That is kinda what I had in mind only make it completly a mechanical brake without any hydraulics for the two front wheels. When I mentioned Fred flintstones brakes I had got my pt on a hill where it would coast down and I put both feet on the two front wheels to see if I could stop the machine from leaking down the hill. I couldn't completly stop it but I could slow it down quite a bit so I thought that with a scrub brake with mechanical linkage and a lever to apply the brake with your hand and the handle being longer from the pivot to the handlethan from the pivot to the brake pad [shoe] , that would give you more leverage. I beleive this would work at least for the green machines. Put a spring on the brake shoe where it connects to the linkage to let it have some give that way you could fix a notch in the handle so that you could fix a hinged peice of metal that would fall down on the handle and catch in the notch if you wanted the brake to set and hold without you having to hold the handle all the time. It would be a help when using the minihoe while on a hill, or any other job where you wanted the machine held in a stationary position. I'm glad someone else has the same idea. Now who's got the tuit to duit.
Put PT422 on Side (Kinda)
- Thread starter BobRip
- Start date
- Views: 6512
That is kinda what I had in mind only make it completly a mechanical brake without any hydraulics for the two front wheels. When I mentioned Fred flintstones brakes I had got my pt on a hill where it would coast down and I put both feet on the two front wheels to see if I could stop the machine from leaking down the hill. I couldn't completly stop it but I could slow it down quite a bit so I thought that with a scrub brake with mechanical linkage and a lever to apply the brake with your hand and the handle being longer from the pivot to the handlethan from the pivot to the brake pad [shoe] , that would give you more leverage. I beleive this would work at least for the green machines. Put a spring on the brake shoe where it connects to the linkage to let it have some give that way you could fix a notch in the handle so that you could fix a hinged peice of metal that would fall down on the handle and catch in the notch if you wanted the brake to set and hold without you having to hold the handle all the time. It would be a help when using the minihoe while on a hill, or any other job where you wanted the machine held in a stationary position. I'm glad someone else has the same idea. Now who's got the tuit to duit.
Gravy
Platinum Member
JJ,
I'm not sure you could rely on a wedge on a chain to drop in place securely enough. I think I'd want some kind of guide to make sure it didn't get spit out, and a way to force it into place.
A simpler alternative to hydraulics and automatic application might be spring loading and a locking pin to hold it open. Yank the pin (maybe with a cable attached to a "panic handle") and the wedges or shoes jam the tires.
Let's keep the ideas coming. Maybe we'll come up with something simple enough to actually build!
Gravy
I'm not sure you could rely on a wedge on a chain to drop in place securely enough. I think I'd want some kind of guide to make sure it didn't get spit out, and a way to force it into place.
A simpler alternative to hydraulics and automatic application might be spring loading and a locking pin to hold it open. Yank the pin (maybe with a cable attached to a "panic handle") and the wedges or shoes jam the tires.
Let's keep the ideas coming. Maybe we'll come up with something simple enough to actually build!
Gravy
Gravy
Platinum Member
JJ,
I'm not sure you could rely on a wedge on a chain to drop in place securely enough. I think I'd want some kind of guide to make sure it didn't get spit out, and a way to force it into place.
A simpler alternative to hydraulics and automatic application might be spring loading and a locking pin to hold it open. Yank the pin (maybe with a cable attached to a "panic handle") and the wedges or shoes jam the tires.
Let's keep the ideas coming. Maybe we'll come up with something simple enough to actually build!
Gravy
I'm not sure you could rely on a wedge on a chain to drop in place securely enough. I think I'd want some kind of guide to make sure it didn't get spit out, and a way to force it into place.
A simpler alternative to hydraulics and automatic application might be spring loading and a locking pin to hold it open. Yank the pin (maybe with a cable attached to a "panic handle") and the wedges or shoes jam the tires.
Let's keep the ideas coming. Maybe we'll come up with something simple enough to actually build!
