Dynabrade 13511, 13512, 13515, 13516, 13517 Safety, Operation And Maintenance
...
Parts Page Reorder No. PD10•22R
Effective June, 2013
Supersedes PD10•22
1 hp Dynastraight
6" Extension, Governor Controlled
Air Tool Manual – Safety, Operation and Maintenance
Models:
13511 – 1,800 RPM 13520 – 4,500 RPM
with 5/8" or 1" Combination Arbor with 5/8"-11 Threaded Arbor
13512 – 3,400 RPM 13531 – 1,800 RPM
with 1/2" Diameter Arbor with 5/8"-11 Threaded Arbor
13515 – 3,400 RPM
with 5/8"-11 Threaded Arbor
13516 – 3,400 RPM
with 5/8" or 1" Combination Arbor
13517 – 4,500 RPM
with 1/2" Diameter Arbor
13518 – 4,500 RPM
with 5/8" or 1" Combination Arbor
13519 – 6,000 RPM
with 5/8"-11 Threaded Arbor
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 dam-
aged, 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.
SAVE THIS DOCUMENT, EDUCATE ALL PERSONNEL
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 Dynastraight Finishing Tools are ideal for surface preparation, cleaning and finishing using abrasive wheels, discs and related 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 Dynastraight 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 recommended accessories. See back page of manual and Dynabrade literature.
• 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, saw blades or other products outside tool intent.
(continued on next page)
To Tool Station
Closed Loop Pipe System
(Sloped in the direction of air flow)
Ball
Valve
Ball
Valve
Filter
Coupler
Plug
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.
• 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) 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 disconnected from air tool, mount recommended accessory onto arbor assembly.
• When mounting abrasive or accessory on arbor be sure to follow recommended procedure of the manufacturer.
• 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 Dynastraight 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.
• Make sure that work area is uncluttered, and visitors are at a safe range from the tools and debris.
• 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.
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.
Incorporating a refrigerated air dryer after the
compressor and drain valves at each tool station
(as shown) further reduces moisture from
condensation in the air supply.
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Disassembly Instructions - 1hp Extension Dynastraight
Important: Manufacturer’s warranty is void if tool is disassembled before warranty expires.
Disconnect tool from power source before tool repair.
Motor Disassembly:
1. Remove abrasive accessory and hardware from arbor/threaded spindle.
2. Using 51989 Repair Collar (
order separately
) or padded vise, secure front end of housing using machined flats on the silver ring.
3. Remove 51952 Extension Handle from 53695 Gear Casing (twist counterclockwise).
4. Slide 51982 Bearing Spacer and spindle assembly through rear of 51952 Extension Handle.
5. Remove 96524 Retaining Ring from front of extension handle if necessary.
6. Secure 51955 Spindle at wrench flats, and remove arbor/threaded spindle, 51956 Felt Ring and 51969 Coupling Nut.
7. Secure 01007 Bearing and press 51955 Spindle through both 01007 Bearings.
8. Secure 54520 Bearing and press 51955 through 54520 Bearing.
9. Remove 53695 Gear Casing (twist counterclockwise).
10. Secure planetary Carrier using 53698 Wrench (
order separately
) and remove 51969 Coupling Nut (twist counterclockwise).
11. Remove 04014 Set Screw(s) and pull planetary carrier assembly(s) from planetary gear casing.
12
.
Press planetary carrier assembly through 54520 Bearing.
13. Remove 96498 Wave Spring.
14. Remove ring gear and press retainer pins and gears from planetary carrier.
15. Remove remaining tool assembly from vise.
16. Pull motor assembly from housing assembly.
17. Remove governor assembly by using a slotted screw driver. (LEFT HAND thread)
18. Secure 51925 Cylinder and place a 1/8" (3mm) drift pin to the base of the internal thread and press the 51921 Rotor from the 02057 Rear Bearing.
19. Slide 02057 Rear Bearing from 51923 Rear Bearing Plate.
20. Remove 51925 Cylinder and 51926 Blades.
21. Press rotor through 54520 Bearing, 51922 Front Bearing Plate and 51927 Rotor Spacer.
22. Slide 54520 Bearing and shims from 51922 Front Bearing Plate.
Motor and Extension Disassembly Complete.
Housing Disassembly:
1. Secure housing using 51989 Repair Collar (
see back cover for Optional Accessories
).
2. Remove inlet bushing with muffler assembly (twist counterclockwise).
3. Remove 53682 Gasket, 51943 Spring, 96442 O-Ring, 51940 Spacer, 94528 Felt Silencer, 53686 Muffler Cap, 94924 Wave Spring and
53683 Spacer from 53681 Inlet Bushing.
4. Remove 51944 Tip Valve and 51945 Valve Seat.
Housing Disassembly Complete.
Assembly Instructions - 1hp Extension Dynastraight
Motor Assembly:
Important: Be sure parts are clean and in good repair before assembling. Follow grease, oil and torque specifications.
1. Place Rotor into padded vise with male thread or spline facing upwards.
2. Slip 51927 Rotor Spacer over rotor shaft and down against rotor body face.
3. Press 96441 Coiled Pin into 51922 Front Bearing Plate. Make certain, coiled pin does not protrude beyond internal bearing surface.
4. Place a .002" shim into the base of 51922 Front Bearing Plate as an initial spacing and slide 54520 Bearing to the front plate base. Note: 51951 Shim
Pack contains .001" and .002" shims.
5. Press bearing/bearing plate assembly onto rotor. (For 1,800, 3,400, & 4,500 RPM Models) Slide bearing/bearing plate onto rotor and thread pinion
into place. Torque to 17 N•m (For 6,000 RPM Model.)
6. Check clearance between rotor and front bearing plate by using a .001" feeler gauge. Clarence should be between .001" – .0015". Adjust clarence by
repeating steps 4 and 5 with different shims if necessary.
7. Once proper rotor gap clarence is achieved, install well lubricated 51926 Blades (4) into rotor slots. Dynabrade recommends lubricating blades with
95842 Air Lube. Important: Make certain beveled edge of blade follows rotor outside diameter.
8. Install 51925 Cylinder over rotor and front plate raised boss. Align coiled pin on front to cylinder slot.
9. Press 96441 Coiled Pin into blind hole on 51923 Rear Bearing Plate. Press (2) 96445 Coiled Pins into the back side of rear bearing plate.
10. Peel backing off 51924 Gasket and align it firmly in place onto 51923 Rear Bearing Plate.
11. Place 51923 Rear Bearing Plate over rotor mandrel and insert raised boss on rear bearing plate into cylinder diameter, while inserting short coiled pin
into cylinder slot. Be sure inlet slot on rear bearing plate line up with inlet slot on cylinder. Flip cylinder end to end and repeat step 8 for correct assembly.
12. Press 02057 Bearing onto rotor and onto 51923 Rear Bearing Plate until it is seated. Important: Cylinder must fit snug between bearing plates. If too
tight, rotor will not turn freely. Rotor must be lightly tapped at press fit end until rotor spins freely while still maintaining a snug fit. A loose fit will not
achieve the proper preload on motor bearing. While pressing 02057 Bearing, make certain to contact inner race of bearing only.
13. Add one drop of #243 Loctite
®
(or equiv.) to governor assembly male thread and screw governor assembly onto place (LEFT HAND thread) with a
slotted screw head. Torque to 2 N•m (18 lb.-in.).
(continued on next page)
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