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Massey Harris & Massey Ferguson Tractors Discussion Forum
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MF 3660 low flow hyd circuit problems 3660 wont mo

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Massey Perkins

03-12-2006 19:10:54




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I have a 91 model 3660 that I recently purchased and today after a big wet snow storm I went to push some snow and it is having problems. Upon starting it the low pressure hyd. light stays lit and it wont move. All other functions seem to work great ( steering, 3 point, pto, aux. hydraulics) the tractor has a relatively new hyd pump and new filters. It is of the autotronic era and has the dynashift transmission. thanks for any help.

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Tom Dold

03-14-2006 14:46:50




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 Re: MF 3660 low flow hyd circuit problems 3660 won in reply to Massey Perkins, 03-12-2006 19:10:54  
A 3660 with Dynashift transmission should move without any hydraulic oil pressure. However, you will have only one speed of the dynashift speeds. I forget which one it is 1st or 2nd. The solenoids on the side of the transmission determine which speed it uses. No power to either solenoid (which is the same as having no oil pressure) is one speed, power to one solenoid
is another speed, power to the the other solenoid
is a speed and power to both solenoids is yet the last speed. I could tell you which ones are which with some research, but I believe your problem is something other than low hydraulic pressure. If I can help contact me.

Tom Dold
Dold Implement
201 S. Main St.
PO Box 70
Howard, SD 57349 605-772-4541
dold@alliancecom.net

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