Mirka OS 353CV 81 - Sander

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USER MANUAL OS 353CV 81 Mirka

Mirka ^® Orbital Sander

70 mm x 198 mm (3 x 8"), 75 mm x 100 mm (3 x 4")

& 81 mm x 133 mm (3 x 5")

Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 1

natural_image Exterior view of a MIRKA industrial sandblasting machine (no signage or text on body)

Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 2

natural_image Stylized illustration of a bulldog in aggressive posture (no text or symbols)

Mirka ^® Orbital Sander

70 mm x 198 mm (3 x 8"), 75 mm x 100 mm (3 x 4") & 81 mm x 133 mm (3 x 5")

ar 10-13

Original Instructions

Parts List - Mirka© OS 70x198mm

ItemP/NDescriptionQty.
1MPA0040 EXTERNAL RETAINING RING 1
2MPA0021 BEARING - 2 SHIELDS 1
3MPB0017 REAR ENDPLATE 1
4 MPA0005 CYLINDER ASSEMBLY 1
5 MPA0042 O-RING 1
6MPB0005 ROTOR 1
7 MPA0010 VANE 5
8 MPA0041 WOOD RUFF KEY 1
9 MPB0016 FRONT ENDPLATE 1
10 MPA0019 BEARING - 2 SHIELDS1
11 MPA0045 O-RING 1
12MPA0001 LOCK RING1
13MPB0531 SHAFT BALANCER 1
14 MPA0122 FILTER1
15 MPA0121 DUCK BILL CHECK VALVE1
16MPA0120 VALVE RETAINER1
17 MPA0090 RETAINING RING 1
18 MPA0938 DOUBLE ROW ANGULAR CONTACT BEARING - 1 SEAL1
19 MPA0016 SPACER 0.2 THK1
20 MPA0017 BELLEVILLE WASHER 1
21MPA0018 RETAINING RING 1
22MPA0113 SPINDLE ASSEMBLY1
23MPA0079 SPACER 0.2 THK1
24 MPA0080 SPACER 0.4 THK1
25 MPA1697 THROTTLE LEVER1
26MPA0031 LEVER SPRING PIN1
27MPA0288 GRIP, 2 1/2 in.OPT
MPA0289 GRIP, 2 3/4 inOPT
MPA0290 GRIP, 3 in.1
28 MPA0015 VALVE SLEEVE1
29 MPA0227 HOUS NG1
30 MPA0008 VALVE STEM ASSEMBLY1
31MPA0043 O-RING 1
32MPB0014 SPEED CONTROL1
33 MPA0039 INTERNAL RETAINING RING1
34 MPA0768 SCREW4
35 MPA0076 WASHER 0.8 THK 4
36MPA0071 THREADED INSERT2
37 MPA0770 SCREW2
38MPD0051 NON-VACUUM SHROUD2
39 MPA0169 SHROUD SEAL1
40MPD0052 CVDB SHROUD1
41MPC0230 PAD SUPPORT2
42 MPA0766 SCREW4
43MPB0534 PAD BACKING1
44 MPA0767 SCREW4
45 MPA0078 SCREW1
46N/ASCREEN ABRASIVE MOLDED INSERT PAD LAYOUT1
47 MPA0864 HEX WRENCH1
48 MPA0032 MUFFLER INSERT (for 10,000 RPM Machines)2
49 MPA0038 MUFFLER PLATE1
50 MPA0166 MUFFLER HOUSING1
51 MPA0009 VALVE SEAT1
52MPA0007 VALVE1
53 MPA0014 VALVE SPRING1
54 MPA0013 INLET BUSHING ASSEMBLY1
55 MPA0044 O-RING 2
56 MPA0722 10,000 RPM DB RETAINER1
57MPA0410 ASSEMBLY FOR 1 in./28 mm HOSE SuperVAC DB SWIVEL EXHAUST FITTING1
58MPA0409 ASSEMBLY FOR 3/4 in./19 mm HOSE SuperVAC SWIVEL EXHAUST FITTINGOPT
59 MPA0778 1 in./28 mm HOSE SEAL1
60 MPA0854 3/4 in./19 mm HOSE SEALOPT
61MPA0931 MIRKA 1 in./28 mm HOSE SEAL TAG W/INSTRUCTION1
62MPA0092 1 in./28 mm OS SuperVAC CV SWIVEL EXHAUST ASSEMBLY1
63MPA0298 OS SuperVAC 3/4 in. CV SWIVEL EXHAUST ASSEMBLYOPT
64 MPA0048 FLANGED NUT1
65 MPA0047 WASHER1
66MPA0769 SCREW1
67MPA0300 ∅ 3/4 in. VAC HOSE TO ∅ 3/4 in. x 1 in./28 mm ADAPTER COUPLING AND AIRLINE ASSMOPT
68MPA0412 ∅ 1 in. VAC HOSE TO DOUBLE BAG FITTING AND AIRLINE ASSY1
MPA0411 ∅ 3/4 in. VAC HOSE TO DOUBLE BAG FITTING AND AIRLINE ASSYOPT
69 MPA0465 10 PACK OF VACUUM BAG INSERTS1
70 MPA0658 VACUUM BAG1
71 MPA2541 FRONT BEARING DUST SHIELD1
72 MPA2542 SPINDLE BEARING DUST SHIELD1

Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 1

text_image G 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 G E G B J 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 F A C L K TO INLET TO VACUUM SYSTEM FOR CENTRAL VAC ITEM TORQUE SETTING Nm (in.-lbs.) 12 6.2 - 7.3 (55 - 65) 31 2.2 - 2.8 (20 - 25) 40 2.8 - 3.4 (25 - 30) 42 2.8 - 3.4 (25 - 30) 43 10.7 - 11.8 (95 - 105) 48 1.8 - 2.3 (16 - 20) 52 6.8 - 8.1 (60 - 72) 55 4.0 - 5.4 (36 - 48) 68 3.4 - 3.9 (30 - 35)
ITEMTORQUE SETTING Nm (in.-Ibs.)
126.2 - 7.3 (55 - 65)
312.2 - 2.8 (20 - 25)
402.8 - 3.4 (25 - 30)
422.8 - 3.4 (25 - 30)
4310.7 - 11.8 (95 - 105)
481.8 - 2.3 (16 - 20)
526.8 - 8.1 (60 -72)
554.0 - 5.4 (36 - 48)
683.4 - 3.9 (30 - 35)

Parts List - Mirka© OS 75x100mm

Item Part No. Description Qty.
1MPA0040 RETAINING RING 1
2MPA0021 BEARING1
3MPB0017 REAR ENDPLATE 1
4 MPA0005 CYLINDER ASSEMBLY 1
5 MPA0042 O-RING 1
6MPB0005 MACHINED ROTOR 1
7 MPA0010 VANE 5
8 MPA0041 KEY 1
9 MPB0016 FRONT ENDPLATE 1
10MPA0019 BEARING1
11MPA0045 ORING 1
12MPA0001 LOCK RING1
13MPB0102 3 mm (1/8 in.) ORBIT AirSHIELDTM SHAFT BALANCER1
14MPA0122 FILTER1
15MPA0121 VALVE1
16MPA0120 RETAINER1
17MPA0107 RETAINING RING 1
18MPA0162 BEARING1
19MPA0196 HIM1
20MPA0161 BEARING1
21MPA0108 SHIM1
22MPA0126 WASHER1
23MPA0177 RETAINING RING 1
24MPA0163 SPINDLE ASSEMBLY1
25MPA0080 SPACER (0,4 mm thick)1
26MPA0079 SPACER (0,2 mm thick)OPT
27MPA1697 LEVER1
28MPA0031 PIN1
29MPA0288 65 mm GRIP (2 12 in.)OPT
MPA0289 70 mm GRIP (2 34 in.)OPT
MPA0290 75 mm GRIP (3 in.) 1
30MPA0015 SLEEVE1
31MPA0768 SCREW4
32MPA0076 WASHER4
33MPA0743 HOUSING1
34 MPC0162 SEAL1
35MPA0008 VALVE STEM ASSEMBLY1
36MPA0043 ORING 1
37MPB0014 SPEED CONTROL1
38MPA0039 RETAINING RING 1
39 MPC0018 MINI PAD SUPPORT ASSEMBLY2
40MPA0766 SCREW4
41MPB0101 PAD BACKING1
42MPA0767 SCREW4
43MPA0078 SCREW1
44NA SEE LITERATURE FOR PADS (type/size determined by model)1
45MPA0864 2.5 mm HEX WRENCH (supplied with each tool)1
46MPA0032 MUFFLER2
47MPA0038 PLATE1
48MPA0166 MUFFLER HOUSING1
49MPA0009 SEAT1
50MPA0007 VALVE1
51MPA0014 VALVE SPRING1
52MPA0013 INLET BUSHING1
53MPB0069 SNAP-IN VACUUM COVER PLATE1
54 MPC0017 SNAP IN EXHAUST ADAPTER1
55MPA0722 DB RETAINER1
56MPA0044 ORING 2
57MPA0410 28 mm (1 in.) HOSE SuperVACTM DB SWIVEL EXHAUST ASSEMBLY1
58MPA0409 19 mm ( 34 in.) HOSE SuperVACTM DB SWIVEL EXHAUST ASSEMBLYOPT
59MPA0778 28 mm (1 in) HOSE SEAL1
60MPA0854 19 mm ( 34 in.) HOSE SEALOPT
61MPA0856 MIRKA 34 in (19 mm) HOSE SEAL TAG WITH INSTRUCTIONOPT
MPA0931 MIRKA 1 in (28 mm) HOSE SEAL TAG WITH INSTRUCTION1
62MPA0412 ∅ 28 mm (1 in.) VAC HOSE TO ∅ 28 mm (1 in.) DOUBLE BAG FITTING AND AIRLINE ASSY.1
MPA0411 ∅ 19 mm ( 34 in.) VAC HOSE TO ∅ 19 mm ( 34 in.) DOUBLE BAG FITTING AND AIRLINE ASSEMBLYOPT
63MPA0300 ∅ 19 mm ( 34 in.) HOSE TO ∅ 34 in. x ∅ 28 mm (1 in.) HOSE ADAPTER COUPLING AND AIRLINE ASSY.OPT
64MPA0298 SuperVACTM CV 19 mm ( 34 in.) CV SWIVEL EXHAUST ASSEMBLYOPT
65MPA0092 SuperVACTM CV 28 mm (1 in.) CV SWIVEL EXHAUST ASSEMBLY1
66MPA0048 NUT1
67MPA0047 WASHER1
68MPA0769 SCREW1
69MPA0658 VACUUM BAG1
70MPA0465 10 PACK OF VACUUM BAG INSERTS1
71MPA2541 FRONT BEARING DUST SHIELD1
72MPA2543 SPINDLE BEARING DUST SHIELD1

Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 2

text_image H 1 2 3 5 6 8 9 J 10 11 12 73 13 14 16 B 20 74 22 24 26 E 27 28 30 31 32 33 34 35 36 37 H 38 39 F 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 60 59 C D L 61 62 63 TO INLET TO VACUUM SYSTEM FOR CENTRAL VAC TO INLET TO VACUUM SYSTEM FOR CENTRAL VAC G ITEM TORQUE SETTING Nm (in-lbs.) 12 6.2 - 7.3 (55 - 65) 36 2.2 - 2.8 (20 - 25) 39 2.2 - 2.8 (20 - 25) 44 2.8 - 3.4 (25 - 30) 46 2.8 - 3.4 (25 - 30) 47 10.7 - 11.8 (95 - 110) 52 1.8 - 2.3 (16 - 20) 56 6.8 - 8.1 (60 - 72) 58 4.0 - 5.4 (36 - 48) 70 3.4 - 3.9 (30 - 35)
ITEMTORQUE SETTING Nm (in.-lbs.)
126.2 - 7.3 (55 - 65)
362.2 - 2.8 (20 - 25)
392.2 - 2.8 (20 - 25)
442.8 - 3.4 (25 - 30)
462.8 - 3.4 (25 - 30)
4710.7 - 11.8 (95 - 110)
521.8 - 2.3 (16 - 20)
566.8 - 8.1 (60 - 72)
584.0 - 5.4 (36 - 48)
703.4 - 3.9 (30 - 35)

