Fein MSfo870-1d User manual

© C. & E. Fein GmbH. Printed in Germany. Abbildungen unverbindlich. Technische Änderungen vorbehalten. 3 41 01 066 21 0 BY 2019.03 DE.
USA
FEIN Power Tools, Inc.
1000 Omega Drive
Suite 1180
Pittsburgh, PA 15205
Phone: [phone]
www.feinus.com
Canada
FEIN Canadian Power Tool
Company
323 Traders Boulevard East
Mississauga, Ontario L4Z 2E5
Telephone: [phone]
Phone: [phone]
www.fein.com
Headquarter
C. & E. Fein GmbH
Hans-Fein-Straße 81
D-73529 Schwäbisch Gmünd-Bargau
www.fein.com
FEIN Service
FEIN Power Tools, Inc.
2735 Hickory Grove Road
Davenport, IA 52804
Phone: [phone]
[e-mail]
 MSfo870-1d (**) 7 820 ...
 MSfo870-1d (**) 7 820 ...
 MSfo870-1c (**) 7 820 ...
 MSfo870-1c (**) 7 820 ...
 MSfo869-1d (**) 7 820 ...
 MSfo869-1d (**) 7 820 ...
 MSfo869-1c (**) 7 820 ...
 MSfo869-1c (**) 7 820 ...
 MSfo852-1d (**) 7 820 ...
 MSfo852-1d (**) 7 820 ...
 MSfo852-1c (**) 7 820 ...
 MSfo852-1c (**) 7 820 ...
 MSfov852-1 (**) 7 820 ...
 MSfov852-1 (**) 7 820 ...
 MSfov852-1-180 (**) 7 820 ...
 MSfo849-1c (**) 7 820 ...
 MSfo849-1c (**) 7 820 ...
 MSfo849-1b (**) 7 820 ...
 MSf843-1c (**) 7 820 ...
 MSf843-1b (**) 7 820 ...
 MSf843-1a (**) 7 820 ...
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Instruction Manual
Mode d'emploi
Instrucciones de uso
en
3
fr
26
es
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For your safety.
Read all safety warnings and
all instructions. Failure to fol-
low the warnings and instructions may result
in electric shock, fire and/or serious injury.
Save all warnings and instructions for future-
reference.
Do not use this power tool before you
have thoroughly read and completely
understood this Instruction Manual, including
the figures, specifications, safety regulations
and the signs indicating DANGER, WARN-
ING and CAUTION.
Only carry out such operations with this
power tool as intended for by FEIN. Only use
application tools and accessories that have
been released by FEIN.
Please also observe the relevant national
industrial safety regulations.
Non-observance of the safety instructions in
the said documentation can lead to an electric
shock, burns and/or severe injuries.
This Instruction Manual should be kept for
later use and enclosed with the power tool,
should it be passed on or sold.
SAVE THESE INSTRUCTIONS.
The term “power tool” in the warnings refers
to your mains-operated (corded) power tool
or battery operated (cordless) power tool.
General Power Tool Safety
Warnings.
1) Work area safety
a)Keep work area clean and well lit. Clut-
tered or dark areas invite accidents.
b)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.
c) Keep children and bystanders away
while operating a power tool. Distrac-
tion can cause you to lose control.
2) Electrical safety
a)Power tool plugs must match the outlet.
Never modify the plug in any way. Do not
use any adapter plugs with earthed
(grounded) power tools. Unmodified
plugs and matching outlets will reduce
risk of electric shock.
b)Avoid body contact with earthed or
grounded surfaces such as pipes, radia-
tors, ranges and refrigerators. There is
an increased risk of electric shock if
your body is earthed or grounded.
c) Do not expose power tools to rain or wet
conditions. Water entering a power
tool will increase the risk of electric
shock.
d)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.
e) When operating a power tool outdoors,
use an extension cord suitable for out-
door use. Use of a cord suitable for out-
door use reduces the risk of electric
shock.
f) If operating a power tool in a damp loca-
tion is unavoidable, use a ground fault
circuit interrupter (GFCI) protected sup-
ply. Use of an GFCI reduces the risk of
electric shock.
3) Personal safety
a)Stay alert, watch what you are doing
and use common sense when operating
a power tool. Do not use a power tool
while you are tired or under the influ-
ence of drugs, alcohol or medication. A
moment of inattention while operating
power tools may result in serious per-
sonal injury.
b)Use personal protective equipment.
Always wear eye protection. Protective
equipment such as dust mask, non-skid
safety shoes, hard hat, or hearing pro-
tection used for appropriate conditions
will reduce personal injuries.
WARNING
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c) Prevent unintentional starting. Ensure
the switch is in the off-position before
connecting to power source and/or bat-
tery pack, picking up or carrying the
tool. Carrying power tools with your
finger on the switch or energising
power tools that have the switch on
invites accidents.
d)Remove any adjusting key or wrench
before turning the power tool on. A
wrench or a key left attached to a rotat-
ing part of the power tool may result in
personal injury.
e) Do not overreach. Keep proper footing
and balance at all times. This enables
better control of the power tool in
unexpected situations.
f) Dress properly. Do not wear loose cloth-
ing or jewelery. Keep your hair, clothing
and gloves away from moving parts.
