OS 343CV - Grinder Mirka - Free user manual and instructions

USER MANUAL OS 343CV Mirka

Mirka ^® Orbital Sander

75 x 100 mm (3 x 4")

Exterior view of a MIRKA sanding machine (no signage or text on body)

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

Mirka ^® Orbital Sander

75 x 100 mm (3 x 4")

ar 4-7

Exploded view diagram of a mechanical component showing internal parts and assembly (no text or labels)

A MPA0805
10,000 OPM Muffler Kit Code: 8993017211

Diagram of a multi-layered mechanical or electrical component with no visible text or symbols

B MPA0807
OS Spindle Bearing Kit Code: 8993019611

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

C MPA0798
Air Inlet Kit Code: 8993018811

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

D MPA0994
Cylinder & O-ring Kit Code: 8993009211

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

EMPA0993
Lock Ring & O-ring Kit Code: 8993007911

F MPA3207
CV Swivel Fitting Kit Code: 8991600311

Diagram of three concentric cylindrical objects with a separate ring on top, showing cross-sectional views (no text or symbols)

G MAP0799
Endplate Bearing Kit Code: 8993019811

H MPA0800
Speed Valve Kit Code: 8993019011

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

| MPA0801
Rotor, Vanes & Key Kit Code: 8993017711

Pure diagram of multiple small mechanical components without any text, numbers, or symbols

J MPA1672
Screw Kit Code: 8993015511

Technical line drawing of a mechanical assembly with cylindrical components (no text or symbols)

K MPA0932
DB Swivel Fitting Kit Code: 8993011311

L MPA2697
DB Retainer Kit Code: 8991600911

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

.New York 10018

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 back-up 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 back-up pad. Be careful and center the abrasive on the back-up 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 back-up 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.

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"]

Product Configuration/Specifications: 10,000 OPM Orbital Sander

Product Configuration and Specifications: 10,000 OPM 75 mm x 100 mm (3 in. x 4 in.) Orbital Sander – 3 mm (1/8 in.) Orbit.Note: All vacuum machines use ∅ 28 mm (1 in.) Vacuum hose fittings standard. ∅ 19 mm (3/4 in.) is available.
Orbit Vac	Type Pad	Size mm (in.)	Model Number	Product Net Weight kg (Pounds)	Height mm (in.)	Length mm (in.)	Power watts (HP)	Air Consumption LPM (scfm)	*Noise Level dBA	*Vibration Level m/s ^2	*Uncertainty K m/s ^2
3 mm (1/8 in.)	Central Vacuum	75 x 100 (3 x 4)	OS343CV 0	72 (1.58) 83.5	(3.29)	202.4 (8.0)	179 (0.24)	453 (16) 72.5	2.80 0.77
	DB	75 x 100 (3 x 4 )	OS343DB 0	72 (1.58) 83.5	(3.29)	208.9 (8.2)	179 (0.24)	453 (16) 80.5	2.02 0.70
	Non-vac 7	5 x 100 (3 x 4 )	OS343NV 0	70 (1.55) 83.5	(3.29)	139.3 (5.5)	179 (0.24)	453 (16) 76.0	2.60 1.30
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. 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:

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). See the “Housing Disassembly” section for Muffler removal. Replace Item 46, 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

LIJADORAS ORBITALES MIRKA 10.000 OPM 75 mm x 100 mm (3" x 4")

https://osha.europa.eu/en(유럽)

http://www.osha.gov(비국)

문제 해결 가이드

Stefan Sjöberg, Executive Vice President

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

Canada Mirka Abrasives Canada Inc.

China Mirka Trading Shanghai Co., Ltd

Finland & Baltics KWH Mirka Ltd

France Mirka Abrasifs s.a.r.l.

Germany Mirka Schleifmittel GmbH

India Mirka India Pvt Ltd

Italy Mirka Italia s.r.l.

Mexico KWH Mirka Mexicana, S.A. de C.V.

Russia Mirka Rus LLC

Singapore Mirka Asia Pacific Pte Ltd

Spain KWH Mirka Ibérica S.A.U.

Sweden Mirka Scandinavia AB

Turkey Mirka Turkey Zimpara Ltd Şirketi

United Kingdom Mirka (UK) Ltd

USA Mirka Abrasives, Inc

For contact information,

please visit www.mirka.com

Quality from start to finish