MIRKA PROS User manual

en Operating Instructions 4–10
de Betriebsanleitung 11–17
fr Notice d´utilisation 18–24
it Istruzioni sull´uso 25–31
sv Bruksanvisning 32–38
no Brugsanvisning 39–45
da Brugsanvisning 46–52
 Käyttöohje 53–59
es Instrucciones de manejo 60–66
nl Gebruiksaanwijzing 67–73
ru Руководство по эксплуатации 74–80
pt Instruções de uso 81–87
et Kasutusjuhend 88–94
lt Naudojimo instrukcijos 95–101
125 mm (5 in.) & 150 mm (6 in.)
MIRKA® PROS

2
Exploded view

3
Parts list
Item No Part No Part Name Kit Spare Part Code
101 MPP0101 HOUSING
102 MPP0102 MARK PLATE
103 MPP0103 MODEL STICKER
201 MPP0201 REGULATOR UNIT C MPP9003 8995690031
202 MPP0202 VALVE STEM C
203 MPP0203 O-RING C
204 MPP0204 O-RING C
205 MPP0205 RETAINING RING C
206 MPP0206 SEAL E MPP9005 8995690051
207 MPP0207 TIP VALVE E
208 MPP0208 VALVE SPRING E
209 MPP0209 INLET CONNECTION E
210 MPP0210 SPRING PIN H (MPP9008 / MPP9009 / MPP9015)
211 MPP0214 LEVER 2.5 mm H MPP9015 8995690151
MPP0211 LEVER 5.0 mm H MPP9008 8995690081
MPP0213 LEVER 8.0 mm H MPP9009 8995690091
212 MPP0212 COVER MPP0212 8995602121
301 MPP0301 RETAINING RING B MPP9002 8995690021
302 MPP0302 BEARING B (See. 301)
303 MPP0303 FRONT RING
304 MPP0304 SPRING PIN
305 MPP0305 FRONT BEARING PLATE
306 MPP0306 CYLINDER
307 MPP0307 O-RING
308 MPP0308 VANES F MPP9006 8995690061
309 MPP0309 ROTOR F
310 MPP0310 REAR END PLATE
311 MPP0311 DUST SEAL B (See. 301)
312 MPP0312 O-RING
313 MPP0313 LOCK RING
314 MPP0314 ROTOR KEY
315 MPP0326 SHAFT BALANCER 2.5 mm Orbit 130 g PAD I MPP9017 8995690171
MPP0315 SHAFT BALANCER 5.0 mm Orbit 130 g PAD I MPP9018 8995690181
MPP0328 SHAFT BALANCER 8.0 mm Orbit 130 g PAD I MPP9019 8995690191
MPP0327 SHAFT BALANCER 5.0 mm Orbit 100 g PAD I MPP9016 8995690161
316 MPP0316 BEARING A MPP9001 8995690011
317 MPP0317 BEARING DUST SEAL A
318 MPP0318 BEARING SHIELD A
319 MPP0319 RETAINING RING A
320 MPP0320 SPINDLE MPP0320 8995603201
321 MPP0321 BRAKE SEAL MPP0321 8995603211
323 – 6" H&L PAD W/ HOLES 130 g 8292605011
– 5" H&L PAD W/ HOLES 100 g 8292502011
324 MPP0324 BEARING B (See. 301)
325 MPP0325 BALANCE SCREWS
401 MPP0401 CONNECTOR
402 MPP0402 MUFFLER CONNECTION
403 MPP0403 MUFFLER D MPP9004 8995690041
404 MPP0404 NOZZLE D
405 MPP0405 MUFFLER D
406 MPP0406 MUFFLER CAP D
407 MPP0407 VACUUM ADAPTER-CENTRAL VAC A G MPP9007 8995690071
408 MPP0408 O-RING G
409 MPP0409 SWIVEL GRIP G
410 MPP0410 SWIVEL CONNECTOR G
411 MPP0411 O-RING
412 MPP0412 PADWRENCH MPP0412 8995604121

