[Shop-talk] lawnmower blades

[Jack Brooks]

That's how this enginerd does it, i.e., bench grinder, followed by a light
touch up with a file, then balanced on a nail.

Jack, PE

-----Original Message-----
From: shop-talk-bounces+jibjib=att.net at autox.team.net
[mailto:shop-talk-bounces+jibjib=att.net at autox.team.net] On Behalf Of Phil
Nase
Sent: Saturday, September 13, 2008 6:38 PM
To: scott.hall at comcast.net
Cc: shop talk
Subject: Re: [Shop-talk] lawnmower blades

I don't know how  sharp they should be.  I found the same thing on a new
John Deere tractor.  I assumed it was product liability they were trying to
avoid.

I sharpen mine on a grinder wheel and balance them with a nail in the vise.
Crude but good enough for my use.  I'm sure the more engineering talented
folks on the list will give better advice.

For me if the grass isn't browning at the tips they are sharp enough.

Phil Nase
Quakertown, PA
http://home.comcast.net/~philnasecpa/



On Sep 13, 2008, at 9:25 PM, scott.hall at comcast.net wrote:

> simple, I guess: how sharp should they be?
>
> the new husky rider's blades are...well, you can saw your thumb back 
> and forth pressing heavily and not even get a mark.  they're almost 
> rounded.  yes, I'm looking at the leading edge, not the trailing edge.
>
> I'd think that's for a reason because the thing is spankin' new, but 
> the more I think about it, the more I think they just skipped a step 
> in the assembly where they were supposed to sharpen them.
>
> for every other mower I've had, I just buy a new one when the old  
> one wears out.  these, I'll sharpen if I can.  so...uh, how?   
> dremel, grinder...?  I suppose razor sharp would be nice, but that'd 
> dull pretty quick, so what am I looking for as far as cutting power?  
> and I don't want to take off too much meat because I assume they 
> should also balance somehow, which brings up the next question, do I 
> need to balance them, and if so, just side-to-side, right?
>
> or should I leave them the hell alone and go bitch at the home depot 
> droids?
>
> and no, the manual does not make mention of this, save to replace the 
> blades when they appear worn.  the manual is thus far pretty useless.
>
> thanks.
>
> scott
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