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24/06/2024

The main engine does not start. Troubleshooting

Greetings! Today we have a problem with starting the main engine; the engine cannot be started with air by the telegraph command “Forward” and setting a certain speed (the telegraph and the speed controller are not one common device here).

The main engine does not start. Troubleshooting

In the article we will find out what the problem is and what you should pay attention to during routine maintenance of the main engine control unit.

07/06/2024

Low insulation 440V and refrigeration chambers on a ship

Greetings! Low insulation 440V has appeared, but this time it is difficult to detect because insulation appears for a short time and disappears. After two days of observations, it turned out that low insulation comes out twice a day, usually at lunchtime and at night.

Low insulation 440V and refrigeration chambers on a ship
Low insulation 440V and refrigeration chambers on a ship

We also noticed that when low insulation 440V comes out, the temperature of the meat refrigeration (freezer) chamber goes to INHIB in the alarm monitoring system in the ECR. 

31/05/2024

Start Fail. The fire pump does not start. Troubleshooting

Greetings! Today our fire pump does not start; the “Start Fail” signal is displayed on the motor controller. The Reset button does not reset the error.

Start Fail. The fire pump does not start. Troubleshooting

We open the starter panel, open the fire pump start-up and operation circuit, and look for the “Start Fail” signal. The motor controller produces this signal in many cases.

30/05/2024

ERMA First BWTS. Simple instructions for using a ballast system

This instruction may differ in some nuances of operation specifically for your vessel, but in general it is suitable for most vessels. The ERMA First ballast system operates automatically, but still requires the attention of the operator and, in some cases, an engineer.

ERMA First BWTS. Simple instructions for using a ballast installation

Important! This article is not detailed instructions for working with ERMA First BWTS; it describes the main points and some nuances. To fully familiarize yourself with the system, read the official instructions and watch the official video. It should also be said that this article is aimed at operators and engineers (ETOs) who already have some knowledge and understanding of working with the system.

28/05/2024

Low insulation 440V. First actions of the ETO

Greetings! Today we will analyze the sequence of actions of an electrician when finding the source of low 440V insulation on the vessel. In the previous article we looked at the first actions of the ETO when searching for low insulation 220V, I recommend reading that article first, because it is more detailed. And the search methods are not much different, but there are nuances.

Low insulation 440V. First actions of the ETO

Finding low 440V insulation on a vessel involves tripping the circuit breakers one at a time, starting with the non-critical consumers. 

It may happen that the reason for low insulation is immediately known, because a 440V high pressure machine was started on the deck and perhaps it was flooded with water. But it happens that you cannot find the source on the first try.

Low insulation 220V. First actions of the ETO

Greetings! In this article we will analyze the first actions of the ETO when low 220V insulation occurs on a ship. How to find the source of low insulation and what steps to do in such situation.

Low insulation 220V
Low insulation 220V

On a vessel it is very important to pay special attention to this, because by promptly eliminating low insulation, you can prevent dangerous smoke or even fire.

24/05/2024

Low voltage 220V. Incinerator does not work. Troubleshooting

Greetings! Today we have a problem with the waste oil incinerator. When starting the incinerator, the touch panel displays the error “Low voltage 220V”. The incinerator is not working. What kind of error is this and how to fix it, we will try to figure it out in the article.

Incinerator control panel
Incinerator control panel

We turn to the instruction manual and see that the “Low voltage 220V” error is associated with a low voltage of 220V in the control circuit. 

20/05/2024

Work of an ETO on ships with cranes. What most often breaks on cargo cranes?

Greetings! In this article, we will look at general issues related to the work of an ETO on ships with cranes.

Work of an ETO on ships with cranes. What most often fails on cargo cranes?

Recently, the number of ships with cargo cranes in the world merchant fleet has been increasing, so this article will be of interest primarily to ETOs who are just starting to work on such vessels.

A cargo ship performs, among other things, two important tasks - unloading, loading and transporting cargo. All these tasks involve an ETO, who is assigned more of a repair role than an operation one.

Temperature controller. Replacing and adjusting the temperature controller on a cargo crane

Greetings! In this article we will change the temperature controller of a cargo crane. It has failed and for this reason the crane hydraulic protection system based on oil temperature does not work.

Temperature controller. Replacing and adjusting the temperature controller on a cargo crane

The temperature controller (PID controller) on the crane, together with the PT100 RTD (Resistance Temperature Detector) sensor, are key elements in protecting the crane hydraulics from oil overheating. 

16/05/2024

The crane jib is luffing down under its own weight. Troubleshooting

Greetings! Another problem occurred on the cargo crane; its jib is slowly going down without affecting the manipulator (joystick). More precisely, the crane boom is lowered down and stopped, but by inertia it continues to go down without operator action under its own weight.

The crane jib is luffing down under its own weight. Troubleshooting

This problem can lead to significant damage and therefore requires immediate elimination. In the previous article, we looked at a situation where the crane hook was slow to move (abnormal speed of the crane) when operating on the corresponding joystick.