Loose clothes, jewelry or long hair can
be caught in moving parts.
g)If devices are provided for the connec-
tion of dust extraction and collection
facilities, ensure these are connected
and properly used. Use of dust collec-
tion can reduce dust-related hazards.
4) Power tool use and care
a)Do not force the power tool. Use the cor-
rect power tool for your application. The
correct power tool will do the job bet-
ter and safer at the rate for which it was
designed.
b)Do not use the power tool if the switch
does not turn it on and off. Any power
tool that cannot be controlled with the
switch is dangerous and must be
repaired.
c) Disconnect the plug from the power
source and/or the battery pack from the
power tool before making any adjust-
ments, changing accessories, or storing
power tools. Such preventive safety
measures reduce the risk of starting the
power tool accidentally.
d)Store idle power tools out of the reach of
children and do not allow persons unfa-
miliar with the power tool or these
instructions to operate the power tool.
Power tools are dangerous in the hands
of untrained users.
e) Maintain power tools. Check for mis-
alignment or binding of moving parts,
breakage of parts and any other condi-
tion that may affect the power tool’s
operation. If damaged, have the power
tool repaired before use. Many accidents
are caused by poorly maintained power
tools.
f) Keep cutting tools sharp and clean.
Properly maintained cutting tools with
sharp cutting edges are less likely to
bind and are easier to control.
g)Use the power tool, accessories and tool
bits etc. in accordance with these
instructions, taking into account the
working conditions and the work to be
performed. Use of the power tool for
operations different from those
intended could result in a hazardous sit-
uation.
5) Service
a)Have your power tool serviced by a qual-
ified repair person using only identical
replacement parts. This will ensure that
the safety of the power tool is main-
tained.
Special safety instructions.
Safety Warnings common for Grind-
ing, Sanding, Wire Brushing, Polishing
or Abrasive Cutting Off operations
MSf843-1c, MSfo849-1c, MSfo852-1c,
MSfo852-1d, MSfo869-1c, MSfo869-1d,
MSfo870-1c, MSfo870-1d:
This power tool is intended to function as a
grinder and cut-off tool. Read all safety warn-
ings, instructions, illustrations and specifica-
tions provided with this power tool. Failure to
follow all instructions listed below may result
in electric shock, fire and/or serious injury.
This power tool is not suitable for sanding
with sanding discs, working with wire brushs
and polishing. Operations for which the
power tool is not designed may create a haz-
ard and cause personal injury.
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MSfov852-1, MSfov852-1-180:
This power tool is to be used as a grinder.
Observe all safety warnings, instructions,
illustrations and data supplied with the power
tool. Non-observance of the following
instructions can lead to electric shock, fire
and/or serious injury.
This power tool is not suitable for sanding
with sanding sheets, working with wire
brushes, polishing and cutting. Applications,
for which the power tool is not intended for,
can lead to hazardous situations and injury.
MSf843-1b, MSfo849-1b:
This power tool is to be used as a sander.
Read all safety warnings, instructions, illus-
trations and specifications provided with this
power tool. Non-observance of the following
instructions can lead to electric shock, fire
and/or serious injury.
This power tool is not suitable for grinding,
working with wire brushes, polishing and cut-
off grinding. Applications, for which the
power tool is not intended for, can lead to
hazardous situations and injury.
MSf843-1a:
This power tool is intended to function as a
polisher. Read all safety warnings, instruc-
tions, illustrations and specifications pro-
vided with this power tool. Failure to follow all
instructions listed below may result in electric
shock, fire and/or serious injury.
Operations such as grinding, sanding, wire
brushing or cutting-off are not recommended
to be performed with this power tool. Opera-
tions for which the power tool was not
designed may create a hazard and cause per-
sonal injury.
Do not use accessories which are not specifi-
cally designed and recommended by the tool
manufacturer. Just because the accessory can
be attached to your power tool, it does not
assure safe operation.
The rated speed of the accessory must be at
least equal to the maximum speed marked on
the power tool. Accessories running faster
than their rated speed can break and fly apart.
The outside diameter and the thickness of
your accessory must be within the capacity
rating of your power tool. Incorrectly sized
accessories cannot be adequately guarded or
controlled.
Application tools with threaded inserts must
match the grinder spindle thread. For acces-
sories mounted by flanges, the arbour hole of
the accessory must fit the locating diameter
of the flange. Accessories that do not match
the mounting hardware of the power tool will
run out of balance, vibrate excessively and
may cause loss of control.
Do not use a damaged accessory. Before each
use inspect the accessory such as abrasive
wheels for chips and cracks, backing pad for
cracks, tear or excess wear, wire brush for
loose or cracked wires. If power tool or acces-
sory is dropped, inspect for damage or install
an undamaged accessory. After inspecting
and installing an accessory, position yourself
and bystanders away from the plane of the
rotating accessory and run the power tool at
maximum no-load speed for one minute.
Damaged accessories will normally break
apart during this testtime.
