.
This symbol designates that this tool is listed by the Canadian Standards
Association, to United States and Canadian Standards.
This symbol designates that this tool is listed by the Intertek Testing
Services, to United States and Canadian Standards.
This symbol designates that this tool complies to NOM Mexican Standards.
-6-
BM 2609932873 11-12_BM 2609932873 11-12.qxp 11/27/12 10:48 AM Page 7
Functional Description and Specifications
WARNING
!
Di sc on nect the pl ug from the po wer source be fore making any
assembly, adjustments or changing accessories. Such preventive safety
measures reduce the risk of starting the tool accidentally.
Orbital Sander
FIG. 1
“LOCK-ON” BUTTON
TRIGGER SWITCH
VARIABLE SPEED
DIAL
AIR VENTS
RUBBERIZED
GRIP
SCREW
(5 MM
WRENCH)
REAR HANDLE
CORD
RUBBERIZED GRIP
DUST
CANISTER
MICROFILTER
REAR CLAMP
FRONT
HANDLE
SHEETLOC SUPREME™
REAR CLAMP LEVER
VIBRATION CONTROL
SUSPENSION SYSTEM
Suspension system separates housing
and grip areas above this point from
BACKING PAD
FRONT CLAMP
SHEETLOC SUPREME™
FRONT CLAMP LEVER
motor housing and sanding mechanism
for low vibration and maximum comfort
Model number OS50VC
Voltage rating 120 V 60Hz
Pad size 4 1/2" x 11" (1/2 sheet)
NOTE: For tool specifications refer to the nameplate on your tool.
-7-
BM 2609932873 11-12_BM 2609932873 11-12.qxp 11/27/12 10:48 AM Page 8
Assembly
WARNING
!
attaching or removing abrasive sheets.
ATTACHING REGULAR SANDING SHEETS
USING SHEETLOC™ SYSTEM
The Bosch-Exclusive Sheetloc Supreme™
Sandpaper Attachment System pulls regular
abrasive sheets (sandpaper) flat and tight
before clamping to prevent wrinkles, creases
and tears for optimal sanding performance and
longer paper life. Patents Pending
1. While p
insert the abrasive sheet (grit side down)
between the rear clamp and base plate.
Make sure that sheet is centered under the
rear clamp and inserted deep enough to be
fully under the rear clamp, then release the
lever (Fig. 2).
Always disconnect the plug
from the power source before
ressing the rear clamp release lever,
FIG. 2
REAR CLAMP
SANDING
SHEET
clamp lever to the base plate and lock it in
place. This action pulls the abrasive taut
while clamping, which prevents wrinkles,
creases and tears (Fig. 4).
REMOVING REGULAR SANDING SHEETS
Simply press the rear clamp lever and release
the front clamp lev
sheet (Fig. 2 & 3).
er to release the abrasive
FIG. 4
SANDING
SHEET
REPLACEMENT OF BACKING PAD
The backing pad can be replaced if needed.
Remove the six M4 screws and remove the
worn pad. Position the new pad over the screw
holes, insert the screws and tighten (Fig. 5).
M4 SCREW
FIG. 5
SHEETLOC SUPREME™
FRONT CLAMP LEVER
2. To open the front clamp, press the front
clamp lever out from the tool (Fig. 3).
SHEETLOC SUPREME™
REAR CLAMP LEVER
FIG. 3
3. Wrap the abrasive sheet around the length
of the pad and
the front clamp’s black bar. Flatten the
abrasive sheet by pushing it as far to the
ack as possible, then the move the front
b
slide free end of sheet under
ATTACHING PSA “STICK-ON”
Your sander can also be used with PSAba ck ed “s ti ck -o n” ab ra sive sh eets
(sandpaper), which have pressure sensitive
adhe
1. Peel protective sheet from the back of PSA
sheet.
2. Align PSA sheet with backing pad and
press firmly in place.
ABRASIVE SHEETS
sive.
-8-
BACKING
PAD
I
DUST PORT
DUST
CANISTER
BM 2609932873 11-12_BM 2609932873 11-12.qxp 11/27/12 10:48 AM Page 9
Notes:
• Make sure that SheetLoc™ System’s front
clamp lever is latched, even when PSA
abrasive sheets are used.
• Remove PSA sheets soon after completing
each sanding operation in order to prevent
the adhe sive from creating a hardened
bond with the backing pad.
REMOVING PSA ABRASIVE SHEETS
To remove, lift an edge of accessory with your
fingernail and peel it off the backing pad.
