MAINTAINABILITY DESIGN TECHNIQUES METRIC - AcqNotes.com

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Downloaded from http://www.everyspec.<strong>com</strong> on 2011-10-29T14:56:01.DOD-HDBK-791(AM)Figure 4-21.Handles Facilitate Removal of Covers and Carrying of UnitsFigure 4-24.U-Type Lugs Facilitate RepairsFigure 4-22.Cases Should Lift Off UnitsFigure 4-25.RepairsSpacing Wire Leads FacilitatesFigure 4-23.Additional Use of HandlesFigure 4-26. Terminals Should Be LongEnough to Prevent Damage to InsulationDuring Repairs4-18
Downloaded from http://www.everyspec.<strong>com</strong> on 2011-10-29T14:56:01.DOD-HDBK-791(AM)Figure 4-27. Route Cables So They Are Not Likely to Be Walked On (Ref. 3)Figure 4-28. Route Cabling to Avoid SharpBends (Ref. 3)tionary equipment and sliding chassis or hinged doorsshould have service loops to permit movement, such aspulling out a drawer for maintenance, without breakingthe electrical connection. The service loops should containa return feature to prevent interference when theremovable chassis are returned to the cabinet. Fig. 4-29shows two methods of recoiling the cable.Cable connectors should be far enough apart to insurefirm gripping for connecting and disconnecting (Fig. 4-30). The space required will depend on the size of theplugs plus a minimum separation of 64 mm (2.5 in.).Figure 4-29. Methods for Recoiling ServiceLoops in Sliding Chassis (Ref. 3)4-19
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MAINTAINABILITY DESIGN TECHNIQUES METRIC - AcqNotes.com

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