7.Maintainability:

A further requirement of a lean cell is ease of operation. In a pull-through system, long down periods cannot be tolerated. The product must be generated while consumer demand exists. The ultimate in keepability is given by a modular structural framework. Components may be removed in a matter of seconds [34]. The design of bolt together ensures that computer stands, part presentation equipment or workplaces can be repaired in seconds. In a limited amount of time, even whole computer bases can be restored. Also, the systemic framing scheme provides for all machine bases, guards, a source for common components, workstations and with standardized elements, maintaining a structure requires a minimum number of resources. Three or four basic hand tools are necessary to construct or restore any structure with a structural framing system [36].