Wear personal protective equipment. Depend-
ing on application, use face shield, safety
goggles or safety glasses. Where appropriate,
wear dust mask, hearing protectors, gloves
and workshop apron capable of stopping
small abrasive or workpiece fragments. The
safety glasses must be capable of protecting
against flying particles generated by the vari-
ous operations. Prolonged exposure to high
intensity noise may cause loss of hearing.
Keep bystanders a safe distance away from
work area. Anyone entering the work area
must wear personal protective equipment.
Fragments of workpiece or of a broken acces-
sory may fly away and cause injury beyond
immediate area of operation.
Hold the power tool by insulated gripping sur-
faces only, when performing an operation
where the cutting accessory may contact hid-
den wiring or its own cord. Cutting accessory
contacting a “live” wire may make exposed
metal parts of the power tool “live” and could
give the operator an electric shock.
Position the cord clear of the spinning acces-
sory. If you lose control of the power tool,
the cord may be cut or snagged and your hand
or arm may be pulled into the spinning acces-
sory.
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6en
Never lay the power tool down until the acces-
sory has come to a complete stop. The spin-
ning accessory may grab the surface and pull
the power tool out of your control.
Do not run the power tool while carrying it at
your side. Accidental contact with the spin-
ning accessory could snag your clothing, pull-
ing the accessory into your body.
Regularly clean the power tool’s air vents.
The motor’s fan will draw the dust inside the
housing and excessive accumulation of pow-
dered metal may cause electrical hazards.
Do not operate the power tool near flammable
materials. Sparks could ignite these materials.
Do not use accessories that require liquid
coolants. Using water or other liquid coolants
may result in electrocution or shock.
Kickback and related warnings
Kickback is a sudden reaction to a pinched or
snagged rotating wheel, backing pad, brush or
any other accessory. Pinching or snagging
causes rapid stalling of the rotating accessory
which in turn causes the uncontrolledpower
tool to be forced in the direction opposite of
the accessory’s rotation at the point of the
binding.
For example, if an abrasive wheel is snagged
or pinched by the workpiece, the edge of the
wheel that is entering into the pinch point can
dig into the surface of the material causing the
wheel to climb out or kick out. The wheel
may either jump toward or away from the
operator, depending on direction of the
wheel’s movement at the point of pinching.
Abrasive wheels may also break under these
conditions.
Kickback is the result of power tool misuse
and/or incorrect operating procedures or
conditions and can be avoided by taking
proper precautions as given below.
Maintain a firm grip on the power tool and
position your body and arm to allow you to
resist kickback forces. Always use auxiliary
handle, if provided, for maximum control over
kickback or torque reaction during start-up.
The operator can control torque reactions or
kickback forces, if proper precautions are
taken.
Never place your hand near the rotating
accessory. Accessory may kickback over
your hand.
Do not position your body in the area where
power tool will move if kickback occurs. Kick-
back will propel the tool in direction opposite
to the wheel’s movement at the point of snag-
ging.
Use special care when working corners, sharp
edges, etc. Avoid bouncing and snagging the
accessory. Corners, sharp edges or bouncing
have a tendency to snag the rotating accessory
and cause loss of control or kickback.
Do not attach a saw chain woodcarving blade
or toothed saw blade. Such blades create fre-
quent kickback and loss of control over the
power tool.
Safety warnings specific for grinding
and abrasive cutting-off operations
Use only wheel types that are recommended
for your power tool and the specific guard
designed for the selected wheel. Wheels for
which the power tool was not designed can-
not be adequately guarded and are unsafe.
The grinding surface of the centre depressed
wheels must be mounted below the plane of
the guard lip. An improperly mounted wheel
that projects through the plane of the guard
lip cannot be adequately protected.
The guard must be securely attached to the
power tool and positioned for maximum
safety, so the least amount of wheel is
exposed towards the operator. The guard
helps to protect operator from broken wheel
fragments, accidental contact with wheel and
sparks that could ignite clothing.
Wheels must be used only for recommended
applications. For example: do not grind with
the side of the cut-off wheel. Abrasive cut-off
wheels are intended for peripheral grinding;
side forces applied to these wheels may cause
them to shatter.
Always use undamaged wheel flanges that
are of correct size and shape for your selected
wheel. Proper wheel flanges support the
wheel thus reducing the possibility of wheel
breakage. Flanges for cut-off wheels may be
different from grinding wheel flanges.
Do not use worn down wheels from larger
power tools. Wheels intended for larger
power tools are not suitable for the higher
speed of a smaller tool and may burst.
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Additional safety warnings specific
for abrasive cutting off operations
Do not “jam” the cut-off wheel or apply exces-
sive pressure. Do not attempt to make an
excessive depth of cut. Overstressing the
wheel increases the loading and susceptibility
to twisting or binding of the wheel in the cut
and the possibility of kickback or wheel
breakage.
Do not position your body in line with and
behind the rotating wheel. When the wheel,
at the point of operation, is moving away
from your body, the possible kickback may
propel the spinning wheel and the power tool
directly at you.
When wheel is binding or when interrupting a
cut for any reason, switch off the power tool
and hold the power tool motionless until the
wheel comes to a complete stop. Never
attempt to remove the cut-off wheel from the
cut while the wheel is in motion otherwise
kickback may occur. Investigate and take cor-
rective action to eliminate the cause of wheel
binding.
