questions about my 670

[supratreo]

hi, i'm new here and have a few questions about my first tractor, JD 670 4wd.

i bought it with a bucket and backhoe and i would like to take the backhoe off and use the pto. i want to get a tiller but first need to know what my 3pt is missing. i know i need the lift links but don't know what else, if someone could post pics that would be great. i also have all of the manuals and a parts explosion but its hard to tell what i need.

next, i need help picking a tiller and box scraper. i will only be using the tiller 2-3 times a year so i don't want to spend too much but want decent quality. what do you guys rec.? i also found a model 35a tiller made for a 400, would this work? this thing puts out about 16hp at the pto.

any help would be great. thank you very much.

 

[kebo]

If you are missing all the stuff to hook up a 3pt implement, there are a couple places that sell kits that will fit most tractors. Here is one place:

3 POINT HITCH KITS - eezs.com

I believe your 670 would take the item 29411 for $129.

As for implements, you definitely want to go with 4ft implements for your 670. It's actually rated as subcompact, so it's light on weight and power.
Good luck!

 

[supratreo]

thank you very much for the help. i will try to take a look at it this weekend and see what i need. i thought i just needed the lift links but i'll take a look, i also thought that there were some springs in there so i'll have to see.
also, does it matter if i get a cat1 or cat3?

 

[supratreo]

ok, so i found this:
3 point hitch

is that all there is for a 3 pt hitch? my owners manual makes it look much more complicated. if this is all there is then i will take some measurements and place my order.

 

[dirt ditch]

The 670 and 790 3pt hitches look the same on the JD parts catalog website with a few of the parts, like the draft links, having the same part numbers. The one spring (#18) I see is the one to hold the draft links in away from the tires, but that can be replaced by a bungee cord. The other springs listed are locking pins (#12) that are just the R clips that keep the sway chain turnbuckles set once they are properly adjusted and the turnbuckle handles that are spring pins (#10). I will try to measure the length of the draft links this evening.

 

[irwin]

ok, so i found this:
3 point hitch

is that all there is for a 3 pt hitch? my owners manual makes it look much more complicated. if this is all there is then i will take some measurements and place my order.

First: The 670 is a cat 1 3pt.
Second: I'm not sure that 3pt kit in your link will work with the 670. Not all tractors are set up the same, if the part description doesn't say "will fit your tractor" do not buy it without doing your homework. Here's a link to the Deere site Parts look up John Deere - Parts Catalog

 

[dirt ditch]

Here is the pics of the 3pt draft link on my 790. The draft links have the same part number so maybe it will help. I held the end of the tape at the center of the lower ball swivel for the pic. Good luck.

 

[supratreo]

thank you very much, that is a huge. looks like there isn't much to the hitch. now to take my backhoe off. thanks again.

 

[supratreo]

well, took a closer look at it and it looks like i don't have a seat switch. is there anything else i will discover when i go try to use an implement?
thanks again for all the help.

 

[supratreo]

anyone?

 

[irwin]

well, took a closer look at it and it looks like i don't have a seat switch. is there anything else i will discover when i go try to use an implement?
thanks again for all the help.

Just make sure it all works properly..ie: PTO, 3PT hydraulic lift.

About the seat switch..it's up to you if you're comfortable without it. The backhoe use requires the seat switch to be temporarily overridden..almost all other 3 pt implements you "should" have it functioning.

Just get everything you need and get the 3pt working, if you have problems come on back here and ask. If you want the seat safety switch I'm sure you can get everything you need from Deere.

Good luck, and have fun getting more uses out of your 670.

 

[supratreo]

i know its been a while but i finally took a good look at it. it doesn't have a seat switch and when i try to use the pto (without an implement), the engine just shuts down. does that mean i need to get the seat switch? my backhoe works just fine.
thanks.

 

[irwin]

i know its been a while but i finally took a good look at it. it doesn't have a seat switch and when i try to use the pto (without an implement), the engine just shuts down. does that mean i need to get the seat switch? my backhoe works just fine.
thanks.

The first time I tried to use my PTO on my old 770 the engine died.. finally I read the manual and found the seat switch and did what the diagram showed. I was good to go after that.

If the engine stalls when the PTO is switched on I suspect you have a safety switch issue.

Can you take a picture of the under seat area? Find the seat switch wires and jumper them together and see if the PTO works.

 

[supratreo]

thanks for the reply. i looked around and there is no switch. just 1 or 2 connectors that are open so i'm not sure how the backhoe works since it has a different switch. might there be another switch somewhere? also, on your 770, does the seat switch have a 3 pin connector? i don't have a EWD for this tractor and the manuals have just the basic stuff.
thanks again.

 

[dirt ditch]

Here is JD's 670 diagram with the seat safety switch circled (#1-6). Lift your tractor seat up and it will be attached to the cross member that is ghosted out in the diagram. (D) in the other picture is the switch as seen under the seat of a 790 in JD's manual (looks to be the same). If it does not have the seat switch then the pto probably will not work.

What backhoe do you have? I assume the hoe hydraulics are feed by the 670's power beyond, so it would have nothing to do with the operation of the pto. If you can post pictures that could help us understand what you are seeing.

 

[supratreo]

ya, i def. don't have a seat switch. do you have a pin out of the wiring? do they make a EWD for the 670? when i bought the tractor it came with every manual for it and the attachments (6-7 books total) but no wiring diag.
BTW, its a JD 7 backhoe, does not run off the pto.
thanks for the reply.

 

[dirt ditch]

Here is a link to the JD Parts Catalog web page.

John Deere - Parts Catalog

Here are the front and back 670 wiring pics from that site. Look them up for the parts lists. The European 670 seat safety switch looks different than this. You have not stated where you are in your members profile so that may be a factor. You may have to visit a JD dealer for more help.

Good luck.
.

 

[irwin]

thanks for the reply. i looked around and there is no switch. just 1 or 2 connectors that are open so i'm not sure how the backhoe works since it has a different switch. might there be another switch somewhere? also, on your 770, does the seat switch have a 3 pin connector? i don't have a EWD for this tractor and the manuals have just the basic stuff.
thanks again.

Sorry no longer have the 770. If you use the power beyond for the backhoe then the seat switch wouldn't be a factor..

You said there is some wire connectors under the seat? If you can figure out which one is for the missing seat switch you could jumper them to make sure the pto is okay, then order the parts needed.

The picture and diagrams that dirt ditch posted look just like what I had with the 770. The 670 is basically the same.

 

[supratreo]

thanks for the help. i was planning on jumping the connector but i'm not sure which one it is. it looks like it might be the one with 3 pins but shouldn't this switch only have 2?
i'm in in California btw.
thank you.

 

[irwin]

thanks for the help. i was planning on jumping the connector but i'm not sure which one it is. it looks like it might be the one with 3 pins but shouldn't this switch only have 2?
i'm in in California btw.
thank you.

Yes it's possible the seat switch has 3 wires, but I no longer have a repair manual for the 670/770.. but jumpering the wires is a simple thing. A cheap electrical meter tester will help determine what the connectors are for ...but I'd just try using something that can be connected easily and disconnected quickly, like paperclips. If the connector isn't for the seat... a light maybe, you might pop a fuse so be a little careful.