Bell 50 ton Dumper - ADT

[mazdaparts]

Looks great, why the switch to the blue hoses? Did you loose any cycle speed on the dump cylinders?

[elliot330]

Originally Posted by mazdaparts

Looks great, why the switch to the blue hoses? Did you loose any cycle speed on the dump cylinders?

Hi & Thanks.

The blue hoses are polyurethane and much more flexible than the black nylon hoses, I will try and find black polyurethane for the final build after paint.

Ref cycle speed, I haven't lost any time, but this is mainly due to removing the Y piece from within the cab and replacing it with this external T piece. Hope that makes sense!

I also released or should I say, was told, that because I installed a filter between the tank and pump I was restricting the oil flow into the pump, I removed this and have turned the pressure back down to 12bar and everything is now quite quick. I've even restricted the amount of servo throw on the bucket in order to slow the bucket tipping, more like the 1:1 model.

[SmallHaul]

Originally Posted by elliot330

Hi & Thanks.

The blue hoses are polyurethane and much more flexible than the black nylon hoses, I will try and find black polyurethane for the final build after paint.

Ref cycle speed, I haven't lost any time, but this is mainly due to removing the Y piece from within the cab and replacing it with this external T piece. Hope that makes sense!

I also released or should I say, was told, that because I installed a filter between the tank and pump I was restricting the oil flow into the pump, I removed this and have turned the pressure back down to 12bar and everything is now quite quick. I've even restricted the amount of servo throw on the bucket in order to slow the bucket tipping, more like the 1:1 model.

Nice work on the hydraulic line setup.

Is the ID of the blue hose the same as the black hose? Are you no longer using a filter or did you just change where it is located in the system?

Nice Machine!

[elliot330]

Hi Smallhaul,

Both the blue and black hoses have the same internal diamter. I think it 2.5mm from memory.

To be honest, I haven't yet reinstalled the filter yet but it will be in the return pipe when I do..

Elliot

[Ultrashort]

Hi Elliot !

Please extend the hydraulic lines between front end and rear end (manifold and front end), otherwise you get any problems in difficult terrain. Especially, who tipped the front of the car in one direction and the rear vehicle in the opposite direction. Since the hinge is located and thus the hydraulic line to short, and could tear or be damaged.

Nice model, .....german engeneering at its best


Ultrashort

[jjackso5]

"Lil-giants" thank you for the web site. Very interesting machines.

Thank you,

Jim