User manual 3M SR RADIAL BRISTLE DISC

[. . . ] 3 Surface Conditioning Products Technical Service Bulletin 3M SR Radial Bristle Disc TM 3M Abrasive Systems 3M Center, Building 223-6N-01 St. Paul, MN 55144-1000 © 2001 61-5002-8012-0 Product: 3MTM SR Radial Bristle Discs, 2" and 3" diameter, are plastic particle filled bristle products. [. . . ] · Install multiple discs with hubs interlocking and embossed arrows in direction of tool rotation onto mandrel. Any visible residues may be removed with a solvent, such as isopropyl alcohol, and wipe. Product Availability: Disc Converted Forms: 2" and 3" radial bristle discs with 3/8" center hole. Mounting Procedure: Brush Assembly Detail: A 990 Mandrel with four 3M SR radial bristle discs. · Note directional arrows are molded into product. Mandrels for the 2" and 3" SR Radial Bristle Discs: UPC# 048011-14915-8 1 Roloc + Holder 1 (2 to 4 discs*) 1 Roloc + Button 7 UPC# 048011-15012-3 3MTM Mandrel No. 990 (2 to 3 discs*, silver button) (4 to 6 discs*, black button) UPC# 048011-16847-0 3MTM Mandrel No. 991 (5 to 8 discs*, silver button) (8 to 12 discs*, black button) *Discs must be interlocked together Tools: Straight shaft or right angle pneumatic grinders such as, but not limited to, the following: Make and Model ARO 7871-F ARO 8479-1 Dynabrade 52666 Dynabrade 50000 Ingersoll-Rand TD120RG4 Ingersoll-Rand CA120RG4 Dotco 12L2562-01 Dotco 12L1200-36 Straight Shaft or Right Angle Straight Shaft Right Angle Straight Shaft Right Angle Straight Shaft Right Angle Straight Shaft Right Angle RPM 12, 000 12, 000 12, 000 12, 000 12, 000 12, 000 12, 000 12, 000 M. O. S. : Maximum Operating Speed (Free Spin): 20, 000 RPM for 2" discs. 20, 000 RPM for 3" discs. Recommended Operating Speeds : 10, 000-12, 000 RPM rated pneumatic tools are recommended. These speeds provide high cut and limit product wear and potential bristle loss due to bristle fatigue. Slower speeds to prevent bristle loss are recommended where significant bristle flexing occurs, such as cleaning around fasteners and down into channels. General Applications: Aerospace · Sealant removal from access/inspection panel faying surfaces. · Polysulfide removal from aircraft cargo doors · Sealant cleaning from fasteners prior to removal · Smoothing sealant beads between adjacent skin panels (aerodynamic smoothing sealant) · Sealant removal from window sealing surfaces on fuselage (WARNING: Do not use directly on acrylic window surfaces as windows may be damaged. ) General · Removal of gasket adhesive from painted door enclosures 1 Removal of sealant @ 12, 000 RPM Test Results Peel Tests A test protocol similar to the peel tests in MIL-PRF-81733D was used to investigate possible adverse effects of SR Radial Bristle Discs on sealant adhesion after disc use. Samples were coated with sealant, which was then removed with SR Radial Bristle Discs, followed by isopropyl alcohol wipe. Samples showed no adhesive failures at sealant/coating interface; all showed cohesive failure within sealant. [. . . ] Before using, user shall determine the suitability of the product for his own intended use and user assumes all risks and liability whatsoever in connection therewith. No statement or recommendation not contained herein shall have any force or effect unless in an agreement signed by officers of seller and manufacturer. MCS 202188 [. . . ]