I ask the question has anyone had a simmilar problem, because the fix was some what simple, finding it was the problem.
The fault code AD10L3 relates to low pressure side of the fuel system. This problem has occured on two WA480-5 machines which we look after, the first machine the customer called out Komatsu field service.
After a few Weeks and a new high pressure pump, limiter valve and last the injectors were to be replaced,(lots of $) then the floods hit, which stopped things.
By this time both machines had the same problem, loss of power even cutting out, after the floods we looked at the machines, to clean them up.
The problem was still there, I checked everything I could on the fuel system, so I thought, the problem cleared for a few days, then back it came.
I asked my son to have a look for the fault. Telling him to start a the begining and go through fault finding. After a while he said I think I've found the problem! There was a blockage in the pipe from the tank to the screen, in the banjo fitting. This was cleaned out, the machine ran fine for a few days then the problem returned, again the fitting was blocked. I drained the fuel tank took off the quick fill so I could see into the tank, it looked clean (very clean) then I noticed the float from the fuel level gauge at the bottom of the tank, I removed the float, there was a film of plastic around the float which was peeling off by hitting the tank sides during operation of the machine, after removing the float, no more fault. We check the other WA480-5 with the same problem and again the float was the cause. I wonder how many other machines have the same problem.
Thanks, I hope this information will help someone