4
Declaration of conformity
KWH Mirka Ltd
66850 Jeppo, Finland
declare on our sole responsibility that the product MIRKA® PROS 125 mm (5 in.) & 150 mm (6 in.)
(See “Product Conguration/Specications”Table for particular Model) to which this declaration relates
is in conformity with the following standard(s) or other normative document(s) EN ISO 15744:2008.
Following the provisions of 89/392/EEC as amended by 91/368/EEC & 93/44/EEC 93/68/EEC Directives
and consolidating Directive 2006/42/EC
Important
Read these safety and operating instructions carefully before installing, operating or maintaining this
tool. Keep these instructions in a safe accessible location.
Required Personal Safety Equipment
Operating Instructions
Includes – Exploded view, Parts list, Spare parts,
Declaration of conformity, Important, Warning, Caution,
Product conguration/Specication, Proper use of tool,
Operating instructions, Safety precautions, Maintenance,
Trouble Shooting Guide
Manufacturer/Supplier
KWH Mirka Ltd
66850 Jeppo, Finland
Tel. [phone]
Fax [phone]
www.mirka.com
Place and date of issue
Ralf Karlström15.04.2013 Jeppo
Name Signature or equivalent marking of authorized person
Warning: Potential hazardous situation that may result in death or serious injury and/or
property damage.
Caution: Potential hazardous situation that may result minor or moderate injury and/or
property damage.
Safety Glasses Ear Protection Safety Gloves Face Mask

5
Please Read and Comply with
1) General Industry Safety & Health Regulations, Part 1910, OSHA 2206, available from: Superintendent of
Documents; Government Printing Oce; Washington DC 20402
2) Safety Code for Portable Air Tools, ANSI B186.1 available from: American National Standards Institute,
Inc.; 1430 Broadway; New York, New York 10018
3) State and Local Regulations
WARNING
• Alwayswearrequiredpersonalsafetyprotectioninaccordancewithmanufacturer’sinstructionand
local/national standards while using this tool.
• Donotuseapowertoolwhileyouaretiredorundertheinuenceofdrugs,alcoholormedication.
• ReadtheMaterialsSafetyDataSheet(MSDS)fortheworkingsurface.
• Usethetoolwithdustextraction.Suiteddustextractionunitwillreducehazardousdust.
• Donotoverreach.Keepproperfootingandbalanceatalltimes.
• Donotwearlooseclothingorjewellery.Keepyourhair,clothingandglovesawayfrommovingparts.
Loose clothes, jewellery or long hair can be caught in moving parts.
• Ifanyphysicalhand/wristdiscomfortisexperienced,Stopworkingandseekmedicalattention.Hand,
wrist and arm injury may result from repetitive work, motion and overexposure to vibrations.
• Donotoperatepowertoolsinexplosiveatmospheres,suchasinthepresenceofammableliquids,
gases or dust.
• Thetoolisnotelectricallyinsulated.Checkworkareaforliveelectricity,gaspipes,etc.beforeoperation.
CAUTION
• Preventunintentionalstarting.
• Removepadwrenchbeforeconnectingthetooltotheairsupply.
• Keepworkareacleanandwelllit.
• Alwaysensurethattheworkpiecetobesandedisrmlyxed.
• Beforechangingabrasivealwaysdisconnecttheairsupply.

6
Specications subject to change without prior notice.
* The values stated in the table are from laboratory testing in conformity with stated codes, standards and
are not sucient for risk evaluation. Values measured in a particular work place may be higher than the
declared values. The actual exposure values and amount of risk or harm experienced to an individual is
unique to each situation and depends upon the surrounding environment, the way in which the individual
works, the particular material being worked, work station design as well as upon the exposure time and
the physical condition of the user. KWH Mirka, Ltd. cannot be held responsible for the consequences of
using declared values instead of actual exposure values for any individual risk assessment.
Further occupational health and safety information can be obtained from the following websites:
http://europe.osha.eu.int (Europe) or http://www.osha.gov (USA)
Product conguration/Specication: MIRKA® PROS
MIRKA®
PROS 680CV
8 mm
(5/16)
Central
vacuum
150
(6)
0.948
(2.09)
102
(4.02)
229
(9.02)
75.9 485 3.37 0.83
Pneumatic Random Orbital Sander 12,000 rpm
Model Name
MIRKA®
PROS 550CV
MIRKA®
PROS 625CV
Orbit
mm/
(inch)
5 mm
(3/16)
2.5 mm
(3/32)
Vacuum
type
Central
vacuum
Central
vacuum
Pad
Size
mm
(inch)
125
(5)
150
(6)
Product
Net
Weight kg
(pounds)
0.888
(1.96)
0.900
(1.98)
Height
mm
(inch)
102
(4.02)
102
(4.02)
Length
mm
(inch)
229
(9.02)
229
(9.02)
Noise
Level
dBA
74.1
72.9
Air
Consumtion
LPM (scfm)
485
485
Vibration
Level* m/s2
2.44
2.27
Uncertainly
K*
m/s2
0.75
0.73
MIRKA®
PROS 650CV
5 mm
(3/16)
Central
vacuum
150
(6)
0.925
(2.04)
102
(4.02)
229
(9.02)
74.8 485 3.20 0.81
The noise test is carried out in accordance with EN ISO 15744:2008 – Hand-held non-electric power tools – Noise measurement
code – Engineering method (grade 2).
The vibration test is carried out in accordance with EN 28662-1 Hand-held portable power tools – Measurement of vibration at
the handle, Part 1: General and EN ISO 28927-3:2009 Hand-held portable power tools – Test methods for evaluation of vibration
emission – Part 3: Polishers and rotary, orbital and random orbital sanders.

