Dynabrade 52413 Installation instructions

                      
                                                            !    "    !        #          
$ % & ' ( ) * + ( ,                   #     !              - .        + /        !     0    #     1 
2      - 3  !    4        - &     .       !                 !      !         +
Models:
52413 – 15,000 RPM
52414 – 18,000 RPM
52415 – 20,000 RPM
5 6 7 8 9 5 6 : ; < ; = 7 > ; 7 ? = @ 5 A B B C D E
F G G ; H 8 I J ; ? = J ; K L ; 7 M N B B B
O PQ; 7 9 ; > ; 9 5 A R S C D N
.7 Hp/Gearless/Rear Exhaust
3" Disc Sander
Please indicate: Model # , Serial # , and RPM when ordering replacement parts.
See reverse side for Accessories and Important Operating, Maintenance and Safety Instructions.
23 N•m
T
1 50113 Roloc®Disc Pad
2 04034 Exhaust Cover
3 01708 Rotor Nut
4 01007 Bearing
5 01121 Shim Pack (3/pkg.)
6 01008 Bearing Plate
7 50767 Pin (2)
8 01010 Rotor Spacer
9 01028 Cylinder
10 55025 Rotor
11 01185 Blade Set (4/pkg.)
12 01743 Rear Bearing Plate
13 02649 Bearing
14 53163 Handle
15 01739 Housing
16 01548 Gasket
17 01461 Lock Nut
18 01558 Collar
19 95523 O-Ring
20 01470 Insert
21 95558 Retaining Ring
22 01448 Throttle Lever
01462 Safety Lock Lever
23 12132 Pin
24 02175 Housing – 52413
02176 Housing – 52414
02177 Housing – 52415
25 01449 Valve Stem
26 95730 O-Ring
27 01024 O-Ring
28 01469 Speed Regulator Assy.
29 01464 Seal
30 01478 Tip Valve
31 01468 Conical Spring
32 01606 Cntrl. Ring 15,000 RPM
01564 Cntrl. Ring 20,000 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 Inlet Adapter
42 94520 Muffler Adapter
T U V W X Y W Z
No. Part # Description
A
A8
O1
O1
A8
T
O
Adhesive: A8= Loctite #567
Torque: N•m x 8.85 = In. - lbs .
Oil: O1= Air Lube
KEY
3
4
5
6
7
8 9 10 12
14
15
11 71613
18
19
20
22
21
25
26
27
28
24
23 30
29
31 32
34
33 35 36 37 38 39 40 41
42
1
34 N•m
T
17 N•m
T
45 N•m
T
2
17
A8
Left Hand Threads

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.
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.
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 : 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 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 96045 ) 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.
2
(PD00•81)
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 prac-
tices. 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.
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.
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 Maximum Air Flow Air Pressure Spindle Weight Length Height
Number HP (W) RPM Level CFM/SCFM (LPM) PSIG (Bars) Thread Pound (kg) Inch (mm) Inch (mm)
52413 .7 (522) 15,000 76 dB(A) 4/29 (821) 90 (6.2) 3/8"-24 male 2.3 (1.0) 8-1/8 (206) 5-1/2 (140)
52414 .7 (522) 18,000 80 dB(A) 4/32 (906) 90 (6.2) 3/8"-24 male 2.3 (1.0) 8-1/8 (206) 5-1/2 (140)
52415 .7 (522) 20,000 77 dB(A) 5/35 (991) 90 (6.2) 3/8"-24 male 2.3 (1.0) 8-1/8 (206) 5-1/2 (140)
Additional Specifications: Air Inlet Thread 1/4" NPT • Hose I.D. Size 3/8" (10 mm)

