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Massey Harris & Massey Ferguson Tractors Discussion Forum
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MF 35 draft control, Help,

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HootisMN

11-19-2003 09:01:57




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I have a 35 Ferguson can someone explain the draft control to me. I have two levers one will raise and lower the 3-point. What doe sthe other do? Thanks a lot. I am 26 and really enjoy old tractors and machinery, I really apperciate all the help from you older fellas :)




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David UK

11-20-2003 05:32:08




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 Re: MF 35 draft control, Help, in reply to HootisMN, 11-19-2003 09:01:57  
Manuals from Bob will explain ho wto use it but basically draft control is for use with soil engaging implements to allow you to preset the force you will use when pulling them. This force iss directly related to the depth that you pull them at, so effectively draft control sets the depth. The force that it actually monitors is the compression force on top link and it automatically alters the linkage height to keep this force constant. Provided soil conditions don't change too much across the field, this lets the implement stay at same depth regardless of whether tractor is going over ridges or through hollows. If you use position control the implement would tend to dig in when front of tractor is rising and lift out as it is lowering. On position control it can easily dig in to the point of stopping the tractor. Draft control compensates in this situation by raising the implement slightly if compression load on top link increases. Its not perfect though. If ground conditions vary, forces will vary and depth of work will vary too unless operator compemsates for this by altering draft control as required. Modern tractors tend to use lower link sensing (based on movement in the lower link pins from pulling forces) to monitor the draft loads and control depth. When I was a teenager I also wondered what it was all about and only really understood after doing some ploughing and using it. The response contol determines how quickly the linkage system responds to changes in draft force and functions a bit like a "sensitivity" control.

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BOB UK

11-19-2003 15:02:00




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 Re: MF 35 draft control, Help, in reply to HootisMN, 11-19-2003 09:01:57  
Send me an email and I will send you back the complete instructions from my manual, including the pictures of the correct positions

BOB UK
England



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Murray

11-21-2003 17:16:22




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 Re: Re: MF 35 draft control, Help, in reply to BOB UK, 11-19-2003 15:02:00  
Hi Bob, was just reading your message re: sending the information, could you be so kind and to forward that info to me also. Thanks, Murray



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BOB UK

11-22-2003 08:32:48




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 Re: Re: Re: MF 35 draft control, Help, in reply to Murray, 11-21-2003 17:16:22  
Hi Murray
No problem but you have blocked your email address,
Click on BOB UK above and send me an email.

BOB UK



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