Parts List - Mirka© OS 81x133mm

ItemP/NDescription Qty.
1MPA0040 RETAINING RING 1
2MPA0021 BEARING1
3MPB0017 REAR ENDPLATE 1
4 MPA0042 O-RING 1
5 MPA0005 CYLINDER ASSEMBLY 1
6MPB0005 ROTOR 1
7 MPA0010 VANE 5
8 MPA0041 KEY1
9 MPB0016 FRONT ENDPLATE 1
10 MPA0019 BEARING1
11MPA0045 O-RING 1
12MPA0001 LOCK RING1
13MPB01793 mm (1/8 in.) ORBIT AirSHIELDTM SHAFT BALANCER1
14 MPA0122 FILTER1
15MPA0121VALVE1
16MPA0120 RETAINER1
17 MPA0090 RETAINING RING 1
18 MPA0035 BEARING1
19 MPA0193 SHIM1
20 MPA0020 BEARING1
21MPA0016 SHIM1
22MPA0017 WASHER1
23MPA0018 RETAINING RING 1
24 MPA0113 SPINDLE ASSEMBLY1
25 MPA0079 SPACER (0.2 mm thick)OPT
26MPA0080 SPACER (0.4 mm thick)1
27 MPA1697 LEVER1
28 MPA0031 PIN1
29MPA0288 65 mm GRIP (21⁄2 in.)OPT
MPA0289 70 mm GRIP (23⁄4 in.)OPT
MPA0290 75 mm GRIP (3 in.) 1
30 MPA0015 SLEEVE1
31MPA0227 HOUSING1
32MPA0008 VALVE STEM ASSEMBLY1
33MPA0043 O-RING 1
34 MPB0014 SPEED CONTROL1
35 MPA0039 RETAINING RING 1
36MPA0768 SCREW4
37 MPA0076 WASHER4
38 MPA0071 THREADED INSERT2
39 MPA0770 SCREW2
40MPD0004SHROUD (Right Hand and NV Left Hand)2
41 MPA0444 SHROUD SEAL1
42MPD0005 CV/DB SHROUD1
43MPC0089 PAD SUPPORT ASSEMBLY2
44 MPA0766 SCREW4
45MPC0115 PAD BACKING1
46 MPA0767 SCREW4
47 MPA0078 SCREW1
48NASEE LITERATURE FOR PADS (type/size determined by model)1
49 MPA0864 2.5 mm HEX WRENCH (supplied with each tool)1
50 MPA0032 MUFFLER2
51 MPA0038 PLATE1
52 MPA0166 MUFFLER HOUSING1
53 MPA0009 SEAT1
54MPA0007VALVE1
55 MPA0014 VALVE SPRING1
56 MPA0013 INLET BUSHING1
57 MPA0044 O-RING 2
58 MPA0722 DB RETAINER1
59MPA0410∅ 28 mm (1 in.) HOSE SuperVACTM DB SWIVEL EXHAUST ASSEMBLY1
60 MPA0409 ∅ 19 mm (3⁄4 in.) HOSE SuperVACTM DB SWIVEL EXHAUST ASSEMBLYOPT
61MPA0778 28 mm (1 in) HOSE SEAL1
62MPA0856 Mirka 19 mm (3⁄4 in.) HOSE SEAL TAG WITH INSTRUCTIONOPT
MPA0931 Mirka 28 mm (1 in.) HOSE SEAL TAG WITH INSTRUCTION1
63MPA0854 19 mm (3⁄4 in) HOSE SEALOPT
64MPA0412∅ 28 mm (1 in.) VAC HOSE TO ∅ 28 mm (1 in.) DOUBLE BAG FITTING AND AIRLINE ASSY.1
MPA0411∅ 19 mm (3⁄4 in.) VAC HOSE TO ∅ 19 mm (3⁄4 in.) DOUBLE BAG FITTING AND AIRLINE ASSEMBLYOPT
65MPA0300∅ 19 mm (3⁄4 in.) HOSE TO ∅ 19 mm (3⁄4 in.) x ∅ 28 mm (1 in.) HOSE ADAPTER COUPLING AND AIRLINE ASSY.OPT
66MPA0092SuperVACTM CV ∅ 28 mm (1 in.) CV SWIVEL EXHAUST ASSEMBLY1
67 MPA0298 SuperVACTM CV ∅ 19 mm (3⁄4 in.) CV SWIVEL EXHAUST ASSEMBLYOPT
68 MPA0048 NUT1
69 MPA0047 WASHER1
70 MPA0769 SCREW1
71 MPA0658 VACJUM BAG1
72 MPA0465 10 PACK OF VACUUM BAG INSERTS1
73 MPA2541FRONT BEARING DUST SHIELD1
74 MPA2542SPINDLE BEARING DUST SHIELD1

Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 3

Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 4

Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 5

natural_image Exploded view diagram of a mechanical component showing internal parts (no text or symbols)

A MPA0805
10,000 opm Muffler Kit
Code: 8993017211

Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 6

natural_image Pure mechanical diagram showing a series of concentric circular components without any text, numbers, or symbols.

