3M 28338 Operating and maintenance manual

1
Inline Sander INSTRUCTIONAL MANUAL
1,600 RPM 1HP and 3,500 RPM 1HP
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.
This pneumatic tool is intended for use in industrial locations, and used only by skilled, trained professionals in accordance with the instructions in this manual.
This pneumatic tool is designed to be used with abrasive products and accessories for nishing of metals, wood, stone, plastics and other materials. It should only
be used for such nishing applications and within its marked capacity and ratings. Only accessories specically recommended by 3M should be used with this
tool. Use in any other manner or with other accessories could lead to unsafe operating conditions.
Do not operate tool in water or in an excessively wet application.
Do not use abrasive products that have a Max RPM less than the RPM rating marked on the tool.
Summary of device labels containing safety information
Marking Description
WARNING: READ AND UNDERSTAND INSTRUCTION MANUAL BEFORE
OPERATING TOOL.
WARNING: ALWAYS WEAR APPROVED EYE PROTECTION
WARNING: ALWAYS WEAR APPROVED HEARING PROTECTION
WARNING: AVOID PROLONGED EXPOSURE TO VIBRATION
Direction of Rotation
Prolonged vibration may cause injury Vibration Safety Note
1,600 r/min, 3,500 r/min Maximum Rotational Speed
90 PSIG / 6.2 BAR MAX Maximum Air Pressure
Use accessories rated at tool speed or higher Accessories Speed Warning Note
Explanation of Signal Word Consequences
WARNING: Indicates a potentially hazardous situation which, if not avoided, may result in death or serious injury and/or property damage.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury and/or property damage.
Important Safety Information
Intended Use
3
Original Instructions
MSDS
WARNING!
Read the Material Safety
Data Sheets (MSDS)
before using any materials.
Contact the suppliers of the
workpiece materials and
abrasive materials for copies
of the MSDS if one is not
readily available.
Exposure to DUST generated from
workpiece and/or abrasive materials
can result in lung damage and/or other
physical injury.
Use dust capture or local exhaust as
stated in the MSDS. Wear government-
approved respiratory protection and eye
and skin protection.
Failure to follow this warning can
result in serious lung damage and/or
physical injury.
Rev. 06/27/2016

1 2
To reduce the risks associated with impact from abrasive product or tool breakup, sharp edges, hazardous pressure, rupture, vibration and noise:
• Read, understand and follow the safety information contained in these instructions prior to the use of this tool. Retain these instructions for future reference.
• Only personnel who are properly trained should be allowed to service this tool.
• Practice safety requirements. Work alert, have proper attire, and do not operate tools under the inuence of alcohol or drugs.
• Operators and other personnel must always wear protection for eyes, ears, and respiratory protection when in the work area or while operating this
product. Follow your employer’s safety policy for PPE’s and/or ANSI Z87.1 or local/national standards for eyewear and other personal protective equipment
requirements.
• Wear protective apparel, taking into consideration the type of work being done.
• Never exceed marked maximum input pressure (90 psi / .62 Mpa / 6.2 Bars).
• Proper eye protection must be worn at all times.
• Tool shall not be operated in the presence of bystanders.
• If you notice any abnormal noise or vibration when operating the product, immediately discontinue its use and inspect for worn or damaged components.
Correct or replace the suspect component. If abnormal noise or vibration still exists, return the tool to 3M for repair or replacement. Refer to warranty
instructions.
• Never operate this tool without all safety features in place and in proper working order.
• Never over-ride or disable the safety features of the start-stop control such that it is in the on position.
• Make sure the tool is disconnected from its air source before servicing, inspecting, maintaining, cleaning, and before changing abrasive product.
• Only use abrasive accessories and other accessories supplied by 3M.
• Prior to use, inspect abrasive product and other accessories for possible damage. If damaged, replace with new abrasive product and accessories available
from 3M.
• Only use accessories supplies or recommended by 3M.
• Use only with mounting hardware recommended by 3M; check with 3M for mounting hardware requirements.
• Always insure that mating accessory diameters and/or threads properly match that of tool.
• Use only with abrasive products not requiring guards according to local, state and federal regulations.
• Never allow this tool to be used by children or other untrained people.
