TO 1-1-700 - Robins Air Force Base

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TO 1-1-700 Table 11-1. Recommended Powered Abrasives for Corrosion Removal - Continued Alloy Flap Brush, Abrasive Wheels (1) Abrasive Cloth/ Paper (2) Abrasive Blasting Parameters Media (3) Pressure (PSI) Other Tools Powered abrasive operations on titanium alloys can generate severe sparking. Keep area clear of all ignitable substances when performing powered abrasive operations on titanium alloys. Titanium alloys Aluminum oxide or silicon carbide Aluminum oxide or silicon carbide Glass beads (Sizes 10- 13) or (AGB-15, 12, 9, or 6); Aluminum oxide (Type I, Grade A or B) 40-50 (4) 40-50 (4) None Plated and phosphated surfaces DO NOT USE POWERED ABRASIVE METHODS DUE TO TOXICITY OF RESIDUE/PAR- TICLES GIVEN OFF FROM MANY TYPES OF PLATING AND PROBABLE SEVERE DAM- AGE TO VERY THIN PLATING FILMS. (1) This includes Roloc type discs and inline and radial type Bristle Discs. (2) This includes Roloc type discs. (3) Media specs: glass beads: SAE AMS 2431/6; Al. oxide: A-A-59316; Steel Shot: SAE J827; Steel Grit: SAE J1993. (4) Indicated pressure is for direct pressure equipment. For suction/venturi equipment, use 50% higher pressure. (5) Use only on heavily corroded parts prior to acid pickling and/or passivation. Table 11-2. Recommended Non-Powered Abrasives for Corrosion Removal Alloy Non-woven Abrasive Abrasive Cloth/ Paper Metallic Wool Brushes Others Aluminum alloys Abrasive Mat Aluminum oxide, Silicon carbide Aluminum wool Stainless steel, Aluminum Pumice paste, Carbide-tipped scrapers Magnesium alloys Abrasive Mat Aluminum oxide, Silicon carbide None Stainless steel, Aluminum Pumice paste, Carbide-tipped scrapers Ferrous metals (other than stainless steel) Abrasive Mat Aluminum oxide, Silicon carbide Steel wool Carbon steel, Stainless steel Carbide-tipped scrapers Stainless steel and Nickel alloys None Aluminum oxide, Silicon carbide Stainless steel wool Stainless steel, Aluminum None Copper alloys None Aluminum oxide (400 grit), Silicon carbide (400 grit) Copper wool Brass None 11-4
TO 1-1-700 Table 11-2. Recommended Non-Powered Abrasives for Corrosion Removal - Continued Alloy Non-woven Abrasive Abrasive Cloth/ Paper Metallic Wool Brushes Others Titanium alloys Abrasive Mat Aluminum oxide, Silicon carbide Stainless steel wool Stainless steel, Aluminum Pumice paste, Carbide-tipped scrapers Cadmium or Zinc plated surfaces Abrasive Mat Aluminum oxide, Silicon carbide None None None Chromium, Nickel, Tin, or copper plated surfaces Abrasive Mat Aluminum oxide, Silicon carbide None Stainless steel, Aluminum None Phosphate surfaces USE METHOD RECOMMENDED FOR BASE METAL • Power tool operations can often generate toxic airborne particles containing heavy metals, such as chromium (in the form of chromates), titanium, nickel, and beryllium, depending on the surface being treated. Eye protection, ventilation, and an adequate respirator for dust control are required. • Do not use hands to probe for air leaks in power tools and their hoses as injury may result. • Before using any powered equipment, remove any clothing such as ties and shirts with long loose sleeves as well as all rings and other jewelry which might become entangled in the equipment. Always wear proper personal protective equipment (PPE), such as goggles, face-shields, respirators, etc. • Ensure that all electrical equipment is grounded. Corrosion removal with power tools is a very aggressive method which shall only be used when and where the extent of corrosion makes non-powered corrosion removal impractical. The indiscriminate use of power tools for corrosion removal can result in damage to protective surface finishes. 11.5.1 Pneumatic Drill Motors. Pneumatic drill motors are the preferred power tools for removing heavy corrosion or reworking large surface areas. The drill motor is normally used with wire brush wheels, rotary files, flap brushes, sanding pads, abrasive wheels, or buffing wheels. These drills are available in many shapes and sizes to satisfy almost any requirement. Check all pneumatic equipment air hoses for breaks or bulges in the coverings. 11.5.1.1 Maximum chuck capacity of portable powered drills is usually 1/4 inch. Insert the tool shank into the drill and tighten chuck securely with the chuck key prior to use. When it is difficult or impossible to reach the work area with a straight drill, a flexible shaft or angle adapter can be used. The flexible shaft permits working around obstructions with a minimum of effort. 11.5.1.2 To prevent the rotary file, abrasive wheel, flap brush, or sanding disc from digging into the metal, keep the tool off the metal when initially starting the drill motor. When the abrading stroke is finished, lift the tool from the metal before releasing the power to the motor. 11.5.1.3 Holding the drill motor with both hands, apply moderate pressure while holding the rotary file, sanding disc, flap brush, or abrasive wheel against the work surface. When using the pneumatic tool as a sander, be sure to check the size and type of the abrasive disc. Ensure that the type of disc is compatible with the metal. Keep the sanding disc tilted to approximately a 10 degree angle so that only one side of the disc is in contact with the metal surface. If the entire disc surface is in contact with the surface, a “bucking” effect will occur. Excessive pressure will cause a “chattering” effect. Move the tool over the surface with slightly overlapping strokes. Do not grind, sand, or file in one area for any extended length of time without stopping and allowing the metal to cool. Excessive heating of the metal will alter its metallurgical structure. 11.5.2 Pneumatic Sanders. To prevent pneumatic sanders with oscillating heads from digging into the metal, start the sander before it touches the metal. When the sanding stroke is finished, lift the sander from the metal before pressing the stop switch. Do not lay the unit down with the motor running. For best results, apply moderate pressure while holding the sander against the work. Move the sander over the surface with parallel and slightly overlapping strokes. Move it as slowly as possible without causing overheating of the metal. Generally, the coverage rate should be about two square feet per minute. 11-5