B MPA0806
OS Spindle Bearing Kit
Code: 8993019411

Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 7

natural_image Technical line drawing of a mechanical component with no visible text or symbols

C MPA0798
Air Inlet Kit
Code: 8993018811

Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 8

natural_image Pure mechanical assembly diagram showing shafts and housing (no text or symbols)

D MPA0932
DB Swivel Fitting Kit
Code: 8993011311

Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 9

natural_image Technical line drawing of a mechanical component with no visible text or symbols

E MPA0994
Cylinder & O-ring Kit
Code: 8993009211

Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 10

natural_image Two concentric circular diagrams with internal lines, no text or symbols present

F MPA0993
Lock Ring & O-ring Kit
Code: 8993007911

Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 11
G MPA3207
CV Swivel Fitting Kit
Code: 8991600311

Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 12
H MPA0799
Endplate Bearing Kit
Code: 8993019811

Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 13

text_image Technical diagram showing a multi-step assembly of a cylindrical component with internal components and a separate final view.

| MPA0800
Speed Valve Kit
Code: 8993019011

Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 14

natural_image Technical line drawing of a mechanical component with no visible text or symbols

J MPA0801
Code: 8993017711

Rotor, Vanes & Key Kit
Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 15

natural_image Abstract arrangement of black circular and rectangular shapes on white background (no text or symbols)

KMPA1672
Screw Kit
Code: 8993015511

Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 16
L MPA2697
DB Retainer Kit
Code: 8991600911

إ Courار المطابقةMirka Ltd.66850 Jeppo, Finland(.ni 5 x .ni 3) mm 331 x mm 18 & (.ni 4 x .ni 3) mm 001 x mm 57 ,(ni 8 x .ni 3) mm 891 x mm 07En ISO : En ISO 00001 و 12100:2010EC/2006/42 EN ISO 28927-3:2009 و EN ISO 15744:2008 EN ISO 11148-8:2011 و
Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 17MIRKA 04.06.2020 Jeppo
العربية التفاني法定ب رئيسي نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني لعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نجاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعاني نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA نعAAA nen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen aen 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Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 18

National Standards Institute, Inc.; 1430 Broadway; New York,

.New York 10018

Stefan Sjöberg, Executive Vice President

Mirka OS 353CV 81 - Mirka ^® Orbital Sander - 19

Brugervejledning

Declaration of conformity

Mirka Ltd.

FI-66850 Jeppo, Finland

declare on our sole responsibility that the products 70 mm x 198 mm (3 in. x 8 in.), 75 mm x 100 mm (3 in. x 4 in.) & 81 mm x 133 mm (3 in. x 5 in.) 10,000 OPM Orbital Sanders (See "Product Configuration/Specifications" table for particular model) to which this declaration relates are in conformity with the following standard(s) or other normative document(s): EN ISO 12100:2010, EN ISO 11148-8:2011, EN ISO 15744:2008 & EN ISO 28927-3:2009 in accordance with the regulation 2006/42/EC.

Jeppo 04.06.2020

MIRKA

Place and date of issue Company Stefan Sjöberg, CEO

Mirka OS 353CV 81 - Declaration of conformity - 1

Operator Instructions

Includes – Please Read and Comply, Proper Use of Tool, Work Stations, Putting the Tool Into Service, Operating Instructions, Product Configuration/Specifications Tables, Parts Page, Parts List, Sander Spare Parts Kits, Troubleshooting Guide.

Important

Read these instructions carefully before installing, operating, servicing or repairing this tool. Keep these instructions in a safe accessible location.

Mirka OS 353CV 81 - Important - 1

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Manufacturer/Supplier

Mirka Ltd.

66850 Jeppo, Finland

Tel: +358 20 760 2111

Mirka OS 353CV 81 - Manufacturer/Supplier - 1

Required Personal Safety Equipment

Safety Glasses Breathing Masks

Safety Gloves Ear Protection

WARNING

Always wear required personal safety protection in accordance with manufacturer's instructions and local/national standards while using this tool.

  • Do not use a power tool if you are tired or under the influence of drugs, alcohol or medication.
  • Read the Materials Safety Data Sheet (MSDS) for the working surface.
  • Use the tool with dust extraction. A suitable 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 flammable 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 firmly fixed.
  • Before changing abrasive always disconnect the air supply.

Additional safety warnings

  • 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 centre!
    • Always wear required safety equipment (see warnings).
  • The operator must be in a secure position and have a firm grip and footing on a solid floor.
    • Always ensure that the work piece to be sanded is firmly fixed.
  • Check tool, backing pad, hose and fittings regularly for wear.
    • Always take care to ensure your safety at work; 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 of 6.2 bar (90 psi).
    • Take care to avoid entanglement of 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 disconnect the air supply. Take care to properly attach and centre the abrasive on the backing pad.

