Oldboy
Well-Known Member
Hello, we have acquired a used Komatsu as per below:
WA480-5H 2002 year
27,000 hours
no available service or component history
Problem: the transmission is fitted with a very very fine gauze filter which blocks up and prevents the machine from driving. When filter is replaced ($500 a go) it lasts about 10 hours and blocks again.
If you remove it, it runs perfectly.
We have had trans oil analysis done and it comes back clear. Changed the oil and filters, same result.
Put an old filter in some phosphoric acid and it fizzes. The filter and the material that blocks it is so fine you cant actuall get a sample out of it.
We suspect this may have been a long term issue with the previous owners, judging by the amout of wear on the related filter housing threads.
It had worked in a quarry.
Any suggestions about the next move would be appreciated.
thanks Michael.
WA480-5H 2002 year
27,000 hours
no available service or component history
Problem: the transmission is fitted with a very very fine gauze filter which blocks up and prevents the machine from driving. When filter is replaced ($500 a go) it lasts about 10 hours and blocks again.
If you remove it, it runs perfectly.
We have had trans oil analysis done and it comes back clear. Changed the oil and filters, same result.
Put an old filter in some phosphoric acid and it fizzes. The filter and the material that blocks it is so fine you cant actuall get a sample out of it.
We suspect this may have been a long term issue with the previous owners, judging by the amout of wear on the related filter housing threads.
It had worked in a quarry.
Any suggestions about the next move would be appreciated.
thanks Michael.