Seized Gearbox — 72-Hour Turnaround
A 400-ton kraft pulping line seized at 2 a.m. on a Monday. The gearbox had spun a bearing and scored the housing. Unplanned downtime was costing the mill $18,000/hour.
Our crew rigged the 6.2-tonne gearbox out with strand jacks, machined the housing in-situ with a portable boring bar, pressed new bearings, and re-installed with laser alignment verified to manufacturer tolerances before the day shift arrived.
Line back online in 68 hours. Alignment verified at ±0.0005″ across all planes. Zero repeat failures in 14 months of follow-up.
6.2 t
Tonnage Handled
±0.0005″
Alignment Tolerance
6 Journeymen
Crew Size
68 hrs
Turnaround




