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Safety, Operation and Maintenance 

Save This Document and Educate All Personnel

Parts Page Reorder No. PD12•22

Effective June, 2012

WARNING

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 Standards Institute (ANSI).
Safety Requirements for the Use, Care and Protection of Abrasive Wheels – ANSI B7.1, Compressed Air and Gas Institute (CAGI) Safety Code
for Portable Air Tools – B186.1, Code of Federal Regulation – CFR 29 Part 1910, International Organization for Standardization (ISO) Hand
Held Non-Electric Power Tools – ISO 11148, Safety Requirements and applicable State and Local Regulations.

Find The Most Current Offering of Support Documents and Accessories at www.Dynabrade.com

Read and understand tool manual before work starts
to reduce risk of injury to operator, visitors, and tool.

Ear protection to be worn when exposure to sound, 
exceeds the limits of applicable Federal, State or 
local statues, ordinances and/or regulations.

Practice safety requirements. Work alert, have proper
attire, and do not operate tools under the influence 
of alcohol or drugs.

Air line hazard, pressurized supply lines and flexible 
hoses can cause serious injury. Do not use damaged,
frayed or deteriorated air hoses and fittings.

Eye protection must be worn at all times, eye
protection to conform to ANSI Z87.1.

Respiratory protection to be used when exposed to 
contaminants that exceed the applicable threshold 
limit values required by law.

Some dust created by sanding, grinding, drilling, and other construction activities contain chemicals known to cause cancer, birth defects
or other reproductive harm. Some examples of these chemicals are:

•  Lead from lead-based paints
•  Crystalline silica from bricks and cement and other masonry products
•  Arsenic and chromium from chemically treated lumber

Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well
ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles.

SAFETY and OPERATING INSTRUCTIONS

DO NOT USE Tool for Anything Other Than Its Intended Applications.

Training:

Proper care, maintenance, and storage of your air tool will maximize tools performance and reduce chance for accident.

Employer's Responsibility:

Provide operators with safety instructions and training for safe use of tools and accessories.

Report to Your Supervisor any Condition of the Tool, Accessories or Operation you Consider Unsafe.

Tool Intent: 

2" & 3" Diameter Disc Sanders are ideal for material removal and finishing using 2" & 3" Backup
pads with appropriate sized abrasives.

Carefully Read and Understand the General
and Sander/Polisher sections found in Tool
Safety and Operating Guidelines (PN00001676) 
Before Handling or Using Tool.

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.

Model

Pad Type

Spindle

Thread

Muffler

RPM

48520

2" Locking-Type (Female)

1/4"-20

Extended

12,000

48521

2" Locking-Type (Female)

1/4"-20

Extended

15,000

48522

2" Locking-Type (Female)

1/4"-20

Extended

20,000

48530

3" Locking-Type (Female)

1/4"-20

Extended

12,000

48531

3" Locking-Type (Female)

1/4"-20

Extended

15,000

48532

3" Locking-Type (Female)

1/4"-20

Extended

20,000

48540

2" Locking-Type (Female)

1/4"-20

Standard

12,000

48541

2" Locking-Type (Female)

1/4"-20

Standard

15,000

48542

2" Locking-Type (Female)

1/4"-20

Standard

20,000

2" & 3" Disc Sanders

Right Angle, Rear Exhaust

SANDER / POLISHER

Model 48520

Summary of Contents for 48520

Page 1: ... these chemicals are Lead from lead based paints Crystalline silica from bricks and cement and other masonry products Arsenic and chromium from chemically treated lumber Your risk from these exposures varies depending on how often you do this type of work To reduce your exposure to these chemicals work in a well ventilated area and work with approved safety equipment such as those dust masks that ...

Page 2: ... inlet screen air stream silencer s or a malfunctioning governor see concerns for servicing governors Service as required Every 50 Hours Lubricate planetary gears through gear case grease fitting with 3 plunges of grease P N 95542 and grease gun P N 95541 Prime grease gun prior to greasing REPAIR Use only genuine Dynabrade replacement parts to ensure quality To order replacement parts specify Mode...

Page 3: ... 1 13 45272 GOVERNOR ASSEMBLY 1 14 45320 GOVERNOR CHAMBER 1 15 45307 HOUSING ASSEMBLY 1 16 96077 O RING 1 17 SLEEVE See Chart Page 4 1 18 97060 PIN 1 19 45315 BUSHING 1 20 97045 PIN 1 21 45263 THROTTLE LEVER 1 22 45310 SEAL 1 23 58365 TIP VALVE 1 24 01468 SPRING 1 25 01564 AIR CONTROL RING 1 26 94535 STANDARD MUFFLER ASSEMBLY 1 26 1 95711 SNAP RING 1 26 2 01486 FELT SILENCER 4 26 3 96065 O RING 1 ...

Page 4: ...M 4 hp 298 W 78 db A 25 SCFM 708 LPM 90 PSIG 6 2 Bars 1 4 lb 0 63 kg 8 203 mm 3 5 89 mm 48531 15 000 RPM 4 hp 298 W 79 db A 25 SCFM 708 LPM 90 PSIG 6 2 Bars 1 4 lb 0 63 kg 8 203 mm 3 5 89 mm 48532 20 000 RPM 4 hp 298 W 78 db A 25 SCFM 708 LPM 90 PSIG 6 2 Bars 1 4 lb 0 63 kg 8 203 mm 3 5 89 mm 48540 12 000 RPM 4 hp 298 W 81 db A 25 SCFM 708 LPM 90 PSIG 6 2 Bars 1 1 lb 0 5 kg 6 5 164 mm 3 5 89 mm 48...

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