Komatsu Pc12r Mini Digger

Komatsu Pc12r Mini Digger. This is a 2000 model which I have owned since it was 2/3 years old. I recently did a self build but the machine developed an issue towards the end where it seems to build up hydraulic pressure to the point the engine starts to overheat before stalling. The pressure can be relieved by tracking back and forth but just builds up again. It has had a new pump fairly recently and the rad reconditioned.

The machine starts and operates but not for long before the problem occurs. There is plenty of play and needs bushes and pins but comes with 5 buckets. I do not really understand how these machines work so may be an easy fix! This is collection only within 7 days of auction end. I do not have any means of transporting the machine.

Happy for inspection prior to auction end, oh treble seven oh seven 66 oh three oh