Watermota proud to introduce new member to the finance team
September 8, 2022
Introducing our apprentice, Zak, in partnership with South Devon Marine Academy
October 20, 2022
Watermota was recently called to attend a land-based Doosan powered generator set that had suffered an event of high temperature without any warning or obvious faults.
The machine had been performing without any issue or coolant loss prior to the event of the fault. Upon arrival at the machine our engineer set about following a test plan to locate the source of the fault, which included on site coolant analysis, coolant circuit pressure testing and inspection and testing of mechanical components within the cooling system. Once the primary tests had been completed, we were able to run the machine, and with the use of thermal testing equipment we were able to witness the performance of the coolant system which lead us to the cause part – a fouled cooling pack which was delivering poor cooling efficiency.
The facilities at the machine’s location did not permit us to carry out the remedial works on the cooling pack on site, so the radiator pack was removed from the genset and recovered to Watermota works for cleaning and testing. Once stripped down with all fan guards and intercooler removed, we could confirm that there was no airflow through more than 75% of the radiator and intercooler.
Following cleaning of the cooling pack, the assembly was reinstalled within the genset enclosure. This work was combined with internal cleaning to ensure any chance of further debris entering the cooling pack was mitigated. The machine was then tested under load and the performance of the cooling system rechecked using thermal testing equipment which recorded a 35°C coolant drop and 40°C charge air temperature drop in 28°C ambient temp.
No new parts were required in the repair and with no repeat of the faults originally found and the machine was signed back to the operator for use.