• Do not leave an unattended tool connected to air source.
To reduce the risks associated with vibration:
• If any physical hand/wrist discomfort is experienced, work should be stopped promptly to seek medical attention. Hand, wrist and arm injury may result from
repetitive work, motion and overexposure to vibration.
• If the operator experiences symptoms such as persistent or recurring discomfort, pain, throbbing, aching, tingling, numbness, burning sensations or
stiffness, these warning signs should not be ignored. The operator should tell the employer and consult a qualied health professional.
To reduce the risks associated with loud noise:
• Always wear protection for eyes, ears, and respiratory protection while operating this product. Follow your employer’s safety policy for PPE’s and/or ANSI
Z87.1 or local/national standards for eyewear and other personal protective equipment requirements.
• Exposure to high noise levels can cause permanent, disabling hearing loss and other problems, such as tinnitus (ringing, buzzing, whistling or humming in
the ears). Therefore, risk assessment and implementation of appropriate controls for these hazards are essential.
To reduce the risks associated with re or explosion:
• Do not operate the tool in explosive atmospheres, such as in the presence of ammable liquids, gases, or dust. The abrasives are able to create sparks
when working material, resulting in the ignition of the ammable dust or fumes.
• Refer to MSDS of material being worked as to potential for creating re or explosion hazard.
• There is a risk of electrostatic discharge if used on plastic and other non-conductive materials.
To reduce the risks associated with hazardous dust ingestion or eye/skin exposure:
• Use appropriate respiratory and skin protection, or local exhaust as stated in the MSDS of the material being worked on.
To reduce the risks associated with hazardous voltage:
• Do not allow this tool to come into contact with electrical power sources as the tool is not insulated against electrical shock.
WARNING
CAUTION
To reduce the risks associated with skin abrasion, burns, cuts, or entrapment:
• Keep hands, hair, and clothing away from the rotating part of the tool.
• Wear suitable protective gloves while operating tool.
• Do not touch the rotating parts during operation for any reason.
• Do not force tool or use excessive force when using tool.
To reduce the risks associated with whipping or hazardous pressure-rupture:
• Ensure supply hose is oil resistant and is properly rated for required working pressure.
• Do not use tools with loose or damaged air hoses or ttings.
• Be aware that incorrectly installed hoses and ttings might unexpectedly come loose at any time and create a whipping/impact hazard.
To reduce the risks associated with y off of abrasive product parts:
• Use care in attaching abrasive product and mounting hardware; following the instructions to ensure that they are securely attached to the tool before use or
free-spinning.
• Never point this product in the direction of yourself or another person, or start tool unintentionally.
• Never over-tighten accessory fasteners.
To reduce the risk associated with improperly inated pneumatic wheel:
• Always inate the pneumatic wheel to sufcient pressure to properly retain the abrasive product.
• Do not over-inate or under-inate pneumatic wheel.
• Follow wheel manufacturer’s instructions for ination.

3
Parts Page
PARTS LIST FOR PN 28338, 1,600 RPM INLINE SANDER (SERIES A)
PARTS LIST FORPN 28338, 1,600 RPM INLINE SANDER
34870301586 NA
2014July18
Fig. 3M PN Description Fig. 3M PN Description
