Removing feather-edge panels without damage to arris rails

[curium]

I need to replace a fencepost. I can do this quite competently.

Problem is the fence post is part of a feather-edge fence using arris rails joined to the fence post in question by mortise-tennon joint. There are 6 arris rails , 3 each side, attached to this post.

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Use of a repair spur is not possible due to a shed and concrete base on my side of the fence post and a rose bed on the neighbours side. The post needs removing and replacing.

The post is rotten at the base. I am trying to avoid damage to the arris rails during removal of the post because I don't want to have to nail all the feather-edge panels to new arris rails and fear damage to the panels while removing them from the existing arris rails.

Can anyone advise on how I can remove the featheredge panels on either side of the post and then refit them once the new post is concreted in without damage to the arris rails?

A separate problem is creating the mortise in the replacement post once I've concreted it in place.

Any solutions?

 

[TwoTrowels]

Easiest way is to cut through the arris rails to free them from the post - remove post and concrete in its replacement and then re-attach arris rails with arris repair brackets.

http://www.toolstation.com/shop/Con...k/Arris+Rail+Bracket+300mm/d210/sd2797/p67763

 

[ladiesman020]

I want to ask this in a different way.
How to remove feather edge boards nailed in without out splitting, as to re-afix with screws

 

[Newboy]

Almost impossible to remove the featheredge - if you want to try then a broad pry-bar (the middle bar in this photo http://www.toolstation.com/shop/p38134?table=no ) may help. Locate the nails in each featheredge and hammer the bar in between the arrios and board and lever the board off. The chances of getting all the boards off without splitting are almost zero. The arris rails will come out of the mortices when you rock the damaged post backwards. Cut mortices into new posts before you erect them - use the old post to get the locations. Place the old rails into the mortices in the new post as you place it into the hole and then concrete in place.

Good luck!