'30 Brake Cross Shaft

C

Curtis in MA

Senior Member
My brake pedal does not return all the way when stopped so I first disconnected all the rods from the cross shaft and removed the brackets to see if the bushings were worn. They looked fine so I reinstalled the brackets.
When I rotate the cross shaft forward by hand, as if the brakes are on, the cross shaft hits the radius rods.
How much clearance should there be from the CS to the radius rods?
How much travel should there be in the clevises?
 
First, try oiling the bushing on the peddle shaft. Or,You need an after market coil return spring hooked from your brake peddle to somewhere on your chassis to pull the break peddle back. Sound's mickey mouse, but it works.
 
glenn in camino said:
First, try oiling the bushing on the peddle shaft. Or,You need an after market coil return spring hooked from your brake peddle to somewhere on your chassis to pull the break peddle back. Sound's mickey mouse, but it works.
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Works for me. I have one on each of my pedals clutch and brake. I made a tab that uses one of the clutch bell housing screws, both springs hook to it. Keeps the slack out and pedals back instead of bouncing around.
 
If things are correct in all respects, no springs are required. The brake springs at the shoes and on the brake pull rods get the job done nicely. Curtis, most likely the front spring is weak which lowers the frame and transmission. Rear spring can do the same. Know that the radial movement of the cross shaft is slight. If the front mount is holding the nose of the engine up too far, the rear of the trans.tips down. Do a search for setting up brakes, everything has been covered in depth.
 
100IH said:
If things are correct in all respects, no springs are required. The brake springs at the shoes and on the brake pull rods get the job done nicely. Curtis, most likely the front spring is weak which lowers the frame and transmission. Rear spring can do the same. Know that the radial movement of the cross shaft is slight. If the front mount is holding the nose of the engine up too far, the rear of the trans.tips down. Do a search for setting up brakes, everything has been covered in depth.
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agreed 100% - fix the brakes correctly and find out why they dont pull the pedal back hard.

frame sag can also bind up the shaft as well.
 
Curtis in MA said:
M
When I rotate the cross shaft forward by hand, as if the brakes are on, the cross shaft hits the radius rods.
Click to expand...

If the lower part of the cross shaft "dip or bulge" is hitting the radius rods, perhaps it is traveling too far in that direction. If that is the case, I would also check to make sure the cross shaft is starting out in the correct at=-rest position, which is the starting point to adjusting brakes any way.

With the pedal fully retracted as if no pressure is applied and with it up against its stop, the cross shaft arms on each side that connect to the brake rods should be pointing straight up and down. Not at an angle.

Just something to check.
 
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