Front Axle Support Assy.

[Langus]

Well....today our sand blasting was rained out after just getting setup. We will try again tomorrow.

So, while it was raining outside we decided to tackle some issues that have been sittin on the shelf. The front of the front axle support where the pin slides through, the single bolt in the pin was broke off. While trying to remove the broken bolt, the small plate under the pin came loose. I can find this section in any of the parts breakdowns or online. I have attached a pic of this part in my vise. It did have 3 small tack welds holding it to the main assy but they looked very weak and poorly done. Not to mention, I was able to break all 3 just trying to remove the broken bolt.
Is this part originally part of the main assy or was it added? I have attached a pic of the main axle assy with the small plate removed from the front of it. Do I need to clean up the welds and re-weld it back in place? Thanks for the help!


 

[John(UK)]

There have been more than one type of pin and bolt that secures it. Get the correct Pin for your axle and then get then correct bolt to match. Any welds would have been done afterward and not when new. The Pin should never move in the Axle Carrier, if it does it is being held by the bolt and all the load will be on that which is not good. All the bolt is supposed to do in prevent then Pin from sliding out. So the hole in the carrier needs to be perfectly round to fit the pin and the bolt should screw in easily, some have a nut to secure it others screw into the axle carrier. If the Pin is worn it will really be twisting the Pin and it will put the axle out of true and make steering heavy and bend the Radius Rods if it is really bad. The axle originally had a thin steel Bush and then later they used a thicker steel bush with a collar, this was much heavier, you could use two of these bushes in the axle and that supported it much better. The bush with the collar will not fit the original axle Beam that had the this steel Bush originally, you would need to change the centre axle beam for that...John(UK)...fergusontractors@hotmail.com
 

[Langus]

John
Thank you for the response. We did get the old pin out. The first picture is of a plate that was between the pin and the axle carrier. It had 3 tack welds on it and they broke when removing the pin from the axle housing. The pin slid through the first picture and all of that set in the indent in the axle housing. Thoughts?
 

[John(UK)]

The Pin MUST be a good fit in the holes in the Axle Carrier or it will be moving and throw some load onto the bolt that holds the pin into the Carrier. The holes for the pins will need building up and boring out again/ or find another axle carrier/ The welded plate does not need to be there, there is nothing complicated about the Pin mounting and it is just straight forward. Make sure that the pin cannot move in the axle carrier or it will wear the holes and gradually get worse and it will load up the securing bolt which will break and the pin will then come out and the tractor will drop and the front end and damage the Radiator and the Hood. You could weld some plates to reinforce the Carrier at the main pin holes, fit these on the inside of the carrier if you have room. Bore out these plates the same size as your new Pivot Pin, the loading will now be taken on the plates rather than on a worn axle carrier and you can bore the plates the correct size for the pin. Just be aware when fitting the plates that the center axle beam does not catch the plates when it is all assembled with the Radius Rods attached, it maybe that the plate you attach to the rear of the carrier may need to be thinner to give the necessary clearance. Don't lubricate the pin and bush with oil or grease, if you must use something then use graphite powder. If you would like the parts list that shows the different pins and Bushes, just ask by emailing me at the address below. If you can fit the heavier Bushes they would be better but if you have the old axle then you will have to fit the thin wall bush again.The heavy Bush will not fit into an axle beam that was originally fitted with the Thin Wall type as the hole in the Beam is smaller. While you are carrying out this work, remove the King Pins from the axle extensions and check the thrust bearing at the bottom of the King Pins as they are often running dry and are badly worn, this causes heavy steering.Ask if you need any more info
John(UK)..fergusontractors@hotmail.com