So anyhow... Hawkins and Graves showed up Wednesday to install diesel exhaust air scrubbers on the heavy machinery - including the IT38 Front-End Loader, the Hitachi Zaxis 350's and 450's, the CAT excavator, and a few others - eight in all... All the machines were installed rapidly and back in service sometimes within half an hour. Thank you Scott and Mike for your help - the scrubbers allegedly cut emissions down by 70% without dramatically reducing horse power. At a cost of $32,000+ total we certainly hope they do some work.
Often times less expensive techniques are sufficient to really help construction worker's lives. When cutting concrete a simple dust mask helps tremendously. You never now what additives may be in the concrete - cover your mouth and cut on through...
Originally purchased to better enjoy metal casting and the lost styrofoam technique - this nuclear, biological, chemical mask really made sewer manholes more tolerable. Granted my boss Andy Fitzgerald regards them as sissy and warns he's going to "flush me" if I have cardiac arrest while wearing one... whatever - time in a manhole may be necessary at times - it is hardly pleasurable - certainly a great task for robots...
One thing to consider too... there's often splashing in live lines and covering them mucous membranes is a fine thing.
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