1 30380 Support Handle Ring
2 30381 Screw, 3/8-16
3 06503 Jam Nut
4 06526 Handle
5 28820 Retaining Ring
6 30377 Double Reduction Sander Gear Case
(Includes Figure 7)
7 06523 Grease Fitting (2)
8 30378 Bearing Retainer
9 30367 Ball Bearing (2)
10 30375 Output Spindle
11 30370 Pin (3)
12 30366 Needle Bearing (3)
13 30431 Planet Gear
14 30379 Spacer
15 30390 Ball Bearing
16 30428 Cantilevered Gear Carrier
17 30370 Pin (3)
18 30366 Needle Bearing (3)
19 30431 Planet Gear
20 30429 Gear Case (Includes Figure 7)
21 06609 O-Ring 3/32 in x 1 3/8 x 1 9/16
22 30432 Pinion Gear
23 30427 Wear Plate
24 06506 Ball Bearing 3/8 in x 7/8 in x 9/32 in
25 30433 Front End Plate
26 06640 Rotor
27 06643 Vane, Set of 5
28 06563 Cylinder
29 06560 Rear End Plate
30 06508 Ball Bearing
31 30369 Retaining Ring
32 06638 Housing
33 06558 Torr Pin, 3/16 in x 7/8 in
34 06543 O-Ring
35 06511 O-Ring
36 06556 Regulator
37 06501 Screw, 6-32 x 3/4 in Set Soc Hex
38 06598 Housing Cover
39 06642 Lever
40 06559 Groove Pin, 1/8 in x 7/8 in Type E
41 06566 Warning Label
42 06557 Muer
43 06552 Throttle Valve Seat
44 06553 Throttle Valve
45 06554 Taper Spring
46 06555 Screen
47 06608 O-Ring, 1/16 in x 5/8 in x 3/4 in
48 06604 Rotatable Exhaust Deector
49 06605 Inlet Bushing
50 30437 Wrench
42 43 44
45
48
46
49
47
50
32
33
34
35
36
37
38
39
40 41
21 22
23
20
7
16
17
18
19
8
9
10
11
12 13
14
15
1
2
34
5
6
24 27
25
26
28
29 30 31
7
USE 3M TL62 THREADLOCKER
TO 20-25 FT -LB
USE 3M TL62 THREADLOCKER
TO 25-30 FT -LB
USE 3M TL62 THREADLOCKER
TO 20-25 FT -LB
USE
3M TL62 THREADLOCKER
TO 15-20 FT -LB
Fig. 3M PN Description
1 30380 Support Handle Ring
2 30381 Screw, 3/8-16
3 06503 Jam Nut
4 06526 Handle
5 28820 Retaining Ring
6 30377 Double Reduction Sander Gear Case
(Includes Figure 7)
7 06523 Grease Fitting (2)
8 30378 Bearing Retainer
9 30367 Ball Bearing (2)
10 30375 Output Spindle
11 30370 Pin (3)
12 30366 Needle Bearing (3)
13 30431 Planet Gear
14 30379 Spacer
15 30390 Ball Bearing
16 30428 Cantilevered Gear Carrier
17 30370 Pin (3)
18 30366 Needle Bearing (3)
19 30431 Planet Gear
20 30429 Gear Case (Includes Figure 7)
21 06609 O-Ring 3/32 in x 1 3/8 in x 1 9/16 in
22 30432 Pinion Gear
23 30427 Wear Plate
24 06506 Ball Bearing 3/8 in x 7/8 in x 9/32 in
25 30433 Front End Plate
Fig. 3M PN Description
26 06640 Rotor
27 06643 Vane, Set of 5
28 06563 Cylinder
29 06560 Rear End Plate
30 06508 Ball Bearing
31 30369 Retaining Ring
32 06638 Housing
33 06558 Torr Pin, 3/16 in x 7/8 in
34 06543 O-Ring
35 06511 O-Ring
36 06556 Regulator
37 06501 Screw, 6-32 x 3/4 in Set Soc Hex
38 06598 Housing Cover
39 06642 Lever
40 06559 Groove Pin, 1/8 in x 7/8 in Type E
41 06566 Warning Label
42 06557 Mufer
43 06552 Throttle Valve Seat
44 06553 Throttle Valve
45 06554 Taper Spring
46 06555 Screen
47 06608 O-Ring, 1/16 in x 5/8 in x 3/4 in
48 06604 Rotatable Exhaust Deector
49 06605 Inlet Bushing
50 30437 Wrench

3 4
Parts Page
PARTS LIST FOR 28339, 3,500 RPM INLINE SANDER (SERIES C)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20 21 22
23
24
25
26
27
28
30
31
32
33
34
35
36
29
Fig. 3M Part No. Description Qty.
1 30380 Support Handle Ring 1
2 30381 Cap Screw 3/8-16 x 7/8 1
3 06503 Jam Nut 1
4 55102 3M Support Handle 1
5 28820 Beveled Ret. Ring 1
6 28986 Gear Case 1
7 30378 Bearing Retainer 1
8 06648 Ball Bearing 17 x 35 x 10 1
9 30375 Super Gear Carrier 2
10 30426 Gear Pin 3
11 30388 Needle Bearing 3
12 30430 Planet Gear 3
13 30427 Wear Plate 1
14 06510 Ball Bearing 3/8 x 7/8 x 9/32 1
15 28990 Front End Plate 1
16 29004 Front Wear Plate 1
17 29236 Rotor 1
18 28979 Vane 5
19 06601 Cylinder 1
Fig. 3M Part No. Description Qty.
