[RE-wrenches] Battery Post Galling

William Miller william at millersolar.com
Tue Jun 7 00:08:40 PDT 2011


Benn:

You must break the bolt or cut it.

I belive Unirac has a white paper on galling.

We use anti-seize on any bolt we can not slide out sideways easily.  This 
includes any battery bolt and any non-toggle racking bolt other than end bolts.

William


At 11:32 PM 6/6/2011, you wrote:
>So this was a first for me today...
>
>I've had racking bolts gall before, but today while bolting a battery 
>interconnect cable on a battery post, the nut galled about 3/4 of the way 
>down the post.  (Threaded 'bolt' posts, not single or double hole flag posts)
>I've gotten pretty good about using anti-seize on all stainless racking 
>bolts but never considered using it on battery post bolts before.
>
>I spun the nut on about half way by hand then got a couple cranks with the 
>wrench when the nut suddenly tightened up.  Thinking that the thread might 
>have been damaged, i instinctively began to back it off but got less than 
>an eighth of a turn out of it and it was completely seized!
>
>Two things...
>
>1) while i go re-read all my info on galling, is it common practice 
>amongst you battery savvy wrenches to always use anti-seize on battery 
>posts?  I'm thinking that it is for me, now!  (only on the threads, not 
>between the lug and the post)
>
>2) now that i have a nut seized 3/4 of the way down the post, and the lug 
>is still quite loose, what would be the best course of action?
>
>I did email the mfgr and am waiting for their reply, but in the meantime, 
>solutions i'm considering... using a hacksaw to cut the nut off and 
>hopefully be able to re-cut the threads, weld the lug onto the post (Bob 
>E., i believe you mentioned welding 'interconnects', would this be a 
>solution here?)... thats all i've got.
>
>hmmmmmm...
>benn
>
>DayStar Renewable Energy Inc.
>benn at daystarsolar.ca
>780-906-7807
>HAVE A SUNNY DAY
>
>
>
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William Miller
Miller Solar
Voice :805-438-5600
email: william at millersolar.com
http://millersolar.com
License No. C-10-773985
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