Forum Discussion

KPruitt's avatar
KPruitt
Explorer
Oct 09, 2015

Brakes locked on Holiday Rambler

RV has only been setting for about two months
Air brakes will not unlock
Have hit drums with hammer
Have rocked RV back and forth
What can I do next to unlock brakes???
  • Going forward pulls brake shoes tighter. Going in reverse pushes them looser.
  • Ivylog's avatar
    Ivylog
    Explorer III
    Bobbo wrote:
    Going forward pulls brake shoes tighter. Going in reverse pushes them looser.

    This is true if it's a floating mounting system... usually has an adjusting mechanism opposite the activating mechanism. Class 6-8 drum brakes are usually pin mounted... not floating so no difference in direction.
  • My 2006 Holiday Ambassador has drum brakes. If it sits a month or more with high humidity, the shoes (metallic I think) do rust to the drums. I gas it in D, gas in R, and back and forth till the rig will go! Haven't broken anything YET! Brakes are probably slightly warm when I park.
  • FWIW since I started doing the Air Brake System checks I've not had stuck shoe.
  • Mechanic came over, spent about 4 hours working on getting brakes free. Pulled rear tires to get brakes to release, told me to block tires and not use parking brake when RV sets for a period of time. So after all that and 400 Dollars to repair I am now fixed.......
  • KPruitt wrote:
    Mechanic came over, spent about 4 hours working on getting brakes free. Pulled rear tires to get brakes to release, told me to block tires and not use parking brake when RV sets for a period of time. So after all that and 400 Dollars to repair I am now fixed.......


    Unfortunately, the parking brake will still set when air bleeds down.

    Fred