Date   

Re: [Amel Yacht Owners] Re: Icom M802 and AT140 tuner grounding

Mark Erdos
 

Herbert,

 

This just went way over my head. If the capacitors are on parallel this means 4 connection points – two at each end? How is this connected to the single ground wire? Also, the boat ground is not used?

 

Best regards,

 

Mark

 

SM2K #275

www.creampuff.us

 

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Friday, June 06, 2014 7:08 PM
To: amelyachtowners@...
Subject: Re: [Amel Yacht Owners] Re: Icom M802 and AT140 tuner grounding

 

 

If you want to be on the safe side you can put 10 small ceramic capacitors with 3900pF (2500V) each, solded together in parallel (will give 39nF(2500 V) with little Skin Effect) between the tuner ground (ssb ground) and the boat ground.  This will prevent any DC current (and will prevent electrolysis) but will give a solid HF AC connection.  

 

Herbert

KALI MERA, SN 120

Kusadasi

 


Am 07.06.2014 um 00:49 schrieb "'Mark Erdos' mcerdos@... [amelyachtowners]" <amelyachtowners@...>:

 

Alan is 100% correct. I spent hours (okay ~ days ~ or, perhaps weeks) researching this. The 802 cable that connects the 802 to the AT has a ground wire and should be connected to both the 802 and to the ground on the AT which in turn is connected to the copper strap in the lazarette. There is no connection to the ships common ground (yellow and green wiring system) .

 

I installed an isolated 24-12 power supply. Although this has a ground connection available, I was told not to connect it. Only the battery cables are connected to the isolated 24-12 power supply.

 

Hope this helps.

 

Best regards,

 

Mark

Skipper

Sailing Yacht Cream Puff

www.creampuff.us

 

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Friday, June 06, 2014 6:37 PM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Re: Icom M802 and AT140 tuner grounding

 

 

Amel say don't  connect the SSB ground to the ships earth...

 

The 802 ground should be connected to the tuner ground and that connected to the copper strap in the lazarette only.

 

If you don't have an isolated 24 - 12v supply for the SSB, you need some way of isolating the negative supply of the SSB when not in use...at least for the 710, where the negative power line in the SSB is connected internally to the earth.

 

I posted a simple way of doing this that completely isolates the SSB when you turn the breaker off.

 

If you don't do this the negative supply will have a low current connection to ships ground through the seawater.

 

Hope this helps

Cheers

Alan

SV Elyse SM437

Papeete


Re: [Amel Yacht Owners] Re: Icom M802 and AT140 tuner grounding

Herbert Lackner
 

If you want to be on the safe side you can put 10 small ceramic capacitors with 3900pF (2500V) each, solded together in parallel (will give 39nF(2500 V) with little Skin Effect) between the tuner ground (ssb ground) and the boat ground.  This will prevent any DC current (and will prevent electrolysis) but will give a solid HF AC connection.  

Herbert
KALI MERA, SN 120
Kusadasi


Am 07.06.2014 um 00:49 schrieb "'Mark Erdos' mcerdos@... [amelyachtowners]" <amelyachtowners@...>:

 

Alan is 100% correct. I spent hours (okay ~ days ~ or, perhaps weeks) researching this. The 802 cable that connects the 802 to the AT has a ground wire and should be connected to both the 802 and to the ground on the AT which in turn is connected to the copper strap in the lazarette. There is no connection to the ships common ground (yellow and green wiring system) .

 

I installed an isolated 24-12 power supply. Although this has a ground connection available, I was told not to connect it. Only the battery cables are connected to the isolated 24-12 power supply.

 

Hope this helps.

 

Best regards,

 

Mark

Skipper

Sailing Yacht Cream Puff

www.creampuff.us

 

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Friday, June 06, 2014 6:37 PM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Re: Icom M802 and AT140 tuner grounding

 

 

Amel say don't  connect the SSB ground to the ships earth...

