Dynabrade 53521, 53523, 53522 Safety, Operation And Maintenance Instructions
PD08•26R
March, 2014
1 hp Extension Polishers
Governor Controlled
Air Tool Manual – Safety, Operation and Maintenance
Models:
53521 – 3,400 RPM, 1 Extension
53522 – 3,400 RPM, 2 Extensions
53523 – 3,400 RPM, 3 Extensions
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 Standard
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.
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: Extension Polishers are ideal for polishing materials using 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 its performance.
• Employer's Responsibility – Provide Extension 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.
• Mount only polishing accessories, follow manufacturing mounting procedures.
• 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.)
• DO NOT USE – Grinding wheels, cut-off wheels, router bits or other products outside tool intent.
(continued on next page)
SAVE THIS DOCUMENT, EDUCATE ALL PERSONNEL
8-3/8"
Individual Extension
Length (8-3/8")
Model 53522 Shown
WARNING
Some dust created by sanding, sawing, 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. 8A1000A and Higher
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.
• Keep hand and clothing away from working end of the air tool.
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.
• Check tool RPM (speed) without polishing accessory mounted using a 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.
Caution: Working end of air tool has the potential of cutting and severing.
• Use a vise or clamping device to hold work piece firmly in place.
• With power source disconnected from air tool, mount accessory onto 1/2"-20 UNF-2A Spindle thread.
• 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, the Extension 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.
• 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 sanding and or polishing certain materials. Always use dust extraction or suppression systems
which are suitable for the material being processed.
• Use a vise or clamping device to hold work piece firmly in place.
• To reduce operator fatigue use Collar 53199 to mount to suspension device.
• Do not apply excessive force on tool or apply “rough” treatment to it.
• Ensure that sparks and debris resulting from work do not create a hazard.
• Always work with a firm footing, posture and proper lighting.
• This tool has 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.
To Tool Station
Closed Loop Pipe System
(Sloped in the direction of air flow)
Ball
Valve
Ball
Valve
Filter
Coupler
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)
Air System
•
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 at each work station, if the supply
pressure is high.
•
Ideally the air supply should be free from
moisture. To facilitate removing moisture
from air supply, the installation of a
refrigerated air dryer after the compressor
and the use of drain valves at each
tool station is recommended.
➤
➤
➤
➤
➤
➤
1 DROP/MIN.
20 SCFM
LUBRICATOR SETTING
Maintenance Instructions
Important: To keep tool safe a preventative maintenance program is recommended whenever portable power tools are used.
•
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 contaminants.
•
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.
•
Grease the planetary gear assembly with the 95542 Grease by applying 2-3 plunges with the 95541 Grease Gun after every 50 hours of use
for maximum gear life.
Routine Preventative Maintenance: Check free speed of Extension Polisher using a tachometer. This governor controlled polisher should be speed
checked every 20 hours of use or weekly, whichever occurs more frequently after maintenance or repair without abrasive mounted.
•
DO NOT disassemble the governor for any reason. Reorder correct speed – governor assembly (See Assembly Breakdown) and recheck free speed of
tool with a tachometer.
•
Inspect flanges and spindle/spindle adapter threads for wear or damage.
•
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 96532) 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:
•
Use of tool rests, hangers and/or balancers 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 metals 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 Air Flow Rate Air Pressure Tool Weight Length Height
Number hp (W) RPM Level SCFM (LPM) PSIG (Bars) Thread Pound (kg) Inch (mm) Inch (mm)
53521 1 (745) 3,400 83 dB(A) 43 (1,218) 90 (6.2) 1/2"-20 5.5 (2.5) 19-3/4 (502) 1-7/8 (48)
53522 1 (745) 3,400 83 dB(A) 43 (1,218) 90 (6.2) 1/2"-20 7.6 (3.5) 28-1/8 (714) 1-7/8 (48)
53523 1 (745) 3,400 83 dB(A) 43 (1,218) 90 (6.2) 1/2"-20 9.75 (4.4) 36-1/2 (927) 1-7/8 (48)
Additional Specifications: Air Inlet Thread 3/8" NPT • Hose I.D. Size 3/8" (10 mm) • Air Flow Rate Based At Max HP. • Air Pressure 90 PSIG Max
Sound Level is the pressure measurement according to the method outlined in ISO regulation ISO-15744
Lifetime Warranty
All Dynabrade portable pneumatic power tools are rigorously inspected and performance tested in our factory before shipping to our customers. If a Dynabrade tool develops
a performance problem and an inherent defect is found during normal use and service, Dynabrade will warrant this tool against defects in workmanship and materials for
the lifetime of the tool. Upon examination and review at our factory, Dynabrade shall confirm that the tool qualifies for warranty status, and will repair or replace the tool at
no charge to the customer. Normally wearable parts and products are NOT covered under this warranty. Uncovered items include bearings, contact wheels, rotor blades,
regulators, valve stems, levers, shrouds, guards, O-rings, seals, gaskets and other wearable parts. Dynabrade’s warranty policy is contingent upon proper use of our tools
in accordance with factory recommendations, instructions and safety practices. It shall not apply to equipment that has been subjected to misuse, negligence, accident or
tampering in any way so as to affect its normal performance. To activate lifetime warranty, customer must register each tool at www.dynabrade.com. Dynabrade will not
honor lifetime warranty on unregistered tools. A one-year warranty will be honored on all unregistered portable pneumatic power tools. Lifetime warranty applies only to
portable pneumatic tools manufactured by Dynabrade, Inc. in the USA. Lifetime warranty applies only to the original tool owner; warranty is non-transferable.
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