Service Provided To M/V Grasmere 2010

Engine No: 3682
Model: Hitachi MAN Type 6L35MC Mk6.
Use: Main propulsion engine.
Speed: 170
Power: 4252 BHP
Fuel: heavy fuel oil.
2-Persons involved:
InServ staff.
3-Client’s initial request:
Disassembly main engine charge air cooler, cleaning, pressure test, and reassembly.

4-Work Description:
This service was started on april.05.2010 as per client request to dismantling main engine charge air cooler to do chemical cleaning, inspection and pressure test.
A- Main Engine Charge Air Cooler.
This air cooler was dismantled, inspected, painted and cleaned externally and internally.
Air cooler element was removed for chemical cleaning of sea water and air sides. Size 1.23m x 0.6m x 0.83m approx dry weight .75Tonne. Cooler was pressure tested on presence Owner's representative Shief Engineer, was returned and refitted using new gaskets. Had 4 tubes plugged with wood plugs,Were replaced 8 wood plugs and installed Nylon Plugs. Were reconditioned the back cover division line hole threads (Two).
Dismounted and mounted sea water pipes end covers were cleaned and painted with Apexior paint. Zinc anodes were cleaned.

B- Charge air cooler housing: Done maintenance it was removed a lot of scrap metal (rust metalic), more than 10 Kg were removed and internal housing was painted.