 

The 802 ground should be connected to the tuner ground and that connected to the copper strap in the lazarette only.

 

If you don't have an isolated 24 - 12v supply for the SSB, you need some way of isolating the negative supply of the SSB when not in use...at least for the 710, where the negative power line in the SSB is connected internally to the earth.

 

I posted a simple way of doing this that completely isolates the SSB when you turn the breaker off.

 

If you don't do this the negative supply will have a low current connection to ships ground through the seawater.

 

Hope this helps

Cheers

Alan

SV Elyse SM437

Papeete


Re: [Amel Yacht Owners] Re: bow thruster on 54 wont go down

JEFFREY KRAUS
 


Re: [Amel Yacht Owners] Re: Icom M802 and AT140 tuner grounding

Mark Erdos
 

Alan is 100% correct. I spent hours (okay ~ days ~ or, perhaps weeks) researching this. The 802 cable that connects the 802 to the AT has a ground wire and should be connected to both the 802 and to the ground on the AT which in turn is connected to the copper strap in the lazarette. There is no connection to the ships common ground (yellow and green wiring system) .

 

I installed an isolated 24-12 power supply. Although this has a ground connection available, I was told not to connect it. Only the battery cables are connected to the isolated 24-12 power supply.

 

Hope this helps.

 

Best regards,

 

Mark

Skipper

Sailing Yacht Cream Puff

www.creampuff.us

 

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Friday, June 06, 2014 6:37 PM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Re: Icom M802 and AT140 tuner grounding

 

 

Amel say don't  connect the SSB ground to the ships earth...

 

The 802 ground should be connected to the tuner ground and that connected to the copper strap in the lazarette only.

 

If you don't have an isolated 24 - 12v supply for the SSB, you need some way of isolating the negative supply of the SSB when not in use...at least for the 710, where the negative power line in the SSB is connected internally to the earth.

 

I posted a simple way of doing this that completely isolates the SSB when you turn the breaker off.

 

If you don't do this the negative supply will have a low current connection to ships ground through the seawater.

 

Hope this helps

Cheers

Alan

SV Elyse SM437

Papeete


Re: Icom M802 and AT140 tuner grounding

Alan Leslie
 

Amel say don't  connect the SSB ground to the ships earth...


The 802 ground should be connected to the tuner ground and that connected to the copper strap in the lazarette only.


If you don't have an isolated 24 - 12v supply for the SSB, you need some way of isolating the negative supply of the SSB when not in use...at least for the 710, where the negative power line in the SSB is connected internally to the earth.


I posted a simple way of doing this that completely isolates the SSB when you turn the breaker off.


If you don't do this the negative supply will have a low current connection to ships ground through the seawater.


Hope this helps

Cheers

Alan

SV Elyse SM437

Papeete


Re: Just testing

Scott
 

Hi Danny,
This is from Scott and Diane on SV Ati. We met you a year ago on Ocean Pearl in Opua (you showed us some salon dancing) and now own SM 202, SV Ati. We remember you well and have some pressing SM questions we wish to ask you via personal email, if possible. We are currently in the very shallow Turks and Caicois trending further south and east. Can you please email us at atioceania@... and E5U2582@... and we will write you back with our questions. Or even possibly contact us via Skype at harpodog. We would very much appreciate your wisdom and advice. Thank you. 
Fair winds,
Scott and Diane 
 


Icom M802 and AT140 tuner grounding

islandbwoy4434
 

My head spins every time I think about the floating DC ground and bonding system on Libby.

I have a singular question. Where do I connect the ground connection on the Icom M802 transceiver and AT140 tuner to? Given that I have maintained the floating ground integrity on our vessel, is it safe to connect to the ships bonding circuit? (yellow and green wiring system) 

For clarity, I have the tuner already connected to SSB copper foil in the back lazerette.


Any help is appreciated.