Do not restart the cutting operation in the
workpiece. Let the wheel reach full speed and
carefully re-enter the cut. The wheel may
bind, walk up or kickback if the power tool is
restarted in the workpiece.
Support panels or any oversized workpiece to
minimize the risk of wheel pinching and kick-
back. Large workpieces tend to sag under
their own weight. Supports must be placed
under the workpiece near the line of cut and
near the edge of the workpiece on both sides
of the wheel.
Use extra caution when making a “pocket
cut” into existing walls or other blind areas.
The protruding wheel may cut gas or water
pipes, electrical wiring or objects that can
cause kickback.
Safety warnings specific for sanding
operations
Do not use excessively oversized sanding disc
paper. Follow manufacturers recommenda-
tions, when selecting sanding paper. Larger
sanding paper extending beyond the sanding
pad presents a laceration hazard and may
cause snagging, tearing of the disc, or kick-
back.
Safety warnings specific for wire
brushing operations
Be aware that wire bristles are thrown by the
brush even during ordinary operation. Do not
overstress the wires by applying excessive
load to the brush. The wire bristles can easily
penetrate light clothing and/or skin.
If the use of a guard is recommended for wire
brushing, do not allow any interference of the
wire wheel or brush with the guard. Wire
wheel or brush may expand in diameter due
to work load and centrifugal forces.
Further safety warnings
Offset grinding discs must be mounted in such
a manner that their grinding surface is 2 mm
below the bottom edge the of the wheel
guard. Grinding accessories that do not meet
these requirements cannot be adequately
covered off and are not permitted.
Use elastic spacers/liners when these are
provided with the grinding accessory.
Make sure that the application tools are
mounted in accordance with the manufactur-
ers instructions. The mounted application
tools must be able to rotate freely. Incorrectly
mounted application tools can become loose
during operation and be thrown from the
machine.
Handle grinding accessories carefully and
store them according to the manufacturer’s
instructions. Damaged grinding accessories
can develop cracks and burst during opera-
tion.
When using application tools with a threaded
insert, take care that the thread in the appli-
cation tool is long enough to hold the spindle
length of the power tool. The thread in the
application tool must match the thread on the
spindle. Incorrectly mounted application
tools can loosen during operation and cause
injuries.
Do not direct the power tool against yourself,
other persons or animals. Danger of injury
from sharp or hot application tools.
Beware of any concealed electric cables, gas
or water conduits. Check the working area
before commencing work, e. g. with a metal
detector.
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Use a stationary extraction system, blow out
ventilation slots frequently and connect a
residual current device (RCD) on the line side.
When working metal under extreme operat-
ing conditions, it is possible for conductive
dust to settle in the interior of the power
tool. The total insulation of the power tool
can be impaired.
Do not rivet or screw any name-plates or
signs onto the power tool. If the insulation is
damaged, protection against an electric shock
will be ineffective. Adhesive labels are recom-
mended.
Operate the power tool only off power sup-
plies whose voltage and frequency values
correspond with the values on the type plate
of the power tool.
If operating the power tool in a damp location,
it must be connected via a ground-fault cir-
cuit interrupter (GFCI). Using special rubber
protective gloves and footwear increase your
own safety.
NOTE: Such a device is also known as a
(PRCD = portable residual current device) or
(GFCI = ground fault circuit interrupter) or
(ALCI = appliance leakage current inter-
rupter) or (ELCB = earth leakage braker).
Always work with the auxiliary handle. The
auxiliary handle ensures reliable guiding of
the power tool.
Before putting into operation, check the
power connection and the power plug for
damage.
Recommendation: The tool should always be
supplied with power via a ground fault circuit
interrupter (GFCI) with a rated current of
30 mA or less.
Handling hazardous dusts.
When working with power
tools, such as when grinding,
sanding, polishing, sawing or for other work
procedures where material is removed, dusts
develop that are both hazardous to one’s
health and can spontaneously combust or be
explosive.
Contact with or inhaling some dust types can
trigger allergic reactions to the operator or
bystanders and/or lead to respiratory infec-
tions, cancer, birth defects or other reproduc-
tive harm.
Examples of such materials which contain
chemicals that can produce hazardous dusts,
are:
–Asbestos and materials containing asbes-
tos;
–Lead-containing coatings, some wood
types such as beech and oak;
–Minerals and metal;
–Silicate particles from bricks, concrete and
other materials containing stone;
–Solvent from solvent-containing paint/
varnish;
–Arsenic, chromium and other wood pre-
servatives;
–Materials for pesticide treatment on boat
and ship hulls;
–Stainless steel dust, metal dust and non-
ferrous metal dust;
To minimize the unwanted intake of these
materials:
–Use dust extraction matched appropriately
for the developing dust.
–Use personal protective equipment, such
as a P2 filter-class dust protection mask.
–Provide for good ventilation of the work-
place.
The risk from inhaling dusts depends on how
often these materials are worked. Materials
containing asbestos may only be worked on
by specialists.
Wood and light-metal dust can
cause spontaneous combus-
tion or explosions.
