Help Loosening up

   / Help Loosening up #1  

Suburban Plowboy

Platinum Member
Joined
Jul 31, 2018
Messages
759
Location
FL
Tractor
Kubota L3710
Help Loosening up Pivot Shaft on 60" Deck

I have a John Deere 430. Removing the mower deck is a pain. There is a lever on the left side, and you pull it to rotate a part that connects two arms to the deck. The rotating part has two big flanges that press against the inside of the frame. It's supposed to be loose enough to permit the part to rotate pretty easily, but on my tractor, it's very tight, making reinserting the part very difficult.

I assume this is a defect. Surely they don't expect you to use a hammer every time you install the deck.

The part number is AM39379.

I was considering putting a bottle jack between the frame rails and bending them outward a millimeter or so, to loosen it up. Then I wondered if this was likely to split whatever connects the frame rails.

Can anyone here give me advice? I hate it when things that are supposed to be fast and easy to take apart turn out to be scams.
 
Last edited:
   / Help Loosening up
  • Thread Starter
#2  
Help Loosening up Pivot Shaft on 60" Deck

I think I may use a clamp to bend the flanges. If they break, it's easier to repair than the frame.
 
Last edited:
   / Help Loosening up #3  
Can you take a pic and post, I have a 430 with a 60" deck, so I can help but need some more info. I think you talking about the lift arms and the quick release pins???

The P/N you gave is the deck drive shaft???
 
   / Help Loosening up #5  
Suburban Plowboy
Don't think it is either a defect in design or a scam.. just sayin...

Maybe worn and need of a replacement.

(removed spring pin comment)

Edit:
I think Ford850 has the correct part shown in that link.
 
Last edited:
   / Help Loosening up #6  
I have a John Deere 430. Removing the mower deck is a pain. There is a lever on the left side, and you pull it to rotate a part that connects two arms to the deck. The rotating part has two big flanges that press against the inside of the frame. It's supposed to be loose enough to permit the part to rotate pretty easily, but on my tractor, it's very tight, making reinserting the part very difficult.

Have you pulled the pin that lets the handle rotate?
 
   / Help Loosening up #7  
See pictures.
 

Attachments

  • 20190529_141440.jpg
    20190529_141440.jpg
    4 MB · Views: 218
  • 20190529_141448.jpg
    20190529_141448.jpg
    3.5 MB · Views: 231
   / Help Loosening up #8  
I spray the surface that fits inside of the frame and the inner part of the frame with a dry lube. Plus you have to get that pin to move freely also.
 
   / Help Loosening up #9  
If it were mine, I would remove the deck and take a flap disc to both rubbing surfaces. A few thousandths off would not hurt a thing.

A flap disc like this; 4-1/2 in. 36 Grit Flap Disc
If you do not have a grinder, you can use a large bastard file. (remember files should only be used on the push stroke)
 
Last edited:
   / Help Loosening up #10  
As others already said also anti seize the living heck out of it.
 

Tractor & Equipment Auctions

2017 GENIE GTH-636 TELESCOPIC FORKLIFT (A51242)
2017 GENIE GTH-636...
2012 FREIGHTLINER CASCADIA (A50854)
2012 FREIGHTLINER...
Vacuworx MC3B Vacuum Lifter (A50860)
Vacuworx MC3B...
2018 Toro Groundsmaster 7200 72in Zero Turn Mower (A48082)
2018 Toro...
1000 Gallon Water / Chemical Tank (A50860)
1000 Gallon Water...
2018 Ford F-150 (A51039)
2018 Ford F-150...
 
Top