08-20000_MLV ASSEMBLY NBOC MLV.pdf

This document is a technical drawing and assembly specification for a Multi-Load Vehicle (MLV) assembly for the NASA Balloon Program. The drawing provides detailed mechanical specifications and assembly instructions for a semi-chassis interface cart system used in balloon payload operations.

The MLV assembly consists of a chassis-mounted cart with dual wheels, hydraulic systems, and various mechanical components designed for lifting, transporting, and securing balloon-related equipment. Key specifications include a 250-gallon hydraulic oil capacity, GFI-protected 120V power systems with maximum 40-amp rating, and lift capacity measured in foot-pounds with certification requirements. The assembly features service and parking brakes with MATE quick disconnects, retractable hydraulic cylinders, and load binder tension rods with specific torque specifications (1.6 to 2.2 ft-lbs for various components). Critical assembly steps involve securing the chassis with jacks on tires, removing wheels and axles for inspection, installing fasteners with specified torque values, and retracting cylinders with load binders before deployment. The document specifies MIL-PRF-1791 Type II graphite aluminum anti-seize compound for threaded fasteners and includes detailed part lists referencing McMaster-Carr and other industrial suppliers. All dimensions are in inches unless otherwise specified, and the drawing is marked as approved and unclassified. This technical specification is the property of the NASA Balloon Program and is restricted from external use or distribution without express written authorization.