Dynastraight 51130 User manual

Model:
51130 – 18,000 RPM
Parts Page Reorder No. PD02•39
Effective July, 2002
Supersedes PD97•44
.5Hp/Straight-Line/Front Exhaust
Dynastraight®Flapper
WARNING
!
Always operate, inspect and maintain this tool in accordance with the Safety Code for portable air
tools (ANSI B186.1) and any other applicable safety codes and regulations. Please refer to
Dynabrade’s Warning/Safety Operating Instructions for more complete safety information.
Air Machine and Motor Parts
151029 Flap Wheel Adapter
253175 Insulator Collar
304102 Lock Ring
404078 Felt Silencer
501125 Air Control Ring
604081 Rotor Nut
701007 Bearing
801121 Shim Pack (3/pkg.)
901008 Bearing Plate
10 50767 Pin (2)
11 01010 Rotor Spacer
12 01120 Rotor
13 01011 Blade Set (4/pkg.)
14 01013 Cylinder
15 01244 Bearing Plate
16 01015 Bearing
17 57342 Throttle Lever
01089 Safety Throttle Lever
18 01017 Pin
19 95558 Retaining Ring
20 01243 Housing
21 01477 Valve Stem
22 95730 O-Ring
23 01024 O-Ring
24 01247 Speed Regulator Assy.
25 01464 Seal
26 01472 Tip Valve
27 01468 Conical Spring
28 53190 Block Plate
29 96065 O-Ring
30 01494 Inlet Adapter
Index Key
No. Part # Description
A
O1
A8
O1
T
O
Adhesive: A8= Loctite #567
Torque: N•m x 8.85 = In. - lbs.
Oil: O1= Air Lube KEY
See inside for Important Operating, Maintenance and Safety Instructions.
4
2
5
6
7
8
912 14
15
13
10 16
19
17
18
25 26 27 28 29 30
24
21
22
23
20
10 11
34 N•m
T
34 N•m
T17 N•m T
23 N•m
3
A8T
1

2
(PD02•39)
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, sanding pads, rotor blades, etc., are not covered under this warranty.
•Important: User of tool is responsible for following accepted safety codes such as those published by the American National Standards Institute (ANSI).
•Operate machine for one minute before application to workpiece to determine if machine is working properly and safely before work begins.
•Always disconnect power supply before changing abrasive/accessory or making machine adjustments.
•Inspect abrasives/accessories for damage or defects prior to installation on tools.
•Please refer to Dynabrade’s Warning/Safety Operating Instructions Tag (Reorder No. 95903) for more complete safety information.
•Warning: Hand, wrist and arm injury may result from repetitive work, motion and overexposure to vibration.
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.
Safety Instructions:
Products offered by Dynabrade should not be converted or otherwise altered
from original design without expressed written consent from Dynabrade, Inc.
Model Motor Motor Sound Air Flow Rate Air Inlet Air Pressure Weight Length Height
Number HP (W) RPM Level CFM/SCFM (LPM) Thread PSIG (Bars) Pound (kg) Inch (mm) Inch (mm)
51130 .5 (373) 18,000 81 dB(A) 3/24 (680) 1/4" NPT 90 (6.2) 1.8 (0.8) 7 (178) 1-3/4 (44)
Additional Specifications: Hose I.D. Size 3/8" (10 mm)
Important Operating, Maintenance and Safety Instructions
Carefully read all instructions before operating or servicing any Dynabrade®Abrasive Power Tool.
Warning: Hand, wrist and arm injury may result from repetitive work motion and overexposure to vibration.
Important: All Dynabrade Rotary Vane air tools must be used with a Filter-Regulator-Lubricator to maintain all warranties.
Operating Instructions:
Warning: Eye, face, respiratory, sound and body protection must be worn while operating power tools. Failure to do so may result in serious injury or death.
Follow safety procedures posted in workplace.
1. With power source disconnected from tool, securely fasten abrasive/accessory on tool.
2. Install air fitting into inlet bushing of tool. Important: Secure inlet bushing of tool with a wrench before attempting to install the air fitting to avoid
damaging valve body housing.
3. Connect power source to tool. Be careful not to depress throttle lever in the process.
4. Check tool speed with tachometer. If tool is operating at a higher speed than the RPM marked on the tool or operating improperly, the tool should be
serviced to correct the cause before use.
5. Air tools are not intended fro use in explosive atmospheres and are not insulated for contact with electrical power sources. Sanding/Grinding certain
materials can cause explosive dust. It is the employers responsibility to notify the user of acceptable dust levels. Sanding/Grinding 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.
Maintenance Instructions:
1. Check tool speed regularly with a tachometer. If tool is operating at a higher speed than the RPM marked on the tool, the tool should be serviced to
correct the cause before use.
