tag axle brake

[caymann]

My tag axle brake give out burning smell
It does lift up/dn using the tag axle switch by the driver panel
When i try to back up the MH the driver side tag axle was not rotating
How can i relieve the brakes on the tag axle?
thanks
jim

[Gary RVRoamer]

If the driver side wheel will not physically turn, it could be the brake has locked, or it could be a seized wheel bearing. Does that wheel turn ok when moving forward?

[caymann]

I was able to release the brakes by turning the adjusting nut clockwise.

A few things i noticed:

1. On the drive axle, there was no locking pawl so i was unable to retract the caliper piston and retract the brakes. I tried to rotate the adjusting nut but it didn't do anything. I wanted to lubricate the slack adjuster. What am i missing here?

2. I was also looking for a pressure release valve, so i can get excess grease off the caliper out (in case there was any). I didn't find such a valve. How else do i get the caliper piston retract?