A professional who inspects railroad locomotives in roundhouse or shop to determine extent of wear and needed repairs, using handtools and measuring instruments. Respnsibilities include:

• Examines firebox, journal boxes, and bearings to detect wear.
• Taps parts, such as rods, wheels, and bolts with hammer or rawhide mallet and listens to sound to detect ruptures or cracks.
• Measures wheel flanges with calipers and depth gauge to detect excessive wear or flat spots.
• Reports defects to roundhouse supervisor or prepares inspection report form.