henry Kadzielski
Member
- Messages
- 1,229
- Location
- Australia Wollongong
Yesterday I traveled back to the boat that I had been doing the hydraulic install on for the final commissioning. Had a few dramas as things not operating as expected. The fault was traced to the curcuit schematic not drawn correctly 
not by me but the engineer that supplied all the pumps and valves
.
The boat is a longliner to fish for tuna off the east coast of Australia.
I did all the piping in 316 S/S tube, built the winches on the mast and the boom, installed the pumps and live PTO on the gearbox behind the main engine
THe owner wanted all metal components to be 316S/S so that is what I did. The blue thing is the drive, which consists of the hydraulic motor, the planetary reduction and the brake mechanism with a keyed output shaft. I make up the rest, however I didn't weld the base to the boom as you can see by the weld
I constructed this stand and welded it to the inside of the shelter deck, did all the wiring for the electrical control systems as this is electric over hydraulic control. I am actually amazed that it actually worked. My head wasn't in the right space when I was doing the wiring, voltage dividers and change over switch gear. Anyone that is familiar with Danfoss PVG32 will understand.
The owner also wanted a full operational backup system, so I fitted a 18.5kw motor with a 60cc danfoss pressure compensated load sense pump. The main system is at the back of the gearbox so very difficult to see of photograph.
Repurposed the original header tank as the original engine was keel cooled into the new hydraulic tank. It was there why not use it
For cooling the hydraulics when it is running I used the sew water after it has cooled the main engine and gearbox oil to cool the hydraulic oil and them discharge overboard, 'simples'. The discharge pipe work is PPR Aquatherm from Germany. It is very tough, doesn't break and doesn't corrode.
Space is a premium and there is still much 'stuff' to be fitted to the front engine room bulkhead wall so all effort have been taken to leave as much space as possible for that. Even the seawater discharge pipe work had to be constructed to make space for people to get past the generator to the right.
It doesn't look like much when you see it now, but there were many things that had to be moved to make it all fit and be relatively neat. I don't quote these jobs as I am familiar what it takes to do, but never thought it would take half the time it actually took. I don't actually want to do another one, but from past experience will never say never as that is exactly what happens.
not by me but the engineer that supplied all the pumps and valves.The boat is a longliner to fish for tuna off the east coast of Australia.
I did all the piping in 316 S/S tube, built the winches on the mast and the boom, installed the pumps and live PTO on the gearbox behind the main engine
THe owner wanted all metal components to be 316S/S so that is what I did. The blue thing is the drive, which consists of the hydraulic motor, the planetary reduction and the brake mechanism with a keyed output shaft. I make up the rest, however I didn't weld the base to the boom as you can see by the weld
I constructed this stand and welded it to the inside of the shelter deck, did all the wiring for the electrical control systems as this is electric over hydraulic control. I am actually amazed that it actually worked. My head wasn't in the right space when I was doing the wiring, voltage dividers and change over switch gear. Anyone that is familiar with Danfoss PVG32 will understand.
The owner also wanted a full operational backup system, so I fitted a 18.5kw motor with a 60cc danfoss pressure compensated load sense pump. The main system is at the back of the gearbox so very difficult to see of photograph.
Repurposed the original header tank as the original engine was keel cooled into the new hydraulic tank. It was there why not use it
For cooling the hydraulics when it is running I used the sew water after it has cooled the main engine and gearbox oil to cool the hydraulic oil and them discharge overboard, 'simples'. The discharge pipe work is PPR Aquatherm from Germany. It is very tough, doesn't break and doesn't corrode.
Space is a premium and there is still much 'stuff' to be fitted to the front engine room bulkhead wall so all effort have been taken to leave as much space as possible for that. Even the seawater discharge pipe work had to be constructed to make space for people to get past the generator to the right.
It doesn't look like much when you see it now, but there were many things that had to be moved to make it all fit and be relatively neat. I don't quote these jobs as I am familiar what it takes to do, but never thought it would take half the time it actually took. I don't actually want to do another one, but from past experience will never say never as that is exactly what happens.
We have 8 along with matching saucers. They came up locally and picked them up for next to nothing