3.4 ALFA-LAVAL Separator MAPX 207S-20 general information 3.4.1 MAPX information Contents – Correct installation, suitable treatment of the liquid before and after the passage through the machine, – correct operation and handling of the machine according to the directions given in instruction book, – cleanliness, carefulness and methodical overhaul are factors of the greatest importance for ensuring the best machine function and intended results

3.3 Batch and continuous lubricating systems For small or medium units without a circulatory lubricating system, the oil is often treated on the batch system. As large a quantity of oil as possible is drained from the engine at intervals and run into a heating tank, the system being replenished with clean oil at the same time

3.2 Treatment of detergent type lubricating oils The main function of detergent lubricating oil is to keep solid contaminations in suspension and prevent both their agglomeration and deposition in the engine. This function reduces ring sticking, wears of piston rings and cylinder liners, and generally improves the cleanliness of the engine. agglomeration

The main objective of this section is to make you acquainted with the relevance of fuel parameters on: Abnormal ignition and combustion. Wear, piston ring collapse and breakage. Gas leakage. Ignition, combustion and exhaust gas emission. Engine damages and operational problems. Prevention of engine damages with off spec. fuels and to recognize their impact on the operation of marine diesel engines

Learning Objectives The main objectives of this section are to make all engineers familiar with: Pre-treatment of marine fuels. Design criteria, or problems related to settling and service tanks. Draining of settling tanks. Preheating. Separation, purifier and clarifier. Sludge and sludge handling

Learning Objectives The learning objectives of this section are to make all engineers, engine cadets and other crew members who are involved in the handling of fuels onboard, familiar with: – How to handle the fuel. – Take the necessary simple precautions by following test procedures

Learning Objectives When you have completed this section, you should be familiar with: Pre-bunkering checking. Guidelines for bunkering of fuels. Health precautions

Open systems using gravity tanks, etc., are rarely met nowadays and Figure 1.8 shows a characteristic arrangement of pressure tanks, calorifiers and pumps for a large ship. The fresh water pumps are self-priming, drawing from storage tanks and discharging through filters to a rising main, branched to give a cold supply and a hot supply in closed circuit through a calorifier. A tank kept under pressure by an external supply of compressed air rests on the system and provides the head necessary

Oil fuel transfer arrangements provide for receiving stations at an upper deck level, port and starboard, furnished with valves, elbows, pressure gauges, filters and relief valves

A fire and bilge pump has suctions from sea, bilge main and engine room bilge, with discharges to fire main, oily water separator and overboard. A ballast pump has suctions from sea, ballast main, engine room , bilge direct and bilge main with discharges to overboard, the ballast main, the oily water separator and possibly, the main salt water circulating system