ICGSMA Bulletin - Indian Coast Guard

ICGSMA BULLETIN (JAN - MAR 13)
The thyristors themselves were found good.
However, while the ship has changed the
controller PCB and the three thyristors in
the starting circuit (as a precautionary
measure), the AC continues to trip after the
starting cycle is complete. AC is presently
being exploited in Direct Online starter
mode pending further analysis of defect on
soft starter by the OEM.
(c) The stabiliser of the ship has a
unique problem, its port stabiliser does not
start from local position and the
starboard stabiliser does not start from
remote location. Once started the
system performance is more than
satisfactory.
3. To give credit to our training
methodologies, I do find that the average
Yantrik /Navik after his basic training is
reasonably equipped to arrive at the least
denominator of maintenance on the
sophisticated equipment being inducted.
What I mean by the least denominator of
training is the level to which he himself can
apply methods taught to him at school. But, I
will add a caveat here that the comfort that
every maintainer settles into of being super
operator/reset maintainer has to be avoided
as also the urge to strait jacket every defect
into the parameters of a previous defect
experience.
sometimes fail to explain what role each
component in the sub system is performing.
Secondly, circuit descriptions are not provided to
explain the logic of implementing a design
philosophy. In such a scenario there is no escape
for continued dependence on OEM based training
on each system prior commissioning of a ship.
But this training has a shelf life. Once the
trained personnel are not associated with the
project or are posted out of the ship after their
tenure resulting in the expertise vanishing with
them. The subsequent commissions suffer from
COMMON PAINT DEFECTS AND REMEDIES
(DO YOU KNOW?)
Many problems can occur after painting. Sometimes,
they occur simultaneously during painting.
Understanding the causes of some of these defects can
make the paint job easier. Here are some common paint
defects and their solutions:
BLISTERING - Blistering or Swelling of paint is caused
due to the trapping of air, moisture or solvent between
the surface and the paint film.
SOLUTION - Remove any unstable paint films and
allow the wall to dry thoroughly. Then repaint with a
recommended paint. Avoid painting under direct
sunlight.
4. The maintainer of a system is capable of
handling the systems only when he knows the
complexity of the system which is not provided
in abinitio training. Basic training is more broad
based and is not system specific. There goes an
argument that the system training can be gleaned
from manuals and documents provided it.
However, there are two issues that have made this
argument unsustainable, firstly the manuals are
not as comprehensive as they used to be and
lack of any exposure to the system and are wholly
dependent on the available documentation which
is not necessarily comprehensive.
5. PRE-COMMISSION TRAINING: In the Indian Navy
there is a concept of Pre-Commission Training
An insight to trouble shooters 2