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Implement Alley Discussion Forum

anyone sharpen sickle blade knives?

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classicxl

03-22-2014 15:42:17
174.124.236.74



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Was wondering if anyone has had luck sharpening blades either on sickle mower or haybine, and what is best to use, ive got a spare cutterbar with a lot of dull knives.




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jCarroll

03-25-2014 06:15:24
99.88.140.78



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 Re: anyone sharpen sickle blade knives? in reply to classicxl, 03-22-2014 15:42:17  
angle grinder
much faster than V grinding wheel



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cumminsdeere

03-24-2014 23:30:43
70.208.18.131



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 Re: anyone sharpen sickle blade knives? in reply to classicxl, 03-22-2014 15:42:17  

Picture



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redforlife

03-24-2014 18:18:26
68.234.121.124



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 Re: anyone sharpen sickle blade knives? in reply to classicxl, 03-22-2014 15:42:17  
I sharpen sickle sections with an angle grinder. I even square up the gaurds with the same grinder. Ussually only touch them up 2 or 3 times before replacing with new. I use to always run revited sections. Finally went to a bolted sickle just last summer. Finally got tired of pounding rivets on a 9' sickle.



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Farmallb

03-23-2014 17:38:56
108.208.35.81



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 Re: anyone sharpen sickle blade knives? in reply to classicxl, 03-22-2014 15:42:17  
I sharpened mine for 50yrs. Last year, I had mine professionally sharpened by a sharpeniong service. 3 sickles cost $50. Made a wonderful distance.



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JD Seller

03-23-2014 13:56:59
208.126.196.144



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 Re: anyone sharpen sickle blade knives? in reply to classicxl, 03-22-2014 15:42:17  
The NH 489 sickle drive is not the strongest one other. So I would skip the sharpening and just install new sections. They are around a dollar each. That is not much money for "new".



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Leroy

03-23-2014 13:27:33
69.88.207.185



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 Re: anyone sharpen sickle blade knives? in reply to classicxl, 03-22-2014 15:42:17  
Cannot understand anyone NOT sharpening them. With the price of the sections it does not make any sence to me to change out sections that only need a touch up sharpening.



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Roger in Iowa

03-23-2014 07:46:07
166.181.80.253



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 Re: anyone sharpen sickle blade knives? in reply to classicxl, 03-22-2014 15:42:17  
Don't forget to sharpen the edges of the guards if they are rounded or replace them if too worn!

Also helps to sharpen the tip of the guard down to a pencil point.



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Dick2

03-23-2014 07:10:31
174.19.186.41



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 Re: anyone sharpen sickle blade knives? in reply to classicxl, 03-22-2014 15:42:17  
When I was a kid I used to turn the crank on the grinder while Dad sharpened the sickle blades. It took years before we got a grinder with a motor to sharpen sickle blades. The stone was "V" shaped so you could sharpen two sides at once. Haven't seen a "V" shaped stone in years, but they are probably still available.

I haven't tried it, but I think you might be able to sharpen blades with a 3" or 4" angle grinder.

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GordoSD

03-24-2014 18:10:32
216.106.249.118



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 Re: anyone sharpen sickle blade knives? in reply to Dick2, 03-23-2014 07:10:31  
You don't want an edge like a knife (v). You want the bottom of the section laying flat as it scissors with the guard plate.



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James22

03-23-2014 18:02:24
207.179.221.59



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 Re: anyone sharpen sickle blade knives? in reply to Dick2, 03-23-2014 07:10:31  
Ten years ago I attended a very large farm estate sale that had multiples of just about every tool you could imagine and the deceased owners obivously went to every antique auction and always bought home a truck load. I went for the tools and wanted to bid on a vice mounted on a concrete filled drum. Took a long time to get to the vice and just before it was a electric motor driven sickle sharper with a good "V" stone. Auctioneer couldn't get a bid and finally asked if someone would give a bid. I wanted to move on so offered two dollars and got stuck with it. Offered it free to the local blacksmith shop that occasionally sharpens sickles but they declined. Electrical cord is pretty poor shape. Seems there is still interest in this activity so perhaps it will eventually find a good home.

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Bret4207

03-23-2014 05:55:41
64.19.90.196



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 Re: anyone sharpen sickle blade knives? in reply to classicxl, 03-22-2014 15:42:17  
I bought a 2nd knife assy. I go through and replace ALL the knives and use the bolts. I also use the time the knife assy is out to check the guards and replace any that are or bent or otherwise screwed up, then I line all of them up with a string. Check all the hold downs too. Makes a big difference.



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Shetland Sheepdog

03-23-2014 05:46:26
71.168.74.3



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 Re: anyone sharpen sickle blade knives? in reply to classicxl, 03-22-2014 15:42:17  
Trade up to a discbine! LOL

Seriously, I use a 4&1/2" grinder, but I've seen old timers use a flat file!

I also have one of those "handy dandy" tools for replacing sections without removing the knives from the cutter bar.

