Dynorbital X51, X51H, X52, X51V, X52H Safety, Operation And Maintenance Manual

Dynorbital®Extreme

Random Orbital Sander Series

PD17.01

February, 2017

Model Pad Type Pad Dia. Orbit Dia. Vacuum

X51

Vinyl-Face

5"

(127 mm)

3/16"

(5 mm)

Non-Vacuum

X51H

Hook-Face

X51V

Central Vacuum

X52

Vinyl-Face

3/32"

(2.5 mm)

Non-Vacuum

X52H

Hook-Face

X52V

Central Vacuum

X61

Vinyl-Face

6"

(152 mm)

3/16"

(5 mm)

Non-Vacuum

X61H

Hook-Face

X61V

Central Vacuum

X62

Vinyl-Face

3/32"

(2.5 mm)

Non-Vacuum

X62H

Hook-Face

X62V

Central Vacuum

Safety, Operation and Maintenance – Save This Document and Educate All Personnel

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 abrading materials with coated abrasive systems – ANSI B7.7, 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 – 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.

SANDER / POLISHER

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: Dynorbital®Extreme Random Orbital Sanders are used for sanding and finishing a variety of materials

including wood, metal, plastic, fiberglass, solid surfaces, composites, rubber, glass and stone.

SAFETY and OPERATING INSTRUCTIONS

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.

X51

MAINTENANCE INSTRUCTIONS

Important: To keep tool safe, a Preventative Maintenance Program is
recommended. The program should include inspection of the tool and all
related accessories and consumables, including air lines, pressure regulators,
filters, oilers, etc. (refer to CAGI B186.1 for additional maintenance
information). If accessory or tool breakage occurs, investigate failure to
determine the cause and correct before issuing tool for work. Use the following
schedule as a starting point in developing a Preventative Maintenance
Program. If tool does not operate properly (RPM, vibration, start/stop) after
these scheduled checks or at any time, the tool must be repaired and
corrected before returning tool to use.

INSTALLATION

• To ensure long life and dependable service, use a Closed Loop Air System
and Filter-Regulator-Lubricator (FRL) as diagramed below.

• Each tool should have its own dedicated hose connected to an air supply
FRL. Quick disconnects should be installed at the FRL in an effort to reduce
contamination into the tool. Securely affix all fittings and hose assemblies.

• 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: 10690 Air Line Filter-Regulator-Lubricator — Provides
accurate air pressure regulation, two-stage filtration of water contaminants
and micro-mist lubrication of pneumatic components.

• Dynabrade recommends 1 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). 95842 Dynabrade Air Lube
is recommended.

MAINTENANCE SCHEDULE

Maintenance schedules depend on the type and style of tool. Refer to page
3 to reference symbols associated with specific maintenance items/areas.
Match maintenance schedules accordingly. See page 4 for any additional
maintenance information.

Note: Turbine style air motors do not require oil.

Daily (every 8 hours):

• Inspect tool and accessories for damage or broken parts. Replace items
as necessary to ensure proper operation and safety.

Lubricate motor as recommended. Use 95842 Dynabrade Air Lube
(10W/NR). Apply 1 drop/minute of air lube per 20 SCFM.

• Check air line pressure with a gage. (MAX. 90 PSIG or 6.2 Bar operating
pressure at the air inlet of the tool.)

Lubricate wick system and right angle gears through gear case
fitting. Apply 3 plunges of 95848 Gear Oil. Use 95541 Lubricant Gun
(Prime lubricant gun before use).

• Check tool for proper operation: If operating improperly or demonstrates
unusual vibration, the tool must be serviced and problem corrected before
further use.

Every 20 Hours/Once a Week (which ever comes first):

For tools without "wick system", lubricate right angle gears through
lubricant fitting. Apply 1 plunge of 95544 Grease. Use 95541
Lubricant Gun. (Prime lubricant gun before use).

• Measure RPM (speed) by setting air pressure to 90 PSIG (6.2 Bar) at
tool inlet, without accessory mounted, while the tool is running. Using

tachometer, check spindle speed of the tool. Unless otherwise stated the
no-load speed may not exceed the rated speed. If tool speed exceeds
maximum rated RPM, service as required and correct before use.

• If tool is running too fast: look for worn, damaged or missing governor, air
control rings and silencer(s). Service as required.

• If tool is running too slow: look for malfunctioning governor, clogged inlet
screen, silencer(s) or air stream. Service as required.

Note: Special care must be taken when servicing governors. Refer to specific
tool manual for governor instructions and/or speed control devices. Governor
assemblies made from molded plastic components are non-serviceable and
must be replaced.

Every 50 Hours:

Lubricate planetary gears through gear case fitting with 3 plunges
of 95544 Grease. Use 95541 Lubricant Gun. (Prime lubricant gun
before use).

REPAIR

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

• 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.

• A Motor Tune-Up Kit is available which includes high wear and medium
wear motor parts.

