Ed Hill

I am attempting to dismantle a Sitrex SM-150 finish mower in order to clean and paint the deck in hopes it will outlast me. I have had some success, but am stymied by the nut on top of the blade drive pulley. It resembles the hub nut on the old Sturmey-Archer 3 speed bicycle rear wheel. What sort of wrench do I need to take this thing apart? Or should I make a tool? Here is a photo so this question may make more sense.

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Ed

flman

Looks like you need a spanner wrench?

Morgan

either a spanner wrench or a hammer and a punch, either one will get it off

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""If you don't have dreams that are a little beyond your grasp, you have already started to die.""

78 acre hay farm
1965 John Deere 4020
John Deere 1209 Mower Conditioner
Woods MD 315 Batwing Bushhog
1952 8N Ford Tractor
1990 Yazoo 60" Deck with a 20 HP Wisconsin.
I work on a 1000 acre sod farm.

Ed Hill

OK, Morgan! Thank you! I'll attempt to find a spanner today.

Ed

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Ed