Adjusting a prodigy P2

[Tfort]

I just installed a p2 in my truck and while adjusting I had at one time the controller turned all the way up and the trailer brakes won't lock up. I adjusted it and feels great stopping now Compared to the previous controller that was not proportional. Is it a problem that the trailer brakes would not grab hard enough to lockup? I will say when I hit the manual lever it snatched the truck pretty hard.


2000 F250 CC 4x4 7.3L diesel

15 Salem Hemisphere Lite356QB

[indybp57]

I cant lock up the brakes on our Roo on pavement. I know the manual says to adjust them that way but I couldn't accomplish it. I adjust mine so that I cant really notice the trailer pushing or tugging when coming to a hard stop. That's all that really matters IMO.

[Tfort]

Thanks for the reply. That's what I did as well. It works so much better than the old controller I had that was not proportional. It used to stop the truck and trailer just with the trailer brakes.


2000 F250 CC 4x4 7.3L diesel

15 Salem Hemisphere Lite356QB

[Skyliner]

If you can't lock them up it could mean a several things:

a. Trailer brakes aren't adjusted properly. Gap between shoes and drum is too large. Here is a good video of how to do it:

https://www.youtube.com/watch?v=HL-eLaB0opE

b. Poor electrical connections limiting current flow to brakes. This could be oxidized pins on connector, too thin wiring, poor ground, or poor wiring splicing at junction box and/or at wheels.

c. Glazed pads from overheating or not properly bedding in new pads on camper. Glaze can be knocked off with sandpaper.

If brakes are new, give them time to bed in and follow common bed in procedures on the internet. After bed in, adjust them per video above.