These photos show the repair work to my B6000 front axle.
The king pins and axle bushes were worn out. To make matters worse the king pins had been rotating in the hubs and the hubs were ovalled. Prior to the rebuild there was a huge amount of free play and, because of that, the hub sealing system was completely ineffective.
In this picture you can see the brass insert repair in the hub and the new upper king pin and axle bush. All parts were fabricated from scratch. Both hubs required brass inserts so there are four inserts in total.
The king pins and bushes are CNC machined to Kubota tolerances from SCM440 which is a hardened and tempered high tensile steel. They were then hard chrome plated.
This picture shows an upper and lower king pin and the locking plate for a lower king pin. The locking plate has been made to precise dimensions to ensure that there is no rotational or up and down movement of the king pin.
This picture shows one of the brass inserts with the king pin removed.
I am delighted with the quality of the work. I now have perfectly smooth rotation of the hubs and no free play in any plane. Thankyou to Khun Somboon at S.Y.S. Precision Co. Ltd., Bangkok for this excellent work.
The total cost of the repair work including fabricating four king pins, eight bushes and drilling out a sheared off steering lock stop bolt was 7,500 Baht.
At today's exchange rate that is US$244.
If I had bought the parts from Kubota the four king pins alone would have cost US$325!
Tomorrow I am going to get the gaskets made to enable completion of the work.
The king pins and axle bushes were worn out. To make matters worse the king pins had been rotating in the hubs and the hubs were ovalled. Prior to the rebuild there was a huge amount of free play and, because of that, the hub sealing system was completely ineffective.
In this picture you can see the brass insert repair in the hub and the new upper king pin and axle bush. All parts were fabricated from scratch. Both hubs required brass inserts so there are four inserts in total.
The king pins and bushes are CNC machined to Kubota tolerances from SCM440 which is a hardened and tempered high tensile steel. They were then hard chrome plated.
This picture shows an upper and lower king pin and the locking plate for a lower king pin. The locking plate has been made to precise dimensions to ensure that there is no rotational or up and down movement of the king pin.
This picture shows one of the brass inserts with the king pin removed.
I am delighted with the quality of the work. I now have perfectly smooth rotation of the hubs and no free play in any plane. Thankyou to Khun Somboon at S.Y.S. Precision Co. Ltd., Bangkok for this excellent work.
The total cost of the repair work including fabricating four king pins, eight bushes and drilling out a sheared off steering lock stop bolt was 7,500 Baht.
At today's exchange rate that is US$244.
If I had bought the parts from Kubota the four king pins alone would have cost US$325!
Tomorrow I am going to get the gaskets made to enable completion of the work.