[AT] Supposedly why our old tractors are not metric and a fairly simple tutorial
Cecil Bearden
crbearden at copper.net
Tue Feb 25 11:29:31 PST 2020
Since I have a spinal problem and now one worn out stiff knee, getting
up and down under anything is a problem. Once I get down I have to
either make do with what I have or haul all 300 lbs of myself up and get
what I need then when I get within a foot of the floor, I usually just
try to fall on something soft!!!!!! I have seriously been looking at
this creeper made for aircraft. https://ezcreeper.com/ I just wish it
was available with an electric pump. I have been looking for a drill
powered hydraulic pump to adapt to this creeper.
Cecil
On 2/25/2020 12:56 PM, Ron Cook wrote:
>
> Which is what I do. And danged if I still don't have the right one!
>
> Ron Cook, Salix, IA
>
>
> On 2/25/2020 12:47 PM, Stephen Offiler wrote:
>> As a matter of fact I turn 58 today, and I maintain my physical
>> fitness to the best of my ability, so you're probably right in that
>> regard. But sorry, I reject the notion that bringing the wrong
>> wrench is a blood-pressure-raising event, and I stand fast by my
>> comment. This simply isn't an argument against the metric system.
>> Seriously, just bring several wrenches...
>>
>> SO
>>
>> On Tue, Feb 25, 2020 at 1:28 PM <deanvp at att.net
>> <mailto:deanvp at att.net>> wrote:
>>
>> Steve,
>>
>> You may not have reached the age where getting down and under a
>> vehicle and then getting back up is a major effort. Having the
>> wrong wrench when I get under there is not a happy event. Should
>> I give up DIY wrenching? Not a chance as long as my body is
>> still warm. If I didn’t keep trying to do this stuff I would
>> have been 6’ under a long time ago,
>>
>> Dean VP
>>
>> Apache Junction, AZ
>>
>> *From:* AT <at-bounces at lists.antique-tractor.com
>> <mailto:at-bounces at lists.antique-tractor.com>> *On Behalf Of
>> *Stephen Offiler
>> *Sent:* Tuesday, February 25, 2020 8:18 AM
>> *To:* Antique Tractor Email Discussion Group
>> <at at lists.antique-tractor.com <mailto:at at lists.antique-tractor.com>>
>> *Subject:* Re: [AT] Supposedly why our old tractors are not
>> metric and a fairly simple tutorial
>>
>> You might want to re-think the whole DIY wrenching thing if
>> that's all it takes to get your blood pressure up.
>>
>> SO
>>
>> On Tue, Feb 25, 2020 at 10:13 AM ustonThomas Mehrkam
>> <tmehrkam at sbcglobal.net <mailto:tmehrkam at sbcglobal.net>> wrote:
>>
>> It was a evil plot to sell us another set of tools. The proof
>> is I still need two sets to service my modern pickup.
>>
>> It sells a lot of blood pressure meds. Especially when I
>> crawl under the darn thing only to find that one d at m bolt is
>> metric causing a cussing wrench throwing fit as I crawl back
>> out to get that evil metric wrench.
>>
>> Sent from AT&T Yahoo Mail on Android
>> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature>
>>
>> On Tue, Feb 25, 2020 at 3:40 AM, Thomas Martin
>>
>> <tmartin at xtra.co.nz <mailto:tmartin at xtra.co.nz>> wrote:
>>
>>
>> > On 25 February 2020 at 17:12 John Hall
>> <jtchall at nc.rr.com <mailto:jtchall at nc.rr.com>> wrote:
>> >
>> >
>> > Don't know why they couldn't change pipe threads, after
>> all the rest of
>> > the planet uses 60 deg, not 55 for the British threads.
>> Can't really see
>> > how it is simpler than what we use. I mean how exactly
>> do the Japanese
>> > explain such? Never seen a German print in inches
>> either for that
>> > matter. If metric is so much better, then go all in I say.
>>
>> Well the rest of the world for a long time was British or
>> used British technology
>> before Sellars came along with his 60º thread form in the
>> US. The US wasn't a great exporter
>> at the time, focusing more on internal expansion &
>> self-sufficiency
>> >
>> > You missed the part about leaving out the bastard pipe
>> threads, didn't
>> > you? We did so much hydraulic work at one point that
>> all I stocked was
>> > NPTF, it works for NPT. As you know, NPT covers the
>> vast majority,
>> > while NPTF will cover the majority of whats left. The
>> scraps can be left
>> > to those who specialize in oddities.
>> >
>> > Never needed an IH bearing that I couldn't source from
>> wherever. The
>> > only roller bearing I ever needed that was manufacture
>> specific was the
>> > plunger bearing on a New Holland baler. Motion
>> industries finally was
>> > able to cross it, but I couldn't find it any where
>> else, not even
>> > aftermarket ag parts. And the bearing housing had to
>> come from New
>> > Holland, nothing even close. That set up cost me close
>> to $300
>> >
>> I think there is a slight time frame difference in our
>> work experience,
>> My experience with Cat, IH, & AC was in the 60s & 70 and
>> included
>> machinery built in the 50s. Cat & IH did insist on
>> bearings that were
>> only Cat & IH inclusive, whereas AC crawlers that used
>> more Timken style
>> bearings, could be sourced from any bearing supply co.
>> Five times cheaper
>> than Cat Or IH equivalents.
>> An interesting aside was that, rarely was there a need
>> for machining with
>> AC, Cat or, IH as regards remedial repair of parts. Good
>> designs leave little
>> room for improvement.
