Dynabrade 21040, 21051, 21001, 21014, 21021 Operation And Maintenance Manual

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 alerted from the original design without expressed written consent from Dynabrade, Inc.

Tool Intent: Dynorbital-Spirit

®

Random Orbital Sander is used for sanding and finishing a variety of materials including wood, metal, plastic, fiberglass, solid surfaces,

composites, rubber, glass and stone.

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 Dynorbital-Spirit

®

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

Accessory Selection:

• 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.

• Follow tool specifications before choosing size and type of accessory.

• Only use recommended fittings and air line sizes. Air supply hoses and air hose assemblies must have a minimum working pressure rating of 150 PSIG (10 bars, g) or 150
percent of the maximum pressure produced in the system, whichever is higher. (See Tool Machine Specifications Table.)

Parts Page Reorder No. APD07•03

Effective February, 2007

Supersedes APD03•02

Dynorbital-Spirit

®

Air Tool Manual – Safety, Operation and Maintenance

Models:

3/8" Orbit 3/16" Orbit 3/32" Orbit

21000 21011 21020 21031 21040 21051
21001 21014 21021 21034 21041 21054
21004 21015 21024 21035 21044 21055
21005 21016 21025 21036 21045 21056
21006 21019 21026 21039 21046 21059
21009 21060 21029 21061 21049 21062
21010 21063 21030 21064 21050 21065

FOR COMPLETE MODEL DESCRIPTION REFERENCE PAGE 6.

SAFETY LEGEND

G

Read and understand tool manual before

work starts to reduce risk of injury to

operator, visitors, and tool.

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.

Practice safety requirements. Work alert,

have proper attire, and do not operate tools under

the influence of alcohol or drugs.

Ear protection to be worn when exposure to sound,

exceeds the limits of applicable Federal, State or

local statues, ordinances and/or regulations.

Air line hazard, pressurized supply lines and flexible

hoses can cause serious injury. Do not use damaged,

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 Standards
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

12,000 RPM Air Powered Random Orbital Sander

For Serial No. 7B1000E and Higher

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.

FIND THE MOST CURRENT OFFERING OF SUPPORT DOCUMENTS AND ACCESSORIES @ WWW.DYNABRADE.COM

AUTOMOTIVE

WARNIN

WARNING

WARNING

WARNING

WARNING

WARNING

WARNING

WARNING

To Tool Station

Closed Loop Pipe System

(Sloped in the direction of air flow)

Ball

Valve

Ball

Valve

Filter

Coupler

Regulator

Lubricator

Air Flow

Drain
Valve

Drain
Valve

Air Tool

Air Compressor

and Receiver

Drain
Valve

Air Hose

Air Flow

Refrigerated

Air Dryer

2

Filter

Regulator

Lubricator

90 PSIG

(6.2 Bar)

OPERATING INSTRUCTIONS

Warning: Always wear eye protection. Operator of tool is responsible for following: accepted eye, face, respiratory, hearing and body protection.
Caution: Hand, wrist and arm injury may result from repetitive work, motion and overexposure to vibration.

• Keep hand and clothing away from working end of the air tool.

Operation: Be sure that any loose clothing, hair and all jewelry is properly restrained.

• Secure inlet bushing on air tool with a wrench before attempting to install the air fitting to avoid damaging housing assembly.

• Check tool RPM (speed) with tachometer with air pressure set at 90 PSIG while the tool is running. If tool is operating at a higher speed than the RPM marked on the tool
housing, or operating improperly, the tool must be serviced and corrected before use.

Caution: Tool RPM must never exceed abrasive/accessory RPM rating. Check accessory manufacturer for details on maximum operating speed or special

mounting instructions.

• With power source disconnected from air tool, mount recommended accessory into collet assembly.

• Connect air tool to power source. Be careful NOT to depress throttle lever in the process. Do not expose air tool to inlet pressure above 90 PSIG or (6.2 Bars).

Caution: After installing the accessory, before testing or use and/or after assembling tool, the Dynorbital- Spirit®must be started at a reduced speed to check for good

balance. Gradually increase tool speed. DO NOT USE if tool vibration is excessive. Correct cause, and retest to insure safe operation.

• Make sure that work area is uncluttered, and visitors are at a safe range from the tools and debris.

• Use a vise or clamping device to hold work piece firmly 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.

Air System

1 DROP/MIN.

20 SCFM

LUBRICATOR SETTING

•

Ideally the air supply should be free of moisture.
To facilitate removing moisture from air supply, the
installation of a refrigerated air dryer after the
compressor and the use of drain valves at each
tool station is recommended.

•

Dynabrade Air Power Tools are designed to
operate at 90 PSIG (6.2 Bar/620 kPa) maximum
air pressure at the tool inlet, when the tool is
running. Use recommended regulator to control
air pressure.

➤

➤

➤

➤

➤

➤

90 PSIG MAX

(6.2 Bar)

Maintenance Instructions

Important: A Preventative Maintenance Program is recommended whenever portable power tools are used.

•

Use only genuine Dynabrade replacement parts to insure quality. To order replacement parts, specify Model#, Serial# and RPM of your air tool.

