Friends – Activity – icedcappucino

cat60y replied to the topic Jacket water test and treatment in the forum Fuel Oil, Lub Oil and Water Treatment 5 years, 4 months ago

Understood from the above that Evaporated seawater meaning our distilled water generated from fresh water generator.

Ive only know of 2 chemical suppliers, DREW MARINE & UNITOR

For Unitor, jacket water treatment are using Natfleet to increase Nitrate levels. Nitrate levels are best kept above 1200.

cat60y started the topic Fuel oil analysis in the forum Fuel Oil, Lub Oil and Water Treatment 5 years, 4 months ago

What are the important components to read off the fuel oil analysis chart?

Typically fuel oil analysis are required before using of the fuel oil for the engines, samples will be sent to lab for testing. examples of laboratories( Maritec or viswa lab )

Purpose for fuel oil anaylsis is to adhere to the marpol annex 6, and ensure that proper and…[Read more]

cat60y started the topic 2 stroke VS 4 stroke engine in the forum Main & Aux Engine 5 years, 4 months ago

Let us discuss the differences between 2 vs 4 stroke base on understanding.

2 Stroke engines
– Power, Slow speed. Used for vessel main engine.
– Every 2 stroke of piston movement there is 1 power stroke. ( UP(compression stroke), DOWN(exhaust+ power stroke) )
– 1 exhaust valve
– suction from scavenging ports instead of suction valve.

4 Stroke…[Read more]

Admin replied to the topic Content Page for drawings & diagrams in the forum Drawings 5 years, 5 months ago

Dear colleagues and friends, If you have better or clearer drawings, do post them up as well.

cat60y replied to the topic Air reducer regulator ( control & service air ) in the forum Main Air Compressor 5 years, 5 months ago

If found faulty, some may want to replaced as a whole provided there is a spare.

If not if taking out for cleaning for routine maintenance, cleaning the piston(25), check the condition of the gasket on the valve disk(10).
Make a marking on the body before dismantling, as the center body consists of 2 different holes passage, 1 from inlet to the…[Read more]

Admin started the topic Air reducer regulator ( control & service air ) in the forum Main Air Compressor 5 years, 5 months ago

We often see this piston type of air reducer onboard for control and service air. Main purpose is to reduce air bottle pressure of around 30 bar to control air, regulating it at 7 bar, or for service air 5 bar.

Maintenance normally is best done at Port if not at Sea by opening the sharing valve between the Control air line and Service air to…[Read more]

cat60y started the topic Troubleshooting 3 phase motor, Meggatesting in the forum Electrotech 5 years, 5 months ago

Troubleshooting 3 phase motor

Test can be done through mega tester or a multi meter. There are 2 common test that are carried out on the motor during routine maintenance or suspected motor fault.

1) Low insulation test
This is to make sure that neither of the 3 phases wiring are touching the body of the motor which will result in 440V low…[Read more]

cat60y replied to the topic 4 Ram Steering Gear in the forum Drawings 5 years, 5 months ago

Isolating valves

In the case of leakage area as shown above, Low low level alarm will be activated. When the alarm is activated, Both isolating valve will be activated & No.1 Lo pump will be switched over to No.2 pump.

4 Rams system work in a Pair. Thus when #4 Ram pipe is leaking, #3 & #4 ram is then isolated.

Through Lo #2 pump and only…[Read more]

cat60y replied to the topic 4 Ram Steering Gear in the forum Drawings 5 years, 5 months ago

Unloader

From the above Unloader, the left box is when the steering is in operation and the left is for unloading.

The left box consist of 2 check valves, when in operation, the left check valve opens and prevents the return of the oil, and the right check one for the returned oil is opened by the left line, thus allowing the flow back.

Relief valve

Relief valve…[Read more]

Admin started the topic Main Air Compresser & Unloader in the forum icedcappucino 5 years, 5 months ago

Admin started the topic Stern Tube Seal in the forum icedcappucino 5 years, 5 months ago

cat60y replied to the topic 4 Ram Steering Gear in the forum Drawings 5 years, 5 months ago

Operations of 4 Ram Steering gear

1)Steering gear pump is uni directional. During idle mode, there are no pumping stroke.
2)When torque motor sense signal from bridge, the directional control valve will operate to the direction by bridge and pump will be put to stroke.
3)After 10-20sec of starting, the unloading device will activate and pilot…[Read more]

Admin started the topic Rotary Vane Steering Gear in the forum Drawings 5 years, 5 months ago

Moonraker started the topic ETF ( Exchange Traded Fund) in the forum Money Matters 5 years, 5 months ago

Previously I’ve posted on REITS, these are mainly passive, giving us dividends and does not give us a huge capital gains over time as compared to Stocks.

Stocks which give us high capital gains over time are call growth stocks, these companies do not give dividends because they are focused on R&D, putting their profits back to growing their…[Read more]

Moonraker started the topic REITS ( Real Estate Investment Trust ) in the forum Money Matters 5 years, 5 months ago

Many times we speak to our crew mates from countries like South East Asia or South Asia, you’ll hear them talking about acquiring lands, and building houses. This is not applicable to the sg grounds. We are not talking about purchasing condos or private properties because a typical sgseafarer cant afford it yet. So the nearest we have to being a…[Read more]

cat60y replied to the topic Third Engineer takeover checklist in the forum Promotional criteria, interview & taking over checklist 5 years, 5 months ago

Performance

1) Taken once a month, to check all is well, Pmax and Pcom is normal range, no abnormalities.
2) Normally i would take performance when changing over. For example this week AE #1 and im changing over to AE#2, i will take both performance at ~85% load. Depend on your company requirement.
3) Next week, when i’m changing from Ae#2 to…[Read more]

cat60y replied to the topic Third Engineer takeover checklist in the forum Promotional criteria, interview & taking over checklist 5 years, 5 months ago

Routine job for 3e

Tappet clearances
1) 2 rounds of your Flywheel is complete cycle of your 4- stroke generator, so for you to finish your tappet you just need to turn 2 rounds. Each round 3 units to adjust.
2) flywheel got 3 locations and marking; 1/6, 2/5, 3/4. 1st round of turning flywheel ( adjust the unit which both exhaust and suction…[Read more]

cat60y replied to the topic Third Engineer takeover checklist in the forum Promotional criteria, interview & taking over checklist 5 years, 5 months ago

When taking over,

1) Just know the essential valves for your generator. How many valves to top up your sump oil. How much consumption of Lub oil per month. Normally 100 – 300 for 3 generator depend on running hour.
2) How many valves to close when overhauling. Mainly where the FO valves, cooling water valves to close and where to drain,…[Read more]

Admin started the topic Tiebolt in the forum Drawings 5 years, 5 months ago

@icedcappucino