I am refurbishing a trailer which has been off the road for 5+ years so, have replaced all wheel bearings, brake cables, got the brake shoes re-lined, new coupling, new winch, new tyres, wheel refurb etc.

The trailer has a cable and brake bar set up. Twin axle so, the brake bar has 2 compemsators joining the 2 brake cables for each axle to the brake bar. I've replaced all the old rusted brake bar with brand new M10 and now bolted this to the coupling.

My question is around getting the brakes to pull off. Yes, there's springs on the brake shoes however, I'm concerned the weight and resistance of the brake bar is going to prevent the cables pulling back the brake bar to brakes-off (obviously don't want the brakes on all the time).

As the shoes are new, there is currently only around 5mm movement between brakes on and brakes off (and I suspect the workshop has put slightly thicker linings on than they should have).

Can anyone shed some light as to the set up on their trailers? I was wondering whether any additional spring is available, which can be attached to the brake bar to pull it back, when the coupling isn't exerting force to turn the brakes on. 2015 Range Rover Autobiography 4.4 SDV8