re·tool 
(rē-tl)
(rē-tl)v. re·tooled, re·tool·ing, re·tools
v.tr.
1. To fit out (a factory, for example) with a new set of machinery and tools for making a different product.
2. To revise and reorganize, especially for the purpose of updating or improving: had to retool the city's economy.
v.intr.
To fit out a factory with a new set of machinery and tools.