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TO 1-1-700 - Robins Air Force Base

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<strong>TO</strong> 1-1-<strong>700</strong><br />

4.4.4.4 Glass parts shall be free of cracks, breaks, severe<br />

chipping, sharp edges or scratches that may impair their function<br />

or present a personnel health/safety hazard.<br />

4.4.4.5 Electrical wires and cables having plastic jacket insulation<br />

shall not be painted or coated with greases or oils except<br />

as required for protection from moisture and fungus. Consult<br />

<strong>TO</strong>s 00-25-234, 1-1-689-series, 1-1A-14, and 31-1-75 for<br />

additional information.<br />

4.4.5 Rubber. Rubber materials and parts shall be inspected<br />

on a frequent periodic basis for damage and deterioration. If<br />

degradation is sufficient to seriously affect the function (or<br />

appearance, if essential) of the material, repair or replacement<br />

shall be conducted. Repair or replacement shall be in accordance<br />

with best manufacturing practices, the equipment system<br />

specific maintenance manuals, <strong>TO</strong> 31-1-75, and any other<br />

approved <strong>Air</strong> <strong>Force</strong> procedures and methods for the material<br />

under repair. Additional specific requirements are:<br />

4.4.5.1 Rubber parts and components shall be in a live condition<br />

with sufficient resilience to ensure proper function. Rubber<br />

materials shall not be cut, torn, crushed, stretched,<br />

distorted or worn to the extent that they no longer function<br />

properly for their intended purpose. Installation methods shall<br />

be in accordance with the equipment system specific maintenance<br />

manual and any other approved <strong>Air</strong> <strong>Force</strong> procedures.<br />

4.4.5.2 Natural and synthetic rubber shall not be painted or<br />

oiled. As a general rule, grease should not be applied to rubber<br />

parts, but some parts, such as “O” rings, require a grease coating<br />

(consult the appropriate equipment system-specific maintenance<br />

manual).<br />

4.4.5.3 Many types of rubber are subject to fungus growth<br />

(e.g., mold, mildew) which can cause deterioration of the rubber<br />

and corrosion of surrounding metal surfaces. If fungus is<br />

noted on rubber parts, they should be cleaned in accordance<br />

with methods in Chapter 6 of this manual for fungus removal<br />

and reinspected for damage or deterioration.<br />

4.4.5.4 If damaged rubber material is found, it shall be<br />

replaced with new rubber material of equal or better quality<br />

and properties. Installation methods shall be in accordance<br />

with the equipment system specific maintenance manual and<br />

any other approved <strong>Air</strong> <strong>Force</strong> procedures.<br />

4.4.6 Felt. Felt materials shall be inspected on a frequent<br />

periodic basis for damage and deterioration. If degradation is<br />

sufficient to seriously affect the function (or appearance, if<br />

essential) of the material, repair or replacement shall be conducted.<br />

Repair or replacement shall be in accordance with best<br />

manufacturing practices, the equipment system specific maintenance<br />

manual, <strong>TO</strong> 31-1-75, and any other approved <strong>Air</strong><br />

<strong>Force</strong> procedures and methods for the material under repair.<br />

Specific requirements are:<br />

4.4.6.1 Felt shall be inspected for tears, hardening, wear,<br />

fungi, or other evidence of damage, deterioration or failure<br />

that results in serious degradation of function. If damaged felt<br />

is found, it shall be replaced with new felt material of equal or<br />

better quality and properties. Installation methods shall be in<br />

accordance with the equipment system specific maintenance<br />

manual, <strong>TO</strong> 31-1-75, and any other approved <strong>Air</strong> <strong>Force</strong> procedures.<br />

4.4.6.2 Felt materials shall not be painted. Oil or grease shall<br />

not be applied to felt materials.<br />

4.4.7 Honeycomb and Foam-Beam. Maintenance and<br />

repair of honeycomb and foam-beam structure materials as<br />

defined by paragraphs 4.4.7.1 through 4.4.7.4 shall be repaired<br />

per the procedures and methods specified in Chapter 4 of <strong>TO</strong><br />

35E4-1-162.<br />

4.4.7.1 Foam-Beam (aluminum face sheets bonded to polyurethane<br />

composite core)<br />

4.4.7.2 Paper Core (aluminum face sheets bonded to resinimpregnated<br />

paper honeycomb core)<br />

4.4.7.3 Polymer (Plastic) Core (aluminum face sheets<br />

bonded to fiberglass honeycomb core)<br />

4.4.7.4 Aluminum Core (aluminum face sheets bonded to<br />

aluminum honeycomb core)<br />

4.4.8 Gaskets. Gaskets shall be inspected on a frequent<br />

periodic basis for damage and deterioration. If degradation is<br />

sufficient to seriously affect the function (or appearance, if<br />

essential) of the material, repair or replacement shall be conducted.<br />

Repair or replacement shall be in accordance with best<br />

manufacturing practices, the equipment system specific maintenance<br />

manual, <strong>TO</strong> 31-1-75, and any other approved <strong>Air</strong><br />

<strong>Force</strong> procedures and methods for the material under repair.<br />

Additional specific requirements are:<br />

4.4.8.1 Gaskets will be live, resilient and have no breaks,<br />

tears, cracks or chips that would impair making a tight seal for<br />

the intended application.<br />

4.4.8.2 Cork or paper gaskets, when disturbed by removal of<br />

parts from equipment, shall be replaced with a closed cell<br />

rubber gasket having the same physical dimensions.<br />

4.4.8.3 Gaskets showing evidence of permanent set or deformation<br />

shall be replaced.<br />

4-3

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