Dynabrade 55126 Safety, Operation And Maintenance Manual
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 .
Tool Intent: 3" Dynabuffer are specifically designed for clear coat repair. The tool is designed to remove scratches left over from sanding
imperfections in clear coat finishes.
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 3" Dynabuffer operators with safety instructions and training for safe use of tools and accessories.
Accessory Selection:
• 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 3" weight-mated Dynabrade back-up pads. Attach 3" foam buffing pads. Do Not use grinding wheels or cut-off wheels.
• 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. PD10•08
Effective March, 2010
3" Dynabuffer
Tool Manual – Safety, Operation and Maintenance
Model:
55126 – 12,000 RPM
SAVE THIS DOCUMENT, EDUCATE ALL PERSONNEL
14mm Random
Orbit Motion
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 Standards
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
For Serial No. 13F2196A and Higher
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
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. Operate tool ONLY under load.
• Keep hand and clothing away from working end of the air tool.
• Working end of the air tool has potential hazard of cutting.
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 3" Dynabuffer is issued for use, check tool RPM
(speed) with tachometer, see Routine Preventative Maintenance for procedure (pg. 3).
Caution: This tool is not to be run at free speed. The tool is specifically designed to be low in vibration under load. Running the tool at free speed may
cause the buffing pad to become dislodged from the back-up pad.
Caution: Tool RPM must never exceed 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 3" Dynabuffer 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.
• It is imperative that the correct weight mated back-up pad be used with the tool to avoid excessive vibration. The tool is designed to use a Dynabrade P/N
56142 Pad; this pad has a mass of 30 grams.
• Ensure that self-fixing foam buffing pads are mounted concentrically to back-up pad.
• Precondition new foam buffing pads with buffing compound before use.
• Apply dab of buffing compound to sand scratch on work surface.
• Apply approximately a 6 pound load on the pad before throttling the tool on. Adjust the force on the pad as required to feel the “sweet spot” (low
vibration). Buffing for approximately 5 seconds with the pad flat on the work surface should remove the sand scratches of the initial process. Release the
throttle lever and then remove the tool from the work piece.
• Release the throttle lever in case of an interruption of the energy supply.
• 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 buffing. 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.
• 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.
• This tool is front 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.
➤
➤
➤
➤
➤
➤
90 PSIG MAX
(6.2 Bar)
Maintenance Instructions
Important: To keep tool safe a preventative maintenance program is recommended whenever portable power tools are used. The program should include
inspection of air supply lines, air line pressure, proper lubrication and repair of tools. Refer to ANSI B186.1 for additional maintenance information.
•
Use only genuine Dynabrade replacement parts to insure quality. To order replacement parts, specify Model#, Serial# and RPM of your air tool.
•
It is strongly recommended that all Dynabrade rotary vane air tools be used with a Filter-Regulator-Lubricator to minimize the possibility of misuse due
to unclean air, wet air or insufficient lubrication. Dynabrade recommends the following: 10681 Air Filter-Regulator-Lubricator (FRL) – Provides accurate
air pressure regulation and two stage filtration of water contaminates.
•
If Dynabrade Air Lube is not compatible with paint system it may be substituted with a compatible air tool lubricant with water absorbing properties to
prevent internal components from rusting.
•
Dynabrade recommends one drop of air lube per minute for each 20 SCFM (example: if the tool specification states 40 SCFM, set the drip rate on the
filter-lubricator to 2 drops per minute). Dynabrade Air Lube (P/N 95842: 1 pt 473 ml) is recommended.
