Nitto Kohki MYTON MYG-70 Instruction Manual

Nitto Kohki MYTON MYG-70 Instruction Manual

Pneumatic grinder

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INSTRUCTION
MANUAL
[Specifications]
Maximum operating pressure
Air consumption (No load)
Rated speed (No load)
Depressed Center Grinding Wheel outer diameter
Depressed Center Grinding Wheel hole diameter
Mass (weight)
Sound pressure level *1
Sound power level *1
Vibration level *2
Thread size of Air Inlet
Based on the ISO15744 measurement standard.
*1
*2 Based on the 3 axes combined value measurement standard of the
ISO28927-1 of the hand-held tool frequency correction vibration
acceleration effective value.
 Please read manual carefully before you attempt to use your tool so that you may use it
properly and safely.
 Keep the manual handy - so you can use it whenever necessary.
• Due to continuous product development/improvement, the specifications and configurations in this
document are subject to change without prior notice.
Manufactured by.
NITTO KOHKI CO., LTD.
Professional tool
Model: MYG-70
 The end tool in the drawing is not included with the tool.
Model
9-4, Nakaikegami 2-chome, Ohta-ku, Tokyo, 146-8555, Japan
Tel : +81-3-3755-1111 Fax : +81-3-3753-8791
Pneumatic Grinder
MYG-70
MPa
0.6
m
/min
0.70
3
min
7600
-1
mm (inch)
180 (7")
mm (inch)
22.2 (7/8")
kg
2.5
dB (A)
92
dB (A)
103
3.2 (Main unit)
m/s
2
8.2 (Handle)
Rc 3/8
(Original Instructions)
TQ15277-0 08/2017

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Summary of Contents for Nitto Kohki MYTON MYG-70

  • Page 1 • Due to continuous product development/improvement, the specifications and configurations in this document are subject to change without prior notice. Manufactured by. 9-4, Nakaikegami 2-chome, Ohta-ku, Tokyo, 146-8555, Japan NITTO KOHKI CO., LTD. Tel : +81-3-3755-1111 Fax : +81-3-3753-8791 (Original Instructions) TQ15277-0 08/2017...
  • Page 2 Instructions Thank you very much for your purchase of this NITTO KOHKI product. Before using your tool, please read this manual carefully so that you may use it properly to get the most out of it. Please keep the manual handy - so you can use it whenever necessary.
  • Page 3: Table Of Contents

    Contents Precautions on Use (Make sure to follow the 6 How to Use ............19 instructions given)..........2 Grinding work ............19 General Power Tool Safety Warnings ....2 7 Maintenance and Inspection......20 General Pneumatic Tool Safety Warnings ....5 Storing the tool ............20 Safety Warnings for PNEUMATIC GRINDER ..5 Storing the Grinding Wheel .........20 Product Specific Safety Rules......10...
  • Page 4: Precautions On Use (Make Sure To Follow The Instructions Given)

    Precautions on Use (Make sure to follow the instructions given) Before using your tool, to avoid personal injury always take the basic precautions explained in later sections. General Power Tool Safety Warnings Personal safety WARNING  Dress properly.  Protective hair Protective Do not wear loose clothing or jewelry.
  • Page 5 Work area safety WARNING  Do not use the tool at home.  This is a professional tool (industrial or work tool for business). Do not bring the tool home and use it there.  Keep the work area clean. ...
  • Page 6 Precautions on Use Handling tools WARNING  Storing the tool  When the tool is not used, store the tool in a dry location. Also, store the tool out of the reach of children. For some tools, the storage temperature and humidity are specified. Store the tool in an appropriate location. ...
  • Page 7: General Pneumatic Tool Safety Warnings

    General Pneumatic Tool Safety Warnings WARNING  Use the tool with proper air pressure.  If the air pressure is high, the rotation speed and reciprocation frequency become faster, causing damage such as damage or accelerated wear. Also, unexpected accidents could occur. ...
  • Page 8 Precautions on Use Projectile Hazards WARNING  Be aware that failure of the workpiece or accessories, or even of the inserted tool itself can generate high-  velocity projectiles.  Always wear impact-resistant eye protection while operating this tool. The grade of protection required should ...
  • Page 9 Repetitive Motion Hazards WARNING  When using this tool to perform work-related activities, the operator may experience discomfort in the hands,  arms, shoulders, neck or other parts of the body.  While using this tool, the operator should work in a comfortable posture while maintaining secure footing and ...
  • Page 10 Precautions on Use Dust and Fume Hazards WARNING  Dust and fumes generated when using this tool can cause ill health (for example cancer, birth defects, asthma  and/or dermatitis); risk assessment and implementation of appropriate controls for these hazards are essential. ...
  • Page 11 Vibration Hazards WARNING  Exposure to vibration can cause disabling damage to the nerves and blood supply of the hands and arms.   Wear warm clothing when working in cold conditions and keep your hands warm and dry.  ...
  • Page 12: Product Specific Safety Rules

