如何检修 MAN K98 柴油机(内部培训教材).

1、Fuel Leakages and Fire Hazard (MAN K98 MCC) 1. Overhaul ME Fuel Oil Pipe 2. Overhaul ME FO Injectors 3. ME FO Injection pump shock absorber 4. Fleet-Instruction: FI-MA-01-2012 When ME FO injection pipes need to be overhauled? How to check ME FO Pipe? Carefully clean both ends of High-Pressure pipe i

2、n clean diesel oil. Checked the tapered contact surface of the pipe end, together with their seat in Fuel valve and top cover. Position of thrust bushing on the pipe end must be checked, by screw the thrust bushing up or down the pressure pipe, add molycote on thread. If found any of the pipe ends h

3、ave cut marks or slight damages, pls use milling tool to recondition. How to Check Distance D09-51? How to Remount FO pipe? Key points need to checked before pipe remounting: Distance D09-51 must be checked, Tapered surface must be checked, Union nipple must be tightened by hand until thread is scre

4、wed into position, Use cowfoot wrench and torque spanner to tighten the union nipples on both pipe ends to the specified torque (ref DATA, normally 300Nm), Tighten hose nut lightly to union nipples by hook spanner. Use Cowfoot wrench and torque spanner to tighten FO pipe. What will happen if not fol

5、low the correct procedure? SOLAS Ch-II-2/9-12 Mandatory requirement from 01 July 2003 Doubl wall screened FO pipeAnti-spray tape and leaks tube Fuel leaks alarm switch ME FO Drain pipe system with leakage alarm Some of vessel installed with 2sets leakage alarm in way of fore and aft of main engine,

6、but at least 1set must be installed. Main engine Fuel Injector Maintenance Key Point Make good record of maintenance history of all fuel injectors. Slide type fuel injectors not allowed to do atomization test. After remove fuel injectors from ME, the valve need to be pressure tested or overhauled im

7、mediately. Whenever fuel valve removed, before remounting fuel valve, grind the fuel valve pocket seating and check carefully that the setting is not damaged. Fuel valve packet seating damaged and fuel valve landing surface blow by, fuel valve was very difficult to be removed. Inspection and maintenance of Pump sh