Is all John Deere all imperial

[Futremechanic]

Hello all again, Sorry for the really stupid questions as I work on agricultral equiment which my love working at it daily is increasing since I started serving my time,

Is all John Deere nuts & bolts imperial or metric does anyone know I know for a fact nearly all hydraudlic I came across are imperial

Is many John Deere bolts or bolts 12 point so I can start buying more 12 point sockets as I have few 12 point sockets already

Thanking you all

 

[vssjim]

I depends on the the Deere was made some are Metric and some are Inch. I don't think they ever made any whitworth that I know of. Also newer are also Metric for the most part as far as hydraulic lines most will be inch series so far.

 

[RCStocker]

Imperial is old British and different form Whitworth.
It would be eather Metric or SAE.

They have both depending on the make and models. My guess is you will find both on most equipment just like cars. I know my 3 John Deere tractors have both.

 

[tdkkart]

The big farm tractors should be primarily english, the small utility/large lawn stuff will likely be metric as they have been built overseas for years.

 

[Displaced Hokie]

I work for JD, but I don't know the firm cutoffs. For US factories, I know on the lawn and garden stuff JD changed engineering software @ 1990 and everything from then on is all metric. I think US-built Agricultural product switched around the same time. That would mean going to not only metric fasteners, but also steel that is metric thickness too.

As said, anything that was built overseas (Japan for compact utility tractors, or Germany for utility tractors) would have been metric since the mid-1970's

Not saying you are like this O.P., but I do think it's interesting that folks expect new JD's to still be SAE. It's like there is some kind of betrayal if it's metric.

 

[crewchief888]

'97 / '98 (or there abouts) when the powertech series engines were introduced in the const line, all engine hardware switched over to metric, the only 12pt fasteners i recall were 14mm or 15mm for rod bolts.

i'm sure that has changed by now.

deere and many other OEM's have been changing hose and fitting end sizes over the past few years.
a hose/tubeline that typically took a 1" wrench, now it's 1 1/16"

 

[bobcatdan]

All you need to take a Deere apart is a 1 3/16" on the older ones and 30 mm on the newer ones.

 

[Bullitt427]

Construction equipment is likely 95% metric, but you will come across the odd SAE fastener.

AG equipment can be a ****-shoot with the primary machine being metric and the attachments, hitch etc being a mix-n-match.

I was a field tech for Deere for 14 years, and all of my tools, metric and SAE, have battle scars.

If you wrench on the big-boy toys be prepared to have wrenches and sockets well over 1 1/2". Wrenches to at least 2 3/4" and sockets well over 3 1/2" to work on hydraulic cylinders.

Not too mention 3/4 and 1" impact guns.

As I mentioned above, the main machine might be all metric, but if an outside vendor's product is used (like a Woodward Governor, hydraulics, Stanadyne etc) they also mix-n0match.



Josh

 

[sk farmer]

ag equipment would be mostly sae up until the 50-60 series. they were a mix and have moved to nearly 100% metric on the newer stuff. older machines that have had starters, ac and charging equipment replaced will more than likely have metric threads and fasteners. my advice is you better be pretty well stocked with both sae and metric.

 

[AZ_Catskinner]

While they do exist, metric hydraulic fittings don't pop up very often. The only place I've EVER run into them was on a POS Demag face shovel (which, after working its way through 4 or 5 mines did the world a favor by burning to the ground).

Deere equipment is just like Cat in that metric rules the roost up to a certain size (around 36mm on most Cat stuff), then it becomes all SAE.

 

[5lima30]

Most of the under 40 hp compact tractors are mostly metric. The full size models above that should be SAE. As a side note almost all the 3 pt implements/attachments and front end loaders are usually SAE. JMHO.

 

[jdw8320]

Most all newer deere equipment is metric

 

[Futremechanic]

Thanls all for your advice, I greatly apppricte as my workplace is starting to get alot of John Deere agricultral in for service & repairs.