Please Read and Comply with

1) General Industry Safety & Health Regulations, Part 1910, OSHA 2206, available from: Superintendent of Documents; Government Printing Office; 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.

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 that specified without consulting the manufacturer or the manufacturer's authorized supplier. Do not use backing pads that have a working speed less than 10,000 OPM free speed.

Work Stations

The tool is intended to be operated as a hand-held tool. It is always recommended that the tool be used when standing on a solid floor. It can be used in any position, but before any such use, the operator must be in a secure position and have a firm grip and footing, and be aware that the sander can develop a torque reaction. See the section "Operating Instructions".

Putting the Tool into Service

Use a clean lubricated air supply that will give a measured air pressure at the tool of 6.2 bar (90 psig) bar when the tool is running with the lever fully depressed. It is recommended to use an approved 10 mm (3/8 in.) x 8 m (25 ft) maximum length airline. It is recommended that the tool be connected to the air supply as shown in Figure 1.

Do not connect the tool to the airline system without incorporating an easy to reach and operate air shut-off valve. The air supply should be lubricated. It is strongly recommended that an air filter, regulator and lubricator (FRL) be 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 then the tool should be manually lubricated

To manually lubricate the tool, disconnect the airline and put 2 to 3 drops of suitable pneumatic motor lubricating oil such as Fuji Kosan FK-20, Mobil ALMO 525 or Shell TORCULA® 32 into the hose end (inlet) of the machine. 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 or lubricate it if the tool starts to slow or lose 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).

Operating Instructions

1) Read all instructions before using this tool. All operators must be fully trained in its use and aware of these safety rules. All servicing and repairs must be carried out by trained personnel.

2) Make sure the tool is disconnected from the air supply. Select a suitable abrasive and secure it to the backing pad. Be careful and center the abrasive on the backing pad.

3) Always wear the required safety equipment when using this tool.

4) When sanding always place the tool on the work then start the tool. Always remove the tool from the work before stopping. This will prevent gouging of the work due to excess speed of the abrasive.

5) Always disconnect the air supply from the sander before fitting, adjusting or removing the abrasive or backing pad.

6) Always adopt a firm footing and/or position and be aware of the torque reaction developed by the sander.

7) Use only correct spare parts.

8) Always ensure that the material to be sanded is firmly fixed to prevent its movement.

9) Check the hose and fittings regularly for wear. Do not carry the tool by its hose; always be careful to prevent the tool from being started when carrying the tool with the air supply connected.

10) Dust can be highly combustible. The vacuum dust collection bag should be cleaned or replaced daily. Cleaning or replacing the bag also assures optimum performance.

11) Do not exceed the maximum recommended air pressure. Use safety equipment as recommended.

12) The tool is not electrically insulated. Do not use where there is a possibility of coming into contact with live electricity, gas pipes, water pipes, etc. Check the working area before operation.

13) Take care to avoid entanglement of the moving parts of the tool with clothing, ties, hair, cleaning rags, etc. If entangled, it will cause the body to be pulled towards the work and moving parts of the machine and can be very dangerous.

14) Keep hands clear of the spinning pad during use.

15) If the tool appears to malfunction, stop using it immediately and arrange for servicing and repair.

16) Do not allow the tool to free-speed without taking precautions to protect any persons or objects from the loss of the abrasive or pad.

Mirka OS 353CV 81 - Operating Instructions - 1

flowchart
graph TD
    A["Air Dryer"] --> B["Regulator"]
    B --> C["Lubricator"]
    C --> D["Ball Valve"]
    D --> E["Filter"]
    E --> F["Regulator"]
    F --> G["Ball Valve"]
    G --> H["To Tool Station"]
    H --> I["Drain Leg"]
    I --> J["Ball Valve"]
    J --> K["To Coupler at or near Tool"]
    K --> L["Air Compressor and Tank"]
    L --> M["Air Hose"]
    M --> N["Air Air Flow"]
    N --> O["Air Compressor and Tank"]
    O --> P["Air Air Flow"]
    P --> Q["Air Dryer"]
    Q --> R["Air Compressor and Tank"]
    R --> S["Air Air Flow"]
    S --> T["Air Compressor and Tank"]
    T --> U["Air Air Flow"]
    U --> V["Air Dryer"]
    V --> W["Air Compressor and Tank"]
    W --> X["Air Air Flow"]
    X --> Y["Air Dryer"]
    Y --> Z["Air Compressor and Tank"]
    Z --> AA["Air Air Flow"]
    AA --> AB["Air Dryer"]
    AB --> AC["Air Compressor and Tank"]
    AC --> AD["Air Air Flow"]
    AD --> AE["Air Dryer"]
    AE --> AF["Air Compressor and Tank"]
    AF --> AG["Air Air Flow"]

