TO 1-1-700 - Robins Air Force Base

More documents

Recommendations

Info

TO 1-1-700 of 20 to 25 seconds in a No. 2 Zahn cup (reference TO 1-1-8) with a 20% to 30% by volume addition of a 50% by volume mixture of MEK conforming to ASTM D 740 and Toluene conforming to A-A-59107 and stirring for 2 minutes with an air driven agitator at 70 rpm. 12.6 SEALANT APPLICATION PROCEDURES. SAE AMS 3166, SOLVENT, WIPING 71 A-A59281, SOLVENT, CLEANING 72 MIL-A-46106, ADHESIVE/SEALANT, SILICONE RTV, CORROSIVE 18 MIL-A-46146, ADHESIVE/SEALANT, SILICONE RTV, NON-CORROSIVE, GROUP I/II/III, TYPE I OR GROUP I, TYPE II 19 SAE AMS-3276 (MIL-S-83430), SEALING COMPOUND, INTEGRAL FUEL TANK 59 When cleaning an area prior to applying a sealant, apply a small amount of solvent to a clean cloth, wipe the surface, and follow by wiping with a clean, dry cloth. Immediately after use, place used rags into an appropriate HAZMAT container, and then dispose of per local directives. This minimizes exposure of personnel to and release of solvent vapors into the environment. • No RTV sealant which produces acetic acid such as those conforming to MIL-A-46106 shall be used on Air Force equipment unless required by the equipment specific repair manual. No RTV sealant shall be used in areas where exposure to fuels and oils will be encountered. If RTV sealants are required by the equipment specific repair manual, ensure that the sealant conforms to MIL-A-46146, Adhesives/Sealants, Silicone, RTV, Non-corrosive (for use on sensitive metals and equipment), and/or is listed in TO 1-1-691, Appendix A, as being a non-corrosive RTV silicone sealant. • Do not use SAE AMS 3267 (MIL-S-8784) sealant in high temperature areas or for permanent structural installations. These sealants have no high temperature resistance and very low peel strength. Some typical uses of SAE AMS 3267 (MIL-S- 8784) sealants include sealing floor panels and plates and fuel tank inspection plates. 12.6.1 Cleaning. If the surfaces have been contaminated following corrosion removal and surface treatment per instructions in Chapters 8 and 11 of this manual; clean the area with a clean CCC-C-440, Type I or II, Class 2 cheesecloth; an AMS 3819A, Class 2, Grade A cleaning cloth; or a CCC-C-46, Type I, Grade 7 non-woven cleaning cloth saturated with either A-A-59281, Type I or SAE AMS 3166 solvent. Begin at the top of the area to be sealed and work downward. Dry the surfaces immediately with a clean cloth. Do not allow solvent to evaporate from the surface because it will allow some or all of the oil, dirt, etc. to redeposit, making it impossible to remove with a dry cloth. Use a stiff bristle brush to clean around bolts, rivets, etc. Always use clean cloth as each new area is cleaned. NOTE • Always pour solvent on the cloth to avoid contaminating the solvent supply. Reclaimed solvents or soiled cleaning cloths shall not be used. After surface treatment, do not contaminate areas to be sealed with soiled hands or tools. • See Appendixes A and B in TO 1-1-691 for procurement information on materials used for cleaning and masking. 12.6.2 Masking. To prevent sealant from contacting adjacent areas during application and smoothing out operations, the surrounding area not being sealed can be masked off with AMS-T-21595, Type I masking tape (see Figure 12-8). In cases where the tape is likely to remain in place for more than 12-26
