[AT] John Deere 4200 compact tractor power steering Alert

charlie hill charliehill at embarqmail.com
Fri May 31 16:43:48 PDT 2013


Could be this problem is just now showing up due to the number of hours on
these machines and Deere is not yet aware of it.  If it was just one case 
they'd
probably ignore it but if more show up they should be doing a recall.

Charlie

-----Original Message----- 
From: Ernst Borchert
Sent: Friday, May 31, 2013 7:18 PM
To: 'Antique tractor email discussion group'
Subject: Re: [AT] John Deere 4200 compact tractor power steering Alert

I would not expect John Deere to do this either, but they might buy
the cylinder as an assembly and have no way to inspect it. There is no way
to get the piston out of the cylinder without machining the weld off the end
of the cylinder. This cylinder has never been apart and I suspect that some
one failed to add the "Loctite" to the screw. This must had been a problem
for John Deere as the new cylinder has the rod end with threads so that the
rod, piston and seal can be removed and repaired. The old cylinder can not
be repaired and therefore has never been repaired and reassembled by a
careless person. I found another person on the internet with a John Deere
4200 and the same problem. This made it easy for me to trouble shoot the
problem.
So it is a John Deere problem in which a recall should have been
issued. Since they may not be aware of this happening at road speed; they
have not issued a recall. I have notified John Deere through our local
dealer.

-----Original Message-----
From: at-bounces at lists.antique-tractor.com
[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of charlie hill
Sent: Friday, May 31, 2013 2:04 PM
To: Antique tractor email discussion group
Subject: Re: [AT] John Deere 4200 compact tractor power steering Alert

That would make sense Larry.  I can't imagine a company of the size and
stature of Deere allowing a known defect of such importance to go
unaddressed.

Charlie

-----Original Message----- 
From: Larry Goss
Sent: Friday, May 31, 2013 12:39 PM
To: Antique tractor email discussion group
Subject: Re: [AT] John Deere 4200 compact tractor power steering Alert

Alan, I would suspect that someone broke the seal on the tractor that's
being discussed here, and didn't bother reassembling it correctly. The
description of a strictly hydraulic steering system is pretty typical of
modern compact tractors. I own three of them (all different brands) and none

has a mechanical link between the steering wheel and the steering bell
crank.

Larry

----- Original Message -----
From: Alan Nadeau <ajnadeau1 at myfairpoint.net>
To: Antique tractor email discussion group <at at lists.antique-tractor.com>
Sent: Fri, 31 May 2013 12:21:34 -0400 (EDT)
Subject: Re: [AT] John Deere 4200 compact tractor power steering Alert

I have repaired quite a few of the welded cylinders.  While not easily
repairable they are relatively easy to take apart.  Every one I have had
apart had the piston bolt VERY firmly secured with Loctite or similar
retaining compound.   If done properly, and the ones I have seen have been,
it is sometimes impossible to get the piston bolt out without heating it to
break the locking compound loose.


----- Original Message ----- 
From: "Ernst Borchert" <eb3 at shelby.net>
To: "'Antique tractor email discussion group'"
<at at lists.antique-tractor.com>
Sent: Friday, May 31, 2013 7:59 AM
Subject: [AT] John Deere 4200 compact tractor power steering Alert


> My neighbor has a 2000 John Deere 4200 tractor with loader. The other day
> while driving it on 226 in W.NC the steering quit and turned the wheels
> completely to the left and sent him across the highway into the other side
> of the road. It was lucky that no traffic was coming and there was no
> ditch
> on the side of the road. The steering on these tractors have no mechanical
> connection between the steering wheel and the front wheels, but are
> controlled by hydraulic pressure diverted to a cylinder connected to the
> front wheels. The bolt that holds the piston to the rod in the cylinder
> came
> unscrewed due to vibration, thus forcing the wheels to the left. The
> cylinder is of welded construction so you can not check the tightness of
> the
> bolt and you can not repair the cylinder. The replacement cylinder is
> repairable. The thing is that if the cylinder fails at road speed or in a
> difficult situation the results can be fatal. Be careful out there,
>
>
> _______________________________________________
> AT mailing list
> http://www.antique-tractor.com/mailman/listinfo/at
>

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