• Air tool markings must be kept legible at all times, if not, reorder housing
and replace. User is responsible for maintaining specification information.

After maintenance is performed on tool, add a few drops of 95842
Dynabrade Air Lube to the tool inlet and start the tool a few times to
lubricate air motor. Verify RPM (per 20 hr maintenance schedule),
vibration and operation.

HANDLING & STORAGE

• Use of tool rests, hangers and/or balancers is recommended.

• Protect tool inlet from debris (see Notice below).

• Do Not carry tool by air hose or near the tool throttle lever.

• Store accessories in protective racks or compartments to prevent damage.

• Follow the handling instructions outlined in the operating instructions when
carrying the tool and when changing accessories.

• Protect accessories from exposure to water, solvents, high humidity,
freezing temperature and extreme temperature changes.

END OF USE/ DISPOSAL

When tool has reached its end of useful service, disassemble tool into its
primary components (i.e. steel, aluminum and plastic) and recycle or discard
per local, state and/or federal regulations as to not harm the environment.

NOTICE

All Dynabrade air motors use the highest quality parts available and are
manufactured to exacting tolerances. Air motor failures are often traced to lack
of lubrication or unclean air supply. Compressed air can force dirt and other
contaminants into motor bearings causing early failure. Contaminants can score
cylinder wall and vanes resulting in reduced efficiency and power. Our warranty
obligation is contingent upon proper use of our tools. Air motors which have been
subjected to misuse, contaminated air or lack of lubrication will void warranty.

Filter

Regulator

Lubricator

Lubricator Setting

90 PSIG

(6.2 Bar)

Air Flow to Tool Station

Ball

Valve

Ball

Valve

Air Flow

Drain
Valve

Drain
Valve

Air Tool

Air Compressor and Receiver

Drain Valve

Air Hose

90 PSIG Max.

(6.2 Bar)

Air Flow

Refrigerated

Air Dryer

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

• Ideally the air supply should
be free from 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.

‰

‰

‰

‰

‰

‰

CLOSED LOOP AIR SYSTEM

Sloped in Direction of Air Flow

O

W

G

O

2

‰

~

1 Drop/Minute per 20 SCFM

G

Models

X51, X51H, X51V, X52, X52H, X52V -

5" Diameter

X61, X61H, X61V, X62, X21H, X62V -

6" Diameter

Dynorbital®Extreme

Complete Assembly

ITEM P/N DESCRIPTION QTY.

1

56106T
54325T

54334
56107T
54327T

54339

PAD – X51, X52
PAD – X51H, X52H
PAD – X51V, X52V

PAD – X61, X62
PAD – X61H, X62H
PAD – X61V, X62V

1

2

59340
59341

SHROUD – X51, X51H, X52, X52H, X61, X61H, X62, X62H

SHROUD – X51V, X52V, X61V, X62V

1

3 59058 LOCK RING 1

4

59350
59351
59360
59361

MOTOR ASSEMBLY – X51, X51H, X51V
MOTOR ASSEMBLY – X52, X52H, X52V
MOTOR ASSEMBLY – X61, X61H, X61V
MOTOR ASSEMBLY – X62, X62H, X62V

1

4.1 57069 SHAFT 1

4.2 95630 SNAP RING 1

4.3 59084 SEAL 1

4.4 56052 BEARING 1

4.5

59061
59066
59062
59067

SHAFT BALANCER – X51, X51H, X51V
SHAFT BALANCER – X52, X52H, X52V
SHAFT BALANCER – X61, X61H, X61V
SHAFT BALANCER – X62, X62H, X62V

1

4.6 59057 FRONT BEARING SEAL 1

4.7 59083 FELT WASHER 1

4.8 58368 BEARING 2

4.9 59333 FRONT BEARING PLATE 1

4.10 59134 CYLINDER SLEEVE 1

4.11 95529 O-RING 1

4.12 59133 CYLINDER SLEEVE ADAPTER 1

4.13 01024 O-RING 1

4.14 56047 KEY 1

4.15 59380 ROTOR / VANE ASSEMBLY 1

4.16 59332 REAR BEARING PLATE 1

5

59355
59371
59365
59357
59373
59367
59356
59372
59366
59358
59374
59368

HOUSING – X51
HOUSING – X51H
HOUSING – X51V
HOUSING – X52
HOUSING – X52H
HOUSING – X52V
HOUSING – X61
HOUSING – X61H
HOUSING – X61V
HOUSING – X62
HOUSING – X62H
HOUSING – X62V

1

6 95578 PIN 1

7 97045 PLUNGER PIN 1

8

59337
59338

THROTTLE LEVER – X51, X51H, X61, X61H, X51V, X61V
THROTTLE LEVER – X52, X52H, X62, X62H, X52V, X62V

1

9 45310 TIP VALVE SEAL 1

10 58365 TI P VALV E 1

11 01468 SPRING 1

12 56027 MUFFLER INSERT 5

13 59346 GASKET 1

14

59342

59343

EXHAUST COVER – X51, X51H, X52, X52H,

X61, X61H, X62, X62H

EXHAUST COVER – X51V, X61V, X52V, X62V

1

15 59339 VACUUM CUFF – X51V, X61V, X52V, X62V 1

16 59335 INLET BUSHING 1

— 50679 OPEN END WRENCH – 26mm 1

Adhesive: A2= Loctite #271

A

8

= Loctite #567

Oil: O1= Air Lube

O

A

T

T

x

KEY

Always follow adhesive manufacturers

cleaning and priming recommendations.

