Posted by ss55 on February 23, 2019 at 11:34:02 from (63.147.218.40):
In Reply to: Pre sound guard body posted by SVcummins on February 22, 2019 at 21:50:24:
Could that prototype cab have been built to test the visibility out of the new center post cab design and test the access to climb in and out of the cab?
It would be interesting to know what the noise level was inside that prototype cab compared to the production version on the Generation II tractors. Factory cabs of the day (except the Case 70 series) were almost all in the 89-95 dB range compared to 81-83dB in SG. Turbo chargers seemed to provided more noise reduction than the early factory cabs did.
Most of the noise reduction in Sound Gard cabs was from isolating the cab from the engine, hydraulics and the transmission. Without integrating the front console, side console, and cab floor into the isolated structure of the cab, the prototype might have been just as loud as the existing factory cabs were. Maybe someone who has retrofit a SG cab onto a new generation tractor has measured the sound level at full throttle, full load?
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