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Marine Auxiliary Machinery

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Marine Auxiliary Machinery Chapter 8 Lesson 9 Spare Parts Learning objectives Learning objectives learn the different levels of spare parts. Maintenance on Board (1 ... – PowerPoint PPT presentation

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Title: Marine Auxiliary Machinery


1
Marine Auxiliary Machinery
  • Chapter 8 Lesson 9
  • Spare Parts

2
Learning objectives
  • Learning objectives
  • learn the different levels of spare parts.

3
Maintenance on Board (1)
  • Use of correct spare parts is essential for
    trouble free operation of the steering gear.
  • It is very difficult or impossible to predict the
    exact life of a part exposed to wear, or age.
  • What parts that are to be kept on board depend on
    what level of safety the ship operator wants.

4
Maintenance on Board (2)
  • The safety policy can be divided into three
    readiness levels
  • 1 Basic level
  • This level meets the minimum class requirement.
  • 2 Essential spare parts
  • Essential spare parts are classed as follows
    Every part exposed to wear or ageing and for
    which a defect may cause critical failure.
    (Critical failure steering gear partly or
    complete out of function ).

5
Maintenance on Board (3)
  • 3 Makers recommendations
  • Keeping all essential and necessary parts on
    board to perform planned maintenance and keep
    off-hire to a minimum.
  • By the use of makers experience and knowing which
    level of safety the owner wants, the makers
    should always be able to supply a suitable
    package of spares. For older steering gears (more
    than 15-20years of age ) every part should be
    taken into consideration because of a possible
    long delivery time.

6
Assessment Tests
  • Question 1 of 3
  • Which of the parts mentioned below are normally
    not exposed to wear or ageing?
  • A) Static rubber seals
  • B) Relays and sensors
  • C) Cast iron sealing bars
  • D) I don't know.

7
Assessment Tests
  • Question 2 of 3
  • Which of the statements below belongs to
    porsgrunn spare parts policy?
  • A) Essential spare parts are to be kept on
    stock.
  • B) All spare parts are to be kept on stock.
  • C) No spare parts for steering gears older than
    30 years.
  • D) I don't know.

8
Assessment Tests
  • Question 3 of 3
  • Which of the factors do you believe will not
    affect the lifetime of the brass bearings in the
    actuator
  • A) Rudder arrangement and alignment of rudder
    stock from the steering gear installation.
  • B) Pureness of the oil..
  • C) No spare parts for steering gears older than
    30 years.
  • D) I don't know.
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