Torque: N•m x 8.85 = lb•in.

X = Torque Value (N•m)

T

23

3

O

1

A

8

1

2

4.2

4.3

4.5

4.6

4.7

4.8

4.8

4.9

4.10

4.12

4.15

4.16

4.14

5

6

7

8

9

10

11

12

13

14

15

16

O

1

O

1

O

1

4.11

4.13

A

2

A

2

4.4

4.1

T

23

3

DYNABRADE, INC. www.dynabrade.com

8989 Sheridan Drive •Clarence, NY 14031-1419 •Phone: [phone] •Fax: [phone] •International Fax: [phone]

© DYNABRADE, INC., 2017

OPTIONAL ACCESSORIES

RAPTOR VAC®VACUUM SYSTEMS

MACHINE SPECIFICATIONS

LIFETIME WARRANTY

To validate Dynabrade Lifetime Warranty, you must register each tool at: www.dynabrade.com. Registration of each tool at website is required.
Dynabrade will not honor Lifetime Warranty on unregistered tools. Please view the entire Lifetime Warranty Policy at www.dynabrade.com.

Additional Specifications: Air Inlet Thread 1/4" NPT • Hose I.D. 1/4" (6 mm) • Pad Thread 5/16"-24 Female

Model Pad Type Pad Dia. Vacuum Power Air Consumption Weight Length Height

X51 Vinyl-Face

5"

(127 mm)

Non-Vacuum

.3 hp

(224 W)

19 SCFM

(538 LPM)

1.78 lb. (0.8 kg) 6.9" (176 mm)

3.7"

(95 mm)

X51H

Hook-Face

X51V Central Vacuum 1.94 lb. (0.9 kg) 9.1" (230 mm)

X52 Vinyl-Face

Non-Vacuum 1.74 lb. (0.8 kg) 6.9" (175 mm)

X52H

Hook-Face

X52V Central Vacuum 1.90 lb. (0.9 kg) 9.1" (230 mm)

X61 Vinyl-Face

6"

(152 mm)

Non-Vacuum 1.86 lb. (0.8 kg) 7.4" (188 mm)

X61H

Hook-Face

X61V Central Vacuum 2.02 lb. (0.9 kg) 9.5" (242 mm)

X62 Vinyl-Face

Non-Vacuum 1.82 lb. (0.8 kg) 7.4" (188 mm)

X62H

Hook-Face

X62V Central Vacuum 1.98 lb. (0.9 kg) 9.5" (242 mm)

Dynabrade Air Lube

•

Formulated for pneumatic equipment.

•

Absorbs up to 10% of its weight in water.

•

Prevents rust and formation of sludge.

•

Keeps pneumatic tools operating longer
with greater power and less down time.

Part No. 95842: 1pt. (473 ml)
Part No. 95843: 1 gal. (3.8 L)

Whip Hose

•

1" diameter conductive vacuum hose with
Swivel Cuff 31916 for attachment to our
Raptor Vac

®

standard 1-1/4" hose

•

5/16" diameter air line with (2)1/4" NPT
male fittings, 1/4" female Mega Flow Plug
and is protected by a braided hose sleeve.

Part No. 31917: 2 meter

Dynorbital

®

Extreme, is compatible with Dynabrade

Raptor Vac

®

systems using 31917 Whip Hose or

standard Dynabrade Raptor Vac

®

hose assemblies.

REFERENCE CONTACT INFORMATION

Visit dynabrade.com for your model’s current vibration and sound data.

American National Standards Institute (ANSI)

25 West 43 Rd St., 14th Floor • New York, NY 10036 • Tel: [phone]

Compressed Air & Gas Institute

1300 Sumner Ave. • Cleveland, OH 44115-2851
Tel: [phone] • Fax. [phone]

European Committee for Standardization

Rue de Stassart 36 • B - 1050 Brussels, Belgium

International Organization of Standards

Case postale 56 • CH-1211 Geneva 20
Tel: + 41 22 749 01 11 • Fax: + 41 22 749 09 47

Government Printing Office

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

Tune-Up Kit

•

Contains high and
medium wear parts.

Part No. 96576

Drop-In Motor Assemblies

Orbit Dia. 5" Dia. Models 6" Dia. Models

3/16" 69480 69482

3/32" 69481 69483