trans-brake

[macksstreetrod]

Hey gang
i have a 2-spd-pg ,with brake...most likely a pro brake i have ist but not reverse.. my ques. is are the plungers spring loaded,in the brake and engage when you hit the button ,then pop back out...mine does not..if i pull plunger out by hand and hit the button it goes in but doesn't com back out,, have tried in nutr. and rev. no reverse..
Dale

[fishman1]

A pro brake works by either having it in neutral or reverse and usuing the trans brake button at the same time........not sure if u r depressing the button thought i would throw that in..........and the plunger on the solenoid doesn't depress if u r press the button and let it off.........only when u actually use it does

[sp2816]

Dale,
The spool valve on my full tree brakes are spring loaded and I think that the ones on a pro tree brake are also. Was the transmission working before or did you just get this one? If you just got this one, I would unscrew the transbrake solenoid and make sure that the spool valve is there. You will need to drain some fluid or have the rear of the transmission higher than the front. Maybe somebody went to change the solenoid and the spool valve came out and didn't get replaced.

Bill Mitchell

[macksstreetrod]

just got this one..cant beleive the seller AT ALL.. Iwas dumb enough to belive him...There is no pre load the sol plunger it moves back an forth freely if i pull it out by hand then hit the button it goes in and stays even when you let off the button....still no rev. The sol unscrews ?dont have to take off pan?
Thanks

[sp2816]

To see if the spool valve is under the transbrake solenoid, you do not have to remove the pan. The solenoid will unscrew and you should see the valve. I use a magnet to pull it out if it won't spring out. If the valve isn't there, then you will have to pull the pan to see exactly which transbrake valve body you have, so that you can replace the valve (not interchangeable between brands) or the complete valve body.

Since your solenoid will go in (reverse should be working even if there isn't a spring to make it come back out and release reverse) and you don't have reverse it makes me think that the spool valve was left out or is not the correct one for the valve body.

Bill Mitchell

[macksstreetrod]

Thanks Bill
That give me something to work whth will pull it out first thing... trying to get going for sat. big show down here this week....will order one no problem just wanta be sure . Ihave 1-st so makes me think its the brake.
Dale

[kwkracing]

a fluid release pro tree vb does not use a spring, to make it spring return. such as a hipster by hughes and bte pro brakes.

[jmarksdragster]

Not all brakes use a spring, some are fluid release. Some pro-tree brakes also require case mods, and won't work right without them. If you pull it out at some point, see if it has the hole pointed out here. If it does, it needs case work.


http://i287.photobucket.com/albums/ll150/jmarkaudio/APG-28999PTK_Pro_Tree_Transbrake_Ki.jpg

[kwkracing]

so does the tranny not work? what is the problem?

[sp2816]

He stated that he just got the transmission and it has 1st, but no reverse. The solenoid will activate and go in, but there is not any reverse at anytime and the plunger will not come back out. It could be like Mark said that the case is needing the extra holes drilled to pressurize reverse (the case mods that I had seen were for extra dump for the Pro-brake) or the spool valve could have been left out completely.



Bill Mitchell

[macksstreetrod]

Hey guys...thanks for the help
pulled the sol seams to be fine, pulled the shaft out, there is a spring in the end of it and has an adj screw on the other...with the sol where it was their was no tension at all. seams to me when sol is screw in ageist the shaft and spring it should push sol out then when you press button it goes in....i adj.to where sol plunger is pushed out but still has a little bit of travel before it hits the shaft..going to try that and see .....thanks for replying
Dale

[hammertime]

Hey guys...thanks for the help
pulled the sol seams to be fine, pulled the shaft out, there is a spring in the end of it and has an adj screw on the other...with the sol where it was their was no tension at all. seams to me when sol is screw in ageist the shaft and spring it should push sol out then when you press button it goes in....i adj.to where sol plunger is pushed out but still has a little bit of travel before it hits the shaft..going to try that and see .....thanks for replying
Dale

Are you sure it has the right length tbrake sol on it ? They do make different ones.

[kwkracing]

can you tell us about the tranny? did you just put it together? Did you buy it used? who put it together? This is a simple problem but we need a solid place to tell you to start looking. Depending on the year of the case............................ you probably have reverse flowing in the wrong hole were the early model rear pump was, making for no reverse when a transbrake vb is used, transbrakes all use the latemodel cases with reverse feed hole near the bottom not the top. When using a 62-64ish case you need to plug the origonal hole and drill it in the latemodel spot. I could fax you pic if needed.


Keith

[macksstreetrod]

got it used from someone you cant trust ,no sense in even asking them...I pulled the sol out shaft is in...has spring on one end and an adjustment screw on the other ...I measured all together and there is no way it was pushing the shaft when u hit the sol ..so i backed of on the adj. screw to where there is about 40-50 tho.space between sol & shaft..now when I hit the button it pushes shaft in ...
goes in revere now when i press brake seems to be no strain in rev. but not sure of clearance should have between sol & shaft?
try to give it a try to night
Dale

[cepx111]

That black cat scares me....

[kwkracing]

i think thats a dog

[macksstreetrod]

My ex-wife thinks were both dogs :roll: ..thanks again guys...thanks a bunch for the help
Dale

[nova7415]

That black cat scares me....It looks more like a dog to me :shock: .