L2017-649/JNN Checking and cleaning of condensate drain trap in charge air drain system

The amount of condensate water during operation may be considerable, and must be given special attention when operating in areas with
high humidity as well as under tropical conditions. For estimation of the condensate amount in relation to the actual operation condition, we
refer to our attached descriptions 502.05 and 602.05.

We have recently received feedback from engine operators regarding malfunction of the condensate drain trap in the charge air drain system.
The main cause of the observed malfunction is sludge and dirt accumulating in the condensate drain trap and hampering its function.
If the charge air condensate drain system fails, the condensate water will accumulate in the charge air system with the risk of carryover of
water droplets to the cylinder liner wall.

Water on the liner surface will destroy the oil film and cause increased wear, or even scuffing, on the liner and piston rings, eventually resulting in reduced time between overhaul or risk of engine breakdown.