TO 1-1-700 2 days on items exposed to direct sunlight and where tape residue on the surface cannot be tolerated, use AMS-T-22085, Type II (3M Co. part No. 481 or 225) preservation and sealing tape. Masking tape is very useful during fillet sealing of exterior surface lap and butt seams. 12.6.3 Adhesion Promoters. In some cases, it may be necessary to improve the adhesion of sealants by the use of adhesion promoters. Adhesion promoters are solvents that contain additives which leave a residue on the surface after solvent evaporation to promote adhesion. To apply, clean the area per paragraph 12.6.1, brush or wipe the surface to be sealed with the liquid solution, and allow the treated surface to dry by evaporation without touching the treated areas for 30 minutes to an hour before applying sealant. If a polythioether sealant is to be applied over a polysulfide sealant, part No. PR-186 is recommended for use at the sealant interface. If the surface becomes contaminated or sealant is not applied within 2 hours after applying an adhesion promoter, reclean the area and reapply the adhesion promoter per the above instructions. Refer to TO 1-1-691 Appendix A for information relative to purchasing/ordering these adhesion promoters. b. Apply sealant between the pieces of tape. (1) Thick sealants may be applied with a non-metallic spatula or spreader to fillet seal lap seams or flush fill butt seams as shown in Figure 12-8. Avoid the entrapment of air. Work sealant into recesses by sliding the edge of the spatula firmly back over recesses. Smoothing will be easier if the non-metallic spatula is first dipped in water. (2) Brushable sealants are applied with a brush and smoothed until the desired thickness is reached. 12.6.4 Brush Spatula or Caulking Gun Application. Prior to masking and sealing, prepare and clean the surface in accordance with paragraph 12.6.1. TT-N-95, NAPHTHA, ALIPHATIC 66 Do not contaminate areas to be sealed with hands, tools, etc. after surface treatment and primer application. a. To prevent sealant from contacting adjacent areas during application and smooth out, outline the areas being sealed with masking tape (AMS-T-21595, Type I) so that each tape strip is 1/16 inch to 1/8 inch from the edge of butt seams and the upper surface edge of a lap seam and 1/4 inch to 3/8 inch from the lower surface edge of a lap seam. If tape residue on these surfaces is excessive, remove adhesive residues using TT-N-95 Aliphatic Naphtha. Masking may be very beneficial during fillet sealing of exterior surface lap seams and filling exterior surface butt seams. Figure 12-8. Non-Metallic Spatula (3) Thick sealants may be applied with a caulking gun, and if done carefully, will not usually require masking. This method is especially adaptable to filling seams or the application of form-in-place gaskets. On exterior surfaces where smoothness is required, masking is necessary to allow smoothing the sealant after application without smearing it onto surrounding surfaces. c. Remove masking tape after the sealant has been applied and before it begins to set. Cure time depends on the application life of the sealant materials used, the temperature, and the RH. When sealant no longer feels tacky, prime and topcoat as necessary and required by system specific technical data per application instructions in TO 1-1-8. 12-27