WARNING
CAUTION
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Hot mixtures of sanding dust and paint/var-
nish remainders or other chemical materials
in the filter bag or the vac filter can self-ignite
under unfavorable conditions, such as spark-
ing from sanding metal, continuous sunlight
or high ambient temperatures. To prevent
this:
–Avoid overheating the material being
sanded and the power tool.
–Empty the dust collector/container in time.
–Observe the material manufacturer’s
working instructions.
–Observe the relevant regulations in your
country for the materials being worked.
Hand/arm vibrations.
While working with this power
tool, hand/arm vibrations
occur. These can lead to health impairments.
The vibration emission value
during actual use of the power
tool can differ from the declared value
depending on the ways in which the tool is
used.
It is necessary to identify safety
measures to protect the oper-
ator that are based on an estimation of expo-
sure in the actual conditions of use.
The vibration emission level given in this
information sheet has been measured in
accordance with a standardised test given in
EN 60745 and may be used to compare one
tool with another. It may be used for a pre-
liminary assessment of exposure.
The declared vibration emission level repre-
sents the main applications of the tool. How-
ever if the tool is used for different
applications, with different accessories or
poorly maintained, the vibration emission
may differ. This may significantly increase the
exposure level over the total working period.
An estimation of the level of exposure to
vibration should also take into account the
times when the tool is switched off or when
it is running but not actually doing the job.
This may significantly reduce the exposure
level over the total working period.
Identify additional safety measures to protect
the operator from the effects of vibration
such as: maintain the tool and the accessories,
keep the hands warm, organisation of work
patterns.
WARNING
WARNING
WARNING
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Emission values for sound and vibration (Two-figure – specifications as per ISO 4871)
Sound emission MSf
843-1a
(**)
MSf
843-1b
(**)
MSf
843-1c
(**)
MSfo
849-1b
(**)
MSfo
849-1b
(**)
MSfov
852-1
(**)
MSfov
852-1-180
(**)
A-weighted emission pres-
sure power level measured
at the workplace
L
pA
(re 20 μPa), in decibels 87 92 92 90 92 94 94
Measuring uncertainty
K
pA
,
indecibels 333333 3
Measured A-weighted sound
power level
L
wA
(re 1 pW),
in decibels 76 81 81 79 81 83 83
Measuring uncertainty K
wA
,
indecibels 333333 3
C-weighted peak sound
pressure level measured at
the workplace
L
pCpeak
, in
decibels 91 98 95 95 100 97 97
Measuring uncertainty
K
pCpeak
, in decibels 3 3 3 3 3 3 3
Vibrations
Weighted acceleration, in
–m/s2
–ft/s20.5 1.6 2.1 6.9 4.5 14.8 0.6 2.0 4.3 14.1 3.6 11.8 3.6 11.8
Measuring uncertainty
K , in
–m/s2
–ft/s21.5 4.9 1.5 4.9 1.5 4.9 1.5 4.9 1.5 4.9 1.5 4.9 1.5 4.9
REMARK: The sum of the measured emission value and respective measuring inaccuracy represents the
upper limit of the values that can occur during measuring.
Wear hearing protection!
Measured values determined in accordance with the corresponding product standard.
Sound emission MSfo
852-1C
(**)
MSfo
852-1d
(**)
MSfo
869-1c
(**)
MSfo
869-1d
(**)
MSfo
870-1c
(**)
MSfo
870-1d
(**)
A-weighted emission pressure power
level measured at the workplace
L
pA
(re 20 μPa), in decibels 92 92 94 95 96 96
Measuring uncertainty
K
pA
,indecibels 333333
Measured A-weighted sound power level
L
wA
(re 1 pW), in decibels 81 81 83 84 85 85
Measuring uncertainty
K
wA
,indecibels 333333
C-weighted peak sound pressure level
measured at the workplace
L
pCpeak
,
in decibels 95 95 100 100 100 100
Measuring uncertainty K
pCpeak
,
indecibels 333333
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Extension cable.
If the use of an extension cord
is required, its length and con-
ductor cross-section must be adequate for the
application in order to prevent a voltage drop
in the extension cord, power loss and over-
heating of the power tool. Otherwise, the
extension cable and power tool are prone to
electrical danger, and the working efficiency is
decreased.
Recommended dimensions of extension
cables at an operating voltage of 120 V – sin-
gle-phase a. c., with only one power tool MSf,
MSfo, MSfov connected:
Intended use of the power tool:
Hand-guided angle grinder for use in
weather-protected environments with the
application tools and accessories recom-
mended by FEIN.
MSf843-1c, MSfo849-1c, MSfo852-1c,
MSfo852-1d, MSfo869-1c, MSfo869-1d,
MSfo870-1c, MSfo870-1d:
for dry grinding and cut-off grinding of metal
and stone.
MSfov852-1, MSfov852-1-180:
for dry grinding of metal and stone.
MSf843-1b, MSfo849-1b:
for dry grinding of metal and stone using elas-
tic sanding pads.
MSf843-1a:
for polishing metal and stone using polishing
tools.
