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Hydraulic Unit Drives Hydrant Seat Removal
Author(s) -
Meyers Dennis
Publication year - 2012
Publication title -
opflow
Language(s) - English
Resource type - Journals
eISSN - 1551-8701
pISSN - 0149-8029
DOI - 10.5991/opf.2012.38.0058
Subject(s) - crew , loader , bit (key) , division (mathematics) , engineering , auger , unit (ring theory) , computer science , mechanical engineering , aeronautics , computer security , psychology , mathematics education , arithmetic , mathematics
The Cedar Rapids (Iowa) Water Division distribution team experienced a recurring problem when trying to rebuild breakaway‐style fire hydrants dating from the 1960s and 1980s. In many cases, when crews needed to remove the hydrant valve seat, the seat would be corroded and seized up. Crew members modified the high‐flow auger hex drive unit attachment for the division's compact track loader, which can deliver 3,700 ft‐lb of torque to an auger attachment bit. The auger bit was changed into a quick coupler by cutting off the top 12 in. of the bit and welding the section to the top of a fire hydrant valve seat removal tool.