Page 1 and 2:
TO 1-1-700 TECHNICAL MANUAL CORROSI
Page 3 and 4:
TO 1-1-700 TABLE OF CONTENTS Chapte
Page 5 and 6:
TO 1-1-700 TABLE OF CONTENTS - CONT
Page 7 and 8:
Page 9 and 10:
Page 11 and 12:
Page 13 and 14:
TO 1-1-700 LIST OF ILLUSTRATIONS -
Page 15 and 16:
TO 1-1-700 FOREWORD 1. PURPOSE. The
Page 17 and 18:
TO 1-1-700 List of Related Publicat
Page 19 and 20:
TO 1-1-700 SAFETY SUMMARY 1. GENERA
Page 21 and 22:
TO 1-1-700 AMS-G-6032, GREASE, PLUG
Page 23 and 24:
TO 1-1-700 MIL-DTL-64159, COATING,
Page 25 and 26:
TO 1-1-700 MIL-PRF-27617, GREASE, A
Page 27 and 28:
TO 1-1-700 O-L-164, DRESSING, LEATH
Page 29:
TO 1-1-700 MIL-T-81772, THINNER, PO
Page 32 and 33:
TO 1-1-700 tronics equipment and th
Page 34 and 35:
TO 1-1-700 cleaning situation, syst
Page 36 and 37:
TO 1-1-700 c. Riveted joints shall
Page 38 and 39:
TO 1-1-700 c. Remove and replace an
Page 40 and 41:
TO 1-1-700 MIL-L-87177, LUBRICANT,
Page 42 and 43:
TO 1-1-700 Figure 3-1. Simplified C
Page 44 and 45:
TO 1-1-700 resistant, and also at t
Page 46 and 47:
TO 1-1-700 is first noticeable as a
Page 48 and 49:
TO 1-1-700 3.7.8 Oxygen Concentrati
Page 50 and 51:
TO 1-1-700 Figure 3-14. Concentrati
Page 52 and 53:
TO 1-1-700 Figure 3-17. Galvanic Se
Page 54 and 55:
TO 1-1-700 Figure 3-20. Aluminum Su
Page 56 and 57:
TO 1-1-700 3.8.7 CRES/Stainless Ste
Page 58 and 59:
TO 1-1-700 3.9.10 Climate. Warm, mo
Page 60 and 61:
TO 1-1-700 3.11 PREVENTATIVE MAINTE
Page 63 and 64:
TO 1-1-700 CHAPTER 4 COMPOSITE AND
Page 65 and 66:
TO 1-1-700 4.4.4.4 Glass parts shal
Page 67 and 68:
TO 1-1-700 CHAPTER 5 PACKAGING (STO
Page 69 and 70:
TO 1-1-700 extent of damage dependi
Page 71 and 72:
TO 1-1-700 5.15 PRECAUTIONS FOR VCI
Page 73 and 74:
TO 1-1-700 c. Secure the desiccant
Page 75 and 76:
TO 1-1-700 Figure 5-8. Shock Isolat
Page 77 and 78:
TO 1-1-700 Figure 5-9. Examples of
Page 79 and 80:
TO 1-1-700 5.24.10 Rigid or Flexibl
Page 81 and 82:
TO 1-1-700 CHAPTER 6 MOISTURE AND F
Page 83 and 84:
TO 1-1-700 c. 6.2.6 Felt. Examine f
Page 85 and 86:
TO 1-1-700 a. After first directing
Page 87:
TO 1-1-700 6.4.5.14 Terminals, scre
Page 90 and 91:
TO 1-1-700 NOTE • Authorized clea
Page 92 and 93:
TO 1-1-700 Table 7-1. Cleaning of S
Page 94 and 95:
Page 96 and 97:
Page 98 and 99:
Page 100 and 101:
Page 102 and 103:
TO 1-1-700 7.3.1.2.3 Portable, 45 g
Page 104 and 105:
TO 1-1-700 Table 7-2. Common Milita
Page 106 and 107:
TO 1-1-700 inactivity, storage, or
Page 108 and 109:
TO 1-1-700 7.5.6.5.1 Grade 1 - A th
Page 110 and 111:
TO 1-1-700 Table 7-4. Corrosion Pre
Page 112 and 113:
TO 1-1-700 Table 7-5. Preservation
Page 114 and 115:
TO 1-1-700 either case, MIL-PRF-269
Page 116 and 117:
TO 1-1-700 MIL-PRF-85285, COATING,
Page 118 and 119:
TO 1-1-700 c. Cadmium plated surfac