Routine Preventative Maintenance:
•
Check tool speed regularly with a tachometer. Tool must be tested with the flow control assembly completely in the full flow position. A Magnetic
Tachometer such as Dynabrade P/N 96368 is the simplest way to perform this operation. To properly check tool speed the tool should be tested under
load. Checking under load requires additional test equipment but assures the proper operation of the tool. All speed testing must be done with 90 psig of
air at the inlet bushing, a Pressure Gage such as Dynabrade P/N 94315 is required. The under load condition can be checked by outfitting the tool with
the proper back-up pad, foam buffing pad and buffing compound. Apparatus is also required to monitor the load applied to the work surface. Dynabrade
offers a Load Cell P/N 80025 that allows the tool to be tested on a bench. First zero out the scale by adjusting the knob on the side of the load cell to
read zero when the tool, back-up pad, and foam buffing pad are resting on the wear plate of the load cell while connected to the air line. Apply a 6
pound load to the load cell and using the digital tachometer check the operating speed of the tool. The tool should be running 7,500 RPM minimum. If
the tool is running outside this range it should be serviced to correct the cause before use.
•
Tool is equipped with a flow control assembly to allow adjustability. Adjustments are strongly recommended to be done during maintenance of the tool
and not at the workstation. Adjustment is accomplished by rotating the 55167 Cap so that the hole aligns with the 5/32" (4 mm) hex in the 55169 Flow
Control. A 5/32" or 4 mm hex wrench is inserted through the hole in the cap and into the hex in the flow control; rotating the wrench either clockwise or
counterclockwise will adjust the speed. The full speed range is accomplished by a 180° twist of the wrench; further rotation of the wrench will simply
repeat the cycle. Once the optimal speed setting is set rotate the 55167 Cap roughly 180° to reduce adjustment access.
•
Using the tool over time may clog 55158 Muffler Insert, this may hamper performance and require replacement.
•
Mineral spirits are recommended when cleaning the tool and parts. Do not clean tool or parts with any solvents or oils containing acids, esters,
ketones, chlorinated hydrocarbons or nitro carbons.
•
DO NOT clean or maintain tools with chemicals that have a low flash point (example: WD-40
®
).
•
A Motor Tune-Up Kit (P/N 96542) is available which includes high wear and medium wear motor parts.
•
Air tool labels must be kept legible at all times, if not, reorder label(s) and replace. User is responsible for maintaining specification information i.e.:
Model #, S/N, and RPM. (See Assembly Breakdown)
•
Blow air supply hose out prior 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 motor.
Check for excessive tool vibration.
Handling and Storage:
•
DO NOT rest tool on pad.
•
Use of tool hanger is recommended.
•
Protect tool inlet from debris (see Notice below).
•
DO NOT carry tool by air hose, or near the tool throttle lever.
•
Protect abrasive accessories from exposure to water, solvents,
high humidity, freezing temperature and extreme temperature changes.
•
Store accessories in protective racks or compartments to prevent damage.
Notice
All Dynabrade motors use the highest quality parts and materials available and are machined to exacting tolerances. The failure of quality pneumatic motors
can most often be traced to an unclean air supply or the lack of lubrication. Air pressure easily forces dirt or water contained in the air supply into motor
bearings causing early failure. It often scores the cylinder walls and the rotor blades resulting in limited efficiency and power. Our warranty obligation is
contingent upon proper use of our tools and cannot apply to equipment which has been subjected to misuse such as unclean air, wet air or a lack of
lubrication during the use of this tool.
Machine Specifications
3
Model Motor Motor Sound Maximum Air Flow Air Pressure Spindle Weight Length Height
Number hp (W) RPM Level SCFM (LPM) PSIG (Bars) Thread Pound (kg) Inch (mm) Inch (mm)
55126 .5 (373) 12,000 79 dB(A) 37 (1048) 90 (6.2) 5/16"-24 female 2.7 (1.2) 9-1/2 (242) 4-1/8 (105)
Additional Specifications: Air Inlet Thread 1/4" NPT • Hose I.D. Size 3/8" (10mm) • Tool Vibration Data (Per ISO 8662.8) 2.0
M
/
S
2
Sound Level is the pressure measurement according to the method outlined in ISO regulation ISO-15744
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