Center Nut on the 425

   / Center Nut on the 425 #1  

pajoube

Veteran Member
Joined
Oct 11, 2001
Messages
2,225
Location
Montana (Near Bozeman)
Tractor
Former Owner PowerTrac 425 (September 2003)
I have read over the past months that a number of you PT owners bought a wrench to tighten the center pivot nut.
Well I thought this over and ended up buying a 1 13/16 wrench on EBay about 6 months ago, put it aside and never gave it much more thought.
Today was a nice day out so I rummaged around and found it and tightened the center nut.
Boy, was I ever surprised at how lose it was. I did at least 10 half turns until it was tight.
Sure glad I bought than wrench. By the way, I paid $9.99 for the wrench and $12.00 for shipping.
PJ
 
   / Center Nut on the 425 #2  
When I took the training class at Power Trac, they told me to tighten it every 8 hours of use, and grease at the same time. I found that it has moved less as time goes on, but the first few times I got some movement.
 
   / Center Nut on the 425 #3  
We have a local "Surplus City" store that has the 1 13/16 wrench in stock. Just picked one up for $17.32 including the usual donation to the governor.....now the biggest wrench I own! If anyone is interested in obtaining one feel free to PM me and I'll see what it will cost to ship it to you....not trying to make any $$ here just trying to get this wrench to those that need one at a reasonable price. I was waiting to see what EBay would have but seems I'm slow at pulling the trigger at a decent price. It's a combination "drop forged" wrench made by "Thorsen"..although sticker says it's a Mills Fleet Farm? Of course, it's made in Taiwan.
 
   / Center Nut on the 425 #4  
BobRip said:
When I took the training class at Power Trac, they told me to tighten it every 8 hours of use, and grease at the same time. I found that it has moved less as time goes on, but the first few times I got some movement.


Opps ..... will do again this weekend. So once a year don't work....
 
   / Center Nut on the 425 #5  
I checked with my local tool store and a 1 13/16 wrench was pretty pricey and not carried in the cheep brands. There is available (under $20, I don't remember exactly) a box-end wrench in the cheep line that is 46mm, which I was assured will work exactly. They've ordered it and I'll verify their promise once I receive it.

Phil
 
   / Center Nut on the 425 #6  
Phils said:
I checked with my local tool store and a 1 13/16 wrench was pretty pricey and not carried in the cheep brands. There is available (under $20, I don't remember exactly) a box-end wrench in the cheep line that is 46mm, which I was assured will work exactly. They've ordered it and I'll verify their promise once I receive it.

Phil

I have seen them at Northern for around $20. I don't think you are going to be able to break even a cheap wrench of this size.
 
   / Center Nut on the 425 #7  
I think the one I got what would be classified in the "cheap" quality category and it's a pretty heavy/thick wrench. Used it for the first time this week on that nut and it went around almost a full turn after apprx 250 hours. Looks like it will be part of my pre-start check up from now on.
 
   / Center Nut on the 425 #8  
I think many people are missing an important maintenance item by not tightening this every eight hours of use. When it has slop there is a lot more wear in the coupling. When I tighten it I rarely get an eigth of a turn. Probably not an eigth of a turn in the past year. If you got a full turn in a year, then that is more wear than I got in 5 years. Keep this thing tight. You don't want to have to replace that joint. Somebody correct me if I am wrong on this.
 
   / Center Nut on the 425 #9  
Hi all,does anybody know if the center nut on the 422 is the same size as the 425?
 
   / Center Nut on the 425 #10  
The Trogger said:
Hi all,does anybody know if the center nut on the 422 is the same size as the 425?

BobRip has a 422, so apparently they are...
 

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