Dynabrade 52256, 52257, 52258, 52264, 52265 Operating, Maintance And Safety Manual
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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.
See reverse side for Accessories and Important Operating, Maintenance and Safety Instructions.
Models:
52256 – 15,000 RPM, 1/4" - Collet
52257 – 18,000 RPM, 1/4" - Collet
52258 – 20,000 RPM, 1/4" - Collet
52264 – 15,000 RPM, 6mm - Collet
52265 – 18,000 RPM, 6mm - Collet
52266 – 20,000 RPM, 6mm - Collet
Parts Page Reorder No. PD10•17
Effective April, 2010
Supersedes PD02•57
.7 hp/Straight-Line/Front Exhaust
Die Grinder
1 50010 1/4" Collet Assy.
50015 6mm Collet Assy.
2 53175 Insulator Collar
3 01371 Lock Ring
4 01727 Felt Silencer
5 Air Control Ring
01724 15,000 RPM
01725 18,000 RPM
01726 20,000 RPM
6 01708 Rotor Nut
7 01007 Bearing
8 01121 Shim Pack (3/pkg.)
9 01008 Bearing Plate
10 50767 Pin (2)
11 01010 Spacer
12 01028 Cylinder
13 55025 Rotor
14 01185 Blade (4/pkg.)
15 01722 Bearing Plate
16 02649 Bearing
17 01295 Housing
18 57342 Throttle Lever
01089 Safety Lock Lever
(optional)
19 01017 Pin
20 95558 Retaining Ring
21 01477 Valve Stem
22 95730 O-Ring
23 01024 O-Ring
24 01247 Speed Regulator Assy.
25 01464 Seal
26 01472 Tip Valve
27 01468 Spring
28 53190 Block Plate
29 96065 O-Ring
30 01494 Inlet Adapter
Index Key
No. Part # Description
Adhesive: A8= Loctite #567
Torque: N•m x 8.85 = In. - lbs.
Oil: O
1
= Air Lube
O
A
T
KEY
1 2 3 4 5 6
7
8
9 10 10
292826
2719
18
20
2517 21
22
23
24
11 12 13 15 16
17 N•m
T
34 N•m
T
23 N•m
T
17 N•m
T
O
1
A
8
A
8
A
8
O
1
14
30
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 20 SCFM (example: if
the tool specifications state 40 SCFM, set the drip rate of your filter-lubricator at 2 drops per minute).
Dynabrade Air Lube (P/N 95842: 1 pt. 473 ml.) is recommended.
4. An Air Line Filter-Regulator-Lubricator must be used with this air tool to maintain all warranties. Dynabrade recommends the following: 10681 Air Line
Filter-Regulator-Lubricator — Provides accurate air pressure regulation, two-stage filtration of water contaminants and micro-mist lubrication of
pneumatic components.
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 96529) 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 hydrocarbons or nitro carbons.
2
•
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.
Model Motor Motor Sound Maximum Air Flow Air Pressure Spindle Weight Length Height
Number hp (W) RPM Level SCFM (LPM) PSIG (Bars) Thread Pound (kg) Inch (mm) Inch (mm)
52256/52264 .7 (522) 15,000 83 dB(A) 31 (878) 90 (6.2) 3/8"-24 male 1.7 (.8) 6 (152) 1-7/8 (48)
52257/52265 .7 (522) 18,000 87 dB(A) 33 (935) 90 (6.2) 3/8"-24 male 1.7 (.8) 6 (152) 1-7/8 (48)
52258/52266 .7 (522) 20,000 91 dB(A) 34 (963) 90 (6.2) 3/8"-24 male 1.7 (.8) 6 (152) 1-7/8 (48)
Additional Specifications: Air Inlet Thread 1/4" NPT • Hose I.D. 3/8" (10mm)
Sound Level is the pressure measurement according to the method outlined in ISO regulation ISO-15744
Lifetime Warranty
All Dynabrade portable pneumatic power tools are rigorously inspected and performance tested in our factory before shipping to our customers. If a Dynabrade tool develops
a performance problem and an inherent defect is found during normal use and service, Dynabrade will warrant this tool against defects in workmanship and materials for the
lifetime of the tool. Upon examination and review at our factory, Dynabrade shall confirm that the tool qualifies for warranty status, and will repair or replace the tool at no
charge to the customer. Normally wearable parts and products are NOT covered under this warranty. Uncovered items include bearings, contact wheels, rotor blades,
regulators, valve stems, levers, shrouds, guards, O-rings, seals, gaskets and other wearable parts. Dynabrade’s warranty policy is contingent upon proper use of our tools
in accordance with factory recommendations, instructions and safety practices. It shall not apply to equipment that has been subjected to misuse, negligence, accident or
tampering in any way so as to affect its normal performance. To activate lifetime warranty, customer must register each tool at www.dynabrade.com. Dynabrade will not honor
lifetime warranty on unregistered tools. A one-year warranty will be honored on all unregistered portable pneumatic power tools. Lifetime warranty applies only to portable
pneumatic tools manufactured by Dynabrade, Inc. in the USA. Lifetime warranty applies only to the original tool owner; warranty is non-transferable.
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