11 ，Turbo blower maintenance during operation and check to be made during maintenance Important points for turbo charger maintenance透平的日常维护检查
Gas casing scaling and corrosion
Water treatment is essential
Rotor unbalance due to improper cleaning of the air side as well as turbine side wheels
Air side impeller usually have a film of oil on the aluminum surface
Gas side in service cleaning necessary to prevent deposits from combustion products
Improper cleaning of air side or turbine side could result in rotor unbalance and subsequent operational problems
Bearings and gear pumps should be repaired at intervals specified by maker
12， Daily routine checks required on steering gear system.舵机的日常检查
* Oil quantity in the oil tank within range of level gauge
*Oil temperature
*Pressures of hydraulic cylinders comparing with normal data
* Abnormal noises and vibration from moving parts and motor couplings
* Oil leakages from tank cylinder valves ram packing and pipe joints
* Abnormal overheating of cylinder stuffing box and glands motor ampler
13， Immediate action/causes of abnormal related to steering gear system.舵机异常延滞应急措施/原因
* Rudder does not respond
* Trouble of auto pilot control
* Control the steering gear by the trick wheel in the steering gear room
* Failure in buffer spring levels and pins
* Continue the operation by changing to stand by pump unit after removing the broken part
* Trouble with hydraulic pump (including link mechanism)
* Check the link mechanism (coupling) and electrical power to the pump
* Lightly press the pump suction valve and check for oil suction
* Trouble or abnormal operation of valves
* Obstacles around the tiller and ram
Rudder rate of turning speed low
Slow auto pilot ordering
Trouble and abnormal operation of valves
External oil leakage
14 ，If main engine turbocharger out of operation due to rotor blade damage as a chief engineer what will be your plan and advise to all engineer to resume sea passage ASAP?主机透平叶片损坏应急措施及建议
-If main engine one unit out of operation due to fuel pump roller guide damage (no spare part on board) what precaution will you take and your plan to resume passage with one unit cut off.
-what do mean by balanced engine ( If peak pressure different ) what will be affect on engine
- If one unit peak pressure high compare to other unit what will be your action to balance the engine
- How you will adjust fuel pump timing for scroll type fuel pump?
- If timing advance or retarded what will be affect on engine exhaust temperature and peak pressure?
15， Pilot on board engine can not start from control room. As a chief engineer what will be your first action of plan.
change to local control, and then start for test.
16,If can not start engine from engine local side what is your plan of action to start engine ?
start for test, and find the alarm--engine's trouble, repair it.
17- What are you going to check in engine maneuvering system?
first, check each part of the maneuvering system, no leakage.
and then start the engine from local、engine room、bridge for test.
18,Before taking bunker what will your plan as a chief engineer?
*make the bunkering plan
*no more than 85% of every tank.
*no mixing of oil.
*bunkering sequence of tanks.
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