25. Handle for air-brake valve.
26. Valve for controlling air-brake.
27. Pipe for conducting air to brakes under the cars.
28. Pipe connected with air-reservoir.
29. Pipe-connection to air-pump.
30. Handle for working a valve which admits or shuts off the air for driving-wheel brakes.
31. Valve for driving-wheel brakes.
32, 32′. Lever for moving a diaphragm in smoke-box, by which the draught is regulated.
33. Handle for raising or lowering snow-scrapers in front of truck-wheels.
34. Handle for opening cock on pump to show whether it is forcing water into the boiler.