6-1 PREVENTIVE MAINTENANCE
Table 6.1 Preventive Maintenance Checks and Services for ATN PS-15
Item | Interval | Location Item to | Procedure | Not functioning at | |
No. |
| Check/Service |
| optimal level If | |
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| • Open carrying case, inventory items. | Not Current. | |
1. | Before | Maintenance | • Previously recorded faults on mainte- |
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| nance records. | Fault not corrected. | |
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| Goggles |
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| Inspect lenses for dirt, fingerprint | Scratches or chips | |
2. | Before/After | Optical | residue, chips, or cracks. If necessary, | hinder vision with | |
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| Surfaces | clean and dry lens with water and lens | goggles turned on, or if | |
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| tissue. | cracks are present. | |
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3. | Before/After | External | Inspect for cracks or damage. |
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Scratches and gouges are OK if opera- | Cracked or damaged. | ||||
Surfaces | |||||
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| tion is not affected |
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