2016年8月13日 星期六

Engine oil service D2-75 and generator

The engine of Thetis comes to 60hrs, according to service manual it should be processed with some inspection and replacement of engine oil and oil filter.
start the engine for warming up engine before changing oil.


60.6hrs


first service I=inspection, C=check, R=replace
The little yellow cap is where you can get the engine oil out wth a suction tool.


   
As manual mentioned I used a plastic bag when removing old filter, so there is no dirty oil drop in engine room. Here shows the part Nr of oil filter.
We have prepared 10 liters of volvo 10W-40 oil, according to the manual, this D2-75 requires 10.5 liters. we added oil by several times, 
1st:5000ml
2nd:3000ml
check oil level, reached minium
start engine, run for 2 mins
3rd: 1500ml
start engine, run for 2 mins
measure oil level, at maxium
we total added 9.5 liters.


After adding new oil, start engine again and check if there is any oil leakage.




 The generator is coming to 119hrs....


finally we found the engine model on top of the engine. LDW702 MG.(then what is the panel on the side of engine?) According the data I found from internet, this engine requires 1.5L oil without replacing filter, 1.6L with new oil filter.


Base on the manual it would need only engine oil replacement, the filter replacement will be at 250hrs.
the suggested oil is total 10W-40, I found this total 15W-40, which also has volvo VDS-3 certification(volvo D2-75 required VDS-3 level engine oil). which means next time I can also use this oil for D2-75


For the record, I got this from here with good price.




2016年7月20日 星期三

Shore power cable....calculation and sourcing.....and questions...


Thetis will move back to Tainan for winter, since the shore power connector is always different, so we need new cable.
There are few items I processed up to now for this.


1. calculation
Some people will tell you what is the current rating you should use base on the size of the boat. I'm looking for a better estimation, since I still have all the manual, I go for a calculation.
https://docs.google.com/spreadsheets/d/1IOnrSGMRL_AkS_JO0TNkuuYUeN8ZzrgbEg7Vx3ZbrSo/edit#gid=0

Watts
boiler1200
12V Charger700frigo at 500W
Micro wave1270Max output is 900W
air condition 19984.7A at 230V
air condition 29984.7A at 230V
air condition 39984.7A at 230V
6164

These are the max power input of items I know which using 220V. of course you won't have every thing runs at max at same time. if you really do it, that would take you 6164W, which turns to 28A at 220V.  Of course you won't reach this figure.
Even with safety consideration, 32-40A rating cable and connector s are all good enough.
This fit what I saw in Ann pin. Most of them, from 40~60fts yachts,  the use mostly 10mm2 3C.
which is about 7AWG.


2. Wire selection:




the currenting of AWG is based on a standard MIL-STD-975
these current rating could be vary base on ambient temperature and the insulation material(temperature allowed ).
So you may find some other different people saying pretty different figures.
and I found a good site for those calculation:
http://circuitcalculator.com/wordpress/2007/09/20/wire-parameter-calculator/

There are some standards for boat cables, such as UL or VW-1...
UL has a category called boat cable, define as here:
Boat cable is rated 600 V, 60°C (122°F) or 75°C (167°F) wet, 60 to 200°C dry locations and, for cable so marked, 60°C (140°F) and lower temperatures where exposed to oil. The cable employs stranded copper conductors in a size range of 18 to 4/0 AWG inclusive for multiple conductors, 16 to 4/0 AWG inclusive for single conductors. Ampacities are in accordance with 33CFR183, Parts 430 and 435.

This is what I have on the power cable for B37:10AWG 3C


On the cable I have on 51:I guess it use industrial cables.


And it comes with an american connector.(this cable is to be used in 亞灣, where they mostly use US type connector and voltage, only 2 slips has 220V)



Which I think it should be ok, since industrial temperature and environment should be similar to the dock.But dock has more corrosion issues.

3. Connectors. The connectors are mostly industrial power connectors, mostly form Europ , Mennekes.

here is the catalog for it.
Mennekes

Mennekes plugs

On the dock of Ann-Ping:



On 51: HUBBELL, this is an american one...



This is some how funny, no? the boat came from Europe, and it have an american connector on it.
And I went to sailing school to check the cables used in the boat show for 51, and the cable connectors looks like these, Germany ones!
(the cable is 10AWG 3C, and pretty short, only 3M an 3.5M, these can only be used in the show):



My question rise again, how could these cables being used on the 51? the connectors are totally different.
I reach out a pic I took on 51 durint the boat show. what a surprise! it did fit, I believe the inlet has been changed.



I'm not sure why this has been done, the the next question is that I know there is a break in the boat right after the inlet. what would be the rating of these breakers and the wires between inlet and breakers.
I wish to find out why they do the modification.(talking about the modified wiring on this boat, I have serious reason to be afraid.....)

