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100 sickel mower question


OLD 10-20
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Have a model 100 sickel mower and need some input as to why its necessary to shim up the the gaurds to close up the gap between the ledger plate and the section knives ?    It was not necessary when it was a new machine .     I could just be overlooking some thing ?       The sickel  has been replaced already and with acres on it .   

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1 hour ago, OLD 10-20 said:

Have a model 100 sickel mower and need some input as to why its necessary to shim up the the gaurds to close up the gap between the ledger plate and the section knives ?    It was not necessary when it was a new machine .     I could just be overlooking some thing ?       The sickel  has been replaced already and with acres on it .   

The 484000R1 guards are/were malleable & the newer MC/MD series of guards are forged & don't bend worth a hoot. Long story made quite short.... with clean language.... broke a couple trying to get them too bend, before I knew what's up. Going on some advice, I cleared all the hardware off the slab, dismounted it from the mower, laid it on the concrete floor & found it looked like a Frito. Got a new slab from Rowse with the forged guards, adjustable hold downs, etc. Didn't have a problem after that.

Mike

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5 hours ago, OLD 10-20 said:

Have a model 100 sickel mower and need some input as to why its necessary to shim up the the gaurds to close up the gap between the ledger plate and the section knives ?    It was not necessary when it was a new machine .     I could just be overlooking some thing ?       The sickel  has been replaced already and with acres on it .   

Are you asking about with brand new guards, or the old guards with all the wear?  The clearance between knife and guard has to be tight for them to mow heavy, wet hay.

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How do you shim up the guards?  I've run a sickle mower for almost 50 years and never heard of doing such a thing.  If the space between the bottom of the guard and the section gets too wide you just give the hold down a whack with a hammer to push the sickle down.  I haven't used guards with ledger plates in 40 years, the double combine style guards or stubby guard work so much better.

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  • 2 weeks later...
On 8/15/2022 at 10:56 AM, 801486 said:

 

How do you shim up the guards?  I've run a sickle mower for almost 50 years and never heard of doing such a thing.  If the space between the bottom of the guard and the section gets too wide you just give the hold down a whack with a hammer to push the sickle down.  I haven't used guards with ledger plates in 40 years, the double combine style guards or stubby guard work so much better.

ad washers, tin strips, whatever works under the rear half of the rock guard .   The sickle sections are supposed to lay flat against the serrated ledger plates on the rock guards . I think these imported # 700  guards are not made with the correct cutting angle .         So I am going to change all of them with the MC 2041's   

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11 hours ago, OLD 10-20 said:

ad washers, tin strips, whatever works under the rear half of the rock guard .   The sickle sections are supposed to lay flat against the serrated ledger plates on the rock guards . I think these imported # 700  guards are not made with the correct cutting angle .         So I am going to change all of them with the MC 2041's   

All I've ever run are the double guards with no replaceable ledger plate, several years I mowed 100 acre 3-4 times a year with a 9'.  I tried riveting in a ledger plate once or twice and said never again.  Wouldn't even consider using them, let alone trying to shim them up.  Like I said the only thing I ever did to keep them close was hit the hold down.  I think Crary used to make adjustable hold downs I used on a windrower.

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Serrated sections are  top or bottom ? 
Serrated Ledgers? 

This what I did with my Foot New Idea 
Interesting , my new idea sayes to have knives parallel to ledger . Which I did do a lot of work to achieve that , I didn’t bend ledger up ,we machine the guard so they clamped perfect ( close as .02 with feeler gage ) . Pitched the rock guards down one notch from level . ( I thought that moving forward the stock would pull the sections down on ledgers). Can mow anything except vetch in second gear on the Farmall c . 
 

 

This is what  through me off ,I don’t know what I’m doing .When I talked to Webb ,he told me to pitch the cutter bar , section up . To me I thought that would lift the sections off the ledgers . For New Idea , I need to call them back cause that still baffles me may be the under serrated section .

 

i know you get them right and you can mow way later at night with heavy dew which never happens. 
 

Tried not to deviate 

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