Shops On Wheels. Machines fail where they work, not in the shop. Having over 107 Heavy Equipment Field Service trucks is just part of the story! Western States also has Resident Field Service Technicians strategically located to ensure full support for pockets of customers away from branches. Field Service Technicians are selected based on their experience and diagnostic skills. Trucks are equipped with tools, manuals, diagnostic equipment, welders, cranes and more. Getting a qualified Technician onto your jobsite saves time and costs associated with hauling a machine. Western States offers fast, accurate solutions in the field because you need them!