Disassembly/Assembly Instructions-.7 Hp 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.
1. Disconnect tool from power source.
2. Secure air tool in vise using 52296 Repair Collar. Remove disc pad.
3. With an open-end or adjustable wrench remove 04034 Exhaust Cover by turning counter-clockwise.
4. Pull motor assembly from housing.
5. Attach a 2 in. bearing separator around the rear portion of the 01028 Cylinder nearest the rear bearing plate.
6. Place the separator on the table of a #2 arbor press with the rotor spindle pointing down.
7. Press the rear rotor shaft out of the rear motor bearing by using a 3/16 in. flat nose drive punch.
8. Remove 01028 Cylinder, and 01185 Blades (4) from rotor.
9. Hold the body of the 55025 Rotor in a soft (bronze or aluminum) jaw vise, and remove the 01708 Rotor Nut by turning it counter-clockwise.
10. Remove 01007 Bearing, 01008 Front Bearing Plate and 01010 Spacer by sliding them from the rotor spindle.
11. Remove 02649 Rear Bearing from the 01743 Rear Bearing Plate by using Bearing Removal Tool 96213 .
Optional: To disassemble the valve body from the motor housing, peel back 01558 Collar to expose 01461 Lock Nut. Unscrew lock nut/valve body from
housing (left hand threads).
Motor Disassembly Complete.
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 sintered muffler and felt muffler.
5. Remove air control ring from valve body. Using needle nose pliers, remove 01468 Spring, 01472 Tip Valve and 01464 Seal.
6. Using a 2.5 mm drift pin, tap 12132 Pin from housing and remove throttle lever.
7. Remove 95558 Retaining Ring. Push 01469 Regulator from valve body and remove O-Rings.
Disassembly Complete.
Important: Be sure parts are clean and in good repair before assembling.
1. Hold the body of the 55025 Rotor in a soft (bronze or aluminum) jaw vise, and slide 01010 Spacer onto rotor spindle.
2. Place a .002" shim into front bearing plate as an initial spacing and slip 01007 Bearing into plate.
Note: 01121 Shim Pack contains .001" and .002" shims.
3. Slide bearing/bearing plate assembly onto rotor.
4. Install 01708 Rotor Nut and tighten onto rotor (torque to 17 N•m/150 in. - lbs.).
5. 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.
6. Once proper rotor/gap clearance is achieved, install well lubricated 01185 Blades (4) into rotor slots. Dynabrade air lube P/N 95842 is recommended.
7. Install cylinder over rotor. Be sure air inlet holes of cylinder face away from bearing plate.
8. Press 02649 Rear Bearing into 01743 Rear Bearing Plate. Press bearing/bearing plate assembly onto rotor.
Note: 96240 Bearing Press Tool can be used. 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. 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. A loose fit will not achieve the proper preload of motor bearings.
9. Secure motor housing in padded vise so motor cavity faces upwards.
10. Install motor assembly into housing. Be sure motor drops all the way into housing.
11. Install 04034 Lock Nut onto motor housing (torque 34 N•m/300 in. - lbs.).
12. 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.
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 upwards. Insert 01464 Seal.
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 towards tip valve).
4. Assemble sintered muffler and felt muffler together and place in 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 air control ring into valve body housing.
3

Optional Accessories
Wrenches
95262 – 14 mm open-end
95281 – 19 mm open-end
Dynaswivel®
Swivels 360° at two locations which
allows an air hose to drop straight to
the floor, no matter how the tool is held.
C
94300 1/4" NPT
Collet Inserts
C
50065 – 1/8"
C
50016 – 6 mm
C
50039 – 8 mm
96045 Motor Tune-Up Kit:
C
Includes assorted parts to help maintain and
repair motor.
52296 Repair Collar
C
Specially designed collar for use in vise to
prevent damage to valve body housing
during disassembly/assembly.
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]
] ^ _ ` a b c a ^ d e f ` g h e i j j j k c f ` l d ^ f ` m n a
Visit Our Web Site: www.dynabrade.com Email: [e-mail]
Disassembly/Assembly Instructions-.7 Hp Rear Exhaust (continued)
8. Apply Loctite #567 PST Pipe Sealant (or equivalent) to threads of 94523 Inlet Adapter 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. Install throttle lever and 12132 Pin.
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.