2. Some silencers on air tools may clog with use. Clean and replace as required.
3. All Dynabrade Rotary Vane air motors should be lubricated. Dynabrade recommends one drop of air lube per minute for each 10 SCFM (example: if
the tool specifications state 40 SCFM, set the drip rate of your filter-lubricator at 4 drops per minute).
Dynabrade Air Lube (P/N 95842: 1 pt. 473 ml.) is recommended.
4. An Air Line Filter-Regulator-Lubricator must be used with this air tool to maintain all warranties. Dynabrade recommends the following: 11405 Air Line
Filter-Regulator-Lubricator — Provides accurate air pressure regulation, two-stage filtration of water contaminants and micro-mist lubrication of
pneumatic components. Operates 40 SCFM @ 100 PSIG has 3/8" NPT female ports.
5. Use only genuine Dynabrade replacement parts. To reorder replacement parts, specify the Model #, Serial #, and RPM of your machine.
6. A Motor Tune-Up Kit (P/N 95600) is available which includes assorted parts to help maintain motor in peek operating condition.
7. Mineral spirits are recommended when cleaning the tool and parts. Do not clean tool or parts with any solvents or oils containing acids, esters
keytones, chlorinated hydrocarbons or nitro carbons.
8. DO NOT clean or maintain air tools with chemicals that have a low flash point (example: WD-40®).

Disassembly/Assembly Instructions - Dynastraight®Flapper
Important: Manufacturer’s warranty is void if tool is disassembled before warranty expires.
Please refer to parts breakdown for part identification.
Motor Disassembly:
1. Disconnect the tool from the air supply.
2. Hold the 01243 Housing in a vise with aluminum or bronze jaws. Secure it at the flats near the inlet area of the housing.
3. Use the 96347 Adjustable Pin Spanner Wrench to remove the 04102 Lock Ring by turning it counterclockwise. Remove the 04078 Felt Silencer and
the air control ring.
4. The motor assembly can now be pulled out of the motor housing.
5. Fasten the 96346 2" Bearing Separator around the portion of the 01013 Cylinder closest to the rear bearing/plate assembly. Place the separator and
the motor on the table of the 96232 Arbor Press so that the 51029 Flap Wheel Adapter is pointing toward the floor.
6. Use a 3/16" dia. flat end drive punch and press the rear shaft of the rotor out of the 01015 Bearing.
7. The 01015 Bearing can be removed from the 01244 Rear Bearing Plate with the 96211 Bearing Removal Tool and the arbor press.
8. Hold the vane portion of the 01120 Rotor in a vise with aluminum or bronze jaws and remove the 51029 Flap Wheel Adapter and then the 04081 Rotor
Nut by turning them counterclockwise.
9. The 01007 Bearing, 01008 Front Bearing Plate, 01121 Shims, and 01010 Spacer can now be removed from the 01120 Rotor.
Motor Disassembly Complete.
Valve Disassembly:
1. Hold the 01243 Housing in a vise with aluminum or bronze jaws. Secure the flats of the housing near the inlet area with the air inlet pointing up.
2. Hold the 01494 Inlet Adapter stationary with a wrench and remove the air fitting with another wrench. Important: The 01494 Inlet Adapter must be
held stationary to prevent damage to the 04102 Housing.
3. Remove the 01494 Inlet Adapter to access the 01468 Spring, 01472 Tip Valve, and 01464 Seal.
4. Use a 2.5 mm drive punch to remove the 01017 Pin and the throttle lever.
5. The 01477 Valve Stem can be pulled out of the 01247 Speed Regulator Assembly.
6. Use retaining ring pliers to remove the 95558 Retaining Ring and then push the 01247 Speed Regulator Assembly out of the 01243 Housing.
Valve Disassembly Complete.
Valve Assembly:
Important: Clean and inspect all parts before assembling.
1. Hold the 01243 Housing in a vise with aluminum or bronze jaws. Secure the flats of the housing near the inlet area with the air inlet pointing up.
2. Install the 01247 Speed Regulator Assembly (includes o-rings) into the 01243 Housing and secure it in place with the 95558 Retaining Ring.
3. Insert the 01477 Valve Stem so that the end with the hole fits into the 01247 Speed Regulator Assembly.
4. Install the 01464 Seal into the air inlet so that it is lying flat.
5. Use needle nose pliers to grasp the white portion of the 01472 Tip Valve and insert the metal pin of the tip valve into the hole in the 01477 Valve Stem.
6. Install the 01468 Spring so that the smaller end of the spring fits against the center of the tip valve.
7. Install the 96065 O-Ring onto the 53190 Block Plate and install the block plate along with the o-ring so that the flat side of the block plate is positioned
against the 01243 Housing.
8. Apply a small amount of the Loctite #567 (or equivalent) to the threads of the 01494 Inlet Adapter and install the adapter into the housing.
(Torque to 23 N•m/200 in.- lbs.)
9. Install the throttle lever and secure it with the 12132 Pin.
Valve assembly Complete.