20 28981 Rear End Plate 1
21 06508 Ball Bearing 1/4 x 5/8 x .196 1
22 30369 Ring 1
23 06609 O-Ring 1.38 x .094” 1
24 28977 3M Metal Body Housing 1
25 28980 Trigger Valve 1
26 28983 O-ring 1
27 06614 Spring 1
28 06511 O-Ring .375 x .063 1
29 06627 Air Regulator 1
30 06616 Pin 1
31 28978 3M Jacket 1
32 06642 Lever Assembly 1
33 29006 Mufer 1
34 28982 Screen Diffuser 1
35 29007 O-Ring 1
36 28991 Inlet 3/8” NPT 1
37 87126 Label 1
Not Shown 30437 Wrench 13/16 1
Assembly Requirements
Fig Torque Threadlocker
6 25-30 ft-lb 3M TL62
7 15-20 ft-lb 3M TL62
35 20-25 ft-lb 3M TL62

5
Parts Page
PARTS LIST FOR PN 28339, 3,500 RPM INLINE SANDER (SERIES A)
PARTS LIST FORPN 28339, 3,500 RPM INLINE SANDER
34870301586 NA
2014July18
Fig. 3M PN Description Fig. 3M PN Description
1 30380 Support Handle Ring
2 30381 Screw, 3/8-16
3 06503 Jam Nut
4 06526 Handle
5 28820 Retaining Ring
6 30378 Bearing Retainer
7 30367 Ball Bearing (2)
8 30376 Single Reduction Sander Gear Case
(Includes Figure 9)
9 06523 Grease Fitting
10 06609 O-Ring 3/32 in x 1 3/8 x 1 9/16
11 30375 Output Spindle
12 30426 Pin (3)
13 30388 Needle Bearing (3)
14 30430 Planet Gear
15 30427 Wear Plate
16 06506 Ball Bearing 3/8 in x 7/8 in x 9/32 in
17 30433 Front End Plate
18 28635 Rotor
19 06643 Vane, Set of 5
20 06601 Cylinder
21 06560 Rear End Plate
22 06508 Ball Bearing
23 30369 Retaining Ring
24 06638 Housing
25 06558 Torr Pin, 3/16 in x 7/8 in
26 06543 O-Ring
27 06511 O-Ring
28 06556 Regulator
29 06501 Screw, 6-32 x 3/4 in Set Soc Hex
30 06598 Housing Cover
31 06642 Lever
32 06559 Groove Pin, 1/8 in x 7/8 in Type E
33 06566 Warning Label
34 06557 Muer
35 06552 Throttle Valve Seat
36 06553 Throttle Valve
37 06554 Taper Spring
38 06555 Screen
39 06608 O-Ring, 1/16 in x 5/8 in x 3/4 in
40 06604 Rotatable Exhaust Deector
41 06605 Inlet Bushing
42 30437 Wrench
33
34 35 36
39
37
40
38
42
23
24
25
26
27
28
29
30
31
32
1
2
34
5
6
7
13 14
10
11
12
15
18
16
17
19
20
21 22
8
9
41
USE 3M TL62 THREADLOCKER
TO 15-20 FT -LB
USE 3M TL62 THREADLOCKER
TO 25-30 FT -LB
USE 3M TL62 THREADLOCKER
TO 20-25 FT -LB
Fig. 3M PN Description
1 30380 Support Handle Ring
2 30381 Screw, 3/8-16
3 06503 Jam Nut
4 06526 Handle
5 28820 Retaining Ring
6 30378 Bearing Retainer
7 30367 Ball Bearing (2)
8 30376 Single Reduction Sander Gear Case
(Includes Figure 9)
9 06523 Grease Fitting
10 06609 O-Ring 3/32 in x 1 3/8 x 1 9/16
11 30375 Output Spindle
12 30426 Pin (3)
13 30388 Needle Bearing (3)
14 30430 Planet Gear
15 30427 Wear Plate
16 06506 Ball Bearing
3/8 in x 7/8 in x 9/32 in
17 30433 Front End Plate
18 28635 Rotor
19 06643 Vane, Set of 5
20 06601 Cylinder
Fig. 3M PN Description
21 06560 Rear End Plate
22 06508 Ball Bearing
23 30369 Retaining Ring
24 06638 Housing
25 06558 Torr Pin, 3/16 in x 7/8 in
26 06543 O-Ring
27 06511 O-Ring
28 06556 Regulator
29 06501 Screw, 6-32 x 3/4 in Set Soc Hex
30 06598 Housing Cover
31 06642 Lever
32 06559 Groove Pin, 1/8 in x 7/8 in Type E
33 06566 Warning Label
34 06557 Mufer
35 06552 Throttle Valve Seat
36 06553 Throttle Valve
37 06554 Taper Spring
38 06555 Screen
39 06608 O-Ring, 1/16 in x 5/8 in x 3/4 in
40 06604 Rotatable Exhaust Deector
41 06605 Inlet Bushing
42 30437 Wrench

5 6
* Declared noise levels; measurements carried out in accordance with standard EN ISO 15744:2002.
