Thread: CAT 12H Coolant issue

ONGOING.
Grader has been parked for 3 months,mix of the ongoing issue and shortage of staff.
We have just started to use the 12H again,training a new operator.CAT sent 5lts of a cooling system cleaner,basically an acid.It gets left in the cooling system for 30 days,you then drop the coolant and then put the correct CAT OAT coolant back in.We only just added it this week.
Can check tommorow for the correct name/part no of the cooling system flush.
Andrew

Originally Posted by LandyAndy

ONGOING.
Grader has been parked for 3 months,mix of the ongoing issue and shortage of staff.
We have just started to use the 12H again,training a new operator.CAT sent 5lts of a cooling system cleaner,basically an acid.It gets left in the cooling system for 30 days,you then drop the coolant and then put the correct CAT OAT coolant back in.We only just added it this week.
Can check tommorow for the correct name/part no of the cooling system flush.
Andrew

Probably either Cat # 6V4511 or 4C4611.
Need to make sure you get it fully flushed out otherwise it will kill the fresh coolant.
Drain it when stone cold and chase with fresh water, fill with fresh, run, cool, drain, chase, chase, chase and don't forget to chase, fill with ELC while block is still cold and wet inside.
Worthwhile pulling the stat before all the flushing too.


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