Motor Assembly:
1. Insert the 01010 Spacer onto the rotor.
2. Select .003" thickness in shims from the 01121 Shim Pack and place these into the 01008 Bearing Plate.
3. Install the 01007 Bearing into the front bearing plate.
4. Slip the front bearing/plate assembly onto the rotor.
5. Install the 04081 Rotor Nut and check the rotor/plate clearance with a .001" (0.03 mm) feeler gauge. The clearance should be .001"-.0015" (0.03-
0.04 mm). If the rotor/plate clearance needs adjustment, repeat steps 4-5 and shim as required.
6. Install the 51029 Flap Wheel Adapter.
7. Apply the 95842 Dynabrade Air Lube (10W/NR or equivalent) to the 01011 Blades (4) and install these into the slots of the rotor.
8. Install the 01013 Cylinder over the rotor so that the air inlet opening of the cylinder will align with the air inlet opening of the 01244 Bearing Plate.
9. Use the 96241 Bearing Press Tool (position the raised outside diameter against the outside diameter of the bearing) and 96232 Arbor Press to
install the 01015 Bearing.
10. Use the 96241 Bearing Press Tool (position the raised inside diameter against the inside diameter of the bearing) and the 96232 Arbor press to install
these parts onto the rear bearing journal of the rotor. Important: Press the rear bearing/plate assembly down onto the rotor until the 01244 Bearing
Plate comes in contact with the 01013 Cylinder. This fit will establish a preload on the motor bearings producing a "snug fit" between the bearings and
the cylinder. If the fit is too tight it will cause the bearings to wear prematurely, too loose and the desired preload will not be achieved. If an adjustment
is required disassemble and repeat steps 7-8.
11. Orient the motor assembly so that the air inlet passage in the housing aligns with the air passage in the rear bearing plate and install the motor assembly.
(continued on next page)
3

Optional Accessories
Abrasives
95263 – 17 mm Open-End Wrench
Dynaswivel®
Swivels 360° at two locations which allows an air
hose to drop straight to the floor, no matter how
the tool is held.
•94300 1/4" NPT
Collet Inserts
•50065 – 1/8"
•50016 – 6 mm
•50039 – 8 mm
Collet
•50010 – 1/4"
95600 Motor Tune-Up Kit:
•Includes assorted parts to help maintain
and repair motor.
96232 #2 Arbor Press
•This arbor press is ideal for the disassembly
and assembly of air motors.
96346 Bearing Separator
•Use the separator to remove gears
and bearings.
96211 Bearing Removal Tool
•This tool is designed to pass through the
I.D. of the bearing plate and push against
the I.D. of the bearing.
96241 Bearing Press Tool
•This tool is designed to safely press a
bearing into a bearing plate and onto a shaft.
96347 Pin Spanner Wrench
•An adjustable 3 mm pin wrench that can be
used to remove motor lock rings
and accessories
Dynabrade Air Lube
•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: 1 pt. (473 ml)
95843: 1 gal. (3.8 L)
53032 - 1/4" Drill Chuck
•Includes 53052 Mated Chuck Key.
DYNABRADE
®
DYNABRADE, INC., 8989 Sheridan Drive •Clarence, NY 14031-1490 •Phone: [phone] •Fax: [phone] •International Fax: [phone]
DYNABRADE EUROPE S.àr.l., Zone Artisanale •L-5485 Wormeldange—Haut, Luxembourg •Telephone: [phone] •Fax: [phone]
© DYNABRADE, INC., 2002 PRINTED IN USA
Visit Our Web Site: www.dynabrade.com Email: [email protected]
Coated Abrasive Flap Wheels
Aluminum Oxide – 2-1/2" Diameter x 1" Wide. Includes 1/4"-20 Male Mandrel.
•90830 60 Grit
•90831 80 Grit
Disassembly/Assembly Instructions - Dynastraight®Flapper (continued)
12. Wrap the 04078 Felt Silencer around the air control ring and install these into the 04102 Lock Ring.
13. Install the 53175 Insulator Collar onto the 04102 Lock Ring.
14. Apply a small amount of the #567 Loctite (or equivalent) and install the 04102 Lock Ring onto the 01243 Housing. (Torque to 34 N•m/300 in.- lbs.)
Motor Assembly Complete. Tool Assembly Complete. Please allow 30 minutes for adhesives to cure before operating tool.
Important: Motor should now be tested for proper operation at 90 PSIG. If motor does not operate properly or operates at a higher RPM than marked on the
tool, the tool should be serviced to correct the cause before use. Before operating, place 2-3 drops of Dynabrade Air Lube (P/N 95842) directly into air inlet
with throttle lever depressed. Operate tool for 30 seconds to determine if tool is operating properly and to allow lubricating oils to properly penetrate motor
Loctite®is a registered trademark of Loctite Corp.