Edit: Just to clarify what we're talking about
Section = triangular blade attached to knife/knives

Knife/knives = moveable bar that sections attach to

Cutter bar = stationary bar with fingers/guards that knives slide into

HTH, Dave
This post was edited by Shetland Sheepdog at 05:54:48 03/23/14.

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showcrop

03-24-2014 19:03:33
75.67.231.80



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 Re: anyone sharpen sickle blade knives? in reply to Shetland Sheepdog, 03-23-2014 05:46:26  
Quoting Removed, click Modern View to see

Dave, I was going to mention terminology, you beat me to it, except over here we have always called the bar and sections assembly the knife.



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Shetland Sheepdog

03-24-2014 19:08:10
71.168.74.3



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 Re: anyone sharpen sickle blade knives? in reply to showcrop, 03-24-2014 19:03:33  
Colin, Ya notis I did give ya the option! LOL, Dave



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showcrop

03-24-2014 19:01:23
75.67.231.80



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 Re: anyone sharpen sickle blade knives? in reply to Shetland Sheepdog, 03-23-2014 05:46:26  
Quoting Removed, click Modern View to see

Dave, I was going to mention terminology, you beat me to it, except over here we have always called the bar and sections assembly the knife.



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Stumpy(NH)

03-23-2014 16:18:05
64.222.109.150



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 Re: anyone sharpen sickle blade knives? in reply to Shetland Sheepdog, 03-23-2014 05:46:26  
LOL! "Hand Dandy Tool" I have one too. Now I use the bolted sections. Find a good NH nugget now and again...little ones fly forward out of the rolls like a cannon shot! HAHA!



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Shetland Sheepdog

03-23-2014 16:25:53
71.168.74.3



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 Re: anyone sharpen sickle blade knives? in reply to Stumpy(NH), 03-23-2014 16:18:05  
I'm running a NH 408 discbine now, so I only have to worry about sections on my old JD # 8 sicklebar mower!

The "handy dandy" tool is a pain, unless you have the right socket on an 18" breaker bar!



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donjr

03-22-2014 22:27:01
71.246.70.39



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 Re: anyone sharpen sickle blade knives? in reply to classicxl, 03-22-2014 15:42:17  
Back in the day when I still had a sickle type haybine, I learned I was quicker just replacing the sections than sharpening them. I had a jig set up that all I had to do was place the section in a slot on it, and shear the rivets by hitting the rear edge of the section with a hammer. Flipping it flat, the old rivet punched out of the back through a hole in the jig. New rivets and sections were placed on the back, and riveted into place with an air impact gun and a bit with a dimpled end to form the new rivet head. I usually had to rebuild several knives a year, and found it only took about an hour to do it that way.

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Don-Wi

03-22-2014 19:46:16
66.87.77.16



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 Re: anyone sharpen sickle blade knives? in reply to classicxl, 03-22-2014 15:42:17  
For how quickly you can replace the sections with new and use bolts, I'd just replace them.
Donovan from Wisconsin



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DeltaRed

03-22-2014 18:19:39
65.100.146.210



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 Re: anyone sharpen sickle blade knives? in reply to classicxl, 03-22-2014 15:42:17  
You can even 'sharpen' top serated.They wont last as long,but they will get you by.Sharpen some and find out.Just use a common 4 1/2" grinder



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55deere70

03-22-2014 17:31:29
66.189.10.65



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 Re: anyone sharpen sickle blade knives? in reply to classicxl, 03-22-2014 15:42:17  
As long as they are bottom serrated sections you should be able to sharpen them. I use don't use top serrated sections because you can't really sharpen them with any success. I use a 4 1/2in. grinder.



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Pitalplace

03-22-2014 16:27:20
70.41.130.173



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 Re: anyone sharpen sickle blade knives? in reply to classicxl, 03-22-2014 15:42:17  
I have my dads old sickle sharpener. If you are located close to NE, you could come use it.



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Alan K

03-22-2014 16:25:43
208.83.187.208



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 Re: anyone sharpen sickle blade knives? in reply to classicxl, 03-22-2014 15:42:17  
My dad had a special wheel to put on the old grinder in the shop for sharpening the ones for the sickle mower. It was tapered upwards in the middle so it fit in between the sections. I still have it and use it some. It workes ok to get by a while rather than replacing all the sections. What do you have for implement?



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classicxl

03-22-2014 16:30:20
174.124.236.74



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 Re: anyone sharpen sickle blade knives? in reply to Alan K, 03-22-2014 16:25:43  
489 new holland haybine



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kevinj54

03-22-2014 16:12:37
50.105.82.102



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 Re: anyone sharpen sickle blade knives? in reply to classicxl, 03-22-2014 15:42:17  
I had to do one last year and used a fine flap wheel on the 4 1/2" grinder.



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504

03-22-2014 20:34:31
199.127.54.155



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 Re: anyone sharpen sickle blade knives? in reply to kevinj54, 03-22-2014 16:12:37  
I have a sharpener in the shed, want to buy it?



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