Dynabrade Dynabuffer 10125 User guide

24
23
21
20
32
34 35
37 38 39
40
29
26
30
Parts Page Reorder No.APD01•08
Effective June, 2001
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 Motor and Machine Parts
3" Dynabuffer
WARNING
!
Models:
10125 – 3" Dynabuffer
154459 Shroud
296416 Set Screw
395630 Snap Ring
457069 Balancer Shaft
595628 Bearing Shield
656053 Felt Seal
756052 Bearing
857422 Shaft Balancer
956047 Rotor Key
10 57088 Bearing
11 56046 Lock Ring
12 50659 O-Ring
13 57057 Front Bearing Plate
14 57113 Rotor/Blade Set
15 51354 Cylinder
16 95971 Pin
17 57056 Rear Bearing Plate
18 01206 Bearing
19 95626 Retaining Ring
20 54183 Housing
21 54192 Spring
22 95523 O-Ring (2)
23 56076 Valve Plug
24 51359 Grip
25 97165 Hang Plate
26 01017 Pin
27 95020 Set Screw
28 01020 O-Ring
29 56029 Valve Stem
30 54187 Throttle Lever
31 54188 Handle Grip
32 54689 Adapter (Non-Vac)
33 56091 Nozzle
34 54193 Gasket
35 57423 Adapter
36 01494 Inlet Bushing
37 54199 Muffler Seat
38 54195 Muffler (3)
39 54194 Muffler Cap
40 01791 Split Lock Washer (2)
41 95720 Screw (2)
Index Key
No. Part # Description
Adhesive: A2= Loctite #271
A3= Loctite #242
A6= Loctite #380
Oil: O1= Air Lube
O
A2
A2
A2
O1
G1
A2
A6
A3
O1
A
T
G
KEY
8
9
10
11
12
13
14 7
6
5
4
3
2
1
16 15
18
25
17
19
See inside for Important Operating, Maintenance and Safety Instructions.
Torque: N•m x 8.85 = In. - lbs.
Grease: G1= Lubriplate 630AA
34 N•m
T
3 N•m
T
3 N•m
T
28 N•m T
28
22
27
33
41
22
36
31
A2
AUTOMOTIVE
A3
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Buy parts on line at https://Dynashop.co.uk/ for all things Dynabrade

2
OneYear 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 equip-
ment 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.
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, sound, respiratory, and body protection must be worn while operating power tools. Failure to do so may result in serious
injury or death. Follow safetyprocedures posted in workplace.
Caution: This tool is not to be run at free speed for any length of time 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.
1. All initial set-up and maintenance to the tool should be done with the air line disconnected from the tool.
2. Install air fitting into inlet bushing of tool. The inlet bushing is a 1/4" NPT, for optimal performance of the tool, directly couple the air line to the tool or use a quick
couple fitting with a large inlet hole such as Dynabrade’s P/N 95675. Important: Secure inlet bushing of tool with a wrench before attempting to install the air fitting to
avoid damaging valve body housing.
3. While there may be other applications suited for this tool it has been specifically designed for the automotive market to be used as the second step of a special two step
operation to remove paint imperfections in the clear coat of automotive finishes. The correct back-up pad and buffing pad are required to correctly operate the tool. Attach
a back-up pad to the tool that is compatible with the paint system. The tool has a 5/16"-24 male stud which accepts a special 3M 3" Hook-It pad (3M P/N 02647), contact
a Dynabrade or 3M representative for additional information.
4. Awaffle pad such as 3M P/N 02648 is required to be attached to the back-up pad, other pads may be available contact a Dynabrade or 3M representative for additional
information. Pre-condition a virgin pad thoroughly with 3M Final Finish Finesse-It Compound 3M P/N 82876 before attaching it to the tool. Once the pad has been
conditioned this process need not be done until a new waffle pad is required either due to wear or the compound has been allowed to set up rendering the pad useless.
5. Apply a small (15 mm) dab of Final Finish on the repaired area, and position tool on the repair surface. Apply approximately a 3 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.
