Topic: Tranducer question for 898c SI

[fish7777]

I just received my 898c SI unit today. It came with the XHS 9 HDSI 180 T transducer. The installation guide was for a different transducer, however I was able to go the Humminbird's website, look up the 898c SI accessories, and find the installation guide for this transducer. I have 2 questions:

1) Do I have the correct transducer?
2) The "crimped" metal indented slots on the metal bracket prevent the transducer from being able to be kicked up if it were to hit an obstruction. It's called a pivot but I don't see how it can pivot. Is this normal?

Here's a picture of the "trial" assembly, without the headed pin tightened down.



By the way, I did a lot of searching the forum for this information before I posted but couldn't find the answers.

Thanks,

John

[Roddy]

John, Go to hummingbird.com then under product, click on Transducers then click on view all click on HDSi-180 there is a list of units that it is used with. your 898 is one of them.

Those locking tabs on that mount take a crow bar to swing the xducer up!!! I have four (4) units and cant swing any of them up.

Enjoy Roddy

[LocDown]

the piece that mounts to the transom is solid while the bottom part should pivot a little bit after tightened down. ..it will move a little while under way but should fall back into place while trolling.

[George]

John

Do not depend on the transducers kicking up, it takes a lot of force.  I have broken two mounts so far.  I am thinking about making my own out of aluminum, rather the mount be able to take a beating and protect the transducer.

George

[knorstu]

I found I had tightened the bolt securing the transducer way to much. I backed off the tension until I could get the transducer to flip up if struck. Applied Loc-Tite to ensure the screw didn't fall out. The transducer is way to expensive to replace if I hit something.

Just what I did...Kevin

[fish7777]

Thanks for the help guys. I must have the same transducer Roddy has because mine won't pivot up. Maybe they designed it that way due to the upward force against the wide HDSI transducer was too much for the pivot screw to be able to keep in place for long?

[LocDown]

after tightening the pivot screws, it should still be able to pivot a little bit. If it doesn't then you've done it wrong or tightened it way too much.

[fish7777]

after tightening the pivot screws, it should still be able to pivot a little bit. If it doesn't then you've done it wrong or tightened it way too much.

Hi LocDown,

Taking a look at the picture at the top of this thread, I'm pretty sure I have it done right. It the transducer will pivot around the 2 pivot screws, but the inward crimps on the metal bracket prevent it from kicking up if it hits an obstruction. Does this appear correct?

Thanks,

John

[LocDown]

Looks good. It will only move like a 1/4 inch or so, not much really for a "pivot".

something like this would be cool.
http://forums.sideimagingsoft.com/index.php?topic=3067.msg17821

[Roddy]

After removing the nut, I could not swing the xducer up with a crow bar!!!!  FACT.  Roddy

[knorstu]

Well guys, I have the same transducer and it will pivot. If you remove the nut and it still won't pivot, I would bend the metal bracket apart some.

 Kevin

[Humminbird_Greg]

The indents on the side tabs of the metal bracket do keep the transducer from pivoting upwards until something is forcibly struck from the front of the transducer.  The headed pin and screw will not completely tighten the pivot joint and was designed that way so that the metal bracket would expand when something was hit so that the transducer could than pivot upwards.  If you think that there is too much tension on the transducer that is preventing this; spread the side ‘tabs’ outwards and by the opposite token; if you feel that there needs to be more hold down force, then just bend the side tabs together.  Remember: if the bracket does not give than the transducer will.

A word of caution on using liquid thread locking agents around plastic: some will react with the plastic making it very brittle and causing it to break.  The same can happen with other chemicals applied (on purpose or accidentally) to the plastic parts of the transducer and transducer pivot.

[brettm4811]

The instructional DVD that came with my 898c si has a chapter relating to installing the transducer.