Technical data

Mirka® OS 343CV 343DB 343NV353CV 353DB 383CV383DB
Recommended Airline Size - Minimum10 mm 3/8 in
Recommend Maximum Hose Length8 meters 25 feet
Air Pressure - Maximum Working Pressure6.2 bar 90 psig
Air Pressure - Recommended MinimumNA

Product Configuration/Specifications: 10,000 OPM Orbital Sander

Product Configuration and Specifications: 10,000 OPM 70 mm x 198 mm (3 in. x 8 in.), 75 mm x 100 mm (3 in. x 4 in.) & 81 mm x 133 mm (3 in. x 5 in.)Orbital Sanders.Note: All vacuum machines use ∅ 28 mm (1 in.) Vacuum hose fittings standard. ∅ 19 mm (3/4 in.) is available.
Orbit Vac TypePad Size mm (in.)Model NumberProduct Net Weight kg (Pounds)Height mm (in.)Length mm (in.)Power watts (HP)Air Consumption LPM (scfm)*Noise Level dBA*Vibration Level m/s2*Uncertainty K m/s2
3 mm (1/8 in.)Central Vacuum70 x 198 (3 x 8)OS383CV 096 (2.1)118 (4.65)248 (9.76)179 (0.24)453 (16) 75 3.30.83
Self-Gen Vacuum70 x 198 (3 x 8)OS383DB 097 (2.14)118 (4.65)261 (10.26)179 (0.24)453 (16) 85 2.80.77
3 mm (1/8 in.)Central Vacuum75 x 100 (3 x 4)OS343CV 072 (1.58)83.5 (3.29)202.4 (8.0)179 (0.24)453 (16) 72.52.80 0.77
Self-Gen Vacuum75 x 100 (3 x 4 )OS343DB 072 (1.58)83.5 (3.29)208.9 (8.2)179 (0.24)453 (16) 80.52.02 0.70
Non-vac75 x 100 (3 x 4 )OS343NV 070 (1.55)83.5 (3.29)139.3 (5.5)179 (0.24)453 (16) 76.02.60 1.30
3 mm (1/8 in.)Central Vacuum81 x 133 (3 x 5)OS353CV 085 (1.9)95 (3.7)217 (8.5)179 (0.24)453 (16) 76.53.23 0.81
Self-Gen. Vacuum81 x 133 (3 x 5)OS353DB 085 (1.9)95 (3.7)224 (8.8)179 (0.24)453 (16) 84.02.30 0.72
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) and EN ISO 11203:2009 Acoustics-Noise emitted by machinery and equipment-Determination of emission sound pressure levels at a work station and other specified positions from the sound power level.The vibration test is carried out in accordance with EN ISO 28927-3, Hand-held portable power tools - Test method for evaluation of vibration emission - Part 3: Polishers and rotary , orbital and random orbital sanders.

Specifications subject to change without prior notice.

*The values stated in the table are from laboratory testing in conformity with stated codes and standards, and are not sufficient 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 by an individual are unique to each situation and depend 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. 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:

https://osha.europa.eu/en

http://www.osha.gov (USA)

