This is a genuine OEM sourced lock nut designed for use with Toro snow blowers/throwers. It is a standard hardware which has multiple applications based on your unit. Please refer to diagrams for proper application. It is made out of metal and it is sold individually. You would need a wrench to tighten/loosen this nut.
The Toro 620 models shear pin are hard to replace. Once you get broken pin out you need to tape in the new bolt so when you turn the rotor to opposite side to but on nut with long nose pliers the bolts won\'t fall out. Long extended sockets needed on both nut and bolt end
Good luck
Snow blower has 2 separate augers attached to the auger shaft by a bolt and locking nut. I used a small piece of electrical tape to hold the bolt in place while I attached the nut from the opposite side of the shaft. Then I used two ratchets to hold one side while tightening other side, donGÇÖt forget to wear gloves.
Aligned the hole on the impeller shaft with the hole in the impeller and inserted the bolt, threaded the lock nut and lightly tightened the nut using a wrench and socket. I could not find the proper torque anywhere, so I simply snugged it up as t not apply any longitudinal stress on the shear bolt.
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(1979)_WW_7.gif "Part Location Diagram of 3296-42 Toro Nut-lock, Ni")
(1979)_WW_7.gif "Part Location Diagram of 3296-42 Toro Nut-lock, Ni")
