From the cause and effect diagram shown above , it
could be concluded that the root cause of problem
come from :
1. Low flow rate of cooling water inside
intercooler,this is due to foreign matter
stucked on strainer & no maintenance on
strainer due to limited access.
2. Poor contact between cooling water &
intercooler due to poor quality of water
3. Delay on periodic cleaning of intercooler due
to unavailable method to predict
inspection,cleaning and replacement period
4. Lack of knowledge to predict
inspection,cleaning & replacement period