... air filter, exhaust silencer, bellow, all intake and exhaust piping, cablings, instruments, valves and settings, etc.1.4 ... switch, thermostatic heater, engine shaft mounted fan, all interconnecting piping, cablings, instruments, valves and settings, etc.1.5 Lubricating ... pumps, oil sumps, oil strainers and filters, all interconnecting piping, instruments, valves and settings, etc.1.6 Starting system, ...