Remove tar, pitch, and carbon accumulated in coke-collecting mains.
What does a Tar Chaser do?
Removes tar, pitch, and carbon accumulated in coke-collecting mains, using chisel bar: Lifts plugs from collecting main, using hook. Places disk over plughole and shoves chisel bar through center hole of disk. Twists bar to pry tar from walls of main. Removes tar and pitch from traps, using spooning bar. Sweeps and cleans area. Cleans spray nozzles of collecting mains, using wire-cleaning tool. May apply steam to loosen residue from walls of collecting mains.