Dynabrade 58050 Installation instructions

Left Hand Thread
Right Hand Thread
158057 Handle w/ 5/8"-11 Spindle
294434 Dynacushion 3 1/4" x 7"
(5/8"-11 Threaded Bore)
355034 Adapter (5/8"-11 Male)
450781 Rear Exhaust Cover
550782 Adapter
654520 Bearing (2)
754472 Gear Shaft (2)
850786 Planetary Carrier
954519 Gear w/ Needle Bearing (2)
10 54468 Ring Gear
11 50778 Spacer
12 02649 Bearing
13 54529 Shim Pack (3/pkg.)
14 01478 Front Bearing Plate
15 50767 Pin (2)
16 01479 Spacer
17 54554 Rotor
18 01480 Blade (4/pkg.)
19 01476 Cylinder
20 02673 Rear Bearing Plate
21 02696 Bearing
22 02679 Shield
23 50784 Screw Set
24 50776 Housing
25 01041 Grease Fitting
26 01548 Gasket
27 01461 Lock Nut
28 01558 Collar
29 95523 O-Ring
30 01470 Insert
31 12132 Pin
32 01448 Throttle Lever
33 95558 Retaining Ring
34 01449 Valve Stem
35 01488 Housing
36 95730 O-Ring
37 01024 O-Ring
38 01469 Speed Regulator Assembly
39 01464 Seal
40 01472 Tip Valve
41 01468 Spring
42 01564 Air Control Ring
43 95438 O-Ring
44 95711 Retaining Ring
45 94521 Muffler Base
46 94528 Felt Muffler
47 94522 Muffler Cap
48 95375 O-Ring
49 94526 Spacer
50 94523 Inlet Adapter
51 94519 Muffler Assembly
Parts Page Reorder No. PD03•05
Effective January, 2003
Supersedes PD01•30
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
Rolling Pin Sander
Model:
58050 – 3,200 RPM
Index Key
No. Part # Description
For Serial No. 3A2827 and Higher
1
34 6 8
7
17 19 15 20 21 22
12 13 14 15 16
910 611
2
42
41
40
38
39
34
31
32 33 36 37
30
29
28
51
43
44
46
45
47
48
49
50
26
24
Adhesive: A2= Loctite #271
A8= Loctite #567
Torque: N•m x 8.85 = In. - lbs.
Oil: O1= Air Lube
O
Grease: G1= Lubriplate 630 AA
G
A
T
A
2
O
1
A
8
G
1
A
8
A
8
A
8
O
1
A
8
KEY
23 N•m
T
45 N•m
T
28 N•m
T
17 N•m
T
18
23
35
25
27
5
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Buy parts on line at https://Dynashop.co.uk/ for all things Dynabrade

2
(PD03•05)
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 state 40 SCFM, set the drip rate of your lubricator at 4 drops per minute). Dynabrade Air Lube (P/N 95842: 1pt. 473ml.)
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 up to 40 SCFM @ 100 PSIG, has 3/8" NPT female ports.
5. Lubricate planetary gears through the gear casing grease fitting with 2-3 plunges for every 50 hours of use to achieve maximum gear life (order
95542 Grease and 95541 Gun).
6. Use only genuine Dynabrade replacement parts. To reorder replacement parts, specify the Model #, Serial # and RPM of your machine.
7. A Motor Tune-Up Kit (P/N 96174) is available which includes assorted parts to help maintain motor in peek operating condition. Please refer to
Dynabrade’s Preventative Maintenance Schedule for a guide to expectant life of component parts.
8. 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.
• 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.
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 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.
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)
58050 .4 (298) 3,200 1/4" NPT 82 dB(A) 3/24 (651) 90 (6.2) 5/8"-11 male 5 (2.3) 17-3/4 (452) 3-1/4 (83)
Additional Specifications: Hose Size 3/8" or 10 mm
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Buy parts on line at https://Dynashop.co.uk/ for all things Dynabrade