** Declared vibration levels in accordance with EN12096; measurements carried out in accordance with standard EN ISO 8662-8:1997.
†Declared vibration levels in accordance with EN12096; measurements carried out in accordance with standard EN ISO 28927-3:2009.
IMPORTANT NOTE: The noise and vibration values stated in the table are from laboratory testing in conformity with stated codes and standards and are not
sufcient risk evaluation for all exposure scenarios. The actual exposure values and amount of risk or harm experienced to an individual is unique to each
situation and depends upon the surrounding environment, the way in which the individual works, the particular material being worked, work station design, as
well as upon the exposure time and the physical condition of the user. 3M cannot be held responsible for the consequences of using declared values instead of
actual exposure values for any individual risk assessment.
PRIOR TO THE OPERATION
The tool is intended to be operated as a hand held tool. It is always recommended that while using the tool, operators stand on a solid oor, in a secure position
with a rm grip and footing. Be aware that the sander can develop a torque reaction. See the section “SAFETY PRECAUTIONS”.
Use a clean lubricated air supply that will give a measured air pressure at the tool of 6.2 bar (90 psig) when the tool is running with the lever fully depressed. It is
recommended to use an approved 10 mm (3/8 in) x 8 m (25 ft) maximum length airline or a 12.7 mm (1/2 in x 8 m (25 ft) maximum length airline). Connect the
tool to the air supply as shown in Figure 1. Do not connect the tool to the airline system without an easily accessible air shut off valve. It is strongly recommended
that an air lter, regulator and lubricator (FRL) be used as shown in Figure 1 as this will supply clean, lubricated air at the correct pressure to the tool. In any case
appropriate air pressure regulators shall be used at all times while operating this tool where the supply pressure exceeds the marked maximum of the tool. Details
of such equipment can be obtained for your tool distributor. If such equipment is not used, the tool should be manually lubricated. To manually lubricate the tool,
disconnect the airline and put 2 to 3 drops of suitable pneumatic motor lubricating oil such as 3M™ Air Tool Lubricant PN 20451 (or equivalent 10 centistoke
oil) into the air inlet of the tool. Reconnect tool to the air supply and run tool slowly for a few seconds to allow air to circulate the oil. If the tool is used frequently,
lubricate it on a daily basis or lubricate it if the tool starts to slow or lose power. It is recommended that the air pressure at the tool be 6.2 bar (90 psig) while the
tool is running so the maximum RPM is not exceeded. The tool can be run at lower pressures but should never be run higher than 6.2 bar (90 psig). If run at lower
pressure the performance of the tool is reduced.
Product Conguration / Specications
Operating / Maintenance Instructions
Recommended Airline
Size - Minimum
10 mm 3/8 in
Recommended Maximum Hose Length
8 meters 25 feet
Air Pressure
Maximum Working Pressure 6.2 bar 90 psig
Recommended Minimum N/A N/A
Lubricate the angle head every 6-8 working hours with premium grease with the following properties:
- High and low temperature performance
- Shear stable
- Anti-wear protection
- Low viscosity base uid for high speed application
- Very low coefcient of friction
Fuchs Renolit AX S2 or equal is recommended. Grease gun and grease available from your grease supplier.
