Dynabrade 52631, 52634, 52635 User 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 without expressed written consent from Dynabrade, Inc.
Tool Intent: 4"- 5" Right Angle Sanders are ideal for material removal using abrasive discs with appropriate back-up pads.
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 air tools will maximize their performance.
• Employer's Responsibility – Provide 4"- 5" Right Angle Sander operators with safety instructions and training for safe use of tools and accessories.
Accessory Selection:
• Warning: DO NOT use cut-off wheels, saw blades, grinding wheels or flap discs. See tool intent for recommended accessory.
• Follow tool specifications chart before choosing size and type of accessory.
• Back-up Pad/Abrasive RPM (speed) rating MUST be approved for AT LEAST the tool RPM rating.
• Only use recommended fittings and air line sizes. Air supply hoses and air hose accessories must have a minimum working pressure of 150 PSIG (10 Bars, g) or 150 percent of the maximum
pressure produced in the system, whichever is higher. (See Machine Specifications table on back cover.)
(continued on next page)
Parts Page Reorder No. PD07•39
Effective December, 2007
4", 5" Right Angle Sanders
Air Tool Manual – Safety, Operation and Maintenance
Read and understand tool manual before
work starts to reduce risk of injury to
operator, visitors, and tool.
Eye protection must be worn at all times,
eye protection to conform to ANSI Z87.1.
Respiratory protection to be used when exposed to
contaminants that exceed the applicable threshold
limit values required by law.
Air line hazard, pressurized supply lines and flexible
hoses can cause serious injury. Do not use damaged,
frayed or deteriorated air hoses and fittings.
SAVE THIS DOCUMENT, EDUCATE ALL PERSONNEL
SAFETY LEGEND
Practice safety requirements. Work alert,
have proper attire, and do not operate tools under
the influence of alcohol or drugs.
Ear protection to be worn when exposure to sound,
exceeds the limits of applicable Federal, State or
local statues, ordinances and/or regulations.
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.
Some dust created by grinding, sanding, 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
Model 52634
Shown
Model Wheel Size RPM Spindle Thread
52631 4" 12,000 3/8"- 24
52634 4-1/2" 12,000 5/8"-11
52635 5" 12,000 5/8"-11
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING
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 Compressor
and Receiver
Drain Valve
Air Hose
Air Flow
Refrigerated
Air Dryer
2
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 which has a 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 A BACK-UP PAD/ABRASIVE, after all tool repairs and whenever a sander 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.
Warning: Back-up pad speed rating must be approved for at least the tool RPM rating. Check accessory manufacturer for details on maximum operating speed or special mounting instructions.
• Connect tool to air 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).
Warning: After installing the back-up pad/abrasive, make sure that no one is in the unguarded plane before starting the sander. IN A PROTECTED AREA, test run the sander 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. Test sander at its free speed (RPM) in a protected
area for at least one minute before use.
• DO NOT engage spindle lock while spindle is rotating.
• Make sure that work area is uncluttered, and visitors are at a safe range from the tools and debris.
• 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.
• 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 does not create a hazard.
• Always be aware of bystanders in work areas.
• This tool has side exhaust, rotate muffler cover by hand to desired exhaust direction. Exhaust may contain lubricants, vane material, bearing grease, and other materials flushed through the tool.
Warning: Sanding certain materials can create explosive dust. It is the employers responsibility to notify the user of acceptable dust levels.
• Sanding can cause sparks which can cause fires or explosions. It is the users responsibility to make sure the work area is free of flammable materials.
• Use side handle provided to best control tool during sanding.
Report to your supervisor any condition of the tool, accessories, or operation you consider unsafe.
Air System
1 DROP/MIN.
20 SCFM
LUBRICATOR SETTING
•
Check all connections and air hoses for good condition
and proper installation.
•
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 air supply, the
installation of a refrigerated air dryer after the
compressor and the use of drain valves at each
tool station.
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Back-Up Pad/Abrasive Mounting
• Disconnect air source from the tool.
• Clean spindle and locking flange nut mounting surfaces. Inspect for nicks,
cuts, sharp edges and thread wear.
• Install back-up pad onto spindle (ideal mounting is shown) with abrasive disc mounted
and locking flange nut secured. Spindle end should be flush with locking flange nut with
+ or - 1/16". Spacers may be needed to achieve ideal mounting.
• For model 52631 – Thread back-up pad onto spindle securely.
• Check mounting by rotating spindle, make certain abrasive disc is concentrically
mounted and back-up pad is not excessively warped.
Side View
Spindle
Tool Housing
1/4" MAX. overhang
of abrasive disc
Abrasive Disc
Lock Flange Nut
Back-Up Pad
Optional Spacer(s)
90 PSIG MAX
(6.2 Bar)
Air Tool
Maintenance Instructions
Important: To keep tools safe a Preventative Maintenance Program is required whenever portable power tools are used. The program shall include
inspection of air supply lines, air line pressure, proper lubrication and repair of tools. Refer to ANSI B186.1 and EN 792 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: 11411 Air Line Filter-Regulator-Lubricator — Provides accurate air
pressure regulation, two-stage filtration of water contaminants and micro-mist lubrication of pneumatic components. Operates up to 55 SCFM @ 100
PSIG has 1/2" NPT female ports.
•
Lubricate wick system through the angle gear oil fitting with 2-3 plunges for every 24 hours of use, to achieve maximum gear life.
Important: Use only the recommended angle gear oil for the wick system. Do not contaminate the wick with any other oil or grease product.
(Order 95848 Gear Oil and 95541 Gun) Always prime pump to insure good flow before lubricating gears.
•
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 free speed of tool using a tachometer without abrasive accessory attached with 90 PSIG at inlet while tool is running. This governor controlled tool
should be speed checked every 20 hours of use or weekly, whichever occurs more frequently. Always check tool speed after any maintenance or repair.
•
Inspect pad backing for excessive wear, nicks, cracks and cuts at the pad edges. Do not use pads that show excessive wear.
Check pad backing for concentricity.
•
Visually inspect abrasive discs for nicks, cuts, tears at the edges. Abrasive disc with a curved shape indicates improper storage. Do not use abrasives that
show these characteristics.
•
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 96100) 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 tool vibration before mounting abrasive wheel accessory.
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. When carrying tool keep hands away from throttle lever to avoid accidental startup.
•
Protect abrasives accessories from exposure to water, solvents, high humidity, freezing temperature and extreme temperature changes.
•
Store abrasive discs prior to use at 40-50% relative humidity and 60-80˚ F (15-27˚ C) to reduce curling.
•
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.
One Year Warranty
Following the reasonable assumption that any inherent defect which might prevail in a product will become apparent to the user within one year from the date
of purchase, all equipment of our manufacture is warranted against defects in workmanship and materials under normal use and service. We shall
repair or replace at our factory, any equipment or part thereof which shall, within one year after delivery to the original purchaser, indicate upon our
examination to have been defective. Our obligation is contingent upon proper use of Dynabrade tools in accordance with factory recommendations,
instructions and safety practices. It shall not apply to equipment which has been subject to misuse, negligence, accident or tampering in any way so as to
affect its normal performance. Normally wearable parts such as bearings, contact wheels, rotor blades, etc., are not covered under this warranty.
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