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SAFETY INSTRUCTIONS

Carefully Read all instructions before operating or servicing any Dynabrade

®

Abrasive Power Tool.

Products offered by Dynabrade are not to be modified, converted or otherwise altered from the original design without expressed written
consent from Dynabrade, Inc.

Tool Intent: 

8" Random Orbital Polishers are ideal for buffing and polishing of materials using cleaning and polishing accessories.

Do not use tool for anything other than its intended applications.

This power tool is not intended for use in potentially explosive atmospheres and is not insulated against contact with electrical power.

Training: 

Proper care, maintenance, and storage of your tool will maximize performance.

• Employer's Responsibility  – Provide 8" Random Orbital Polisher operators with safety instructions and training for safe use of tools and accessories.

Accessory Selection:

• Abrasive/accessory RPM (speed) rating MUST be approved for AT LEAST the tool RPM rating.

• Before mounting an accessory, visually inspect for defects. Do not use defective accessories.

• Use only recommended accessories. Do Not use grinding wheels or cut-off wheels. See back page of manual and Dynabrade catalog.

• Follow tool specifications before choosing size and type of accessory.

• Only use recommended fittings and air line sizes. Air supply hoses and air hose assemblies must have a minimum working pressure rating of 150 PSIG

(10 Bars, g) or 150 percent of the maximum pressure produced in the system, whichever is higher. (See tool Machine Specifications table.)

Parts Page Reorder No. PD08•30

Effective July, 2008

8" Random Orbital Polisher

Governor Controlled

Air Tool Manual – Safety, Operation and Maintenance

Models:

51570 – 2,800 RPM, 5/8"-11 Spindle
51571 – 2,800 RPM, M14 x 2 Spindle

SAVE THIS DOCUMENT, EDUCATE ALL PERSONNEL

SAFETY LEGEND

WARNING

WARNING

Read and understand tool manual before

work starts to reduce risk of injury to

operator, visitors, and tool.

WARNING

Eye protection must be worn at all times,

eye protection to conform to ANSI Z87.1.

WARNING

Respiratory protection to be used when exposed to

contaminants that exceed the applicable threshold

limit values required by law.

WARNING

Practice safety requirements. Work alert,

have proper attire, and do not operate tools under

the influence of alcohol or drugs.

WARNING

Ear protection to be worn when exposure to sound,

exceeds the limits of applicable Federal, State or

local statues, ordinances and/or regulations.

WARNING

Air line hazard, pressurized supply lines and flexible

hoses can cause serious injury. Do not use damaged,

frayed or deteriorated air hoses and fittings.

Read and understand this tool manual before operating your air tool. Follow all safety rules for the protection of operating personnel
as well as adjacent areas. Always operate, inspect and maintain this tool in accordance with the American National Safety Institute
(ANSI) Safety Code for Portable Air Tools – B186.1. For additional safety information, refer to Safety Requirements for the Use, Care
and Protection of Abrasive Wheels – ANSI B7.1, Code of Federal Regulation – CFR 29 Part 1910, European Committee for Standards
(EN) Hand Held Non-Electric Power Tools – Safety Requirements and applicable State and Local Regulations.

WARNING

Some dust created by sanding, grinding, drilling, and other construction activities contain chemicals known to cause cancer, birth  
defects or other reproductive harm. Some examples of these chemicals are:

Lead from lead-based paints

Crystalline silica from bricks and cement and other masonry products

Arsenic and chromium from chemically treated lumber

Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well
ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles.

FIND THE MOST CURRENT OFFERING OF SUPPORT DOCUMENTS AND ACCESSORIES @ WWW.DYNABRADE.COM

3/4" Dia.

Random Orbit

Rotary

Motion 

Summary of Contents for 51570

Page 1: ...operator visitors and tool WARNING Eye protection must be worn at all times eye protection to conform to ANSI Z87 1 WARNING Respiratory protection to be used when exposed to contaminants that exceed the applicable threshold limit values required by law WARNING Practice safety requirements Work alert have proper attire and do not operate tools under the influence of alcohol or drugs WARNING Ear pro...

Page 2: ... process Do not expose air tool to inlet pressure above 90 PSIG or 6 2 Bars Caution After installing the accessory before testing or use and or after assembling tool the 8 Random Orbital Polisher must be started at a reduced speed to check for good balance Gradually increase tool speed DO NOT USE if tool vibration is excessive Correct cause and retest to insure safe operation Release the throttle ...

Page 3: ...r to initial use Visually inspect air hoses and fittings for frays visible damage and signs of deterioration Replace damaged or worn components Refer to Dynabrade s Warning Safety Operating Instructions Tag Reorder No 95903 for safety information After maintenance is performed on tool add a few drops of Dynabrade Air Lube P N 95842 to the air line and start the tool a few times to lubricate air mo...

Page 4: ...ng Plate 56 02057 Bearing 57 96445 Pin 2 58 51924 Gasket 59 51933 Governor Assembly 60 All Housings Include Warning Specification Labels 20036 Housing Model 51570 20037 Housing Model 51571 61 96444 Pin 62 51949 Safety Lever Assembly 63 51946 Valve Stem Assembly Incl 96443 O Ring 64 51945 Valve Seat 65 51944 Tip Valve 66 51943 Spring 67 96442 O Ring 68 51940 Spacer 69 53682 Gasket Standard 53687 Ga...

Page 5: ...5 Secure 51925 Cylinder using 96209 Motor Repair Clamp ordered separately and place a 1 8 3 mm drift pin to the base of the terminal thread and press 51921 Rotor from the 02057 Rear Bearing 6 Slide 02057 Rear Bearing from 51923 Rear Bearing Plate 7 Remove 51925 Cylinder and 51926 Blades 9 Press rotor through 54520 Bearing 51922 Front Bearing Plate and 51927 Rotor Spacer 10 Slide 54520 Bearing and ...

Page 6: ...nded for maximum gear life Make certain there is clarence throughout 360 revolution 24 Press 50899 Shaft Seal into 50963 Retainer with base of seal facing outward 25 Apply a small amount of Loctite 567 or equiv to the male thread of the retainer and thread into place Left Hand Thread 26 Using 97782 Pin Wrench ordered separately or an adjustable pin wrench torque retainer to 35 N m 310 lb in Housin...

Page 7: ...X 31 53635 Pinion Adapter 1 X 32 51969 Coupling Nut 2 X 33 50902 Coupling Insert 1 X 34 53650 Lock Ring 1 X 35 53651 Spacer 1 X 36 96498 Wave Spring 1 T L 37 95438 O Ring 1 T X 38 53620 Adapter 1 X 39 54520 Bearing 1 T X 40 04014 Set Screw 1 L 41 01041 Grease Fitting 1 X 42 53695 Adapter 1 X 43 53669 Carrier 1 X 44 53195 Gear 2 X 45 04026 Needle Bearing 4 X 46 53679 Shaft 1 X 47 53665 Ring Gear 1 ...

Page 8: ...Formulated for pneumatic equipment Absorbs up to 10 of its weight in water Prevents rust and formation of sludge Keeps pneumatic tools operating longer with greater power and less down time 95842 1pt 473 ml 95843 1gal 3 8 L 95263 17 mm open end wrench 95281 19 mm open end wrench 96532 Motor Tune Up Kit Includes assorted parts to help maintain and repair motor 01904 Drop In Motor 2 800 RPM Allows q...

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