Terry&Dena

SV Libby

#196

Mission Bay, CA


Re: [Amel Yacht Owners] Re: Rocna Anchor fit

Ann-Sofie Svanberg <kanalmamman@...>
 

What is a Crosby schackel? Have never heard about that brand. Is it as good as Wichard?

/Annsofie
S/Y Lady Annila
SM232

Skickat från min iPad

6 jun 2014 kl. 11:27 skrev "hannamj@... [amelyachtowners]" <amelyachtowners@...>:

 

Hi All.

Some thoughts about New Generation Anchors.
Many people have given good reports about the Rocna anchors.  That being said...we chose to go with a 60 Lb. Manson Supreme (for our Sharki). Manson anchors are made in New Zealand using a higher grade of steel than the Rocna anchors. The Manson Supreme has a Lloyd's of London "Super High Holding" certificate. We use a Fortress anchor for our second anchor, kedge, stern etc. I would not be against having a Mantus Anchor as a spare primary anchor that can be stored disassembled and flat.  Please consider using high quality galvanized anchor shackles from Crosby (or similar). I see too many boats with high quality anchors attached to high quality chains using cheap Chinese or "no name" anchor shackles.  The small cost savings is not worth the loss of your Amel.  If you feel that you must use an anchor swivel, do not attach it directly to your anchor. Use a small length of chain between the anchor and swivel (attached with Crosby shackles) to prevent the swivel from being side loaded if the wind or current shifts. Also, I suggest NO stainless steel ground tackle.  I'm probably preaching to the choir...You are the captain of your vessel...YMMV.
FAIR WINDS.
Mark Hanna
S/V MARGUERITE


Re: Main outhaul line

Alan Leslie
 

9.2m finished length with a soft eye at each end...one soft eye has to be spliced in situ if you don't want to take the guides off the boom.


Cheers

Alan

SV Elyse SM 437

Papeete


Re: Main outhaul line

Derick Gates SM2K #400 Brava
 

Alan,

 

Thank you for the very useful information and experience.  How long a piece of Vectran did you need for the main outhaul?

 

Derick

 

SM2K #400 Brava


 


Re: [Amel Yacht Owners] Main boom attachment on SM

Eric Freedman
 

Ian and Judy,

The photo of the bracket that you  sent me in the photo is identical to the one I replaced. The two screws just go through holes in the boom track.

If you cannot remove the screws you have to carefully drill them out

Once out ,hopefully they will just slide down the track and off the boom

If they do not move after the screws are removed  that is another project.

Do not try to force them off the boom by hammering on them , they will tear up the metal on the boom. Just a light tap and hopefully they will move.

 

If they do  not move after a few light taps write me again.

Fair Winds

Eric

Kimberlite SM 376

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Friday, June 06, 2014 6:19 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Main boom attachment on SM

 

 

Hi Gary and anyone else who has replaced the attachment on their main boom,

Forewarned by you I checked our own attachment (14 years old and 56,000 miles ) and it was cracked but still hanging on. I have the replacement from Maud but am having real problems getting the stainless screws out of the  smaller aft attachment which I need to slide off before I can access the larger one . Tried sharp taps with a hammer but am in danger of blurring the slot on the bolt head. Can't use a blow torch for fear of damaging the paint on the boom.
  May just have to sacrifice the aft one and get a further replacement from Maud, but before I do that, has anyone any suggestions ?
    Ian and Judy, Pen Azen, SM 302 , Gouvia, Greece



Re: [Amel Yacht Owners] FIASCO is now Home

marksharki
 

Regarding battery chargers. Our boat has a 630 Amp Hr. house battery bank. Dock side we use a Mastervolt 50 Amp, 120/250V AC , 3 stage battery charger. This has been a very good charger. We bought the boat with a Zantrex battery charger. It died. We replaced it with a Zantrex Tru-Charge (sp) 40 Amp charger. It failed under warranty.  The replacement also failed. We then replaced it with the Mastervolt 50 Amp. Going on 2 years of continual use...perfect ! We use a stand alone 1800 Watt AC inverter and a small AC inverter for the TV.  Inverters should be sized to the expected load. A big inverter hooked to a small load is inefficient. 
Congratulations on your new Amel. We Love ours !
Mark Hanna
Amel Sharki NO. 49
S/V MARGUERITE 


