3M 3125 User Manual

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Nib Removal Sander 3125
Owner’s manual

A table of contents:

a. SAFETY INFORMATION 1
b. OPERATING INSTRUCTION 3
c. SPARE PARTS INFORMATION (exploded view) 4
d. DISASSEMBLY METHOD 6
e. GUIDELINE FOR PARTS EXCHANGE 10
f. ASSEMBLY METHOD 11
Appendix. - TROUBLESHOOTING SPIDER CHART

a. SAFETY INFORMATION

Please read, understand, and follow all safety information contained in these instructions prior to the use of this tool.
Retain these instructions for future reference.
Intended Use:

This tool is designed for repairing painted automobile bodies and parts as well as FRP (Fiber Reinforced Plastic) and wood. It
should not be operated in water or in an excessive wet application. All users should review this document and be trained in the
safe use of this tool.

Improper use can cause this tool to break apart and may cause injury to operators and bystanders. **

* For eye and face protection, see ANSI standard Z87.1
** For further information on coated abrasive products, consult ANSI standard B7.7, “Safety Requirement for Abrading
Material with Coated Abrasive Systems” Both are available from American Standard Institute, Inc., [phone]

SPECIFICATION

Motor RPM Orbit Dia. Air flow Air Pressure Weight Pad Size

7,500 0.118 inch 5.3 SFM 58. 5 - 95.0 PSI 1.06 pounds 1.18 inch

(3 mm) (150 LPM) (0.40 - 0.65 Mpa) (0.48 kg) (30 mm)

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HOW TO HANDLE

• This tool is designed for repairing painted automobile bodies and parts as well as FRP (Fiber Reinforced Plastic) and
wood. It should not be operated in water or in an excessive wet application.

• Check for loose screws and missing parts before operation.

• Connect air hoses after cleaning connecting part to reduce contamination from foreign objects, dust, sand, etc.

• During inspection of each part make sure to detach air hoses.

• When connecting air hoses with an air tool, do not squeeze the trigger.

• Do not throw the tool.

• Do not drag the tool while holding the air hose.

• Do not use the tool in a non-recommended application.

• Operation without lubricants will cause rapid wear on the motor and can lead to rotation failure.

• Prior to storing lubricate the tools at a low speed to spread oil inside the motor.

• Select a dry and safe place for storage.

• Frequent cleaning of air connections will reduce contamination of the motor.

• Abnormal noise or vibration during operation indicates an immediate need for tool repair.

• If repair is necessary notify sales office or repair center from where you purchased this tool regarding inspection and
repair.

• Use only 3M-recommended replacement parts.

PRIOR TO THE OPERATION

• Keep the work area clean, orderly and free of obstacles.

• Inspect for loose parts (tool and attachment) prior to operation.

• Confirm that air pressure supply is at recommended pressure (95psi/0.65 MPa).

• When connecting to an air hose ensure a secure connection that will not loosen during operation.

• Center the abrasive on the backup pad.

• Press the abrasive securely into place.

START AND STOP

• Place the tool in contact with the work piece.

• Start the tool by pressing the lever/trigger lightly.

• Start the tool on the polishing plain during work.

• Slow the tool down before removing from the work piece.

• Remove tool at a 90 degree angle from the work piece.

• Detach air hose when the tool is not in use.

• Detach the tool from the air source when transporting.

DURING OPERATION

• Speed can be adjusted from low to high with the speed controller knob. Adjust the speed in accordance to the work being
done.

• Do not apply excessive force to the tool. Excessive force can lead to inefficient tool performance and decrease tool life.

Product Use:

or experience that 3M believes are reliable. However, many factors beyond 3M’s control can affect the use and performance of a
3M product in a particular application, including the conditions under which the 3M product is used and the time and
environmental conditions in which the product is expected to perform. Since these factors are uniquely within the user’s
knowledge and control, it is essential that the user evaluate the 3M product to determine whether it is fit for a particular purpose
and suitable for the user’s method of application.

All statements, technical information and recommendations contained in this document are based upon tests

Warranty and Limited Remedy: Unless stated otherwise in 3M’s product literature, packaging inserts or product

packaging for individual products, 3M warrants that each 3M product meets the applicable specifications at the time 3M ships the
product. Individual products may have additional or different warranties as stated on product literature, package inserts or product

packages.

3M MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,

ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY
IMPLIED WARRANTY ARISING OUT OF A COURSE OF DEALING, CUSTOM OR USAGE OF TRADE

responsible for determining whether the 3M product is fit for a particular purpose and suitable for user’s application. If the 3M
product is defective within the warranty period, your exclusive remedy and 3M’s and seller’s sole obligation will be, at 3M’s

option, to repair or replace the product or refund the purchase price.
law, 3M and seller will not be liable for any loss or damage arising from the 3M product, whether direct, indirect, special,
incidental or consequential, regardless of the legal theory asserted, including warranty, contract, negligence or strict liability.

Limitation of Liability: Except where prohibited by

. User is

Submitting a Warranty Claim

Contact your dealer when submitting a warranty claim in accordance with the restrictions listed above. Please note that all
warranty claims are subject to manufacturer’s approval. Be sure to keep your sales receipt and Product Inspection Certificate in a
safe place. These must be submitted when filing a warranty claim, within 90 days from the date of purchase.

Product Repair after Warranty Has Expired

3M does not offer repair service for product out of warranty. Please contact your dealer for the repair parts listing. For further
technical information, visit: http://solutions.3m.com/en_US/Products/ and go to Abrasives & Sandpaper link and follow the
instructions.

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b. OPERATING INSTRUCTION

At work

- Check to see that the workplace is in order and is appropriate for the work.

- Inspect for loose parts.

- Confirm the proper air pressure (0.4 to 0.65 MPa)

- Tighten all couplings securely so that they will not be loosened by vibration.

- Attach buffing material or paper by pressing it uniformly with the palm of hand to attach it

securely.

Speed control

Valve lever

Pad

Skirt

Starting and stopping

- The tool starts when the valve lever is pressed lightly. It stops when the lever is
released.

- Operate the lever as the abrasive contacts the surface to be polished. When the tool is
transported, be sure to remove the air hose.

During use

- The tool can be adjusted continuously from low to high speed by the speed control.
Adjust it according to the work.

- Do not press it onto the surface to be polished with excess force. This does not
increase efficiency, but it shortens tool life.

Speed control

After use

- ⋅Apply spindle oil to the air supply opening and operate the tool at low speed. After use,
be sure to remove the air hose and store the tool in a safe, dry place.

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c. Spare Parts information

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