The Roodhart Group has completely overhauled a Dresser Roots Blower for a glass factory. The blower is completely disassembled to parts level and then cleaned and sandblasted. New stub shafts were placed on the lobes and then clocked out. After clocking out, the dowel holes in the lobes are machined and fitted with new dowel pins. The blower was then completely rebuilt with new bearings and seals. The entire overhaul, including removal, replacement and alignment on location, was carried out in 5 days.