JD670 MidMountMower attachment help please!

   / JD670 MidMountMower attachment help please! #1  

Anonymous Poster

Epic Contributor
Joined
Sep 27, 2005
Messages
29,678
I finally tracked down a 60" MMM for my 670 and it has all the attachment brackets, but I simply cannot figure out where the lift arms for the mower attach to the lift. I haven't ordered the manual for the mower yet, but I've figured out everything except the lift attachment. I was told that it hooks to the 3 point hitch lift arms somehow.

Also, does anyone have the JD phone number to order manuals? I know it is here somewhere! /forums/images/graemlins/tongue.gif
 
   / JD670 MidMountMower attachment help please! #2  
it came when new with a cross bar for your lower lift arms,
and a adjustible bar that came from it to the links to the deck.
I had a picture of the setup, but can't seem to find it.
The number for books is 1-800-522-7448
 
   / JD670 MidMountMower attachment help please!
  • Thread Starter
#3  
Thanks for the reply.
So, your saying there is a bar that fits to the lower lift arms....I think I've found it in the JD online parts catalog. Does it mount just like an implement, say, a drawbar? If so, I must be missing a piece as the adjustable links from the deck don't come close to reaching that far to the rear of the tractor. The weird part is, whatever connecting piece I don't have here doesn't seem to show up in the parts diagram for the mower deck.

Do you happen to know if the newer tractors use the same type of lifting system for the deck? If so, a trip to the local dealer may be in order.
 
   / JD670 MidMountMower attachment help please!
  • Thread Starter
#4  
This is the process for my 4010 with the 60" MMM. I hope it helps.
Remove the pins from the shaft that hold the 3PH lift arms on, and remove the spacers between the lift arms and the pins (Hopefully there are spacers). There are 2 brackets that are "L" shaped; approx. 6" long, 5 inches high, and the "L" is about 2" long. These fit on the shaft in place of the spacers, with the "L" portion of the bracket sitting on top of the lift arms - when the arms go up they push up on the "L" rotating the bracket around the lift arm shaft.
There are 2 "turn buckles" (my term, not necessarily the manuals) that attach to the "L bracket" and the rear of the "mower lift arms". The turnbuckles have a slot on one end. The slot end attaches to the "L bracket"; this slot allows the mower to float.
The other end of the mower lift arms attach to brackets that attach to the outside of the frame. There should be 2 pcs. of plate steel that need to go between the frame and these brackets (1 pc. per bracket) that are used if you do not have a FEL.
Make sure the 3PH is lowered at this point.
In the approx. middle of the lift arms there is a hole for the pin that lifts the mower. Line up the hole with the U shaped mower mounting bracket and put the pin in...same thing both sides.

Front frame mount: Bolt into place between the frame rails at the front of the tractor. Attach front lift arms of Front lift assembly to the mower and insert the spring loaded "J" hooks thru the hole in the front mounted lift arms. Install Front lift assy. into the Front Frame mount, lift the arm on the Front lift assy. rotating it until the pin in the assy. can engage into the hole in the mount.
On the end of the mower drive shaft, push the collar back and rotate it; it will lock in place. Install onto PTO shaft until collar releases and locks into place.
VIOLA ! Raedy to mow.
BTW...before installing your mower, I would suggest making sure the bolt that holds the drive pulley onto the gear box shaft is tight. Mine wasn't and allowed the pulley to loosen on the shaft, which broke the bolt. At this point, you pull the mower back off, take the drive unit off, try to find a metric bolt (M10 X 1.5 I believe) at night or on a Sunday (cause that's when it ALWAYS happens). Put it back together, put the mower back on and try again.
This is all from memory so forgive me if I left something out. Forward any questions and I'll try and answer them.
Tip: turn 2 rear wheels 90 degrees to normal orientation; remove spring from front right wheel and turn the wheel 90 degrees also. This allows the mower to "roll" under the tractor.
Good Luck!
 
   / JD670 MidMountMower attachment help please!
  • Thread Starter
#5  
I can tell you've done that drill a few times! /forums/images/graemlins/smile.gif

Great explanation, it sounds like the "L brackets" are what I need to be ordering. I set the deck in place, and sure enough, the mower lift arm/turnbuckles line right up under the lower lift arm pivot points. And there are spacers there now.

I surely appreciate the help fella's. Now mabe I can have this baby mowing by next weekend.
 
   / JD670 MidMountMower attachment help please! #6  
Here is a picture of my 770 attachment, which I believe is pretty much identical to the 670.
 
Last edited:
   / JD670 MidMountMower attachment help please! #8  
Last one, hope these pictures help (hope I got the piece you were describing /forums/images/graemlins/crazy.gif), as you can tell it's a little muddy around here /forums/images/graemlins/grin.gif
 
Last edited:
   / JD670 MidMountMower attachment help please!
  • Thread Starter
#9  
You da man zenmek!

Thanks for the pictures, as it looks like I'll be fabricating a set for the 670. I can't find the part number for them on either the mower or the tractor parts breakdown, and the similar set for the 4010 cost over $200 a piece! Looks simple enough, and now that I have some pictures I can get the length right, or close enough.

Ya'll have been a great help.
 
   / JD670 MidMountMower attachment help please!
  • Thread Starter
#10  
Hollywood,
I noticed in the pictures Zenmek supplied (Great Job!) that the mower is yellow. If your mower is yellow those brackets should be fine...however, if your mower is green (providing it is a J.D. mower) it weighs significantly more than the yellow mower and should be modified to withstand the extra weight.
The part of my bracket that hangs over the top of the lift arm is approx. 6 inches long, providing more "lift" area. Hope this helps. If not, please forget you read it. /forums/images/graemlins/wink.gif

Regards,

Rick
 

Tractor & Equipment Auctions

2015 CHEVROLET SILVERADO CREW CAB TRUCK (A51406)
2015 CHEVROLET...
80in HD Tooth Bucket with Side Cutters ONE PER LOT (A51039)
80in HD Tooth...
2019 Generac MLTS-1 2.4kW Towable LED Light Tower (A49461)
2019 Generac...
2016 Ford F-150 Ext. Cab Pickup Truck (A50323)
2016 Ford F-150...
1968 John Deere 4020 with 7ft Mower (A51039)
1968 John Deere...
2012 WESTERN STAR 4900 SB (A50854)
2012 WESTERN STAR...
 
Top