John Deere 2750: John Deere Review  -- John Deere Tractors Discussion Forum and Review John Deere 2750: John Deere Review -- John Deere Tractors Discussion Forum

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 07-09-2004, 15:33 Post: 90453
kenthamm



Join Date: Jul 2004
Location: Tennessee
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Posts: 1
 John Deere 2750

I own a 84 or so John Deere 2750 tractor & I would like to know why I have to turn the steering wheel for it to start properly When I try to start it without turning the sterring wheel the motor turns over very slow, This may be a dumb question but I would still like to know.






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 07-09-2004, 21:32 Post: 90478
jdgreen

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Join Date: Jul 2003
Location: Maryland
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Posts: 192
 John Deere 2750

The 2750, as well as most other larger deere models, use a closed center hydraulic system. Even while cranking, the pump is trying to produce 2300 psi which is putting additional load on the starter. When you turn the steering wheel while cranking the engine, it releases some of this high pressure oil to the steering system and the engine cranks faster. If everything in the starting circuit is up to par, turning the steering should not be neccasary. One of your batteries may be weak, one of the battery cables may have resistance, or the starter may need repair. If your starter has ever been replaced, someone may have installed the incorrect one. If you have a chronic problem with this and you would like to improve the starting, there is an electric destroke kit for the hydraulic pump available. It prevents the pump from building pressure while cranking. It is pretty expensive and it is something you would probably want the dealer to install. Some pumps have a manual destroke valve from the factory. If you see a "T" handle in the top of your pump, try turning it in a few turns before cranking the engine. You will be amazed how much faster it cranks. After the engine starts, you will need to back out the screw completely so the hydraulics work. I hope this answers your question without confusing you. I just remembered, there is also a heavy duty starter available that cranks faster with less current draw. A new one is RE51694 and a reman one is TY6719.






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