Restoring PM disk harrows

BMan2005 · Oct 6, 2019

I got these last year on a trade, a friend wanted my lighter set. Unfortunately I caught a stump with them behind my tractor doing fire breaks and ripped a gang hanger, not cool. Since they were down for repair I致e decided to completely over haul them and make some upgrades to some areas I want to beef up. I will add pictures along the way but so far here is what I致e got, and this is my first time tearing down a set of disk harrows.

Took the gangs off and flipped the disk frame for easier work. You can see the front gang hanger torn here

BMan2005 · Oct 6, 2019

This axles was worked on before by the previous owner and had some clever but not correct engineering done I wanted to fix while torn down. Middle spacer is a pipe cut to length and slip between the spool spacers, and the outside spool spacer was shorter and had the blade spaced 7.5” instead of 9”. You can see the small galvanized pipe cut and used on the end to space the nut on the axle. Bought new correct spools for this axle.

BMan2005 · Oct 6, 2019

Tip, I sprayed all the axle nuts yesterday with PB blaster and again first thing this morning before jumping on removing the nuts after the tip from a friend. Much easier than the first! After disassembling this axle I found out two spools were busted that you couldn’t tell before. Luckily I had the new parts for this one, unfortunately not a new axle. I noticed it had a grove cut so I’ll go pick up an axle tomorrow.

BMan2005 · Oct 6, 2019

2-3 bearings were rough so decided to replace all of them since I’m this far into it. I know I would hate myself to have one go out after putting everything back together. Bought all new bolts and trying to find new u bolts now. Mine are 5/8” I could only find 1/2” in the size I needed. Any suggestions on where to look online?

BMan2005 · Oct 6, 2019

Some of the welds are broke or cracked in the gang hangers also. Going to cut those out, grind clean and flat, then reweld them all. Also going to change up the 3pt mounts too. My hopes is to have a long lasting trouble free set of disk again after this.

3Lfarms · Oct 9, 2019

You are doing it right, so it should be as good as new when you are done. Good job! I love seeing old stuff get fixed up and reused vs just thrown away like everything else these days.

gstrom99 · Oct 23, 2019

Farm and Fleet has a good supply of 5/8" bolts.

DaveOmak · Nov 11, 2019

I buy all my bolts and stuff at Bolt depot ....

U-Bolts - Bolt Depot

Check them out....

BMan2005 · Apr 9, 2020

Hey guys, stepped away from this project for awhile getting settled in on the new farm and just had to prioritize my time elsewhere. We got hit by a tornado and took my 20x20 metal building I used as my welding area with it so I’ve ran power to a metal container shop and doing all my metal work there until I get the new shop finished. It sucks, but is what it is, could have been a lot worse. But, I got all new bearings, axles, replaced what spacers needed it on the disk, and completely rewelded the braces on the gang hangers just yesterday. Now to make a few changes on the frame for 3pt hookup and prep it all for paint.