08-20001_CHASSIS ASSEMBLY NBOC MLV.pdf

This document is a technical drawing and parts list for a Chassis Assembly (NBOC MLV), an elevated work platform or elevated work vehicle system designed for NASA Balloon Program operations.

The chassis assembly serves as the structural and mechanical foundation for a mobile platform system capable of extension and retraction operations. Key specifications include torque requirements ranging from 5 ft-lbs to 450 ft-lbs across multiple connection points, with hand-tightened fasteners required throughout. The assembly features hydraulic cylinders for boom elevation control, locking mechanisms, safety railings, and a wheel and tire configuration for caterpillar or cat-type equipment. The platform includes adjustable and non-adjustable port end assemblies, triple-lock and pager mechanisms, and intermediate boom extension capabilities. The design incorporates stowed and transport configurations, with the stowed position featuring elevated storage and the transport configuration enabling mobility.

The parts list identifies over 40 individual components sourced from multiple manufacturers including Parker Hannifin, Caterpillar, Michelin, and Master Carr, with part numbers, descriptions, and source information provided. All hydraulic fittings must comply with Parker catalog specifications, hoses require testing to manufacturer specifications, and all fasteners specified are stainless steel or zinc-plated with specific torque requirements. The document contains proprietary NASA Balloon Program information marked as unclassified with export control restrictions prohibiting use outside authorized contractors without express written authorization.