Disassembly/Assembly Instructions - .4 Hp/Straight-Line/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.
Motor Disassembly:
1. Disconnect tool from power source.
2. Secure air tool in vise using 52296 Repair Collar.
3. With an adjustable pin wrench, remove 50781 Rear Exhaust Cover by turning counter-clockwise.
4. Remove 50784 Set Screw and pull 50782 Adapter and planetary carrier assembly from 50776 Housing.
5. Press planetary carrier assembly from rear 54520 Bearing. Remove ring gear and gears from 50786 Planetary Carrier.
6. Secure planetary carrier in vise and remove 50782 Adapter. Press carrier from front 54520 Bearing.
7. Grab onto pinion and pull motor assembly from motor housing.
8. Press 54554 Rotor from 02696 Rear Bearing. Press 02696 Rear Bearing from 02673 Rear Bearing Plate, remove 02679 Shield.
9. Remove cylinder and rotor blades from rotor.
10. Press rotor through 02649 Front Bearing and 01478 Front Bearing Plate.
Motor Disassembly Complete.
Valve Body Disassembly:
1. Position valve body in vise using 52296 Repair Collar with air inlet facing up.
2. Remove air fitting by securing 94523 Inlet Adapter with a wrench and twist air fitting from inlet adapter.
Important: 94523 Inlet Adapter must be secured before attempting to remove air fitting to avoid damaging valve body housing.
3. Remove 94523 Inlet Adapter.
4. Remove 95711 Retaining Ring from inlet adapter and separate 94521 Muffler Base from 94522 Muffler Cap. Remove felt muffler.
5. Remove 01564 Air Control Ring from valve body. Using needle nose pliers, remove 01468 Spring, 01472 Tip Valve and 01464 Seal.
6. Remove 95558 Retaining Ring. Push 01469 Regulator from valve body and remove o-rings.
Disassembly Complete.
Motor Assembly:
Important: Be sure parts are clean and in good repair before assembling. Follow all grease, oil, and torque specifications.
1. To correct for bearing tolerances, it is necessary to use 54529 Shim Pack (as req.) to maintain correct clearance between ends of rotor and bearing plates.
2. Insert .002 Shim in 01478 Front Bearing Plate.
3. Insert 02649 Bearing into 01478 Bearing Plate.
4. Assemble 01479 Spacer onto pinion end of 54554 Rotor, making sure that the countersink faces the rotor.
5. Assemble 01478 Front Bearing Plate onto rotor by pressing on the inner race of 02649 Bearing and by supporting rotor on opposite end. Be sure that the
bearing is pressed tight against 01479 Spacer.
6. Hold rotor in left hand and the bearing plate in right hand. Apply an outward (pulling) pressure and observe spacing between end of rotor and bearing
plate. This should be from flush (not rubbing) to .002 maximum. If the rotor rubs the bearing plate, reduce the spacing between the bearing and the
bearing plate by removing the .002 shim entirely, or by substituting a .001 shim for the .002 shim. However, if there is more than .002 spacing between the
end of the rotor and bearing plate, add .001 shim between the bearing and the bearing plate.
7. Assemble 01476 Cylinder so that inlet part will align with inlet holes in 02673 Rear Bearing Plate. The cylinder exhaust slots must align with the slots
in the bearing plate.
8. Insert 01480 Blades (lubricate blades with Dynabrade Air Lube P/N 95842 or equivalent prior to installation).
9. Support assembly squarely on the pinion end of rotor. Press 02676 Bearing into 02673 Rear Bearing Plate and press these onto rotor, pressing on the
inner race of 02696 Bearing, just enough to bring the bearing plate against the cylinder. There should be slight drag between the bearing plates and
cylinder when these are moved with the fingers. Position cylinder until motor turns “finger free.” Be sure that pin and air inlet hole in cylinder line up with
air inlet hole and pin hole in bearing plate.
10. Place 02679 Shield over 02696 Bearing.
11. Install motor assembly into motor housing.
12. Press front 54520 Bearing onto front end of 50786 Planetary Carrier.
13. Apply one drop of #271 Loctite®to threads of 50782 Adapter. Install adapter onto planetary carrier (torque 17.0 N•m/150 in. - lbs.).
14. Install planetary gears and 54472 Gear Shafts onto planetary carrier.
15. Slip 54468 Ring Gear over gears and press rear 54520 Bearing onto planetary carrier.
16. Slip complete planetary carrier onto pinion in motor housing, so that notches in ring gear line-up with grease fitting and set screw. Install 50784 Set
Screw into housing.
17. Install 50781 Exhaust Cover onto 50776 Housing (torque 28 N•m/250 in. - lbs.).
Motor Assembly Complete.
Valve Body Assembly:
1. Insert 01469 Regulator with o-rings and valve stem in place into valve body. Secure with 95558 Retaining Ring.
2. Secure valve body in vise using 52296 Repair Collar with air inlet facing upward. Insert 01464 Seal.
(continued on next page)
3
3
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Buy parts on line at https://Dynashop.co.uk/ for all things Dynabrade

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., 2003 PRINTED IN USA
Visit Our Web Site: www.dynabrade.com Email: Customer[email protected]
Accessories
96174 Motor Tune-Up Kit
• Includes assorted parts to help
maintain and repair motor.
52296 Repair Collar
• Specially designed collar for use in vise to prevent damage
to valve body of tool during disassembly/assembly.
Open End Wrenches
• 95262: 14 mm
• 95263: 17 mm
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.
Disassembly/Assembly Instructions (continued)
3. Line up hole in valve stem with hole in 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 toward tip valve).
4. Assemble felt muffler into 94522 Muffler Cap. Install 94521 Muffler Base onto muffler cap.
5. Install 95438 O-Ring into groove on muffler base. Place 95375 O-Ring and 94526 Spacer into recessed area of muffler cap.
6. Slip 94523 Inlet Adapter through muffler assembly and install 95711 Retainer Ring into groove on inlet adapter.
7. Install 01564 Air Control Ring into valve body housing.
8. Apply Loctite
®
#567 PST Pipe Sealant to threads of 94523 InletAdapter and install entire muffler assembly onto valve body (torque 23.0 N•m/200 in. - lbs.).
9. Replace air fitting. Secure inlet adapter with a wrench before tightening air fitting.
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.
Grease
• Multi-purpose grease for all types of bearings, cams, gears.
• High film strength; excellent resistance to water, steam, etc.
• Workable range 0˚ F to 300˚ F
95541: Push-Type Grease Gun (one-handed operation).
95542: 10 oz. (283.5 g) tube.
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: 1pt. (473 m)
95843: 1gal. (3.8L)
Buy parts on line at https://Dynashop.co.uk/ for all things Dynabrade
Buy parts on line at https://Dynashop.co.uk/ for all things Dynabrade