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To Tool Station

Closed Loop Pipe System

(Sloped in the direction of air flow)

Ball

Valve

Ball

Valve

Filter

Regulator

Lubricator

Air Flow

Drain
Valve

Drain
Valve

Air Tool

Air Compressor

and Receiver

Drain Valve

Air Hose

90 PSIG MAX

(6.2 Bar)

Air Flow

Refrigerated

Air Dryer

2

Filter

Regulator

Lubricator

90 PSIG

(6.2 Bar)

OPERATING INSTRUCTIONS

Warning: 

Always wear eye protection. Operator of tool is responsible for following: accepted eye, face, respiratory, hearing and body protection.

Caution:

Hand, wrist and arm injury may result from repetitive work, motion and overexposure to vibration. Vibration level (m/s^2): 3.44.
Vibration level was established using ISO 8662-12 with a 70 gram buff attached. Accessories with greater mass will increase vibration levels.

• Keep hand and clothing away from working end of the air tool.
• Working end of the air tool has potential hazard of cutting and severing.

Operation:

Be sure that any loose clothing, hair and all jewelry is properly restrained.

• Secure inlet bushing on air tool with a wrench before attempting to install the air fitting to avoid damaging housing assembly.
• BEFORE MOUNTING AN ACCESSORY, after all tool repairs and whenever a 8" Random Orbital Polisher is issued for use, check tool RPM 

(speed) with tachometer with air pressure set at 90 PSIG while the tool is running. If tool is operating at a higher speed than the RPM marked on the tool 
housing, or operating improperly, the tool must be serviced and corrected before use.

Caution:

Tool RPM must never exceed abrasive/accessory RPM rating. Check accessory manufacturer for details on maximum operating speed or special
mounting instructions.

• With power source connected at the air tool relieve hose of air pressure and disconnect tool from air supply when changing recommended accessories.
• Connect air tool to power source. Be careful NOT to depress throttle lever in the 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 lever in case of an interruption of the energy supply.
• Ensure that self-fixing accessories are mounted concentrically.
• Make sure that work area is uncluttered, and visitors are at a safe range from the tools and debris. Potentially explosive atmospheres can be caused 

by dust and fumes resulting from sanding or grinding. Always use dust extraction or suppression systems which are suitable for the material
being processed.

• Proceed with caution in unfamiliar surroundings. Hidden hazards may exist, such as electricity or other utility lines.
• Air tools are not intended for use in explosive atmospheres and are not insulated for contact with electric power sources. 
• Use a vise or clamping device to hold work piece firmly in place.
• Work may generate hazardous dust.
• Do not apply excessive force on tool or apply “rough” treatment to it.
• Always work with a firm footing, posture and proper lighting.
• Ensure that sparks and debris resulting from work do not create a hazard.
• This tool is rear exhaust. Exhaust may contain lubricants, vane material, bearing grease, and other materials flushed thru the tool.

Report to your supervisor any condition of the tool, accessories, or operation you consider unsafe.

Air System

1

DROP/MIN.

20

SCFM

LUBRICATOR SETTING

Dynabrade Air Power Tools are designed to
operate at 90 PSIG (6.2 Bar/620 kPa) maximum
air pressure at the tool inlet, when the tool is
running. Use recommended regulator to control
air pressure.

Ideally the air supply should be free from moisture.
To facilitate removing moisture from the air supply,
the installation of a refrigerated air dryer after the
compressor and the use of drain valves at each
station is recommended.

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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