Vibrations
Weighted acceleration, in
–m/s2
–ft/s24.3 14.1 4.6 15.0 3.9 12.8 3.9 12.8 3.8 12.5 4.7 15.4
Measuring uncertainty
K , in
–m/s2
–ft/s21.5 4.9 1.5 4.9 1.5 4.9 1.5 4.9 1.5 4.9 1.5 4.9
REMARK: The sum of the measured emission value and respective measuring inaccuracy represents the
upper limit of the values that can occur during measuring.
Wear hearing protection!
Measured values determined in accordance with the corresponding product standard.
Sound emission MSfo
852-1C
(**)
MSfo
852-1d
(**)
MSfo
869-1c
(**)
MSfo
869-1d
(**)
MSfo
870-1c
(**)
MSfo
870-1d
(**)
WARNING
Max. cable length, ft Max. cable length, m
≤ 100 100
–200 200 –300 ≤ 30 30 – 60 60 –100
Min. conductor size
A.W.G. Min. conductorcross- section, mm2
16 14 12 1.5 2.5 4.0
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12 en
Symbols.
Symbol, character Explanation
General prohibition sign. This action is prohibited.
Do not touch the rotating parts of the power tool.
Observe the instructions in the text or graphic opposite!
Make sure to read the enclosed documents such as the Instruction
Manual and the General Safety Instructions.
Before commencing this working step, pull the power plug out of the
socket. Otherwise there will be danger of injury if the power tool
should start unintentionally.
Use eye protection during operation.
Use ear protection during operation.
Use a dust mask during operation.
Use protective gloves during operation.
A surface that can be touched may be very hot and thus hazardous.
Gripping area
Switching on
Switching off
This symbol confirms the certification of this product for the USA and
Canada.
This sign warns of a directly imminent, dangerous situation. A false
reaction can cause a severe or fatal injury.
This sign indicates a possible dangerous situation that could cause severe
or fatal injury.
This sign warns of a possible dangerous situation that could cause injury.
Worn out power tools and other electrotechnical and electrical prod-
ucts should be sorted separately for environmentally-friendly recycling.
Product with basic insulation and exposed, conductive parts additionally
connected to the ground conductor.
~ or a. c. Alternating current
3~ Mains supply: three-phase alternating current
(**) may contain numbers and letters
DANGER
WARNING
CAUTION
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Character Unit of measurement,
national Explanation
n rpm; /min; min-1; r/min Rated speed
P W Electrical power
°Anglewidth
UV Electric voltage
fHz Frequency
I A Electric current intensity
m kg, lbs Mass
lft, in Length, width, height, depth, diameter or thread
Ø ft, in Diameter of a round part
K... Uncertainty
m/s2Vibrational emission value according to EN 60745
(vector sum of three directions)
m, s, kg, A, mm, V, W,
Hz, N, °C, dB, min, m/s2Basic and derived units of measurement from the
international system of units SI.
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Technical description and specifications.
Before mounting or replacing cutting tool or accessories, pull the power plug.
This preventive safety measure rules out the danger of injuries through acciden-
tal starting of the power tool.
Not all accessories described or shown in this instruction manual will be included with your-
power tool.
WARNING
Wheel guard
Lock-off
Auxiliary handle
Grinding disc
Fig. 1
On/Off switch
Gripping surface
MSfo852-1c, 1d
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MSfo870-1c, 1d
MSfo869-1c, 1d
MSfov852-1
MSfov852-1-180
MSfo849-1...
MSf843-1a, 1b, 1c
Fig. 2
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Type MSf843-1a (**) MSf843-1b (**) MSf843-1c (**) MSfo849-1b
(**) MSfo849-1c (**) MSfo849-1c (**)
Order number 7 820 ... 7 820 ... 7 820 ... 7 820 ... 7 820 ... 7 820 ...
Frequency 200 Hz 200 Hz 300 Hz 300 Hz 200 Hz 300 Hz
Type of current 3~ 3~ 3~ 3~ 3~ 3~
Rated speed 2200 rpm 4300 rpm 6500 rpm 4400 rpm 6200 rpm 6150 rpm
Power input 600 W 600 W 1100 W 1500 W 900 W 1500 W
Weight according to
EPTA-Procedure 01 7.9 lbs (3.6 kg) 7.9 lbs (3.6 kg) 7.9 lbs (3.6 kg) 10.1 lbs (4.6 kg) 11.2 lbs (5.1 kg) 11.2 lbs (5.1 kg)
Class of protection /I /I /I /I /I /I
Grinding/cutting disc (DIN ISO 603, DIN EN 12413)
ØD=Max. diameter
of grinding/cutting
disc – –– –5 in 125 mm – –7 3/16 in 180 mm 7 3/16 in 180 mm
Thickness of grind-
ing/cutting disc – –– –1/16 in – 1/4 in 1 mm – 6 mm – –1/16 in – 3/8 in 1 mm – 10 mm 1/16 in – 3/8 in 1 mm – 10 mm
Max. sanding pad
diameter 5 in 125 mm 5 in 125 mm 5 in 125 mm 7 3/16 in 180 mm 7 3/16 in 180 mm 7 3/16 in 180 mm
Diameter of mount-
ing hole 9/16 in 14 mm 9/16 in 14 mm 7/8 in 22.23 mm 9/16 in 14 mm 7/8 in 22.23 mm 7/8 in 22.23 mm
Thread for clamping
flange 5/8 in– 11UNC 5/8 in– 11UNC 5/8 in– 11UNC 5/8 in– 11UNC 5/8 in– 11UNC 5/8 in– 11UNC
Length of mounting
thread 19/32 in 15 mm 19/32 in 15 mm 3/4 in 20 mm 3/4 in 20 mm 3/4 in 20 mm 3/4 in 20 mm
Type MSfov852-1 (**) MSfov852-1 (**) MSfov852-1-180 (**) MSfo852-1c (**)
Order number 7 820 ... 7 820 ... 7 820 ... 7 820 ...