Model
Number
Spindle Tool
Speed
(RPM)
Product
Net Wt. kg
(lb)
Height
mm (in)
Length
mm (in)
*Noise Level
dBA Pressure
(Power)
**Vibration
Level m/s2
(ft/s2)
**Uncertainty
K m/s2(ft/s2)
Series
Designation
28338 5/8-11
threads/in 1,600 1.51 (3.32) 85.72 (3.375)
250.82
(9.875) 82.9 (94.5 ) < 2.5 (<8.20) NA A
28339 5/8-11
threads/in 3,500 1.20 (2.64) 85.72 (3.375) 215.9 (8.50) 84.9 (96.5 ) < 2.5 (<8.20) NA A
Model
Number
Spindle Tool
Speed
(RPM)
Product
Net Wt. kg
(lb)
Height
mm (in)
Length
mm (in)
*Noise Level
dBA Pressure
(Power)
†Vibration
Level m/s2
(ft/s2)
†Uncertainty
K m/s2(ft/s2)
Series
Designation
28339 5/8-11
threads/in 3,500 1.5 (3.3) 70 (2.75) 200 (8) 90.2 (101.8) 5.71 (18.7) 1.3 (4.3) C

7
3M™ Inline Sander accessories are designed for use on 3M Inline Sanders.
Constructed from premium, industrial-quality materials, their durability and
precise construction are the ideal complement to the performance of the 3M
Inline Sander. See Product Conguration/Specications table for mounting
information for a particular model.
1. Read all instructions before using this tool. All operators must be fully
trained in its use and aware of these safety rules.
2. The tool RPM should be checked on a regular basis to ensure proper
operating speed. This check should be done by inserting a touch-type
tachometer into the spindle of the tool without an abrasive product mounted.
3. Make sure the tool is disconnected from the air supply. Select suitable
abrasive, mounting hardware and accessories and secure them to the
spindle. Be careful to center the abrasive & mounting hardware.
4. Always wear required safety equipment when using this tool.
5. Always remove the air supply to the sander before tting, adjusting or
removing the abrasive & mounting hardware.
6. Always adopt a rm footing and grip and be aware of torque reaction
developed by the sander.
7. Use only 3M approved spare parts.
8. Always ensure the material being worked is rmly xed to avoid movement.
9. Check hose and ttings regularly for wear. Do not carry the tool by its hose;
always be careful to prevent the tool from being started when carrying the
tool with the air supply connected.
10. Dust is highly combustible.
11. If tool is serviced or rebuilt check to ensure that the maximum tool RPM is
not exceeded and that there is no excessive tool vibration.
12. Do not exceed maximum recommended air pressure. Use safety equipment
as recommended.
13. Prior to installing any abrasive, wheel or mounting hardware, always check
that their marked maximum operating speed is equal or higher than the
rated speed of this tool.
14. The tool is not electrically insulated. Do not use where there is a possibility
of contact with live electricity, gas pipes, and/or water pipes.
15. This tool is not protected against hazards inherent in grinding and cutting
operations, which require a guard, and no such grinding and cutting
products should ever be attached.
16. Take care to avoid entanglement with the moving parts of the tool with
clothing, ties, hair, cleaning rags or loose hanging objects. If entangled, stop
air supply immediately to avoid contact with moving tool parts.
17. Keep hands clear of the spinning abrasive & mounting hardware or spindle
during use.
18. If the tool appears to malfunction, remove from use immediately and
arrange for service and repair.
19. Immediately release the start handle in the event of any disruption of
pressure; do not attempt to restart until the disruption has been corrected.
20. Do not allow the tool to free spin without taking precautions to protect
any persons or objects from debris from rupturing abrasive & mounting
hardware.
21. When tool is not in use, store in a clean dry environment free of debris.
22. Recycle or dispose of tool according to Local, State, and Federal regulations.
23. Whipping hoses can cause severe injury.
24. Whenever universal twist couplings (claw couplings) are used, lock pins
shall be installed and whip check safety cables shall be used to safe
guard against the possible hose-to-tool connection failure.