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TO 1-1-700 TECHNICAL MANUAL CORROSI
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TO 1-1-700 TABLE OF CONTENTS Chapte
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TO 1-1-700 TABLE OF CONTENTS - CONT
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TO 1-1-700 LIST OF ILLUSTRATIONS -
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TO 1-1-700 FOREWORD 1. PURPOSE. The
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TO 1-1-700 List of Related Publicat
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TO 1-1-700 SAFETY SUMMARY 1. GENERA
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TO 1-1-700 AMS-G-6032, GREASE, PLUG
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TO 1-1-700 MIL-DTL-64159, COATING,
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TO 1-1-700 MIL-PRF-27617, GREASE, A
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TO 1-1-700 O-L-164, DRESSING, LEATH
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TO 1-1-700 MIL-T-81772, THINNER, PO
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TO 1-1-700 tronics equipment and th
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TO 1-1-700 cleaning situation, syst
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TO 1-1-700 c. Riveted joints shall
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TO 1-1-700 c. Remove and replace an
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TO 1-1-700 MIL-L-87177, LUBRICANT,
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TO 1-1-700 Figure 3-1. Simplified C
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TO 1-1-700 resistant, and also at t
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TO 1-1-700 is first noticeable as a
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TO 1-1-700 3.7.8 Oxygen Concentrati
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TO 1-1-700 Figure 3-14. Concentrati
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TO 1-1-700 Figure 3-17. Galvanic Se
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TO 1-1-700 Figure 3-20. Aluminum Su
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TO 1-1-700 3.8.7 CRES/Stainless Ste
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TO 1-1-700 3.9.10 Climate. Warm, mo
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TO 1-1-700 3.11 PREVENTATIVE MAINTE
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TO 1-1-700 CHAPTER 4 COMPOSITE AND
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TO 1-1-700 4.4.4.4 Glass parts shal
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TO 1-1-700 CHAPTER 5 PACKAGING (STO
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TO 1-1-700 extent of damage dependi
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TO 1-1-700 5.15 PRECAUTIONS FOR VCI
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TO 1-1-700 c. Secure the desiccant
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TO 1-1-700 Figure 5-8. Shock Isolat
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TO 1-1-700 Figure 5-9. Examples of
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TO 1-1-700 5.24.10 Rigid or Flexibl
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TO 1-1-700 CHAPTER 6 MOISTURE AND F
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TO 1-1-700 c. 6.2.6 Felt. Examine f
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TO 1-1-700 a. After first directing
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TO 1-1-700 6.4.5.14 Terminals, scre
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TO 1-1-700 NOTE • Authorized clea
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TO 1-1-700 Table 7-1. Cleaning of S
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TO 1-1-700 7.3.1.2.3 Portable, 45 g
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TO 1-1-700 Table 7-2. Common Milita
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TO 1-1-700 inactivity, storage, or
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TO 1-1-700 7.5.6.5.1 Grade 1 - A th
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TO 1-1-700 Table 7-4. Corrosion Pre
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TO 1-1-700 Table 7-5. Preservation
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TO 1-1-700 either case, MIL-PRF-269
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TO 1-1-700 MIL-PRF-85285, COATING,
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TO 1-1-700 c. Cadmium plated surfac
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TO 1-1-700 a. Scuff sand and feathe
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TO 1-1-700 7.7.7.2 If surface is no
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TO 1-1-700 7.7.9.2 Where only parti
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TO 1-1-700 7.8.1 Type I Application
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TO 1-1-700 Extend (Loctite) 32150 J
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TO 1-1-700 There are three ways to
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TO 1-1-700 vulnerable surfaces clea
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TO 1-1-700 Table 8-2. Materials, Th
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TO 1-1-700 Table 8-4. Electronic Cl
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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 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
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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
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Page 238 and 239: TO 1-1-700 of 20 to 25 seconds in a
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
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TO 1-1-700 MIL-PRF-81733, SEALING A
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TO 1-1-700 Figure 12-12. Typical Me
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TO 1-1-700 may be used for low temp
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TO 1-1-700 Figure 12-14. Sealing Pr
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TO 1-1-700 - Robins Air Force Base

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