7
Proper Use of Tool
This sander is designed for sanding all types of materials i.e. metals, wood, stone, plastics, etc. using
abrasive designed for this purpose. Do not use this sander for any other purpose than specied, without
consulting your MIRKA dealer. Only use MIRKA backing pad (125 mm (5") Code: 8292502011, 150 mm
(6") Code: 8292605011) that are designed for optimal performance with the brake seal. Never mount
a backing pad without distance washer. Other backing pad may reduce performance and will increase
vibrations.
Operating instructions
The tool is intended to be operated as a hand held tool. The tool can be used in any position. The operator
mustensuretohaveasecurepositionwitharmgripandfootingonsolidoor.Note!Thesandercan
develop a torque reaction when started.
The tool is equipped with a cover to protect the operator from exhaust air. To attach air supply, lift up the
cover and connect air supply, close the cover before operating the tool. Use a clean lubricated air supply
that will give a measured air pressure at the tool of 6.2 bar (90 psig) when the tool is running with the
lever fully pressed. It is recommended to use an approved 10 mm (3/8 in.) x 8 m (25 ft) maximum length
air hose. The tool should be connected to the air supply as shown in Figure 1.
Do not connect the tool to the compressed air system without incorporating an easy to reach and operate
air shut o valve. It is strongly recommended that an air lter, regulator and lubricator (FRL) are used as
shown in Figure 1 as this will supply clean, lubricated air at the correct pressure to the tool. Details of
such equipment can be obtained from your supplier. If such equipment is not used the tool should be
manually lubricated.
To manually lubricate the tool, disconnect the air hose and put 2 to 3 drops of supplied oil or Wurth art. nr.
08930505 into the air connection on the tool. Reconnect the tool to the air supply and run the tool slowly
for a few seconds to allow air to circulate the oil. If the tool is used frequently, lubricate it on a daily basis.
Lubricate the tool before longer storage or if the tool slows down or loses power.
It is recommended that the air pressure at the tool is 6.2 bar (90 psig) while the tool is running. The tool
can run at lower pressures but never higher than 6.2 bar (90 psig).
Filter
Regulator
Figure 1
Lubricator
Air hose to
your power tool

