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Parts Page Reorder No. PD04•33R

Effective June, 2004

Supersedes PD04•33

1 hp Cut-Off Tools

6" Extension, Governor Controlled

Air Tool Manual – Safety, Operation and Maintenance

Models:

52576 – 15,000 RPM, 3" Cut-Off
52577 – 18,000 RPM, 3" Cut-Off
52578 – 20,000 RPM, 3" Cut-Off

52579 – 15,000 RPM, 4" Cut-Off
52580 – 18,000 RPM, 4" Cut-Off
52581 – 20,000 RPM, 4" Cut-Off

SAFETY LEGEND

WARNING

WARNING

Read and understand tool manual before

work starts to reduce risk of injury to

operator, visitors, and tool.

WARNING

Eye protection must be worn at all times,

eye protection to conform to ANSI Z87.1.

WARNING

Respiratory protection to be used when exposed to

contaminants that exceed the applicable threshold

limit values required by law.

WARNING

Practice safety requirements. Work alert,

have proper attire, and do not operate tools under

the influence of alcohol or drugs.

WARNING

Ear protection to be worn when exposure to sound,

exceeds the limits of applicable Federal, State or

local statues, ordinances and/or regulations.

WARNING

Air line hazard, pressurized supply lines and flexi-

ble hoses can cause serious injury. Do not use dam-
aged, frayed or deteriorated air hoses and fittings.

Read and understand this tool manual before operating your air tool. Follow all safety rules for the protection of operating personnel
as well as adjacent areas. Always operate, inspect and maintain this tool in accordance with the American National Safety Institute
(ANSI) Safety Code for Portable Air Tools – B186.1. For additional safety information, refer to Safety Requirements for the Use, Care
and Protection of Abrasive Wheels – ANSI B7.1, Code of Federal Regulation – CFR 29 Part 1910, European Committee for Standards
(EN) Hand Held Non-Electric Power Tools – Safety Requirements and applicable State and Local Regulations.

SAVE THIS DOCUMENT, EDUCATE ALL PERSONNEL

SAFETY INSTRUCTIONS

Carefully Read all instructions before operating or servicing any Dynabrade

®

Abrasive Power Tool.

Products offered by Dynabrade are not to be modified, converted or otherwise altered from the original design without expressed written consent from Dynabrade, Inc.
Tool Intent: 

Abrasive Cut-Off Tools are ideal for cutting off all types of materials, metals and steel, including stainless and steel alloys.

Do Not Use Tool For Anything Other Than Its Intended Applications.

This power tool is not intended for use in potentially explosive atmospheres and is not insulated against contact with electrical power.

Training: 

Proper care, maintenance, and storage of your tool will maximize its performance.

• Employer's Responsibility  – Provide cut-off tool operators with safety instructions and training for safe use of tools and accessories.

Accessory Selection:

• DO NOT use – non-reinforced cut-off wheels.
• Abrasive/accessory RPM (speed) rating MUST be approved for AT LEAST the tool RPM rating.
• Before mounting an accessory, visually inspect for defects. Do not use defective accessories.
• Mount only recommended accessories. See back page of manual and Dynabrade catalog.
• Follow tool specifications before choosing size and type of accessory
• Only use recommended fittings and air line sizes. Air supply hoes and air hose assemblies must have a minimum working pressure rating of 150 PSIG (10 bars, g) or 150

percent of the maximum pressure in the system, whichever is higher. (See tool Machine Specifications table.)

OPERATING INSTRUCTIONS

Warning: 

Always wear eye protection. Operator of tool is responsible for following: accepted eye, face, respiratory, hearing and body protection. 

Always use wheel guard.

Make sure it is positioned to best protect the operator and make sure it is fastened. Wheel guards that have been subject to a wheel breaking must be replaced.

Summary of Contents for 52576

Page 1: ...d applicable State and Local Regulations SAVE THIS DOCUMENT EDUCATE ALL PERSONNEL SAFETY INSTRUCTIONS Carefully Read all instructions before operating or servicing any Dynabrade Abrasive Power Tool Products offered by Dynabrade are not to be modified converted or otherwise altered from the original design without expressed written consent from Dynabrade Inc Tool Intent Abrasive Cut Off Tools are i...

Page 2: ...irmly in place Do not apply excessive force on tool or apply rough treatment to it Always work with a firm footing posture and proper lighting Report to your supervisor any condition of the tool accessories or operation you consider unsafe CUT OFF WHEEL MOUNTING Typical Mounting for Type 1 Cutting Off Wheels Mount reinforced cutting off wheel 1 8 3 0mm Maximum Thickness Use factory recommended fla...

Page 3: ...mmended Protect tool inlet from debris see Notice below DO NOT carry tool by air hose Protect abrasive accessories from exposure to water solvents high humidity freezing temperature and extreme temperature changes Store accessories in protective racks or compartments to prevent damage DO NOT use cutting off wheels that show signs of cracks nicks or other defects Notice All Dynabrade motors use the...

Page 4: ...Remove housing and 51989 Repair Collar and lay repair collar on bench with flange facing down so the collar is supported by throttle lever Place a 3 32 2 4mm drift pin on 96444 Pin and tap pin thru housing 6 Remove 51946 Valve Stem Assembly Remove 96443 O Ring from 51946 Valve Stem Assembly Housing Disassembly Complete Assembly Instructions 1 Hp Cut Off Extension Tool Motor Assembly Important Be s...

Page 5: ...ng 27 Apply Loctite 567 or equiv to external threads on housing 28 Align 51936 Coupling insert onto 51935 Coupling in extension handle 29 Thread housing assembly onto extension handle 30 Secure front end of housing in a padded vise align the vise jaws with machined flat on the silver ring 31 Apply wrench at wrench flats on 51952 Extension Handle and torque handle onto housing to 28 N m 250 lbs in ...

Page 6: ...51949 Safety Lever Assembly 32 51946 Valve Stem Assembly Incl 96443 O Ring 33 51945 Valve Seat 34 51944 Tip Valve 35 51943 Spring 36 96442 O Ring 37 51940 Spacer 38 53682 Gasket 39 94528 Felt Silencer 40 53686 Muffler Cap 41 94924 Wave Spring 42 53683 Spacer 43 53681 Inlet Bushing Incl 2 51938 Screens 44 53655 Muffler Assembly 45 53690 Grip Index Key No Part Description 46 00001248 Warning Label 4...

Page 7: ...rt 1 X 13 96498 Wave Spring 1 T L 14 95438 O Ring 1 T X 15 53620 Adapter 1 X 16 54520 Bearing 1 T X 17 51951 Shim Pack 1 T X 18 51922 Front Bearing Plate 1 X 19 96441 Pin 1 X 20 51927 Spacer 1 T X 21 51921 Rotor 1 X 22 51926 Blade 4 Pkg 1 T X 23 51925 Cylinder 1 X 24 51923 Rear Bearing Plate 1 X 25 02057 Bearing 1 T X 26 96445 Pin 2 X 27 51924 Gasket 1 T X 28 See Note Governor Assembly 1 X 29 See ...

Page 8: ...ir Collar Specially designed collar for use in vise to prevent damage to valve body of tool during disassembly assembly 96005 Male Plug Provides up to twice the air flow compared to standard plug design Plug has ported design to prevent starving of the air tool 53621 Over Hose Assembly Over Hose Assembly directs exhaust away from operator Dynabrade Air Lube Formulated for pneumatic equipment Absor...

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