Re: Rocna Anchor fit

marksharki
 

Hi All.
Some thoughts about New Generation Anchors.
Many people have given good reports about the Rocna anchors.  That being said...we chose to go with a 60 Lb. Manson Supreme (for our Sharki). Manson anchors are made in New Zealand using a higher grade of steel than the Rocna anchors. The Manson Supreme has a Lloyd's of London "Super High Holding" certificate. We use a Fortress anchor for our second anchor, kedge, stern etc. I would not be against having a Mantus Anchor as a spare primary anchor that can be stored disassembled and flat.  Please consider using high quality galvanized anchor shackles from Crosby (or similar). I see too many boats with high quality anchors attached to high quality chains using cheap Chinese or "no name" anchor shackles.  The small cost savings is not worth the loss of your Amel.  If you feel that you must use an anchor swivel, do not attach it directly to your anchor. Use a small length of chain between the anchor and swivel (attached with Crosby shackles) to prevent the swivel from being side loaded if the wind or current shifts. Also, I suggest NO stainless steel ground tackle.  I'm probably preaching to the choir...You are the captain of your vessel...YMMV.
FAIR WINDS.
Mark Hanna
S/V MARGUERITE


Re: bow thruster on 54 wont go down

Bob Hodgins <bobh@...>
 

No, I do not know where to buy the up/down limit switches. I bought a few from Amel a few years ago, at a crazy high price. If you find a source for them I would like to get some spares.
Bob
Gallivant
--


Main boom attachment on SM

ianjenkins1946 <ianjudyjenkins@hotmail.com>
 

Hi Gary and anyone else who has replaced the attachment on their main boom,

Forewarned by you I checked our own attachment (14 years old and 56,000 miles ) and it was cracked but still hanging on. I have the replacement from Maud but am having real problems getting the stainless screws out of the  smaller aft attachment which I need to slide off before I can access the larger one . Tried sharp taps with a hammer but am in danger of blurring the slot on the bolt head. Can't use a blow torch for fear of damaging the paint on the boom.
  May just have to sacrifice the aft one and get a further replacement from Maud, but before I do that, has anyone any suggestions ?
    Ian and Judy, Pen Azen, SM 302 , Gouvia, Greece




Re: [Amel Yacht Owners] Onan raw water impeller

Alan Leslie
 

Thanks Bill,


Yes new pump, key is 100%


Noted about the heat gun...


Talking about keys.....our anchor wash pump failed...and it was the key....

Motor ran but no water.

I fabricated a new key from a piece of stainless plate I had.....hacksaw and file +3 hours and its working.


If its of interest the key needs to be

9mm long

2.9mm thick

3.3mm deep

with the standard woodruff curve to fit the shaft


Cheers

Alan

SV Elyse SM 437 Papeete


Re: [Amel Yacht Owners] Onan raw water impeller

Bill & Judy Rouse <yahoogroups@...>
 

Alan,

I could not get the hoses off without heating them. I did not have a heat gun at the time so I poured boiling water over them. If I were you, I would not try without heat.

I had one other issue, which since you have a new pump, probably doesn't apply. The original pump has a key for the impeller. I found the key so worn that the impeller would spin on the shaft. I believe our Onan 7.5 with the Kubuto engine is great except for the raw water pump and heat exchanger. I would like to see these made with larger capacity.

Bill Rouse
BeBe Amel 53 #387
sent from my tablet


Re: [Amel Yacht Owners] Onan raw water impeller

Alan Leslie
 

Thanks Bill,


Yes, the hoses seem clear......plenty of water coming through when disconnected


but you never know !

