How about:
3) Coke bed collapse trapping drill stem assy. inside the drum.(and/or cutting system malfunction causing a delay in coke removal operation)
4) Hot Spot during cutting ( due to bad quenching of the drum.)
How about:
3) Coke bed collapse trapping drill stem assy. inside the drum.(and/or cutting system malfunction causing a delay in coke removal operation)
4) Hot Spot during cutting ( due to bad quenching of the drum.)