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Sorry for my delayed response. Fastal, how old is the system? Also I would like you to clean both ends of the black ground wire at the back of the pump. In fact clean all the electrical connections, it sounds like a low voltage issue. Tom McGow Bennett Marine

Ahill is right on target. By anti-fouling paint I mean the stuff you paint on the bottom of your boat to keep barnacles and other marine life forms from growing on it. Tom Bennett Marine

Zincs are needed if the boat is kept in saltwater to protect the Trim Tabs from galvanic corrosion . If trailered or on a lift they are not necessary, but a good idea if the boat spends an extended time at a dock. My basic rule of thumb is if you need anti-fouling paint on your hull you need...

Bob and I have been PMing. We will get this fixed for him ASAP! Tom McGow Bennett Marine

For some reason I cannot see the photo. Before you add Automatic Transmission Fluid (ATF) to the Trim Tab pump, make sure both Trim Tabs are in the fully retracted (up) position. Tom McGow Bennett Marine

OnoEric's photo shows the "standard" 12" x 9" Trim Tabs, the 10" x 12" M120s have shorter actuators (rams) and require a little less height on the transom, so they will fit under the platform easily. If the height where the tubing enters the transom is not where you need it to be when you lay...

Brad, This is certainly a DIY item and I will be delighted to walk you through fixing the system. Lets start with the fact that the system does not work at all when the boat is on the trailer. I suspect that there is corrosion in the electrical connections that is reducing the voltage...

SwampGrizz, Below is a Trim Tab 101 I wrote to help people get the hang of using them. Curmudgeon has some very good points, especially using them in short bursts. Usually trimming the bow down a bit will smooth out the ride when running into a chop. This allows the sharp forward sections of...

mvz123a, sfc2113 is correct, the pump sits in a U bracket and if you push it up from the bottom you can remove it from the bulkhead to remove the lexan cover from it. In most cases you don't have to undo the lines or wire harness to remove the pump. Use any type of Automatic Transmission...

Thanks Art! Shoot me a PM when you want the mount and nipples. Tom

Art, Thanks for posting your impressions regarding the installation, I am forwarding it to a few people at the factory as well as my notes (there are some things that need to be added to the instructions). Can you please expand on what you mean by the wires on top of the pump being easy to...

Steve, The "average" lifespan of a system is a lot longer than 10 years, so don't buy anything without checking with me first! We can almost always help with part replacements making it a lot easier and less expensive than replacing the complete system. I just sent an O-ring to a guy with a...

Steve, I am pretty sure I answered this question for you over at The Hull Truth, but I want to make sure: Going to the 12 x 12s would make a great improvement on how the boat runs and it is very easy since you can reuse the same mounting plates and do not have to move the actuator (ram). The...

Art, If it were my boat I would go with the 18 x 12. They will give you the most amount of lift and let you hold the bow down at lower speeds (a good thing with the bracket and 4 stroke). I am not sure if you were mocking up the actuator (ram) with the tape or just holding the "tab" up. The...

Gradyinbath, Since I don't know how your marina did the troubleshooting I cannot be sure, but it would be unusual. I can tell you that the parts are covered by our 5 year warranty. So we can get a new pump sent to you. I would also like you to see if the switch for the Trim Tabs shows...

Art, Dale H is 100% on target. I am working with an owner of another brand of boat on another forum who added a bracket and a 4 stroke. The Trim Tabs that were on the boat with the original transom mounted 2 stroke worked great, but now with the added weight of the 4 stroke and with the...

Drifter, Can you tell me how old your system is? See if you can follow the four color wire harness from the switch on the dashboard to the pump. I seem to recall that some Gradys have the pump mounted under the dashboard down near the floor, but it sounds like you have looked there. The...

Shutterbug I will be delighted to help you get them working. Below you will find the troubleshooting for the system. How old is the system? Here is a link to a video that covers the basic system and general troubleshooting http://www.bennetttrimtabs.com/videoplayer.php?vID=10 Here is a...

Dave, The system is self bleeding, running the Trim Tabs up and down 3 - 4 times will automatically purge any air in the system. Here is a link to a video that covers the basic system and general troubleshooting http://www.youtube.com/watch?v=7E1kp7gPtz8 Here is a link to a video that covers...

Gradyinbath, It sounds like you might have a problem with an electrical connection. Below you will find troubleshooting for the system. Pay particular attention to step 3. A loose screw or connection on the back of the control switch could be causing the problem. Here are two videos you will...