8
Safety Precautions
• Readallinstructionsbeforeusingthistool.Alloperatorsmustbefullytrainedinusageandsafetyofthistool.
• Allmaintenancemustbecarriedoutbytrainedpersonnel.Forservice,contactMirkaauthorizedservicecenter!
• Alwayswearrequiredsafetyequipment(seewarnings).
• Theoperatormustensuretohaveasecurepositionwitharmgripandfootingonsolidoor.
• Alwaysensurethattheworkpiecetobesandedisrmlyxed.
• Checktool,backingpad,hoseandttingsregularlyforwear.
• Alwayscareforworksafety,nevercarry,storeorleavethetoolunattendedwiththeairsupplyconnected.
• Vacuumunitdustcollectionbagshouldbecleanedorreplaceddaily.Dustcanbehighlycombustible.
Cleaning or replacing of bag also assures optimum performance.
• Donotexceedmaximumrecommendedairpressure6.2bar(90psi).
• Takecaretoavoidentanglementwiththemovingpartsofthetoolwithclothing,ties,hair,cleaningrags,etc.
• Keephandsclearofthespinningpadduringuse.
• Ifthetoolappearstomalfunction,removefromuseimmediatelyandarrangeforserviceandrepair.
• Beforechangingabrasivealwaysdisconnectedtheairsupply.Becarefultoproperlyattachandcenter
the abrasive to the backing pad.
Maintenance
Alwaysdisconnectairsupplybeforemaintenance!
UseonlyoriginalMirkaspareparts!
Replacing backing pad
• Insertpadwrenchbetweenthebackingpadandbrakesealtoholdthespindlenut.
• Turnthebackingpadcounterclockwisetoremoveit.
• Mountandtightennewbackingpadwithtwowashers.
• Removethepadwrench.
Replacing the brake seal
Note!Toomuchvacuuminyourdustextractionsystemmaycausethebrakesealtomalfunction.
• Dismountthebackingpadasdescribedabove.
• Pulltheoldbrakesealfromitsgroove.
• Applythenewbrakesealinthegroove.
• Mountthebackingpadasdescribedabove.
• Checkbrakesealfunction.Bychangingthenumberofwashersbetweenthespindleandbackingpad,
the eect of the brake seal can be adjusted.
Replacing the muer kit
• Liftupthecover.
• Removethemuercupbypushingithardtothesideandinsertascrewdriverbetweenthecupand
the hexnut, twist the screwdriver to release the cup from the housing.
• Reattachnewmuertothehousing.
Further service
Service must always be performed by trained personnel. To keep the tool warranty valid and to ensure
thetoolsafetyandfunctionit’srequiredthatserviceareperformedbyMirkaauthorizedservicecenter.
To locate your local Mirka authorized service center, contact Mirka Customer service or your Mirka dealer.

9
Symptom Possible Cause Solution
Troubleshooting guide
Low power and/
or low free speed.
Turn the speed control to desired speed.Speed control set to low speed.
Check air supply (according to operating instructions).Low air pressure.
Cleanorreplacethemuer.Cloggedmuer.
Clean or replace the screen.Plugged air inlet screen.
Check motor assembly and alignment.
Check air inlet o-ring alignment on motor assembly.
Internal air leakage in the motor
housing.
Air leakage at the
speed control.
Vibration/rough
operation.
Install a complete set of new vanes and rotor
(Code: MPP9006).
Worn or broken vanes.
Contact Mirka authorized service center.Housing cracked or damaged.
Replace the worn or broken bearing (Code: MPP9001).Worn or broken spindle bearing.
Disassemble, inspect and replace worn or damaged
parts.
Dirty, broken or bent valve spring,
valve or valve seat.
Remove air inlet connection and reassemble the air valve
(207), with the valve stem (202) in its upper position.
Incorrect assembly of air valve.
Only use Mirka backing pad (125 mm (5")
Code: 8292502011, 150 mm (6") Code: 8292605011).
Incorrect backing pad.
Only use abrasive and/or interface designed for the
machine.
Addition of interface or other
material.
Replace the pad. Only use Mirka backing pad
(125 mm (5") Code: 8292502011, 150 mm (6")
Code: 8292605011).
Damaged backing pad.
Replace the worn or broken bearings.Worn or broken motor bearing(s).
Lower the vacuum of your dust extraction unit.Toomuchvacuumonaatsurface
can increase vibrations.
Increasemotorspeedwithowregulator,max6.2bar.Low motor speed.

10
Reducing vibrations when sanding with padsaver or interface
When padsaver or interface is used for sanding the set-up may increases the level of vibrations. Your
MIRKA tool has a feature allowing you to reduce these vibrations. To reduce vibrations that may appear
when a padsaver or Interface is used please follow these steps:
1) Disconnect air supply / power cable.
2) Remove backing pad.
3) Add hex nuts and screws in accordance to the table below, tighten to 2 Nm.
Example Pictures
1. Machine conguration out of box. 2. Machine conguration for use with
padsaver or interface.
3. Machine conguration out of box. 4. Machine conguration for use with
padsaver or interface.
Model
550
625
650
680
1
1
1
3
A
-
-
-
-
A
-
-
-
-
B
X
X
X
X
B
-
-
-
-
C
X
X
X
-
C
-
-
-
-
D
-
-
-
X
D
-
-
-
-
E
-
-
-
X
E
-
-
-
-
Picture Set-up out of box
Screw Hex nut
2
2
2
4
A
X
-
X
X
A
X
-
X
-
B
X
X
X
X
B
X
X
X
-
C
X
X
X
X
C
X
X
X
-
D
-
-
-
X
D
-
-
-
-
E
-
-
-
X
E
-
-
-
-
Picture Set-up for padsaver / interface
Screw Hex nut