TO 35-1-3 - Robins Air Force Base

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TO 35-1-3 7.2 SE SWA AOR DEPLOYMENT. 7.2.1 Pre-deployment. Prior to deployment of SE to SWA AOR it is recommended that the following actions be taken to prevent sand/dust intrusion during deployment. a. Accomplish a complete SE wash per Chapter 2 prior to deployment. b. Inspect entire exterior/interior surfaces for missing or deteriorated primer/paint. c. Touch-up all deficient areas with approved processes and materials per Chapter 3. d. Inspect and remove any standing water in unit. e. Inspect and clean all drain holes. f. Minimize lubrication by removing all excess greases/oils to limit sand/dust entrapment. 7.2.2 Deployment Location. Soils in SWA AOR locations should be considered suspect and removed on a regular basis. A constant regimen of vacuuming or brush removal of sand/dust accumulations is necessary to reduce potential corrosion problems. 7.2.2.1 SE Units Requiring Additional Cleaning. Some units require additional cleaning process due to air filters, exposed lubrication areas, and areas that may be more prone to sand/dust entrapment. Figure 7-4. Locally Manufactured Permeable Covers 7.2.2.1.4 Open Circuit Boards/Cards. After cleaning open circuit boards/cards per TO 1-1-689-3, apply a thin coat of avionics grade corrosion preventive compound, MIL-PRF-81309, Type III, to the board to insulate the circuits from sand/dust intrusion. 7.2.2.1.5 Wire Bundles. Sharp angular sand/dust particles can migrate into wiring bundles where vibration caused by equipment operation can result in abrasive action that can cause chafing of the wiring (Figure 7-5). Remove trapped sand from around and between bundled wires to prevent electrical problems. 7.2.2.1.1 Radiators, Vanes, Filters and Coils. SE that have radiators, vanes, filters, and coils require additional cleaning to remove dust/sand that can block cooling ports and filters which are drawn into the units during operation. Clean using engineering approved materials. Allow the units to dry in an enclosed area to prevent airborne sand/dust from adhering to wet surfaces. 7.2.2.1.2 Portable Hydraulic Test Stands/Mobile Air Compressors. These units typically have interior fluid leaks that will allow sand/dust to cling to the surfaces. Close inspection and wipe down of these units are necessary to maintain proper operation. 7.2.2.1.3 Aircraft Jacks and Tow Bars. Jackscrew bodies and adjustable arms should be kept free of sand/dust at all times. The use of locally manufactured permeable covers (Figure 7-4) will assist in prevention of sand/dust intrusion. Lubricate units using corrosion preventive compound, MIL-L- 87177, Type 1 to reduce corrosion problems. Figure 7-5. Wire Bundle Sand/Dust Accumulation 7-2 Change 4
TO 35-1-3 7.2.2.1.6 Felt-Soundproofing Insulation. Periodically inspect areas where felt-soundproofing insulation is present for moisture and/or sand/dust accumulations. Insulation found to be wet should be removed and allowed to dry before replacing or replaced with new clean, dry insulation. Inspect areas behind insulation for corrosion or deteriorated coatings. Repair areas as required prior to reinstalling installation. 7.2.3 Maintenance Touch-Up Painting. Maintenance touch-up painting of small areas should be accomplished when bare metal surfaces are exposed to prevent further deterioration and protect against corrosion. Touch-up painting should only be accomplished using approved touch-up materials listed in Chapter 3. 7.2.3.1 Temporary Coating Repair. Temporary coatings are to be used to protect the surfaces until the unit can be permanently repaired as required. Corrosion preventive compound, MIL-DTL-85054 is a water displacing CPC that forms a clear, dry, flexible film on the surface. This is temporary and will require reapplication as needed. Refer to Chapter 3 for application and removal instructions. 7.2.3.2 Permanent Authorized Touch-Ups. For permanent touch-up of small areas use only authorized coating systems listed in Table A-1. The use of primer and topcoat are required for permanent touch-ups. 7.2.4 Equipment Storage. In the harsh environments of SWA it is recommended that SE be stored indoors or under covers. Permeable fabric covers are recommended for short and long-term storage of equipment. These covers can be purchased or locally manufactured. They allow for airflow to prevent condensation and sand/dust buildup on/in the equipment. Change 4 7-3/(7-4 blank)
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TO 35-1-3 TECHNICAL MANUAL CORROSIO
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TO 35-1-3 TABLE OF CONTENTS Chapter
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TO 35-1-3 TABLE OF CONTENTS - Conti
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TO 35-1-3 LIST OF ILLUSTRATIONS Num
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TO 35-1-3 FOREWORD 1. PURPOSE. The
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TO 35-1-3 SAFETY SUMMARY 1. GENERAL
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CHAPTER 1 CORROSION THEORY, IDENTIF
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TO 35-1-3 Table 1-1. Galvanic Serie
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TO 35-1-3 sion. Improper dilution o
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TO 35-1-3 1.6.7.3 When dry, some mi
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TO 35-1-3 Figure 1-7. Example of Pi
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TO 35-1-3 Figure 1-11. Illustration
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TO 35-1-3 1.8 METALS AFFECTED BY CO
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TO 35-1-3 CHAPTER 2 CLEANING 2.1 GE
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TO 35-1-3 E Table 2-1. Wash Interva
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TO 35-1-3 Table 2-1. Wash Interval
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TO 35-1-3 2.1.5.3 Immersion in clea
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TO 35-1-3 2.1.6.2.10 MIL-PRF-87937,
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TO 35-1-3 Table 2-2. Authorized Cle
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TO 35-1-3 2.1.7.2 Cleaning Compound
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TO 35-1-3 removal and surface treat
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TO 35-1-3 2.2.6.1 Authorized HPW Eq
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TO 35-1-3 CHAPTER 3 PAINTING, SEALI
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TO 35-1-3 3.3.2.3.1 Unless otherwis
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TO 35-1-3 Table 3-1. Authorized Coa
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TO 35-1-3 3.5.2.3 Air Force will ac
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TO 35-1-3 with AMS 3367, Class A or
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TO 35-1-3 3.11 MAINTENANCE STAND RA
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TO 35-1-3 b. Type III An ultra thin
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TO 35-1-3 Table 3-2. Pretreatment I
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TO 35-1-3 b. Azko Nobel 10P3-2 Akzo
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TO 35-1-3 removed prior to the fina
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TO 35-1-3 3.22.1 SE Undercoating Co
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TO 35-1-3 3.26.7 Wire Harness and C
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TO 35-1-3 4.2.3.4 Other optional in
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TO 35-1-3 Figure 4-3. Sample Mobili
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TO 35-1-3 Legend for Figure 4-4. In
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TO 35-1-3 Legend for Figure 4-10. I
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TO 35-1-3 - Robins Air Force Base

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