Maintenance Instructions:
1. Through use of tool the mufflers may clog, hamper performance and require replacement.
2. Check tool speed regularly with a tachometer. A Magnetic Tachometer such as Dynabrade P/N 96368 is the simplest way to perform this operation. There are two test
conditions to assure that the tool is running properly, these conditions being free speed and under load. The free speed is a simple check to quickly determine if the tool is
out of specification. Checking under load requires additional test equipment but assures the proper operation of the tool. All speed testing must be done with 80 psig of air
at the inlet bushing, a Pressure Gage such as Dynabrade P/N 94315 is required. The tool should run between 9,000 RPM and 11,000 RPM free speed with 80 psig at the
tool inlet bushing. If the tool is running outside these speeds it should be serviced to correct the cause before use. The under load condition can be checked by outfitting
the tool with the proper back-up pad, waffle pad and buffing cream as outlined in the operating instructions. 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 waffle are resting on the wear plate of the load cell while connected to the air line. Apply a 3 pound load to the load cell
and using the digital tachometer check he operating speed of the tool. The tool should be running 5,500 RPM minimum. If the tool is running outside this range it should
be serviced to correct the cause before use.
3. All Dynabrade Rotary Vane air motors should be lubricated. Dynabrade recommends using DynabradeAir Lube (P/N 95842: 1pt. 473ml.) at a rate of 1 drop per minute.
If DynabradeAir 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.
4. AnAir Line Filter-Regulator 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,please specify the Model #, Serial # and RPM of your machine.
6. AMotorTune-Up Kit (P/N 96437) is available which includes assorted parts to help maintain motor in peak 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 hydro
carbons or nitro carbons.
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.
•Important: User of tool is responsible for following accepted safety codes such as those published by theAmerican National Standards Institute (ANSI).
•Tool should not be running for extended periods of time free speed as it is not balanced for this condition. Avoid running the tool at free speed with a buffing pad installed
onto the back-up pad as it may dislodge from the tool.
•Always disconnect the air line before changing the back-up pad 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.
Safety Instructions:
Products offered by Dynabrade should not be converted or otherwise altered
from original design without expressed written consent from Dynabrade, Inc.
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Buy parts on line at https://Dynashop.co.uk/ for all things Dynabrade

(APD01•08)
3
57091
Bearing Press Tool
Balancer ShaftAssembly
Motor Shaft Balancer
57088 Bearing
57057
Front Bearing Plate
Drawing 4
57091
Bearing Press Tool
Balancer ShaftAssembly
Motor Shaft Balancer
57057 Front Bearing Plate
(with 57088 Bearing)
57056 Rear Bearing Plate
(with 01206 Bearing)
51354 Cylinder
Assembly.
(w/Rotor and Vanes)
Line-Up Pin
Drawing 5
Motor Assembly/Disassembly Instructions – 3" Dynabuffer
Important: Manufacturers warranty is void if tool is disassembled before warranty expires.
Acomplete Repair Kit, part number 96405, is available which includes special tools for correct disassembly/assembly of tool.
Drawing 1 57091
Bearing Press Tool
57088 Bearing
57057
Front Bearing Plate
Support
57091
Bearing Press Tool
Balancer ShaftAssembly
56052 Bearing
Shaft Step
Bearing Seal and
Bearing Shield
Drawing 2
Balancer ShaftAssembly
Motor Shaft Balancer
57088 Bearing
57091
Bearing Press Tool
Drawing 3
To Disassemble
1. Disconnect tool from power source.
2. Invert machine and secure in vice, using 57092 Collar (supplied in 96405 Repair Kit) or padded jaws.
3. Remove sanding pad with 26 mm open-end wrench (supplied with sander) and shroud or overskirt.
4. Insert 56058 Lock Ring Tool (supplied in 96405 Repair Kit) into corresponding tabs of lock ring and unscrew. Motor may now
be lifted out for service.