Frequency 200 Hz 300 Hz 300 Hz 200 Hz
Type of current 3~ 3~ 3~ 3~
Rated speed 9200 rpm 8800 rpm 7450 rpm 6300 rpm
Power input 1100 W 1900 W 1900 W 1100 W
Weight according to EPTA-
Procedure 01 11.5 lbs (5.2 kg) 11.5 lbs (5.2 kg) 11.7 lbs (5.3 kg) 13.9 lbs (6.3 kg)
Class of protection /I /I /I /I
Grinding/cutting disc (DIN ISO 603, DIN EN 12413)
ØD=Max. diameter of
grinding/cutting disc 5 in 125 mm 5 in 125 mm 7 3/16 in 180 mm 7 3/16 in 180 mm
Thickness ofgrinding/cutting
disc 1/16 in – 1/4 in 1 mm – 6 mm 1/16 in – 1/4 in 1 mm – 6 mm 1/16 in – 3/32 in 1 mm – 7 mm 1/16 in – 3/8 in 1 mm – 10 mm
Max. sanding pad diameter –
–– –– –7 3/16 in 180 mm
Diameter of mounting hole 7/8 in
22.23 mm 7/8 in 22.23 mm 7/8 in 22.23 mm 9/16 in 14 mm
Thread for clamping flange 5/8 in–
11UNC 5/8 in– 11UNC 5/8 in– 11UNC 5/8 in– 11UNC
Length of mounting thread 21/32 in
17 mm 21/32 in 17 mm 3/4 in 20 mm 3/4 in 20 mm
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Type MSfo852-1c
(**) MSfo852-1d (**) MSfo852-1d (**) MSfo869-1c (**) MSfo869-1c (**) MSfo869-1d (**)
Order number 7 820 ... 7 820 ... 7 820 ... 7 820 ... 7 820 ... 7 820 ...
Frequency 300 Hz 200 Hz 300 Hz 200 Hz 300 Hz 200 Hz
Type of current 3~ 3~ 3~ 3~ 3~ 3~
Rated speed 6400 rpm 8500 rpm 8500 rpm 6350 rpm 6500 rpm 8500 rpm
Power input 1900 W 1100 W 1900 W 1800 W 3100 W 1800 W
Weight according to
EPTA-Procedure 01 13.9 lbs (6.3 kg) 13.0 lbs (5.9 kg) 13.0 lbs (5.9 kg) 17.0 lbs (7.7 kg) 17.0 lbs (7.7 kg) 16.3 lbs (7.4 kg)
Class of protection /I /I /I /I /I /I
Grinding/cutting disc (DIN ISO 603, DIN EN 12413)
ØD=Max. diameter
of grinding/cutting
disc 9 3/16 230 7 3/16 in 180 mm 7 3/16 in 180 mm 9 3/16 230 9 3/16 230 7 3/16 in 180 mm
Thickness of grind-
ing/cutting disc 1/16 in – 5/16 in 1 mm – 8 mm 1/16 in – 3/8 in 1 mm – 10 mm 1/16 in – 3/8 in 1 mm – 10 mm1/16 in – 5/16 in 1 mm – 8 mm1/16 in – 5/16 in 1 mm – 8 mm 1/16 in – 3/8 in 1 mm – 10 mm
Max. sanding pad
diameter 7 3/16 in 180 mm 7 3/16 in 180 mm 7 3/16 in 180 mm 7 3/16 in 180 mm 7 3/16 in 180 mm 7 3/16 in 180 mm
Diameter of mount-
ing hole 7/8 in 22.23 mm 7/8 in 22.23 mm 7/8 in 22.23 mm 7/8 in 22.23 mm 7/8 in 22.23 mm 7/8 in 22.23 mm
Thread for clamping
flange 5/8 in– 11UNC 5/8 in– 11UNC 5/8 in– 11UNC 5/8 in– 11UNC 5/8 in– 11UNC 5/8 in– 11UNC
Length of mounting
thread 3/4 in 20 mm 3/4 in 20 mm 3/4 in 20 mm 3/4 in 20 mm 3/4 in 20 mm 3/4 in 20 mm
Type MSfo869-1d (**) MSfo870-1c (**) MSfo870-1c (**) MSfo870-1d (**) MSfo870-1d (**)
Order number 7 820 ... 7 820 ... 7 820 ... 7 820 ... 7 820 ...
