V744VL TriDucer

[Atalla]

Newbie (at transducer service) question.

My depth sensor has become unreliable at best. Getting readings of 7' in the middle of the Puget Sound at times. Is this sensor serviceable in the water? I take it, from reading the manual, that the paddlewheel insert is removeable due to a self-sealing valve upon removal and the blanking plug that is zip tied to it. But I'm a little unclear if the depth sensor is on the paddlewheel insert itself or separate. I just haven't worked on this thing before so welcome any tips. I read that I can clean the sensor itself with a scotchbrite pad but is that sensor actually on the paddlewheel assembly?

Anything I should be watching out for other than lubricating the orings on install?

Also unclear if I can purchase the sensor assembly without buying the fairing block.

 

[bbwhitejr]

Newbie (at transducer service) question.

My depth sensor has become unreliable at best. Getting readings of 7' in the middle of the Puget Sound at times. Is this sensor serviceable in the water? I take it, from reading the manual, that the paddlewheel insert is removeable due to a self-sealing valve upon removal and the blanking plug that is zip tied to it. But I'm a little unclear if the depth sensor is on the paddlewheel insert itself or separate. I just haven't worked on this thing before so welcome any tips. I read that I can clean the sensor itself with a scotchbrite pad but is that sensor actually on the paddlewheel assembly?

Anything I should be watching out for other than lubricating the orings on install?

Also unclear if I can purchase the sensor assembly without buying the fairing block.

You may have two transducers...one for speed and temp(paddle wheel) and a separate one for depth. This is the way mine is set up. The forward bilge in the ER has the speed/temp and the one in the rear bilge is for depth. They can be changed in the water. You will not know if yours has a the "self-sealing" flapper until you pull the old one out. I cannot get mine to come out from inside due to bottom paint or whatever. It will not budge. I am going to have to find someone to go under the boat with a dowel and hammer and try to tap it up for me to get it out or pull the boat and do it in the slings. If you do it in the water, be prepared to shove the blank in the hole or the new transducer pretty quick....another idea is to have someone put a toilet plunger over the hole from the outside to minimize water in the bilge.

Bennett

 

[Atalla]

You may have two transducers...one for speed and temp(paddle wheel) and a separate one for depth. This is the way mine is set up. The forward bilge in the ER has the speed/temp and the one in the rear bilge is for depth. They can be changed in the water. You will not know if yours has a the "self-sealing" flapper until you pull the old one out. I cannot get mine to come out from inside due to bottom paint or whatever. It will not budge. I am going to have to find someone to go under the boat with a dowel and hammer and try to tap it up for me to get it out or pull the boat and do it in the slings. If you do it in the water, be prepared to shove the blank in the hole or the new transducer pretty quick....another idea is to have someone put a toilet plunger over the hole from the outside to minimize water in the bilge.

Bennett

Thanks for the input. Based on model number on the label, I'm relatively certain I have one with the self-sealing valves. Given it is the triducer, I presumed it was responsible for all both sensors and the paddlewheel. Or do you have two triducers, both with the paddlewheel and temp sensor and wired differently?

 

[hottoddie]

Newbie (at transducer service) question.

My depth sensor has become unreliable at best. Getting readings of 7' in the middle of the Puget Sound at times. Is this sensor serviceable in the water? I take it, from reading the manual, that the paddlewheel insert is removeable due to a self-sealing valve upon removal and the blanking plug that is zip tied to it. But I'm a little unclear if the depth sensor is on the paddlewheel insert itself or separate. I just haven't worked on this thing before so welcome any tips. I read that I can clean the sensor itself with a scotchbrite pad but is that sensor actually on the paddlewheel assembly?

Anything I should be watching out for other than lubricating the orings on install?

Also unclear if I can purchase the sensor assembly without buying the fairing block.

The depth sensor is built into the main body of the triducer. The paddle wheel is a spinning magnet that the main body picks up a signal from as it spins. The depth sensor and temp sensors fail most of time from them being left turned on when out of the water. They will overheat when not submerged. To change the triducer the boat MUST be on land as the hole it is mounted in is aprox 2" in diammeter and the old and new triducer and its very long cable must removed and installed from the outside of the hull.