•

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 Filter-Regulator-Lubricator (FRL) – Provides accurate
air pressure regulation and two stage filtration of water contaminates. Operates 40 SCFM/1,133 LPM @ 100 PSIG with 3/8" NPT female ports.

•

Dynabrade recommends one drop of air lube per minute for each 20 SCFM (example: if the tool specification states 40 SCFM, set the drip rate on the
filter-lubricator to 2 drops per minute). Dynabrade Air Lube (P/N 95842: 1 pt 473 ml) is recommended.

Routine Preventative Maintenance: Check free speed of Dynorbital-Spirit

®

using a tachometer.

•

Mineral spirits are recommended when cleaning the tool and parts. Do not clean tool or parts with any solvents or oils containing acids, esters,
ketones, chlorinated hydrocarbons or nitro carbons.

•

DO NOT clean or maintain tools with chemicals that have a low flash point (example: WD-40

®

).

•

A Drop-In Motor and Tune-Up Kit are available, see specific kit number on page 9.

•

Air tool stampings must be kept legible at all times, if not, reorder and replace. User is responsible for maintaining specification information i.e.:
Model #, S/N, and RPM.

•

Blow air supply hose out prior to initial use.

•

Visually inspect air hoses and fittings for frays, visible damage and signs of deterioration. Replace damaged or worn components.

•

Refer to Dynabrade's Warning/Safety Operating Instructions Tag (Reorder No. 95903) for safety information.

After maintenance is performed on tool, add a few drops of Dynabrade Air Lube (P/N 95842) to the air line and start the tool a few times to lubricate air motor.
Check for excessive tool vibration.

Handling and Storage:

•

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.

Notice

All Dynabrade motors use the highest quality parts and materials 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.

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.

3

1. American National Standards Institute – ANSI

25 West 43

rd

Street
Forth Floor
New York, NY 10036
Tel: [phone]
Fax: [phone]

3. European Committee for Standardization

Rue de Stassart 36
B - 1050 Brussels, Belgium

2. Government Printing Office – GPO

Superintendent of Documents
Attn. New Orders
P.O. Box 371954
Pittsburgh, PA 15250-7954
Tel: [phone]

Reference Contact Information

Dynorbital-Spirit

®

Complete Assembly

4

23 N•m

T

Note: To order replacement parts specify the Model # and Serial # of your machine.

A

8

O

1

O

1

O

1

A

2

A

2

O

1

O

1

O

1

1

2

3

4

21

15

20

19

17

16

14

13

15

12

11

10

9

8

7

6

5

30

22

25

24

23

27

34

28

31

32

O

T

A

Oil: O1= Air Lube

Adhesive: A

2

= Loctite #271

A8= Loctite #567

Torque: N•m x 8.85 = In. - lbs.

KEY

17 N•m

T

See page 5 for Machine

Exhaust Assemblies.

33

Highly Recommended

Drop-in Complete Motor Assemblies

Orbit 3" & 3-1/2" 5" 6"

3/8" 59450 59453 59456
3/16" 59451 59454 59457
3/32" 59452 59455 59458

Orbit 3" & 3-1/2" 5" 6"

3/8" 59070 59071 59072
3/16" 59060 59061 59062
3/32" 59065 59066 59067

All above parts are included in Drop-in Motors.

Note: 59058 Lock Ring only included with

3/8" Orbit Drop-in Motors.

For assembly instructions, see page 6.

For Models:

21000, 21001, 21004, 21005, 21006, 21009
21010, 21011, 21014, 21015, 21016, 21019
21020, 21021, 21024, 21025, 21026, 21029
21030, 21031, 21034, 21035, 21036, 21039
21040, 21041, 21044, 21045, 21046, 21049
21050, 21051, 21054, 21055, 21056, 21059
21060, 21061, 21062, 21063, 21064, 21065

18

26

29

1 Sanding Pads (See Pg. 10)
2 Vacuum Lip-Seal Shroud

57089 5" & 6"

3 Vacuum Shroud

57084 3-1/2"

4 Shroud (Non-Vac)

54458 3-1/2"
56051 5" & 6" (Lip Seal)

5 95630 Snap Ring
6 57069 Balancer Shaft
7 59084 V-Seal
8 56052 Bearing
9 Motor Shaft Balancer

10 56047 Key
11 59058 Lock Ring

12 50659 O-Ring
13 59057 “Top Hat” Seal
14 59083 Felt
15 58368 Bearing (2)
16 59076 Front Bearing Plate
17 57113 Rotor/Blade Set
18 01024 O-Ring
19 59051 Cylinder
20 59077 Rear Bearing Plate
21 98463 Retaining Ring
22 95697 Retaining Ring
23 Housing (See Chart, Pg. 6)
24 59054 Throttle Lever - 3/8"

59052 Throttle Lever - 3/16"
59053 Throttle Lever - 3/32"

25 94590 Pin
26 98459 O-Ring
27 58363 Valve Stem
28 59075 Speed Regulator
29 01025 O-Ring (2)
30 01464 Seal
31 58365

Tip Valve

32 01468 Spring
33 01494 Inlet Bushing
34 57041 Comfort Platform

Index Key

No. Part # Description