5. Remove 95626 Snap Ring.
6. Remove the rear plate and the cylinder assembly by securing the cylinder in a bearing separator gripped on the cylinder
exhaust and extra pocket area. Push the motor shaft balancer through the bearing.
7. Remove the rotor, vanes and rotor key from the motor shaft balancer. Remove the front plate using a small (#2) arbor press.
Support the edges of the front plate while pressing on the small end of the motor shaft balancer.
8. a.) If, during step 7, the front plate and 57088 Bearing remain together, press 57088 Bearing out of the front plate using
57091 Press Tool (supplied in 96405 Repair Kit) as shown in Drawing 1.
b.) If, during step 7, the front plate and 57088 Bearing remains on the motor shaft balancer, it can be removed with a
bearing separator.
9. Remove 01206 Bearing from the rear plate by using a bearing press tool.
10. Disassemble the balancer assembly as follows:
a.) Place motor shaft assembly into a soft jaw vise. Using a thin screwdriver, pick out the end of 95630 Snap Ring and peel
out. This will loosen the balancer assembly.
b.) Screw the female threaded portion of the 56056 Bearing Puller (supplied in 96405 Repair Kit) onto the 96416 Set Screw
of the balancer shaft and heat the outside of the motor shaft balancer to approximately 200° F (approximately 10
seconds with a propane torch). Now, using the slider weight, pull the assembly out.
c.) Press off 56052 Bearing with a bearing separator and remove bearing seal and bearing shield.
11. If during step 10, the 56052 Bearing remains in the motor shaft balancer, it can be removed by the heating the
shaft balancer again and using either an inside bearing puller or a blind hole bearing puller.
To Assemble:
Important: Be certain parts are clean and in good repair before assembling.
1. Assemble the balancer assembly as follows:
a.) Install 95630 Snap Ring onto balancer shaft. Install 95628 Shield with convex face toward hex of balancer shaft.
b.) Install 56053 Seal. Note: Be certain seal is pressed completely over shaft step.
c.) Apply 1 drop of #271 Loctite®(or equivalent) and spread over several places around the inside diameter of the 56052
Bearing and the outside diameter of the 57069 Balancer Shaft.
d.) Press fit 56052 Bearing with seal side toward hex of balancer shaft up to shaft step as shown in Drawing 2. This must
be a firm press fit for proper retention of bearing.
2. Place the motor shaft balancer in a soft jaw vise with large end-up.
3. Apply 1 drop of #271 Loctite®(or equivalent) and spread over several places around the outside diameter of the 56052 Bearing
and slide balancer assembly into the motor shaft balancer until 56052 Bearing is firmly seated at bottom. Squeeze 95630
Snap Ring into groove in motor shaft balancer to complete the assembly. Remove from vise.
4. Press 57088 Bearing onto the motor shaft balancer down to the shoulder as shown in Drawing 3.
5. Press 57057 Front Bearing Plate onto 57088 Bearing as shown in Drawing 4 and check for smooth rotation.
6. Place the 57090 Rotor and 56047 Rotor Key on the motor shaft balancer. Place the 56073 Vanes into the rotor slots.
Note: Vanes should be lightly lubricated with Dynabrade Air Lube P/N 95842 (or equivalent) before installation.
7. Place 51354 Cylinder with 95571 Pin over rotor. The “short” line-up pin goes toward the Front Plate.
8. Place 57056 Rear Bearing Plate (with 01206 Rear Bearing pressed into place) over shaft and “long” end of line-up pin and
press fit in place as shown in Drawing 5.
9. Place 95626 Snap Ring in groove.
10. Secure motor housing in vise, using 57092 Collar or padded jaws. Spread 2-3 drops of pneumatic tool oil around the housing
bore for ease of insertion of motor assembly. Slide motor assembly into secured housing. Note: Be certain line-up pin enters
the hole in the bottom of the housing.