    Precautions on Use Product Specific Safety Rules WARNING  Protect your body from chips.  During grinding, hot chips scatter. Since it could cause blindness, respiratory disorders, burns or hearing impairment, when working, to protect your body use protective eyewear, a dust mask, earplugs, gloves (excluding knitted gloves), long-sleeved work clothes, etc.
  • Page 13 WARNING  Always inspect the Spindle's threaded part and Outer Flange for breakage, deformation and wear.  If an abnormality is found, stop using the tool immediately.  Never use the side other than the usage surface of the Grinding Wheel. ...
  • Page 14: Application

    1 Application This tool is a pneumatic hand-held grinder for grinding a workpiece using the Grinding Wheel shown below according to the shape of the Type 27 Depressed Center Grinding Wheel. MYG-70 MYG-70 A Depressed Center Grinding 180 mm Wheel diameter (7") B Depressed Center Grinding 22.2 mm...
  • Page 15: Part Names

    3 Part Names 1 Spindle Lock Button 2 Handle Ass'y 3 Throttle Lever 4 Bushing 5 Wheel Guard 6 Driving Flange 7 Outer Flange...
  • Page 16: Air Supply

    4 Air Supply CAUTION  Remove drainage before stating work.  When drainage enters the tool, the vicinity of the exhaust port freezes, which could cause a loss of power. 1 Compressor 2 Air Filter 3 Air Regulator 4 Lubricator 5 Connecting Hose 6 Machine Oil 7 Coupler...
  • Page 17: Preparation

    5 Preparation WARNING  During work, be sure to wear eye protection, earplugs, a dust mask, and gloves (other than knitted gloves).   When replacing or adjusting the Grinding Wheel or parts, be sure to detach the Connecting Hose from the tool. ...
  • Page 18: Attaching The Handle Ass'y

    Preparation Attaching the Handle Ass'y WARNING  Before replacing the Handle Ass'y, always turn OFF the Throttle Lever and detach the Connecting Hose from  the tool. Screw into the Boss (2) at the front part of the main unit The Handle Ass'y ( ) can be attached to either the left or right side.
  • Page 19: Replacing The Grinding Wheel

    Replacing the Grinding Wheel WARNING  Before replacing the Grinding Wheel, always turn OFF the Throttle Lever and detach the Connecting Hose from  the tool. Attaching Insert the Outer Flange (5) into the Grinding Wheel (4) While holding the Spindle Lock Button (1), turn the Driving Flange (3) by hand, and push the Button at the position where rotation stops Align the notch of the Outer Flange (5)
  • Page 20: Start And Stop

    Preparation Start and stop Start Check that the Throttle Lever is in the OFF status and insert the Connection Hose into the Coupler of this tool Lock Lever Throttle Lever Hold the tool and while pressing the Lock Lever (1), press the Throttle Lever (2) The tool starts.
  • Page 21: How To Use

    6 How to Use Grinding work CAUTION  Do not press the Grinding Wheel strongly against the working surface.  Doing so could damage parts or damage the Grinding Wheel. Strongly pressing the tool against the working surface does not change work efficiency. Hold the tool with your hand to start Lightly touch the Grinding Wheel at an angle of 15 to 30 degrees against the working surface...
  • Page 22: Maintenance And Inspection

    7 Maintenance and Inspection Storing the tool Store the tool according to the following warnings and cautions. WARNING  When the tool is not in use, store out of the reach of children.  CAUTION  When the tool is not in use, store in a place with little humidity. ...
  • Page 23: Disposal

    Loosen the + Countersunk Head Screw 1st Filter (1) of the Exhaust Cover and remove the Exhaust Cover (2), Spacer (3), Exhaust 2nd Filter Filter (the 41st Filter), Exhaust Plate (5), and Packing Cover (6) 1 + Countersunk Head Screw 4×14 2 Exhaust Cover 3 Spacer 4 Exhaust Filter...
  • Page 24: Exploded View/Parts List

    8 Exploded View/Parts List MYG-70 Exploded View/Parts List CAUTION  Users should never perform disassembly of the tool.  This illustration is for reference only. For repair or replacement of the tool, request service from the retailer where you purchased the tool or the nearest NITTO service member store.
  • Page 25 Part no. Part name Quantity Outer Flange 7/8 TQ15258 Outer Flange Bolt 12×25 TP11688 Ball Bearing 629ZZ *1 *2 TP06242 End Plate A TQ12063 Spring Pin 3×6 AW TP04061 Cylinder TQ12062 Rotor TQ14928 Blade Ass'y (4 pcs.) TB08555 1 set Parallel Key Both Ends Round 3×3×10 TP10130 End Plate B...
  • Page 28 10 Ubi Crescent #01-62, Ubi Techpark Lobby D, Singapore Tel: +1-630-924-9393 Fax: +1-630-924-0303 408564 Tel: +65-6227-5360 Fax: +65-6227-0192 NITTO KOHKI EUROPE GMBH NITTO KOHKI CO., LTD., Bangkok Representative Gottlieb-Daimler-Str. 10, 71144 Steinenbronn, Germany Tel: +49-7157-989555-0 Fax: +49-7157-989555-40 Office M&A Business Center, Q-House Convent Bldg., 38 Convent NITTO KOHKI EUROPE GMBH UK BRANCH Rd., Silom, Bangrak, Bangkok 10500, Thailand...

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