Homemade log processor saw issues

[treequip]

Linky no worky

[Chipy]

Works when I click on it. Am I sharing the right link off photo bucket? It's the "direct" one that I'm copying the link from

[Chipy]

http://vid29.photobucket.com/albums/c251/adamchippy/Mobile%20Uploads/trim.5E94B123-FB6D-43AA-A655-C428BFE2DCED.mp4

 

http://vid29.photobucket.com/albums/c251/adamchippy/Mobile%20Uploads/trim.25B14BFE-8F04-497A-A4E6-3EA07CF536E1.mp4

Edited March 11, 2016 by Chipy

[Chipy]

That work?

[bilke_user]

That work?

 

The link does......

Edited March 11, 2016 by bilke_user
finished watching 2nd video

[Justme]

It looks like the bar is pulling itself into the log & not being controlled by the ram.

 

Is the chain ok?

 

Is the ram set to push the saw down into the log or hold it up?

 

IE if your pushing the the saw can pull its self into the log. If holding it up then all you need to do is control the ram emptying speed.

 

Edit to add,

 

Just looked again at the videos.

 

You have the ram set to push it into the log. Problem is it can move out further under its own weight or the chain pulling it into the log.

 

Use a ram with power in & out so the decent is controlled.

Edited March 11, 2016 by Justme

[Breezeblock]

the problem comes from working the ram and the motor in parallel until you either limit the pressure reaching the ram or separate it from the motor pressure you are wasting your time in my opinion .how much pressure can the motor take and what is the relief valve set to also how much slop is in the linkage it may help to reduce this to stop it from pulling itself further into the log

[Justme]

the problem comes from working the ram and the motor in parallel until you either limit the pressure reaching the ram or separate it from the motor pressure you are wasting your time in my opinion .how much pressure can the motor take and what is the relief valve set to also how much slop is in the linkage it may help to reduce this to stop it from pulling itself further into the log

 

 

You can pull a single acting ram out easily when its set to power extend. I am positive that this is what is happening. All that is stopping the saw falling into the log is the spring. Its not getting to the stage that the ram is pushing the saw into the wood. Its being pushed against the spring pressure till the chain bites then its pulling in to the log.

 

Change to a double acting ram (it even looks like it is one with a blanking plug in the port) & fit a spool block for it so you can control the decent.

 

Try it by pinching a service off another item to prove it.

 

The flow needed for that ram is so small it wont be the issue. That ram only holds around 0.5L full range.

[Chipy]

Thanks for all the advice I'm gong to spend next week trying to sort it!

[drythropple]

Thanks for all the advice I'm gong to spend next week trying to sort it!

I think the answer to your problem would be to fit the saw control valve as fitted to the Kesla and Patu stroke delimbers

This valve splits a small portion of the saw motor flow to the double acting ram that controls the saw rise and fall, it is adjustable to control the speed of fall and when your control lever is pushed to rise it cuts off the oil flow to the saw motor, no blown seals!

Caladonian forestry services are the agents for Kesla and are very helpful