Frequency 300 Hz 200 Hz 300 Hz 200 Hz 300 Hz
Type of current 3~ 3~ 3~ 3~ 3~
Rated speed 8600 rpm 6500 rpm 6600 rpm 8600 rpm 8600 rpm
Power input 3100 W 2200 W 3700 W 2200 W 3700 W
Weight according to
EPTA-Procedure 01 16.3 lbs (7.4 kg) 18.8 lbs (8.5 kg) 18.8 lbs (8.5 kg) 18.1 lbs (8.2 kg) 18.1 lbs (8.2 kg)
Class of protection /I /I /I /I /I
Grinding/cutting disc (DIN ISO 603, DIN EN 12413)
ØD=Max. diameter of
grinding/cutting disc 7 3/16 in 180 mm 9 3/16 230 9 3/16 230 7 3/16 in 180 mm 7 3/16 in 180 mm
Thickness of grinding/
cutting disc 1/16 in – 3/8 in 1 mm – 10 mm 1/16 in – 5/16 in 1 mm – 8 mm 1/16 in – 5/16 in 1 mm – 8 mm 1/16 in – 3/8 in 1 mm – 10 mm 1/16 in – 3/8 in 1 mm – 10 mm
Max. sanding pad
diameter 7 3/16 in 180 mm 7 3/16 in 180 mm 7 3/16 in 180 mm 7 3/16 in 180 mm 7 3/16 in 180 mm
Diameter of mounting
hole 7/8 in 22.23 mm 7/8 in 22.23 mm 7/8 in 22.23 mm 7/8 in 22.23 mm 7/8 in 22.23 mm
Thread for clamping
flange 5/8 in– 11UNC 5/8 in– 11UNC 5/8 in– 11UNC 5/8 in– 11UNC 5/8 in– 11UNC
Length of mounting
thread 3/4 in 20 mm 3/4 in 20 mm 3/4 in 20 mm 3/4 in 20 mm 3/4 in 20 mm
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Assembly instructions.
Before mounting or replacing cutting tool or accessories, pull the power plug.
This preventive safety measure rules out the danger of injuries through acci-
dental starting of the power tool.
Mounting the auxiliary handle
(figure 3).
Depending on the working manner, screw
the auxiliary handle right or left on the power
tool.
Mounting the wheel guard (figure 4).
For all work except for cut-off
grinding.
Loosen the clamping screw.
Mount the wheel guard.
Turn the wheel guard to the requested work-
ing position, then clamp the wheel guard with
the clamping screw.
Mounting the cut-off wheel guard (figure 5)
For cut-off grinding opera-
tions, always work with the
cut-off wheel guard mounted.
Mounting takes place as described under
“Mounting the wheel guard”.
WARNING
Auxiliary handle
Fig. 3
WARNING
Wheel guard
Clamping screw
Fig. 4
WARNING
Fig. 5 Wheel guard
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Mounting the wheel guard MSfov852-1,
MSfov852-1-180 (figure 6)
Remove the 3 hexagon nuts using the open-
jawed wrench SW 8.
Mount the wheel guard on the set screws in
the required working position.
Fasten the wheel guard with the 3 washers
and hexagon nuts.
Mounting the hand protection
(figure 7).
Unscrew the auxiliary handle.
Mount hand protection and tighten it by
screwing in the auxiliary handle.
Connecting to the power supply.
The power tool is provided ex works without
a plug.
Recommendation: As a protective measure
against overload, equip the power tool with a
matching FEIN motor-protection plug.
The plug is to be installed by a
qualified electrician.
Before starting operation,
check the rotation direction of
the output shaft without a grinding accessory
mounted, and have it corrected if required.
The rotation direction is marked on the
power tool with an arrow.
The output voltage and fre-
quency of the power supply
must correspond with the data on the type
plate of the power tool.
Using FEIN frequency converters ensures
reliable operation of the power tool.
Follow the steps in the operating instruc-
tions of the frequency converter.
Hexagon nuts
Washers
Fig. 6
Wheel guard
Hand protection
Fig. 7
WARNING
WARNING
WARNING
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Changing the tool.
Before mounting or replacing cutting tool or accessories, pull the power plug.
This preventive safety measure rules out the danger of injuries through acciden-
tal starting of the power tool.
Mounting a grinding disc (figure 8).
Hold the drive shaft in place using the open-
jawed wrench SW 17.
MSfov852-1, MSfov852-1-180: Hold the spin-
dle in place using the Allen key.
Loosen the clamping flange with the pin-type
face wrench.
Unscrew the clamping flange.
Replace the used-up grinding accessory
or insert a new one.
Pay attention that the grinding accessory
is properly centered between the sup-
port flange and the clamping flange.
Hold the drive shaft in place using the open-
jawed wrench SW 17. Manually screw on the
clamping flange again.
MSfov852-1, MSfov852-1-180: Hold the spin-
dle in place using the Allen key. Manually
screw on the clamping flange again.
Tighten the clamping flange with the pin-type
face wrench.
Mounting a polishing tool.
Mount an elastic sanding plate to the power
tool as described under “Schleifscheibe mon-
tieren”.
Fasten the polishing tool to the sanding plate.
WARNING
Clamping flange
Face spanner
Fig. 8
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