11. Install 50659 O-Ring into 56046 Lock Ring.
12. Tighten lock ring with 56046 Lock Ring Tool to 34 N•m/300 in. - lbs. Attach shroud and buffing back-up pad.
Tool Assembly Complete. Please allow 30 minutes for adhesives to cure before operating tool.
Valve and Speed Regulator Assemblies:
1. Secure housing in vice using 57092 Collar or padded jaws.
2. Remove 56076 Valve Plug. Remove the 95523 O-Ring.
3. Remove 54192 Spring, and 56029 Valve Stem with o-ring.
4. Install new 95523 O-Ring onto 56076 Valve Plug, and new 01020 O-Ring onto 56029 Valve Stem.
5. Place valve stem into housing, alone with 54192 Spring.
6. Install 56076 Valve Plug and new 95523 O-Ring.
(continued on next page)
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Buy parts on line at https://Dynashop.co.uk/ for all things Dynabrade

Optional Accessories
Machine Specifications
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., 2001 PRINTED IN USA
Visit our Web Site: www.dynabrade.com Email: [email protected]
96437 Motor Tune-Up Kit:
• Includes assorted parts to help
maintain and repair motor.
96405 Motor Repair Kit: (not pictured)
•Contains special tools for
Disassembly/Assembly of machine.
80030 Training and Maintenance Test Equipment Kit:
•80025 Load Cell measures tool RPM under load and useful for training operators
for proper buffing pressure/operation. Electronic tachometer pick-up securely
fastens to wear plate.
•94315 Pressure Gage to ensure peak operating performance.
•95842 Air Lube formulated for pneumatic tools. Prevents rust and formation of
gum/sludge for longer tool operation with greater power and less downtime.
•96368 Tachometer used to measure tool RPM.
96392 Tune-Up Video
Filter-Regulator-Lubricator
11405: 40 SCFM @ 100 PSIG, 3/8" NPT female ports.
•Provides accurate air pressure regulation, two stage filtration of water/contaminants and
lubrication of pneumatic components.
INTRODUCTION TO THE
DYNABRADE DYNAFILE
INTRODUCTIONTOTHE
DYNABRADE DYNAFILE
DYNABRADE, INC.
8989 Sheridan Drive
Clarence, NY 14031-1490
Phone: [phone]
FAX: [phone]
DYNABRADE
®
DYNABRADE
®
Motor Assembly/Disassembly Instructions –3" Dynabuffer (continued)
7. Spread 1 drop of #271 Loctite®(or equivalent) around the threads of the inlet bushing and tighten into housing to 28 N•m/250 in. - lbs.
Note: Motor should operate at between 9,000 and 11,000 RPM free speed with 80 PSIG of air at the inlet of the tool. RPM should be checked with a tachometer. Before
operating, we recommend that 2-3 drops of DynabradeAir Lube P/N 95842 (or equivalent) be placed directly into the air inlet with throttle lever depressed. Operate the machine
for approximately 30 seconds before application to workpiece to determine if machine is working properly and safely and to allow lubricating oils to properly dispense
through machine.
Loctite®is a registered trademark of the Loctite Corp.
Disc Pad Change:
1. Insert 50679 Wrench on flats of 57069 Balancer Shaft and twist off sanding pad by hand.
2. With wrench still in place, hand tighten new pad on tool.
3. No need to remove shroud or overskirt.
Model Motor Motor Sound Pad Dimensions Orbit Diameter Maximum Air Flow Spindle Weight Length Height
Number HP (W) RPM Level Inch (mm) Inch (mm) CFM/SCFM (LPM) Thread Pound (kg) Inch (mm) Inch (mm)
57125 .16 (119) 10,000 79 dB(A) 3 (76) .6 (14) 2/16 (453) 5/16"-24 male 2.6 (1.2) 9-1/4 (235) 3-5/8 (92)
Additional Specifications: Air Inlet Thread 1/4" NPT • Hose I.D. Size 3/8" (10 mm) • Air Pressure 90 PSIG (6.2 Bars)
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Buy parts on line at https://Dynashop.co.uk/ for all things Dynabrade