I still have a pic of cable connector of B37, this is the shore side, which fits show power outlet of 亞灣. But, the other side for the boat inlet is still a 3 pins european one.

cable connector of B37 power cable, shore side.
Backing on to the 51 current shore power cable, both side connector are US ones, rating at 50A(which is more than enough for my calculation). I understand the shore side is to fit the shore power outlet of 亞灣, but why they modified the boat side? your cable is custom made anyway.
I see no reason of doing this: replacing an original parts with an lower current rating connector of different system.

Now AnnPing use european system....i need to figure out this.....

2016年7月17日 星期日

前艙水龍頭漏水

只有打開使用時,會從上面漏.....


Diesel fuel gage....dead....after few rains...

After the typhoon,  there started to have moisture in my fuel Gage, I don't real care about it, since this happens on B37 as well. but the one on B37 works normally and moisture goes away after few sunning days.

But this one on 51 just dead after 2 days. the pointer is stopped on the most right side of gage after it runs for testing.

Coolant leak......when can you stop leaking....

7/15 before leaving nice 東嶼坪, I have checked and cleared all leaked coolant, and start the engine for 10mins for checking leaking, I got nothing after these 10mins of engine running.

we left the port, set up the sails for returning tainan, nice beam reach at 10~15 knots, we were sailing at 8 kts, with engine at only 1500 rpm.

after 30 mins, I wish to check if there is any "minor" leaking of coolant, since I always find some,not much, under the engine.

Big surprise !! there are quite a lot of coolant leaking under the engine.


I was trying to find the source of leakage from some "old" spot, but those were good.
and I found on top of the engine, on the water tank cap, there is a cooper join with white tape seal. this is where the coolant leaking fast.



I was wondering if we can hold the engine running for 5~7 hrs until we reach Taiwan, my guess is that I have to stop the engine for refilling coolant. and this will take some time, since you need to wait the engine to cool down before opening the vice water tank. We will pass the route of liners, and there are lot of fishing buoy when we approach Taiwan, I need engine to do the job.

So, I decided to try to tight up the connector with hand, with those tubes on top, there is no chance to turn much. I turned it about 30 degree(it's quite loosen though), and the leaking reduced a lot.

I believe we can hold up to tainan.....

the tricky thing is that I have never seen some one use with tape seal on a pressured system, because it can't hold the pressure. it will fail some where some how.....or again....





2016年7月11日 星期一

How to charge batteries with generator

When we start the main engine,the 12v alternator will charge the batteries(both service and start one),but if you only start the generator,it will not charge.

The AC input of battery charger is connected after the breaker of no.3 AC breaker.
So,you need to turn it on for charging batteries using AC generator.
The marking on the AC breakers is not exact, the 2nd one marked socket head,but to use the 220v sockets,you need to turn the 3rd breaker.

This is why all wire should be labeled as diagram....


After Typhoon, we have to move boat back to our normal peer.
Where I usually need to back my boat into place. When backing the boat, the rudder angle indicator is very important to me, the funny thing is that I can't see my rudder indicator bar on the screen...

No time to figure why, backing a 51 foot in to slip with wind blowing boat away from peer, timing and experience helper is important.


Next day, while testing,I push the button for auto pilot, I figure out that my ECU of auto pilot is not on....



By previous experience of stern platform http://b51b37.blogspot.tw/2016/06/stern-platform.html
I understood that the power of ECU is wired from stern platform control relay, with a fuse near by and absolutely no marking nor diagam.

our people take of the control relay for checking,  but when he wire back, he based on a note he marked with color of wiring.

I checked the fuse, a 40A one, it's good. Soon I noticed that the wiring is some how bizarre.

the positive wire from ecu is red, and they tape it to a fuse set which has a orange wire.(which is not good, and this is not noted on the diagram)
As you can see, both orange(+) and black(-) are bolted together on the black terminal(which I believe is negative)



After correcting the orange wire to positive terminal(which I wondering if it would pass any fuse),
my ECU LED light up, rudder indicator and auto pilot is back to work.

I'm not sure if the auto pilot setting(control loop gain...etc) still remain?
will figure that out next time on the sea.

2016_7_11 老闆,我把船擦破了....

颱風過後整理船, 拿起抹布看到汙點就擦....

前艙右側有個地方起泡, 影子被我看成汙點, 擦一擦凸然就越擦越黑.....
他破皮了.....



2016年7月1日 星期五

Thetis satellite phone


The phone is different from the one of Hera, this seems certified by NCC....
it's supplied by CHT, the phone seems to have several functions, ex: you can program it to send out current location by sms.
or you can connect it to PC....
here I first noted the telephone nr:


When dial out, you first need to dial 00 then add country code...


 This is the info from the sim card

To check how many point we still have on the phone, you need to dial:
*151#
then the phone will pass the inquiry and return the remain.




