Komatsu PC55-mr2 Digger , Mini Digger , Excavator 5.5 Tonne

Komatsu PC55-mr2. Condition is "Used". Digger mini digger excavator The cab was removed on import and never put back together properly I was told it’s a 2007 I have the original vin plate (removed for import) It works and can be used as I have every day all day for the last week. I’ve moved and levelled 120 tonne with it. It comes with a 600mm bucket It has a intermittent fault where the slew and dozer plate both won’t work until the digger is warm ( no more that 5 mins running) And it bogs down under load and stalls occasionally, but always fires back up.

I’m sure it’s something simple, I have had all fuel lines changed/ filters and hydraulic filter. I’m no mechanic and want something I don’t need to work on as it cost me, this would suit someone with the knowledge of diggers and mechanics. Fuel cap missing, ac, heater and work lights not connected Suffers blow by. I have been told it may simply be a sensor! No vat I’d rather sell and buy one without the issues Serious buyers only phone