[AT] One-way cylinder

[Alan Nadeau]

I just had the opportunity to review that exact hookup in the operators 
manual that came with a NH 3930 that we bought at my shooting club.  Ford 
says to hook a single acting cylinder to the port for the lower function (if 
it were double acting)to extend then use float to lower.

I'm wasted with hay fever right now so I'm pretty fuzzy but I'm also 99% 
sure I remember it right.  By using the "lower" port you don't have to go 
through neutral to get the SA cylinder into lowering.


----- Original Message ----- 
From: "Dennis Johnson" <moscowengnr at outlook.com>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Tuesday, September 06, 2016 5:15 PM
Subject: Re: [AT] One-way cylinder


> Brad,
>
> My guess is that you could need to first connect another valve that would 
> let the flow dump from the same port to let the cylinder retract.
>
> Dennis
>
> Sent from my iPad
>
>> On Sep 6, 2016, at 4:05 PM, Gunnells, Bradley R <brad-gunnells at uiowa.edu> 
>> wrote:
>>
>> The other day while mowing hay the Select-O-Speed in the trusty old Ford 
>> started to slip. So not sure what’s up with that tractor yet. On my mower 
>> conditioner I have a cylinder that’s setup as a simple one-way cylinder. 
>> I’d like to keep it that way as I have a WD-45 I’d like to use on it at 
>> some point.
>>
>> For the time being I thought I’d use the John Deere 2640 (late 70’s 
>> machine) but wondered if I can use the cylinder with just the single 
>> hose? I assume I can plug it into the lift port to raise it and then drop 
>> the handle to the float position to bring it back down? I didn’t see 
>> anything in the manual that addressed this type of use.
>>
>> Thanks for any thoughts.
>> Brad
>>
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