Page 120 and 121:
TO 1-1-700 a. Scuff sand and feathe
Page 122 and 123:
TO 1-1-700 7.7.7.2 If surface is no
Page 124 and 125:
TO 1-1-700 7.7.9.2 Where only parti
Page 126 and 127:
TO 1-1-700 7.8.1 Type I Application
Page 128 and 129:
TO 1-1-700 Extend (Loctite) 32150 J
Page 130 and 131:
TO 1-1-700 There are three ways to
Page 132 and 133:
TO 1-1-700 vulnerable surfaces clea
Page 134 and 135:
TO 1-1-700 Table 8-2. Materials, Th
Page 136 and 137:
TO 1-1-700 Table 8-4. Electronic Cl
Page 138 and 139:
Page 140 and 141:
Page 142 and 143:
Page 144 and 145:
Page 146 and 147:
Page 148 and 149:
Page 150 and 151:
TO 1-1-700 Table 8-5. Accessories o
Page 152 and 153:
TO 1-1-700 Table 8-5. Accessories o
Page 154 and 155:
TO 1-1-700 f. Devices with permanen
Page 156 and 157:
TO 1-1-700 Table 8-7. Cleaning and
Page 158 and 159:
TO 1-1-700 MIL-PRF-87937, CLEANING
Page 160 and 161:
TO 1-1-700 of contamination). Maint
Page 162 and 163:
TO 1-1-700 8.8.2 Protective Coating
Page 164 and 165:
TO 1-1-700 • Tube clamps. • Min
Page 166 and 167:
TO 1-1-700 a. For bonding/grounding
Page 168 and 169:
TO 1-1-700 vertently destroy the mo
Page 170 and 171:
TO 1-1-700 doors, and other corrosi
Page 173 and 174:
TO 1-1-700 CHAPTER 10 CORROSION PRO
Page 175 and 176:
TO 1-1-700 MIL-PRF-81733, SEALING A
Page 177 and 178:
TO 1-1-700 d. After corrosion is re
Page 179 and 180:
TO 1-1-700 (3) Stainless/CRES steel
Page 181 and 182:
TO 1-1-700 10.9 WATER ENTRAPMENT AR
Page 183 and 184:
TO 1-1-700 f. Shield equipment from
Page 185 and 186:
TO 1-1-700 b. Use e-inch rivnuts of
Page 187 and 188: TO 1-1-700 10.17.3 If the plating s
Page 189: TO 1-1-700 Figure 10-16. Dissipatio
Page 192 and 193: TO 1-1-700 (2) If allowable damage
Page 194 and 195: TO 1-1-700 Table 11-1. Recommended
Page 196 and 197: TO 1-1-700 11.6 3M CO. SCOTCH-BRITE
Page 198 and 199: TO 1-1-700 11.11.2 Control of Mecha
Page 200 and 201: TO 1-1-700 11.12.2 Mechanical Damag
Page 202 and 203: TO 1-1-700 MIL-DTL-81706 (ALODINE),
Page 204 and 205: TO 1-1-700 11.13.2.3 Application of
Page 206 and 207: TO 1-1-700 only when there is no da
Page 208 and 209: TO 1-1-700 NOTE SEMCO PASA-JELL 101
Page 210 and 211: TO 1-1-700 (CRES), lead, ceramic, g
Page 212 and 213: TO 1-1-700 11.13.7.2 Treatment of C
Page 214 and 215: TO 1-1-700 MIL-A-46106, ADHESIVE/SE
Page 216 and 217: TO 1-1-700 Table 12-1. Sealing Comp
Page 224 and 225: TO 1-1-700 used to apply sealants i
Page 226 and 227: TO 1-1-700 Figure 12-2. Sealant App
Page 228 and 229: TO 1-1-700 Figure 12-4. Rivet Appli
Page 230 and 231: TO 1-1-700 Figure 12-6. Sealant Inj
Page 232 and 233: TO 1-1-700 below and adhere very po
Page 234 and 235: TO 1-1-700 Table 12-2. Time Require
Page 236 and 237: TO 1-1-700 Table 12-2. Time Require
Page 240 and 241: TO 1-1-700 d. Remove all uncured se
Page 242 and 243: TO 1-1-700 MIL-PRF-81733, SEALING A
Page 244 and 245: TO 1-1-700 MIL-PRF-81733, SEALING A
Page 246 and 247: TO 1-1-700 Figure 12-12. Typical Me
Page 248 and 249: TO 1-1-700 may be used for low temp
Page 250 and 251: TO 1-1-700 Figure 12-14. Sealing Pr
show all

TO 1-1-700 - Robins Air Force Base

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?