Note: If PSA paper is accide
pad, the best way to remove it is to sand for a
few minutes to soften the adhesive backing.
PUNCH PLATE
After the paper has been installed, it will be
necessary to punch holes into the paper using
the punch plate provided with your sander.
Align sander base with punch plate and push
ntally left on the
Dust Collection
MICROFILTER DUST CANISTER
The integral dust extraction system collects
sanding dust in canister supplied with your
sander. For maximum efficiency, the dust
canister should be emptied frequently during
operation.
WARNING
!
frequently, after completion of sanding and
before storing the sander. Be extremely
careful of dust disposal, materials in fine
particle form may b
sanding dust on an open fire. Combustion
Your tool is equipped with
a dust canister, empty it
e explosive. Do not throw
down on sander until punch plate pierces the
paper. Then remove punch plate from sander
(Fig. 6).
FIG. 6
D
PUNCH
PLATE
fr om mixtur e of varnish es , lacq uers,
polyurethane, oil or water with dust particles
can occur if there is a static discharge, spark
introduced in the box, or excessive heat.
REMOVING AND INSTALLING
To remove dust canister: Twist the dust
canister and simply pull away from the tool
(Fig. 7).
To install dust canister: align dust p
hole in canister and push canister onto tool
until it locks into place (Fig. 8).
DUST CANISTER
ort with
FIG. 7
FIG. 8
1
2
DUST
CANISTER
-9-
BM 2609932873 11-12_BM 2609932873 11-12.qxp 11/27/12 10:48 AM Page 10
CLEANING AND EMPTYING THE
The dust canister is transparent which will
allow you to easily see when empting and
cleaning is requires.
To empty dust the canister: screw off and
remove microfilter from the dust canister.
Empty dust canister (Fig. 9).
It is recommended to loosen dust from the
microfilter by gently striking it against a solid
surface (Fig. 10).
DUST CANISTER
FIG. 9
MICROFILTER
1
2
DUST
CANISTER
Knock excess dust out of the microfilt
remove dust with your fingers or a soft brush.
You may notice that all the dust may not come
out of the canister. This will not affect sanding
performance but will reduce dust collection
efficiency.
NOTE: Do not wash the microfilter with soap
and water. Dust may become more firmly
lodged in the pores, which will reduce dust
collection, and damage the micro filter.
To ensure optimum dust extraction, em
clean the canister and microfilter frequently.
FIG. 10
MICROFILTER
er, or
pty and
ATTACHING VACUUM HOSE
When the canister is removed from the tool, an
(optional) vacuum hose accessory can be
attached to the dust port. To use this feature,
attach vacuum hose (optional accessory) to
dust port, then connect opposite end of the
vacuum hose to a shop vacuum cleaner.
The VAC024 vacuum hose adapter is included
for connection of this tool to a 1-1/4" or 1-1/2"
vacuum hose (Fig. 11).
Mount the va
such a manner that the open slot on the dust
port remains open. This prevents the tool from
adhering to the workpiece during sanding
operation and improves the surface quality.
cuum hose onto the dust port in
When using a vacuum hose with this sander
the amount of suction can be adjusted by
sliding the hose over or off the open slot in the
hose port area on the sander.
The vacuum cleaner mus
material being sanded.
When vacuuming dry dust that is especially
detrimental to health or may be carcinogenic,
use a special vacuum cleaner.
W
hen sanding on vertical surfaces, hold the
power tool in such a manner that the vacuum
hose faces downward.
SUCTION CONTROL
t be suitable for the
-10-
BM 2609932873 11-12_BM 2609932873 11-12.qxp 11/27/12 10:48 AM Page 11
FIG. 11
VAC024
DUST
PORT
BOSCH
VACUUM HOSE
SUCTION
CONTROL SLOT
1-1/4”
OR
1-1/2” HOSE
Operating Instructions
TRIGGER "ON-OFF" SWITCH
To turn the tool "ON" squeeze the trigger
switch. To turn the tool "OFF", release the
trigger switch, which is spring loaded and will
return to the "OFF" position automatically
(Fig. 1).
To increase switch life, do not turn switch on
and off while tool is under load.
The "Lock-ON" button, located near the trigger
allows for continuous operation at maximum
OPM without
TO LOCK TRIGGER "ON": squeeze trigger,
depress button and release trigger.
TO UNLOCK THE TRIGGER: squeeze trigger
and release it without depressing the "LockON" button.
!
the trigger can not be released.