Gravy
Barryh
Veteran Member
- Joined
- Jul 5, 2005
- Messages
- 1,588
- Tractor
- Former owner of a P T -180 / Kubota BX-1500 .. A Craftsman Yard Tractor / John Deere 140 H-1 / Cub Cadet 108. And now ( Little Red ) a Power Trac 1425
First the question would be, is this something you would like to use for just emergency stopping? Which is my interest, and more like what J.J. is describing, or something two fold for emergency braking, and also when using attachments like the mini hoe. /forums/images/graemlins/ooo.gif
Barryh
Veteran Member
- Joined
- Jul 5, 2005
- Messages
- 1,588
- Tractor
- Former owner of a P T -180 / Kubota BX-1500 .. A Craftsman Yard Tractor / John Deere 140 H-1 / Cub Cadet 108. And now ( Little Red ) a Power Trac 1425
First the question would be, is this something you would like to use for just emergency stopping? Which is my interest, and more like what J.J. is describing, or something two fold for emergency braking, and also when using attachments like the mini hoe. /forums/images/graemlins/ooo.gif
Gravy
Platinum Member
Toy,
That sounds like it should work as a service brake. It might be a challenge to rig a linkage that would be quick and easy to grab for emergencies, but I think that any additional braking would be an improvement.
Hey, I just had a thought - it might be possible to use something like a mechanical clutch pedal linkage on an old truck or ag tractor. Put the pedal at the back of the footwell so you could stomp it with your heel. I'll have to look and see whether there is room for a pivot tube across the tub either inside or outside of the front wall. Hmmm....
Gravy
That sounds like it should work as a service brake. It might be a challenge to rig a linkage that would be quick and easy to grab for emergencies, but I think that any additional braking would be an improvement.
Hey, I just had a thought - it might be possible to use something like a mechanical clutch pedal linkage on an old truck or ag tractor. Put the pedal at the back of the footwell so you could stomp it with your heel. I'll have to look and see whether there is room for a pivot tube across the tub either inside or outside of the front wall. Hmmm....
Gravy
Gravy
Platinum Member
Toy,
That sounds like it should work as a service brake. It might be a challenge to rig a linkage that would be quick and easy to grab for emergencies, but I think that any additional braking would be an improvement.
Hey, I just had a thought - it might be possible to use something like a mechanical clutch pedal linkage on an old truck or ag tractor. Put the pedal at the back of the footwell so you could stomp it with your heel. I'll have to look and see whether there is room for a pivot tube across the tub either inside or outside of the front wall. Hmmm....
Gravy
That sounds like it should work as a service brake. It might be a challenge to rig a linkage that would be quick and easy to grab for emergencies, but I think that any additional braking would be an improvement.
Hey, I just had a thought - it might be possible to use something like a mechanical clutch pedal linkage on an old truck or ag tractor. Put the pedal at the back of the footwell so you could stomp it with your heel. I'll have to look and see whether there is room for a pivot tube across the tub either inside or outside of the front wall. Hmmm....
Gravy
Barryh
Veteran Member
- Joined
- Jul 5, 2005
- Messages
- 1,588
- Tractor
- Former owner of a P T -180 / Kubota BX-1500 .. A Craftsman Yard Tractor / John Deere 140 H-1 / Cub Cadet 108. And now ( Little Red ) a Power Trac 1425
The wedge idea is a good one, that can be expanded on for simple emergency stopping. Much less time consuming, and easy to make. Just my 2 cents. /forums/images/graemlins/smirk.gif
Barryh
Veteran Member
- Joined
- Jul 5, 2005
- Messages
- 1,588
- Tractor
- Former owner of a P T -180 / Kubota BX-1500 .. A Craftsman Yard Tractor / John Deere 140 H-1 / Cub Cadet 108. And now ( Little Red ) a Power Trac 1425
The wedge idea is a good one, that can be expanded on for simple emergency stopping. Much less time consuming, and easy to make. Just my 2 cents. /forums/images/graemlins/smirk.gif