Safety Precautions 3M™ Inline Sander Accessories
3M Inline Sander: Instructions for Mounting
and Dismounting Hardware
1. Disconnect air line from tool.
2. If already mounted, remove spindle mounted accessories and/or
abrasive product by using the wrenches supplied with the tool. Use the
wrenches to hold the tool spindle while turning the spindle extension
and/or mounting hardware counter clockwise.
3. Fully thread new spindle mounted accessories and/or abrasive product
onto the spindle in a clockwise rotation.
4. Secure all spindle mounted accessories and/or abrasive product with the
wrenches and tighten the spindle nut securely. Always use the correct
sized spindle accessories with the matching thread pitch and diameter.
An inadequately secured accessories and/or abrasive product could
loosen, bend or break causing damage to the tool and work piece and
possible injury to the operator or bystanders.
5. After the spindle accessories and/or abrasive product have been
mounted, inspect them to ensure they are free of debris and
undamaged.
6. Re-connect air line, position tool in a safe location, and test for any
unusual noise or vibration which may be caused by damaged or
improperly mounted accessory and/or abrasive product.
Note: During the above steps, ensure that all hardware and abrasive
products are mounted concentrically on the supporting accessory.
Accessory Description Part
Number
3M™ Rubber Slotted Expander Wheel, 5 in x 3 ½ in x 5/8
Arbor Hole (for 3 ½ in x 15 ½ in belts) 28348
3M™ Rubber Slotted Expander Wheel, 3.4 in x 3 in x 5/8
Arbor Hole (for 3 in x 10 11/16 in belts) 28349
3M™ Wheel Adaptor Kit #3, 5/8-11 External 45038
See 3M ASD Accessory catalogs 61-5002-8098-9 and 61-5002-8097-1 for
additional Accessories.
Spindle Nut
Properly Sized Abrasive Belt
3/8 in Spacers
3/8 in Spacer
Rubber Slotted
Expander Wheel
3.4 in x 3 in
Rubber Slotted
Expander Wheel
5 in x 3 1/2 in
Figure 1
Closed Loop Pipe System
Sloped in the direction of air flow
Drain Leg
Ball Valve
To Tool Station
Filter
Drain Valve
Regulator
Lubricator
Ball
Valve
Ball Valve Air Flow
Air Dryer
Air Compressor
and Tank
Air Hose
To Coupler
at or near Tool

7 8
Product Use: All statements, technical information and recommendations
contained in this document are based up on tests 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
t for a particular purpose and suitable for the user’s method of application.
Warranty and Limited Remedy: 3M warrants this tool against defects
in workmanship and materials under normal operating conditions for one
(1) year from the date of purchase. 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. User is responsible for determining whether
the 3M tool is t for a particular purpose and suitable for user’s application.
User must operate the tool in accordance with all applicable operating
instructions, safety precautions, and other procedures stated in the operating
manual to be entitled to warranty coverage. 3M shall have no obligation to
repair or replace any tool or part that fails due to normal wear, inadequate
3
Abrasive Systems Division
3M Center
St. Paul, MN 55144-1000
www.3M.com/abrasives
© 3M 2016.
3M is a trademark of 3M Company.
34-8703-0158-6
or improper maintenance, inadequate cleaning, nonlubrication, improper
operating environment, improper utilities, operator error or misuse, alteration
or modication, mishandling, lack of reasonable care, or due to any
accidental cause. If a tool or any part thereof is defective within this warranty
period, your exclusive remedy and 3M’s sole obligation will be, at 3M’s
option, to repair or replace the tool or refund the purchase price.
Limitation of Liability: Except where prohibited by law, 3M 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.
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 in a safe place. This must be submitted when ling
a warranty claim, within 1 year from the date of purchase. For additional
assistance call 1-800-362-3550.
Product Repair after Warranty Has Expired: Repair of 3M Abrasive Power
tools that are not under warranty is available through 3M or a 3M Authorized
Tool Repair Representative. Contact your 3M Abrasive Power Tool Distributor
for details, or call 1-800-362-3550.
For 3M Product Information Call:
800-3M HELPS (800-364-3577) toll free
651-737-6501 direct dial