I'll take em off to be certain...they are hard to get off, that's for sure !!


Cheers

Alan

SV Elyse SM437...Papeete


Re: [Amel Yacht Owners] Onan raw water impeller

Bill & Judy Rouse <yahoogroups@...>
 

Alan,

I am sure you have checked this, but...

We had a restricted water problem about 6 years ago and found humdreds of mussels living inside the hose to the generator. They were located just after where the hose connects to the sea water chest. If you have never removed this hose, and the other two: one that goes to the engine, and one the the manifold, I suggest looking. It is best to use a heat gun on these hoses to get them off.

Hope this helps you.

Bill Rouse
BeBe Amel 53 #387
sent from my tablet

On Jun 5, 2014 8:21 PM, "divanz620@... [amelyachtowners]" <amelyachtowners@...> wrote:
 

I thought I had this problem solved.....

New Sherwood pump with one piece bronze casting

Global run-dry impeller...

But no.

The global impeller has started to shred itself and we had code 7 after 173 hours.

Admittedly that's nearly twice what we were getting from the Onan pump and impeller, but its still not very good !

Cheers

Alan

SV Elyse SM437, currently Taina Marina, Papeete


Re: [Amel Yacht Owners] Re: 30W/40 oil for Dessalator high pressure pump

Bill & Judy Rouse <yahoogroups@...>
 

Regarding the 140 and 160 reference,  I believe the only difference is that Filmtec, manufacturer of membranes, increased the pressure spec of the SW30 2540 membranes which allowed the same water maker to produce more. Unfortunately,  Dessalator doesn't manufacturer water makers with actual pressure markings on the gauge.

I assume you may be able to ask Dessalator the question about increased membrane pressure if you own a 140.

Hope this helps.

Bill Rouse
BeBe Amel 53 #387
sent from my tablet

On Jun 6, 2014 12:45 AM, "svperegrinus" <no_reply@...> wrote:
 

Hello Eric,


Our water maker is a Dessalator and it is a 220 volt version.

Peregrinus is hull number 350, launched very late in 2001, possibly November.

We are not clear on the desalinator's model number, but based on a manual provided in one of the accessories binders, we speculate it might be a D140 / 2.5 kW / 220.  Our Amel factory manual itself has pictures of a 50 l/hr unit, but it is very clear that that's not the one installed on Peregrinus.

Having said that, the production sight gauge tops at 160 liters, and Bill made a reference to a Dessalator 160, so who knows?


Peregrinus
#350  - At anchor, Lake Worth


---In amelyachtowners@..., wrote :

Do you have a desalinator brand watermaker- is it the 220 version?

What is your hull number is it a Kimberlite SM 376?

Fair Winds

Eric

Kimberlite SM 376

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of svperegrinus
Sent: Wednesday, June 04, 2014 5:46 PM
To: amelyachtowners@...
Subject: Re: [Amel Yacht Owners] 30W/40 oil for Dessalator high pressure pump

 

 

Thank you Vito and Bi ll.

 

We postponed our departure by one day to get the oil and missed half our sailing window!  For anyone else who may have a watermaker with a CAT high pressure pump, what you need is:

 

CAT Pumps Crankcase Oil ISO 68, petroleum based, hydraulic oil.

21 oz. (0.62 liter) $12.95 at Watermakers Inc. of Ft. Lauderdale

Funnily enough, the Amel manual on board wants 0.75 liter oil changes on this pump!

 

Or, per e-mail received from the CAT factory yesterday:

  "We do have our own Cat oil that can be found at Northern Tool and Home Depot.

But if not available to you.

It is a non detergent 30W Hydraulic oil, or a ISO 68"

 

And then we desalinated over 300 liters today.  This thing is fast.

 

sv Peregrinus

At anchor, Lake Worth, La Florida.