Your sander is equipped with a variable speed
dial (Fig. 1). The sander's orbital speed can be
pr ese
positions from 1 (8000 OPM) to 6 (11000
OPM).
"LOCK-ON" BUTTON
holding the trigger (Fig. 1).
WARNING
t by rot ating th e dial to any of si x
If the “Lock-O N” but ton is
continuously being depressed,
VARIABLE SPEED DIAL
In general,
• Higher-speeds are used to achieve results
more quickly.
• Lower speeds are especially appropriate
when sanding soft materials or thin veneers
to minimize the possibility of over sanding.
The best results will be obtained by sanding a
test sample of the workpiece material and
determining the best combination of sa
speed and sanding sheet (sanding paper).
Your sander is equipped with a removable
front handle when sanding in tight quarters. To
remove handle, remove screw with 5 mm hex
wrench. Always reinstall handle for normal
operation (Fig. 1).
Depending on the task, you may grip the rear
handle alone, the rear handle and the front
handle, or the rear handle and the top of the
er gonom icall y co ntour e
housing, which is designed for that purpose.
ABRASIVE SHEETS (SANDPAPER)
Aluminum oxide, silicon carbide, or other
synthetic abrasives are recommended for
power sanding use. Natural abrasives, such as
flint or garnet sheet are too soft for economical
use in power sanding. For best results, use
FRONT HANDLE
d soft gri p mo tor
-11-
nding
BM 2609932873 11-12_BM 2609932873 11-12.qxp 11/27/12 10:48 AM Page 12
Bosch abrasive sheets: The uniform spacing
between grains minimizes filling or loading.
The high quality aluminum oxide sheet with
heavy backing cuts faster and lasts longer.
The following are recommended abrasive
sheets and applications:
Wood
For preliminary
sanding of rough
wood, unplaned
boards.
For mid-stage
sanding and
smoothing of small
irregularities.
For finish and fine
sanding speed and
sanding sheet
(sandpaper)
Paint/Enamels and
Primers and fillers
For removing paint.
For sanding primer.
For final sanding of
primers between
coats.
There are also different types of paper made
for wood, paint and other surfaces.
Additional abrasive sheets can be conveniently
cut from large-size commercially available
sheets (standard size 9" x 11" (228 x 280mm).
Cut into two pieces of equal size. Choose the
proper grit for the job.
Grit
Coase 40, 60
Medium 80, 100, 120
Fine 180, 240, 320,
400
Grit
Coase 40, 60
Medium 80, 100, 120
Fine 180, 240, 320
FIG. 12
Bosch orbital sanders are designed to produce
exceptional finishes on wood surfaces, speed
SANDING TIPS
stock removal, or to remove lacquer, varnish,
and other coated finishes.
Orbital sanding provides fast, smooth final
finishes. And this model can sand flush on all
three sides of the tool t
typical of cabinets, desks and shelving.
• Starting and stopping of sanding - Contact
the work with the tool after sander has
reached its full speed and remove it from the
wo rk b efore turning t he s witch “OFF”.
Operating in this manner will prolong switch
and motor life and will greatly increase the
quality of your work.
• This sander’s even weight distribution and
the prevention of paper
SheetLoc system virtually eliminate any
be nefit fro m pressing on the sander.
Excessive pressure to the sander may result
in an uneven sanding job and premature grit
wear. Constant and excessive pressure can
cause overheating and possible damage to
the motor, as well as premature wear out of
the pad.
• It's usually best to work in strokes that
parallel the grain, using some lateral motion
he main strokes are overlapped as much
so t
as 75%.
• If the surface is rough, start sanding with a
coarse grit, then medium, and then finish
with a fine or extra-fine grit. This procedure
will vary with different types of materials and
work.
• Continue to sand with each grit until the
surface looks uniform.
• When going from one grit size to a finer
size, do not skip more than two grit sizes.
• To remove the grea
use a coarse grit and move the sander
steadily over the entire surface against the
grain as well as with the grain. DO NOT
REMAIN IN ONE SPOT TOO LONG. It may
remove too much material and u neven
sanding will result.
• Sanding with the grain of the wood gives the
smoothest final finish.
• Do not store tool with PSA sheets on pad,
(See REMOVING PSA ABRASIVE SHEETS
on page 8 & 9.)
STORING THE SANDER
as sanding creates heat, which will caus
adhesive bond between the paper and the
pad to harden when paper and pad cool
down.
o get in tight places
slippage by the
test amount of stock,
e an
-12-
Loading...