Dynabrade 52205 Installation instructions

10 01480 Blade (4/pkg.)
11 01476 Cylinder
12 02673 Rear Bearing Plate
13 02696 Bearing
14 02679 Shield
15 01546 Housing
16 01548 Gasket
17 01461 Lock Nut
18 01558 Collar
19 95523 O-Ring
20 01470 Insert
Air Motor and Machine Parts
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.
WARNING
!
See reverse side forAccessories and Important Operating, Maintenance and Safety Instructions.
A
T
O
Adhesive: A8= Loctite #567
Torque: N•m x 8.85 = In. - lbs.
Oil: O1=Air Lube
Please indicate:
Model #, Serial #, and RPM
when ordering replacement parts.
A8
A8
O1
A8
A8O1
17 N•m
T
28 N•m
T
45 N•m
T
23 N•m
T
1ColletAssembly
50080 1/4"
50079 6 mm
201560 Exhaust Cover
301580 Silencer
402649 Bearing
554529 Shim (3/pkg)
601478 Front Bearing Plate
750767 Pin (2)
801479 Spacer
901475 Rotor
Index Key
No. Part # Description
32 Air Control Ring
01642 25,000 RPM
01564 30,000 RPM
33 95711 Retaining ring
34 95438 O-Ring
35 94521 Muffler Base
36 94524 Sintered Muffler
37 94525 Felt Muffler
38 94522 Muffler Cap
39 95375 O-Ring
40 94526 Spacer
41 94523 InletAdapter
42 94520 MufflerAssembly
21 01448 Throttle Lever
01462 Safety Lever
(Optional)
22 12132 Pin
23 95558 Retaining Ring
24 01449 Valve Stem
25 95730 O-Ring
26 01024 O-Ring
27 01469 Regulator
28 01488 Housing
29 01464 Seal
30 01472 Tip Valve
31 01468 Spring
Index Key
No. Part # Description
1 2 3 4 5
8
69
10
712
713 14 15
16
17
18
19
41
40393837
42
36353433
31
2221
24
25
26 27
302928 32
20
11
KEY
Models:
52205 — 25,000 RPM, 1/4"
52207 — 30,000 RPM, 1/4"
52251 — 25,000 RPM, 6 mm
52253 — 30,000 RPM, 6 mm
.4 Hp/7°/Rear Exhaust
Die Grinder
Parts Page Reorder No. PD00•10
Effective September, 2000
Supercedes PD97•16
23
For Serial No. 7F1000 and Higher
Left Hand Threads
Right Hand Threads

2
(PD00•10)
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.
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 states 40 SCFM, set the drip rate of your filter-lubricator at 4 drops per minute).
DynabradeAir Lube (P/N 95842: 1pt. 473ml.) is recommended.
4. AnAir Line Filter-Regulator-Lubricator must be used with this air tool to maintain all warranties. Dynabrade recommends the following: 11405Air 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. AMotor Tune-Up Kit (P/N 96049) 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.
OneYearWarranty
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.
•Important: User of tool is responsible for following accepted safety codes such as those published by theAmerican 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 Air Inlet Sound Air Flow Rate Air Pressure Spindle Weight Length Height
Number HP (W) RPM Thread Level CFM/SCFM (LPM) PSIG (Bars) Thread Pound (kg) Inch (mm) Inch (mm)
52205/52251 .4 (289) 25,000 1/4" NPT 72 dB(A) 3/19 (538) 90 (6.2) M8 x 1.0 Male 1.3 (.6) 8-1/2 (216) 3-3/4 (94)
52207/52253 .4 (289) 30,000 1/4" NPT 75 dB(A) 3/22 (623) 90 (6.2) M8 x 1.0 Male 1.3 (.6) 8-1/2 (216) 3-3/4 (94)
Additional Specification: Hose I.D. Size 1/4" (8 mm)

