[Sirrotica]

Rear steer axle kingpin on a Gradall 534 B reach boom forklift had a similar issue. The pin would wear through the bushing (bronze) and the start wearing into the steer axle making an elongated hole that you couldn't replace the standard bushing in.

The repair was an oversized steel sleeve that used the same diameter bushing in it as original.

The axle was cut out with a torch roughly and then using an air grinder with a burr fit into the steer axle assembled and then tacked the oversize sleeve in place. Then disassembled and final welded into place. We had a bunch of rental machines that we did this repair to because of course they were never greased by the contractors daily.

The replacement part did use a longer pin and bushing so it had more bearing surface to slow the wear. If the machine was greased at the beginning of each shift there was no wear problem. Going weeks without grease made a huge repair problem for us road service mechanics. The repair took 2 guys about a day and a half/12 hours, total.