B37 port side stern fair lead


第一漁港的停泊條件其實不好, 大小船隻快速通過的浪都會擠進港內,並在這個封閉的水域裡產生共振.....
浮動碼頭剛好在港區的中間位置, 自然會是震幅最大的地方....

B37 5月23號,來到這個碼頭,大約經過一個多月了.....今天發現這個port side的虎牙有點怪怪的....

我想他是被拉出去的.....
我的想法是,這個碼頭在沒有改善前, 不適合長期把船放在這





Generator.....Nothing matched....

The weather is so hot, generator runs pretty often, very soon it passed 50hrs, and now at 100hrs...
The generator is a very strange mark in taiwan, it's in fact a combination of small diesel engine and a AC 220V generator....

The whole assemble is VTE Paguro 9000V, the company web site: www.volpitecno.com
 and the diesel engine is Lombardini.....
Both form Italy.....(suddenly the said story of alfa romio and fiat in Taiwan comes to my mind)

there are several manuals, one for VTE, the others from engine, the manual of engines are duplicated in different language, and there are different kinds in function:
safty operation
service(noted where are the distributor....the closed one on it is in China....bad feeling again...)
use maintenance
Before checking the engine on board, I read the manual, and made a table of maintenance....
which indicated things need to be check or replace with according hours.

Generator

Beside the normal oil, oil filter, impeller, belt, there is also a zinc anode on a screw and coolant filer as well as coolant pipe.
The funny thing is that there is not part nr of above components on the manual, I wandering how can we order these parts....


7/1 with the help of 耿, I started to open the house of generator....
first, look, the generator is not installed at the center of chamber, and the housing is in touch of the maintenance door. this should be the reason why port side cabin is more noisy than the other one.


When you understand that is one is installed by chinese,then....you don't ask why any more.

the generator is installed on top of the boat engine, the room is so limited.

I have seen hunter 456 and Tayana T48, both generator has good room for maintenance.

The white covers, can be open like a shell, you can push the back side cover to the room behind,but you won't be able to remove the front side cover, you can only loosen it.

Finally, we found out that remove the battery(which is not really fixed), there is a chance to take the front cover out....




At first look, this doesn't look like what I have seen on manual......well, it's italian, some times some thing can be different.


So, the first thing is to find the tag, according to the manual, the model and serial nr should be noted on the tag.

the manual on hand is noted with LDW 502/702/1003/1404.....
But the tag I found, it's nothing similar.



The one I found is marked as "6M0200" and 4533702102, which I believe one is model name and the later one is serial nr......
it's complete different from the manual.....#$%^&*&^%$#@$%^&^%$#$%^&..............

I started to find part nr on the machine:
This is fuel water seperator, which installed out side of white shell.


Below is oil filter: 107.2175.117



Below is fuel filter: 174.2175.256




below is the coolant outlet screw, it was slightly wet when I check it lastime, tighten it again.



the belt is covered up, no intention to open it now....
this engine has no 12V generator.....
Need to check how the generator battery is charged....


the orange one is oil level checker, the oil seems still clear and the level is slight higher than max.
the yellow copper one, is oil pump, we can pump oil out with it. Manual recommend glans and glasses for protection.

the orange one on top on engine is where we can add oil, the room is so limited, we will need a pipe to do this....
An other question comes to my mind, the manual noted that oil should be Sae 15-40w, and recommand total, but, how many liters? nothing mentioned in the manual.

According to manual, there should be a small glass window on the top of the heat exchanger, where we can check the level of coolant....
But there is no window on it, even there is a place for it.


I can only open the top of coolant tank, and test with my finger, since you have no way to see the level.



this will also require good technic when adding water.


since the machine is different form the manual(partially similar...)
I believe the black one is where we can find the coolant filter.



And this crew, could be the zinc one....but I'm not sure....need to find the manual for this machine.



update 2016/7/3
I found a site from UK, they have a service kit for paguro 6000~18000, looks great, but the part nr is not the same as mine on boat.

http://www.advanceyacht.co.uk/paguro-parts-store/paguro-6000-18000-service-kit

DSCF1194.jpg




update 7/4


the big wheel at the bottom side is in fact a belt drive, which should drive a 12V alternator, which serve to charge the start battery. Since there is nothing on my generator engine, I was wondering how they charge the battery....
So, i process a measurement on the battery voltage,
before starting: 11V, during pre heat 10V, while starting 9V.....
After generator working normally, the voltage is still 11V.....
while generator started, nothing charge the battery...
 I then start the D2-75, and wish to see if the battery charging controller will charge this battery...
The answer is NO....

That means one day, the battery will die.....
Ok, the who is stupid? the designer or the buyer?

There is also something I do not understand. the following is the fuel pipe in and out of generator shell. there are 2 white connectors, one side is bounded with zipper, the other side is free. Isn't it should also have something to clamp the tube?

I should also find something to protect the fuel tube from the opening of shell, the edge is rather sharp and the generator vibrates a lot when working.