[AT] Noise Concerns

[charlie hill]

I agree Ken.  It's along the same line as what I said about the turbos.
Years ago I was helping a friend of mine who got behind on his farming
due to weather.  I spent about 6 hours on a Turbo'd JD in the 100+ hp range.
I forget the number but it was in the 4000 series.  The tractor was nearly 
new
and had a good muffler.  It didn't seem loud at all but that night my ears
were ringing worse than after any other piece of equipment I've ever run.
I used to drive trucks with 8-71 detroits with gutted mufflers and I've been 
around
a lot of loud construction equipment but that JD did a number on me.  It had 
to be
the turbo.  Of course, now that you mention it, that tractor was also 
hydrostatic
drive so it could have been either or both.

Charlie

-----Original Message----- 
From: Ken Knierim
Sent: Friday, April 03, 2015 10:54 AM
To: Antique tractor email discussion group
Subject: Re: [AT] Noise Concerns

My concern is with hydrostatic drives (like Bobcats use) making noises
above normal hearing range... it sounds quiet(er) but you're still half
deafened. Perhaps it's not as bad as I think but I'd like to know more. I
usually have my shooting protectors on (habit) but I don't know the ins and
outs of the noises it generates... and possible ultrasonic damage to my
ears.

Ken in AZ

On Fri, Apr 3, 2015 at 7:22 AM, Dennis Johnson <moscowengnr at outlook.com>
wrote:

> Herb,
>
> Probably a bigger concern is noise from riding mowers and weed eaters.
>
> Todays tractors have slightly quieter engines, cabs to shield noise, etc.
> Still, hearing protection is good to used.
>
> Thanks,
> Dennis
>
>
> Sent from my iPad
>
> > On Apr 3, 2015, at 8:38 AM, Herb Metz <metz-h.b at comcast.net> wrote:
> >
> > The noise(s) created by boosters (turbo-chargers, super-charges, etc) is
> the subject. The screaming Detroit Diesel two cycle truck engine of a
> couple decades ago have been thoroughly discussed; conclusion was “you can
> tell who the operators were because they hollered ‘what’ the loudest and
> the most frequent”; so that does not need re-discussed.  My experience is
> none;  last sizeable tractor I operated was Dad’s Super M in 1968, before
> he retired.  What about todays operators; should they be using special
> hearing protection for db. protection?  for frequency protection?
> Hopefully those few operators (not many on an antique tractor forum) are
> using any needed protection, and can share such information. Herb(GA)
> > _______________________________________________
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