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pitman arm

A

Anonymous-0

Well-known Member
i've got a few sickle mowers(16H/M,16A,16B, s4-2,b23) with broken pitmans, what type of wood is best for making replacement pitmans? and why do they break(other than age)? and why are some made of steel(my dad has ferguson mowers, some with wood and some steel)
 
Seasoned hickory is best for this type of situation. I got to help my Grampa make a pitman driver back in the late '50's for the 27V mower on the SC. He used a piece of oak for that one. As I recall, it took about 2 hours to fabricate & install. This was because he went in to the dealers to get a stick & all of them didn't have straight grain--he just wouldn't buy the stick from the dealer. It's still in use on that mower.
Most sticks broke from age [dry rot] & getting sticks/ stones. foreign material between the teeth on the bar.
I think IH used to use ash for the sticks.
 
For our Cub, my old man once made one from a boat oar with a split blade--just cut the shaft and squared and drilled the ends. Ran for years in light service until we got a belly mower (and a 140 to go with it.) Now they are mostly laminated, so I don't know if it would work as well.
 
The pit-man is the weak link in the system and is that way as a safety for other high priced parts. Most of the one that have a steel pit-man are ones that where replaced by some one that did not understand the wood ones are there for a reason. You can still buy pre-made pit-mans for a lot of farm and home stores and also the Case/IH dealer. Most any straight grain hard wood will make a good pit-man and many years ago I took a limb off a hickory tree and made one. Even left most of it round and left the bark on to boot
 
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