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|  MIL-T-62531(AT)
APPENDIX A
requirements for unscheduled maintenance. Scheduled and preventative maintenance shall be
minimized, wherever possible, through utilization of designs reducing the number of parts
requiring servicing.
Guidance
Insert the required power takeoff data in the blank space.
Verification Rationale
Verification of the power takeoff installation and proper attachment of all related components
must be ascertained to assure functional performance of the controls, gear, universal joints and
shafts.
Verification Guidance
Preparation and use of an inspection check sheet, such as a FIR, citing all the accessories,
components, adjustments and connections will provide a documented record and assurance that
proper installation has been accomplished.
3.4.8 Lighting. All vehicle lights, reflectors and wiring shall be as specified herein and shall
conform to MIL-STD-1179. Lights and reflectors shall not be mounted on vehicle bumpers.
Rear lighting shall be mounted in a protective location to preclude damage when interfacing with
other vehicles or ancillary equipment. Vehicles shall be equipped with a blackout and marker
lighter system. Front and rear turn signal lamps shall be provided. Turn signal operating units
shall have visible and audible flash indicators and shall be mounted on the steering column.
Rationale
Design shall include emphasis on providing sufficient lighting, reflectors and associated
signaling equipment to enable safe operation of military vehicles in darkness and other
conditions of reduced visibility, and during blackout conditions. Vehicles must be equipped,
both fore and aft, with special low intensity blackout lights to prevent observation at night. A
special switch is required in conjunction with the blackout lights to prevent accidental use of the
regular service lights during blackout operations. All lights on the exterior of the vehicle must
be totally waterproof. The voltage of the lamps must correspond to the design voltage of the
electrical system.
Verification Rationale
Verification of the lighting system installation and proper attachment of all related
components must be ascertained to assure functional performance of vehicle lights, reflectors
and wiring.
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