Troubleshooting Guide

Symptom Possible Cause Solution
Low power and/or low free speed.Insufficient air pressure. Check air line pressure at the inlet of the Sander while the tool is running at free speed. It must be 6.2 Bar (90 psig/620 kPa).
Clogged Muffler(s). Model: OS 70x198mmSee the “Housing Disassembly” section for Muffler removal. Replace Item 48, Muffler Insert (see the “Housing Assembly” section).
Clogged Muffler(s). Model: OS 75x100mmSee the “Housing Disassembly” section for Muffler removal. Replace Item 46, Muffler Insert (see the “Housing Assembly” section).
Clogged Muffler(s). Model: OS 81x133mmSee the “Housing Disassembly” section for Muffler removal. Replace Item 50, Muffler Insert (see the “Housing Assembly” section).
Plugged Inlet Screen. Clean the Inlet Screen with a clean, suitable cleaning solution. If the Screen cannot be cleaned, replace it.
One or more worn or broken Vanes. Install a complete set of new Vanes (all vanes must be replaced for proper operation). Coat all vanes with quality pneumatic tool oil. See “Motor Disassembly” and “Motor Assembly”.
Internal air leakage in the Motor Housing indicated by higher than normal air consumption and lower than normal speed.Check for proper Motor alignment and Lock Ring engagement. Check for damaged O-Ring in Lock Ring groove. Remove Motor Assembly and Reinstall the Motor Assembly. See “Motor Disassembly” and “Motor Assembly”.
Motor Parts Worn. Overhaul Motor. Contact authorized Mirka Service Center.
Worn or broken Spindle Bearings. Replace the worn or broken Bearings. See “Shaft Balancer and Spindle Disassembly” and “Spindle Bearings, AirSHIELDTM and Shaft Balancer Assembly”.
Air leakage through the Speed Control and/or Valve Stem.Dirty, broken or bent Valve Spring, Valve or Valve Seat.Disassemble, inspect and replace worn or damaged parts. See steps 2 and 3 in “Housing Disassembly” and steps 2 and 3 in “Housing Assembly”.
Vibration/rough operation. Incorrect Pad. Only use Pad sizes and weights designed for the machine.

MIRKA

(FI-66850 Jeppo, Finland)

電話:+358 20 760 2111

Mirka OS 353CV 81 - MIRKA - 1

必要な個人用保護具

保護めがね 呼吸マスク

安全手袋 防音保護具

Mirka OS 353CV 81 - 必要な個人用保護具 - 1

https://osha.europa.eu/en(유럽)

http://www.osha.gov(미국)

문제 해결 가이드

Stefan Sjöberg, Executive Vice President

Mirka OS 353CV 81 - 문제 해결 가이드 - 1

Gebruiksaanwijzing

1) General Industry Safety & Health Regulations, Part 1910, OSHA 2206, disponível em: Superintendent of Documents; Government Printing Office; Washington DC 20402
2) Safety Code for Portable Air Tools, ANSI B186.1 disponível em: American National Standards Institute, Inc.; 1430 Broadway; New York, New York 10018
3) Regulamentações e legislações locais

https://osha.europa.eu/en (Avrupa)

http://www.osha.gov (ABD)

Declaration of conformityMirka Ltd.66850 Jeppo, Finlanddeclare on our sole responsibility that the products 70 mm x 198 mm (3 in. x 8 in.), 75 mm x 100 mm (3 in. x 4 in.) & 81 mm x 133 mm (3 in. x 5 in.) 10,000 OPM Orbital Sanders (See “Product Configuration/Specifications” table for particular model) to which this declaration relates are in conformity with the following standard(s) or other normative document(s) BS EN ISO 12100:2010, BS EN ISO 11148-8:2011, BS EN ISO 15744:2008, and BS EN ISO 28927-3:2009 in accordance with the Supply of Machinery (Safety) Regulations 2008.Jeppo 14.07.2021MIRKAI Mirka OS 353CV 81 - Gebruiksaanwijzing - 1Place and date of issue CompanyStefan Sjöberg, CEO
Operator InstructionsIncludes – Parts Page, Parts List,Sander Spare Parts Kits, PleaseRead and Comply, Proper Use ofTool, Work Stations, Putting the ToolInto Service, Operating Instructions,Product Configuration/SpecificationsTables,Troubleshooting Guide.ImportantRead these instruc-tions carefully beforeinstalling, operating,servicing or repairingthis tool. Keep theseinstructions in a safeaccessible location.Importer InformationMirka (UK) LtdSaxon HouseShirwell CrescentFurzton LakeMilton KeynesMK4 1GATel. +44 (0)1908 866100Mirka OS 353CV 81 - Gebruiksaanwijzing - 2
Manufacturer/SupplierMirka Ltd.66850 Jeppo, FinlandTel: + 358 20 760 2111Required Personal Safety EquipmentMirka OS 353CV 81 - Gebruiksaanwijzing - 3Safety Glasses Breathing MasksSafety Gloves Ear Protection

This chapter is an addition to the English language chapter of the manual in order to fulfill the UKCA regulation requirements. Please refer to the English language chapter for more information about your product.

Mirka OS 353CV 81 - Gebruiksaanwijzing - 4

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Product information

Brand : Mirka

Model : OS 353CV 81

Category : Sander