Brake peddle return

I belive the spring is on the footvalve itself I'm not to keen on volvos but kw,pb,fl,and Mack all use that same foot valve and brake pedal mounts right to it so looks like your gonna have to replace the foot valve

 

I would fix it with a rubber strap and forget it..

 

There is a procedure for brake pedal height adjustment. The adjustment screw is at the top of the foot valve. it is an allen head screw with a 13mm locknut. Srew it in till you have .16 to .32 inch of free play.. That should fix it. Make sure your air pressure is up when you do it.. I had to do mine cause the guys in our shop were gonna go the
spring/ bungee cord route.. There is a right way to do most things and a wrong way to do everything.

 

yep, there is a spring on brake pedal, but with faulty spring brake lights are off becouse volvo use pressure switch

 

Hi publo been looking for your help.when the trailer brakes have a slow release, is there any posibility the foot valvle is the problem?Everytime i stop lets say on traffic lifgts,my trailer is not releasing brakes like its supposed to and its driving me nuts

 

if you push red knob air fills trailer tanks. If trailer looses air you need some time to wait till truck compressor builds pressure in trailer tanks.

 

I had same problem and new foot valve fixed it.

 

I think you are miss understanding the question. He wasn't talking about that. What he was talking about is sometimes what you stop at a light or stop sign and you lift you foot off the BRAKE PEDAL. the trailer brakes are slow to release