We are having an issue with our trailer (2005 Featherlite stock trailer) locking up the wheels when we just lightly touch the brake pedal. We just replaced the brake controller with a new one that has a digital display. I have set the sync to its lowest setting and the brake pressure to 3.0. The problem is that there is no proportion of brake pedal to trailer brake response. When you touch the brake pedal you can watch the digital display go up from 0 to 3 in about 3 seconds and then lock up the trailer brakes. This is on a 2002 F-250. Is there something that acts as a potentiometer in the truck or is this actually an issue with the trailer side of the equation? Any help would be greatly appreciated.
Posted 2011-04-03 9:29 PM (#132580 - in reply to #132557) Subject: RE: trailer brake
Expert
Posts: 3853 Location: Vermont
SETUP Preliminary Adjustments With the trailer connected press and hold the brake pedal,the Display will show the Output setting. Adjust to 2.0 by turning the control up or down as needed. While still holding the brake pedal move the Sync Controls lightly, the Display will change to the Sync setting. Adjust to 40 by sliding the Sync Control ahead or back asnecessary. TEST DRIVE In an open area, such as a large parking lot, drive forward and apply the trailer brakes using the Manual Control. If the trailer brakes are weak adjust the Output Control up. If the trailer brakes jerk or lockup adjust the Output Control down. Repeat this step until firm braking is felt with out jerking or lockup. Once the Output is set, drive forward and press the brake pedal, the tow vehicle and trailer should make a smooth stop. If the stop seems slow and more aggressive braking is desired, move the Sync Control rearward while holding the brake pedal. If the stop seems too aggressive adjust the Sync Control rearward while holding the brake pedal. After making a Sync adjustment the Display will show the setting until the brake pedal is released. Make several stops at various speeds and adjust the Sync until stops are smooth and firm. Slight adjustment of the Output Control may also be desirable. NOTE: If any problems occur during Setup refer to the Trouble Shooting section of these instructions.
trailer brake
