Dynabrade 52050, 52051, 52052, 52053 Operating Instructions Manual
Parts Page Reorder No. PD04•47
Effective November, 2004
Supersedes PD00•31R
Air Motor and Machine Parts
Models:
52050 — 3,200 RPM, 1/4" Collet
52051 — 3,200 RPM, 6mm Collet
52052 — 3,200 RPM, 1/2" Arbor
52053 — 3,200 RPM, Versatility Kit
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. See inside for Important Operating, Maintenance and Safety Instructions.
Lightweight Dyninger
1 50010 1/4" Collet Assy.
50015 6mm Collet Assy.
12980 1/2" Arbor
2 50781 Rear Exhaust Cover
3 50782 Adapter
4 54520 Bearing (2)
5 54472 Gear Shaft (2)
6 54519 Gear (2)
7 50786 Planetary Carrier
8 54468 Ring Gear
9 01041 Grease Fitting
10 53152 Gear Case
11 50784 Lock Screw
12 01547 Rubber Collar
13 02649 Bearing
14 54529 Shim (3/pkg.)
15 01478 Front Bearing Plate
16 50767 Pin (2)
17 01479 Rotor Spacer
18 54554 Rotor
19 01480 Blades (4/pkg.)
20 01476 Cylinder
21 02676 Rear Bearing Plate
22 02696 Bearing
23 02679 Shield
24 01448 Throttle Lever
01462 Safety Lock Lever
25 12132 Pin
26 95558 Retaining Ring
27 02130 Housing - 52050
02131 Housing - 52051
02132 Housing - 52052
28 01449 Valve Stem
29 95730 O-Ring
30 01024 O-Ring
31 01469 Speed Regulator Assy.
32 01464 Seal
33 01472 Tip Valve
34 01468 Spring
35 01564 Air Control Ring
36 94519 Muffler Assy.
37 95711 Retaining Ring
38 95438 O-Ring
39 94521 Muffler Base
40 94528 Felt Muffler
41 94522 Muffler Cap
42 95375 O-Ring
43 94526 Spacer
44 94523 Inlet Adapter
N/UP
474
1012
15 14 1317
16
181920162122
26
24 25
27
28
29
30
31
32 33 34
35
37 38
39
40 41
42 43 44
36
23
9
56
Index Key
No. Part # Description
A
2
G
1
G
1
A
8
A
8
G
1
A
8
O
1
O
1
17 N•m
T
23 N•m
T
28 N•m
17 N•m
T
11
A
8
28 N•m
T
2
1
3
O
A
T
Adhesive: A
2
= Loctite #271
A
8
= Loctite #567
Torque: N•m x 8.85 = In. - lbs.
G
Oil: O
1
= Air Lube
Grease: G
1
= Lubriplate 630 AA
KEY
For Serial No. 9J1264 and Higher
T
8
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. Air tools are not intended for use in explosive atmospheres and are not insulated for contact with electrical power sources. Sanding/Grinding certain
materials can create 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 or operating improperly, 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. It is strongly recommended that all Dynabrade rotary vane air tools be used with a Filter-Regulator-Lubricator to minimize the possibility of misuse due to
unclean air, wet air or insufficient lubrication. 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 @ 90 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 96173) is available which includes assorted parts to help maintain motor in peak operating condition. Please refer to
Dynabrade’s Preventative Maintenance Schedule for a guide to expectant life of component parts.
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
(PD04•47)
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, 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 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.
Machine Motor Motor Sound Air Flow Rate Spindle Weight Length Height
Number HP (W) RPM Level CFM/SCFM (LPM) Thread Pound (kg) Inch (mm) Inch (mm)
52050, 52051 .4 (298) 0-3,200 81 dB(A) 3/22 (623) 3/8"–24 male 2.2 (1.0) 9-1/4 (235) 1-5/8 (40)
52052 .4 (298) 0-3,200 81 dB(A) 3/22 (623) 3/8"–24 male 2.2 (1.0) 8-3/4 (222) 1-5/8 (40)
Additional Specifications: Air Inlet Thread 1/4" NPT • Hose Size 1/4" or 8mm • Air Pressure 90 PSIG (6.2 Bars)
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