Shifting with bad clutch brake?

Right! One should never use the clutch brake while shifting.

 

if it is releasing at the top of the pedal the clutch is never fully disengaging. Get it adjusted properly before it is gone.

 

It sounds like it is already gone if it is slipping like that. I'd try adjusting it first and see if it helps. Clutch brake only comes into play last 1/4 of travel just before the floor

 

There should be 1/4 to 1/2 inch freeplay at the top, even on hydraulic actuated clutches...definitely needs adjusted....why use a clutch when shifting anyway?

 

It is actually gone, better nose it towards the shop before having to pay for the wrecker to get you moving again.

 

Clutch is out of adjustment.

If the brake is bad it’s hard to get it in gear at a stop. Usually gotta jam it and it will grind a little.

 

it Sounds like you may have more of a problem than just a clutch out of adjustment. The new hydraulic systems are supposed to have a certain amount of self adjustment.

When splitting up or down, it needs to break torque for a moment. This will unload the transmission and gears. That will allow for the overdrive gear to move out of the way. This is air operated, if it is hanging up you may have a bad actuator or an air leak in that part of the system. Have never had to use the clutch to split on any 13,15 or 18 speed. All throttle control. Then float the rest once moving.