>>
>> > We have an entire section of bastard taps at work, it
>> has just as many
>> > oddball metrics as it does english. It all depends on
>> the industries you
>> > support as to what is in your tool crib.
>> >
>> Around here, its fruit and meat processing.
>> At the local Heinz cannery, all the peach & pear lines
>> were American sourced,
>> and the makers delighted in shaft sizes like 1-7/16",
>> 1-9/16" & 1-15/16"
>> with ODs to match. Only source was the manufacturer.
>> Another delight was the spaghetti extruder, it had a 50hp
>> motor driving
>> the extruder through reduction gears, every every shaft
>> was a nominal size +
>> a 1/16" Guess where the bearings had to come from. It had
>> one bad design
>> fault in that the heaviest reduction had no hunting
>> teeth, and it had some
>> very bad wear patterns revealed on dismantling, had a
>> blank forged in Australia,
>> it was about 600mm with a 152mm face. :-)
>> >
>> > I've found that engineers don't always make stuff weird
>> so you have to
>> > buy from them, its often so you don't make a
>> substitution that
>> > compromises the design. But there are some that need a
>> plate glass
>> > stomach.....
>> "Plate glass stomach"?
>> Don't know that saying, although I have modified modified
>> maker's efforts
>> for the better, when their designs were found wanting.
>> Flattering when they
>> come up with the same improvement...
>>
>> Tom
>> >
>> > John
>> >
>> > On 2/24/2020 10:41 PM, Thomas Martin wrote:
>> > >> On 25 February 2020 at 15:17 John Hall
>> <jtchall at nc.rr.com <mailto:jtchall at nc.rr.com>> wrote:
>> > >>
>> > >>
>> > >> Fun fact. Did you know metric pipe threads are
>> actually in inches? They
>> > >> are actually 55 deg threadform (British Whitworth)
>> but the pitch is in
>> > >> metric. And the real fun part is that the rest of
>> the planet can't even
>> > >> decide how to spec them on drawing/print/blueprint.
>> Different countries
>> > >> have different designations for the same thing. Off
>> the top of my head,
>> > >> I think there are a combined 7 different ways of
>> designating metric pipe
>> > >> threads (taper and straight), as opposed to just 2.
>> Now we won't split
>> > >> hairs with short projection, dryseal or other
>> specialty threads--lets
>> > >> stick to 99.999% of pipe threads.
>> > >>
>> > >> FWIW, I have 30 years in a machine shop and have
>> continually used both
>> > >> english and metric without an issue. Its the rest of
>> the planet that
>> > >> makes a big ordeal out of it, we just grab a print
>> and go with it.
>> > >> English, German, Japanese--its all the same--until
>> we have to use
>> > >> Translate Google to figure out the notes.
>> > >>
>> > >> One more fun fact. Next time you need some roller
>> bearings for your old
>> > >> tractor and start measuring them only to find they
>> aren't exactly
>> > >> english, convert them to metric--you might ought to
>> sit down first.
>> > >>
>> > >> I won't even get into European conduit threads--I've
>> only had to do them
>> > >> twice.
>> > >>
>> > >> John Hall
>> > >>
>> > > Well, John
>> > > Europe did adopt BSP (British Standard Pipe) threads
>> > > back in the 19th century, difficult to change horses now.
>> > > Quite a simple setup compared to the American system!
>> > > Did you know that the US has 11 diffent derivatives of
>> > > National Pipe threads?
>> > > As for 11-1/2 tpi NPT, I bet many a lathe manufacturer
>> > > swore when Norton invented the quick change gearbox for
>> > > lathes and provision had to be made for that.
>> > > In fact would say I have cut more peculiar threads of US
>> > > origin that elsewhere.
>> > > That goes for bearings also. Both Caterpillar and IH
>> used to
>> > > get bearings, especially taper-roller, ground to their
>> > > specific sizes, so that only they could supply, at a cost
>> > > 5 to 10 times the cost of a standard size! Extortionate!
>> > > Competition finally forced them into standardization
>> in the finish.
>> > > FMC was another who engaged in the practice in
>> another field.
>> > >
>> > > Tom
>> > > _______________________________________________
>> > > AT mailing list
>> > > AT at lists.antique-tractor.com
>> <mailto:AT at lists.antique-tractor.com>
>> > >
>> http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com
>>
>>
>> >
>> > _______________________________________________
>> > AT mailing list
>> > AT at lists.antique-tractor.com
>> <mailto:AT at lists.antique-tractor.com>
>> >
>> http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com
>> _______________________________________________
>> AT mailing list
>> AT at lists.antique-tractor.com
>> <mailto:AT at lists.antique-tractor.com>
>> http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com
>>
>> _______________________________________________
>> AT mailing list
>> AT at lists.antique-tractor.com
>> <mailto:AT at lists.antique-tractor.com>
>> http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com
>>
>> _______________________________________________
>> AT mailing list
>> AT at lists.antique-tractor.com <mailto:AT at lists.antique-tractor.com>
>> http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com
>>
>>
>> _______________________________________________
>> AT mailing list
>> AT at lists.antique-tractor.com
>> http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com
>
> _______________________________________________
> AT mailing list
> AT at lists.antique-tractor.com
> http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.antique-tractor.com/pipermail/at-antique-tractor.com/attachments/20200225/fd04a3e8/attachment.htm>
More information about the AT
mailing list