Any JD 4700 HST mechanics in here ?

[Hoss710]

it's a 2001 4700 with HST. they ordered a transmission pump for it. but still haven't split it. I told them to order a swash plate bearing as well. my 4320 with e hydro has given me little to no problems. I had 1 proximity switch go bad. a quick replacement. and no other issues.

 

[Hoss710]

Ok it's been 7 weeks since I dropped it off at the dealership. went there today and was told the transmission mechanic from another of there locations, will start the teardown at there location on Monday. Really hope he doesn't get sick or catch covid between now and then !

 

[Hoss710]

they started splitting the tractor this afternoon. they should have it separated by mid day tomorrow. talked to the 1st tech. he stated that both forward and reverse max pressure was 1000 lbs . but he also said that he believes he heard either the relief valves or possibly the pump squealing with the brakes held and pedal depressed forward or reverse. the have a new pump and swash plate assembly on hand for the repair.

 

[Hoss710]

OK another update. young man split the tractor on the rear side. not engine side. so it will have to be split there as well. he normally works on the 1000 and 2000 series which has the transmission in the rear. everything looked good. nothing worn or damaged in the rear section. hopefully by Monday he will have the transmission out. screen did have a small amount of fine metal in it. but nothing crazy or excessive.

 

[Hoss710]

a few more pictures

 

[Hoss710]

Went by today. they had the transmission out. lots of metal inside. needs both pressure pump. and hydraulic motor. a few bearings and some seals. some of the parts are no longer available from deere. so this could get interesting. if all parts were available that would be around $6600.00 just for parts . they also found the rocker shaft wasn't assembled correctly and was rubbing the housing causing metal shavings. I have tried to find a used transmission for possible spare parts, but no luck. and John deere doesn't have replacement transmissions for it anymore. they were discontinued a bit more then a year ago. they had cleaned most of it up by the time I got there . but had shown me a few pictures of all the metal they found. but I did take a few pictures.

 

[Hoss710]

So my dealership was able to locate all but 2 wear plates to rebuild the transmission. the wear plates had minor wear. so I was able with minimal work lapped them in and they look good as new. all parts should be there by Monday if not sooner.

 

[beenthere]

So my dealership was able to locate all but 2 wear plates to rebuild the transmission. the wear plates had minor wear. so I was able with minimal work lapped them in and they look good as new. all parts should be there by Monday if not sooner.

Sounds like you are doing this at a non-JD dealer. By the looks of the "shop" and your recent post. That right?

 

[Hoss710]

nope it's a John deere dealership. Atlantic tractor in Mechanicsville MD. very small shop. there use to be a bigger John deere dealership nearby. but Atlantic bought them out. there service area was about 4 times larger.

 

[Hoss710]

have another update. it's back together. but not 100% yet. but should be Monday sometime. then they will test it. and if all goes well the new 440R loader will go on .