Re: Trim not working
If your trim tabs are Bennett this may help.
If the image shows them check your unit. if it looks like this them likely bennett.
The fluid should be filled to the label on the front with the trim tabs in up position.
1 Clear white plastic resovore. Fill to the level line of the label on the front. Fluid should be pretty level in the tank. If the boat is level and the fluid in the tank is not then you may need to shimm the entire assembly later.
To fill remove screw 7 on the top and remove cover 6 by lifting up.
Remove plug 4 and fill with automatic transmission fluid.
Run the tabs down and up several times and recheck the level with the tabs up.
For the unit to work good you must have a charged battery or the motor running and proper size wireing.
If you have control type 37 or 38 then know you can not raise one tab while lowering the other. The motor runs foward to lower one or both tabs and backward to raise one or both tabs. Since the motor can not run foward and backwards at the same time you can not raise one side at the same time you are lowering the other side.
If it looks like this and still does not work then there is a lot more troubling that can be done. Sense is is very long I do not want to post unless you need it.
Good Luck