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First and foremost, an user manual of 3M 3125 should contain:
- informations concerning technical data of 3M 3125
- name of the manufacturer and a year of construction of the 3M 3125 item
- rules of operation, control and maintenance of the 3M 3125 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of 3M 3125 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of 3M 3125, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the 3M service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of 3M 3125.
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It is mostly in the manuals where we will find the details concerning construction and possibility of the 3M 3125 item, and its use of respective accessory, as well as information concerning all the functions and facilities.
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Table of contents for the manual
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Page 1
3 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[...]
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Page 2
HOW TO HANDLE • This tool is designed for repairing paint ed 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 connecti ng part to reduce contami n[...]
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Page 3
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 loos ened by vibration. - Attach buffing material or paper by pressing it uniformly with the palm of [...]
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c. Spare Parts information 4[...]
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c. Spare Parts information - continued PARTS No. CODE ITEM QTY. 3 S3305 Spring 1 4 S3322 Air Regulator 1 5 S3323 O-Ring (P-7) 1 6 P101 O-Ring (P-10A) 1 8 S3401 Throttle Lever 1 9 S3402 Roll Pin 1 10 696ZZ Bearing (696ZZ ) 1 11 S3326 Rear End Plate 1 12 S3411 Roll Pin 2 13 S3333 Rotor Collar 1 14 60743 Cylinder 1 15 S3329 Rotor 1 16 S3212 Rotor Blad[...]
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Page 6
d. Disassembly method Disconnect air hose first. Disasse mbling the tool without disconnecting air hose is very dangerous. 1. Remove the skirt - Remove four screws (43) from skirt (42) Hook-it side. - Remove the screw (40) from the skirt clamp (39) and remove the skirt band. - Remove the skirt (42). 2. Remove pad holder. - Remove the thrust screw ([...]
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Page 7
4. Remove parts from housing - Place housing (60) in a vise and rotate c up (21) counterclockwise and remove the angle housing assembly (22-32). - Rotate the cup lock (20) counterclockwise and remove it. 5. Remove motor - Remove motor assembly (10-19). - Drive out rear bearing (11) using special tool and a hammer. - Remove rear end plate. Drive ou [...]
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Page 8
6. Disassemble the angle housing - Clamp the angle housing assembly (22-32 ) in a vise. Rotate clamp nut (28) clockwise and remove. - Remove EX shaft assembly (32, 23-26) and remove cup (21). - Use gear puller to remove gear (24) in the EX shaft assembly (32, 23-26) and remove gear. - Remove the half-moon key. Use gear puller on bearing (25) and re[...]
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Page 9
8. Valve disassembly - Remove plug (62). Remove regul ator (4) and o-ring (5). R emove o-ring (6) from valve plug (62). Remove valv e assembly (3,2,30). - Remove spring (3) and 0-ring (30) from valve assembly. - Remove throttle valve (61). 9. Special tools for the repair operation ( to help the disassembly) 1) 2) 3) 4) 5) 6) 7) 8) 9) From top left [...]
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Page 10
e. Guideline for parts exchange Parts no. Figure no. (ID number) Part name Qty Guideline for parts exchange 3 3305 Spring 1 When bent or damaged, or when it doesn’t work properly 4 3322 Air regulator 1 5 3323 O ring (p-7) 2 When damaged 6 3501 O ring (P-10A) 1 When damaged 8 3401 Throttle lever 1 When deep wear marks occur in the part that contac[...]
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Page 11
Parts no. Figure no. (ID number) Part name Qty Guideline for p arts exchange 38 150406 Tras bis (M4 x 6) 1 39 60736 Skirt band 1 When the de formed or damage is found. 40-1 110310 Screw (M3 x 10) (1) 40-2 2103 Nut (M3) (1) 41 Cap 1 42 60733 Skirt 1 When cut or cracked or worn-out. 43 130305 Screw (M3 x 5) 4 44 60735 φ 30 x 4t pad 1 When surface fl[...]
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Page 12
Trouble shooting Chart No run No sound Regulator problem or constricted airline Check Reg ulator Sound Air motor rotates (manually) Vane stuck because of dirt or oil If it won't rotate m anually, service is require d Won't rotate Motor is locked up, because of dirt It is required o verhaul Rotates Rotates without Valve is dirty Press leve[...]