Bass Boat Forums
Bass Boat Maintenance & Repairs => Bass Boat Trailer Maintenance => Topic started by: fishon-son on June 05, 2016, 10:14:18 AM
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not sure what going on with it but the tires lock up when I back up...I have a key to put in but with out that key forget it..the key is just a small pc. of metal stock that fits behind the trailer brake system on the tongue ..I have to have a magnet to hold that in place.or it falls out......theres got to be a better way? stratos no help..take it back to the dealer....at $105 hr...wtf any help stratos guys..im sure it out of adjustment ?
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One of two culprits:
1 - the back-up bypass valve is dysfunctional
2 - the electrical feed from the backup lights circuit to the bypass valve is dead
The valve bypasses the brake fluid from the line to the calipers back into the reservoir allowing the master cylinder to compress without actuating the brakes. So, either it is not working (bound up or corroded) or the electrical circuit is not complete to actuate it. Make sure the WHITE ground wire is making good connection, don't rely on just the hitch to make that connection.
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im gonna assume u have disc brakes with an anti reverse "backup" solenoid. most feeds for the anit reverse solenoids are picked up from the backup light circuit on the tow vehicle and are fused by the same however later vehicles have a separate circuit fed into the towing plug if factory equiped look in the fuse box and make sure the towing reverse fuse is in the slot or not blown
However if u have drum brakes the lockout is totally mechanical a small pin inserted into the coupler locks out the plunger action or on top the knob disables it