Disassembly/Assembly Instructions - .4 Hp/7˚/Rear Exhaust
Important: Manufacturer’s warranty is void if tool is disassembled before warranty expires.
Notice: Dynabrade strongly recommends the use of their 52296 Repair Collar (sold separately) during assembly/disassembly activities. Failure to
use this collar will highly increase the risk of damage to the valve body of this tool. Please refer to parts breakdown for part identification.
To Disassemble:
1. Secure air tool in vise using 52296 Repair Collar or padded jaws.
2. Remove collet cap and insert.
3. With an adjustable pin wrench, remove 01560 Exhaust Cover by turning counter-clockwise. Remove muffler insert.
4. Pull motor assembly from housing.
5. Reposition motor housing in vise so inlet bushing is facing upward.
6. Unscrew 94523 Inlet Bushing and muffler assembly turning counter-clockwise.
7. Using needle nose pliers, remove 01468 Spring, 01472 Tip Valve and 01464 Seal.
8. Resecure housing in vise so throttle lever and 12132 Pin are accessible.
9. Using a 2.5 mm diameter drift pin and a hammer, tap 12132 Pin out from housing and remove throttle lever.
10. Remove 95558 Retaining Ring and push 01469 Speed Regulator from Housing.
Tool Disassembly Complete.
Motor Disassembly:
1. Press rotor from 02696 Rear Bearing. Press 02696 Bearing from 02673 Rear Bearing Plate.
2. Remove 01435 Collet Body from rotor shaft. Twist collet body counter clockwise from shaft.
3. Remove 02649 Front Bearing, bearing plate, cylinder, blades (4) and 01479 Spacer from rotor. Note: 02649 Bearing is a slip fit into 01478 Front
Bearing Plate.
Motor Disassembly Complete.
Motor Assembly:
Important: Be sure parts are clean and in good repair before assembling.
1. Place 01475 Rotor in padded vise with threaded spindle facing upward.
2. Slip 01479 Spacer onto rotor.
3. Place a .002" shim into 01478 Front Bearing Plate as an initial spacing (Note: 54529 Shim Pack contains .001", .002", and .003" shims) and slip
02649 Bearing into plate.
4. Install bearing/bearing plate assembly onto rotor.
5. Tighten 01435 Collet Body onto rotor (torque to 17 N•m/150 in. - lbs.).
6. Check clearance between rotor and bearing plate by using a .001" feeler gauge. Clearance should be at .001" to .0015". Adjust clearance by repeating
steps 1-5 with different shim if necessary.
7. Once proper rotor/gap clearance is achieved, install well lubricated 01480 Blades (4) into rotor slots. Dynabrade Air Lube P/N 95842 is recommended
for lubrication.
8. Install cylinder over rotor.
9. Press 02696 Rear Bearing into 02673 Rear Bearing Plate. Press bearing/bearing plate assembly onto rotor. Be sure that pin and air inlet holes
line-up with pin slot and air inlet holes in cylinder. Important: Fit must be snug between bearing plates and cylinder. Aloose fit will not achieve the
proper pre-load of motor bearings. If too tight, rotor will not turn freely. Rotor must then be lightly tapped at press fit end so it will turn freely while still
maintaining a snug fit.
10. Secure housing in vise using 52296 Repair Collar.
11. Place 02679 Shield over 02696 Rear Bearing and Install motor assembly into housing. Be sure motor fits all the way into housing.
12. Assemble 01580 Silencer into 01560 Exhaust Cover and install onto motor housing (torque 28 N•m/250 in. - lbs.).
13. Motor adjustment must now be checked. With motor housing still mounted in vise, pull end of rotor and twist (10-15 lbs. force), rotor should turn
freely without drag. If drag or rub is felt, then increase preload or remove shim. Also, push end of rotor and twist (10-15 lbs. force), rotor should
turn freely without drag. If drag or rub is felt, then deload or add shim.
MotorAssembly Complete.
Valve Body Assembly:
1. Insert 01469 Speed RegulatorAssembly with 01449 Valve Stem with o-rings installed into housing. Secure with 95558 Retaining Ring.
2. Secure valve body in vise using 52296 Repair Collar with air inlet facing upward.
3. Insert 01464 Seal into housing.
4. Line-up the hole in the 01449 Valve Stem with the hole in the housing (looking past brass bushing). Insert 01472 Tip Valve so that the metal pin passes
through the hole in the valve stem. Install 01468 Spring (small end first).
5. Apply Loctite®#567 PST Pipe Sealant (or equivalent) to threads of 94523 InletAdapter and install 94520 MufflerAssembly onto valve body
(torque 23.0 N•m/200 in. - lbs.).
6. Install throttle lever and 12132 Pin. Remove from vise.
Notice: To adjust throttle body orientation for a rear exhaust tool:
1. Use 52296 Repair Collar to secure valve body in vise with 01546 Housing facing up.
2. Peel down 01558 Collar to expose the nut portion of 01461 Lock Nut.
3. Using a 34 mm crows foot and firmly holding motor housing, turn 01461 Lock Nut counter clockwise to loosen assembly.
3

DYNABRADE®
DYNABRADE, INC., 8989 Sheridan Drive •Clarence, NY 14031-1490 •Phone: [phone] •Fax: [phone] •International Fax: [phone]
DYNABRADE EUROPE S.àr.l., ZoneArtisanale •L-5485 Wormeldange—Haut, Luxembourg •Telephone: [phone] •Fax: [phone]
©DYNABRADE, INC., 2000 PRINTED IN USA
Visit Our Web Site: www.dynabrade.com Email: [email protected]
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
96049 Motor Tune-Up Kit
• Includes assorted parts to help maintain
and repair motor.
Optional Accessories
Open-End Wrenches
96076 – 12 mm open-end
95262 – 14 mm open-end
52296 Repair Collar
•Specially designed collar for use in vise to
prevent damage to valve body housing
during disassembly/assembly.
Disassembly/Assembly Instructions (continued)
4. Adjust orientation of the throttle lever to agree with your grip and comfort level allowing for additional rotation due to torquing.
5. Using the 34 mm crows foot torque 01461 Lock Nut to 45N•m/400 in.lbs. while firmly holding motor housing in place to reduce housing rotation.
ToolAssembly 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.
Loctite®is a registered trademark of Loctite Corp.
Collet Inserts
•01485 1/4"
•01497 6 mm
•01495 1/8"
•01496 3 mm