Problems removing madrel - nut on pulley froze up


Old 04-14-12, 09:56 AM
Thread Starter
Join Date: Apr 2012
Posts: 2
Received 0 Votes on 0 Posts
Problems removing madrel - nut on pulley froze up

Hi everyone.

I am looking for advice on removing my mandrel assembly from my Craftsman riding mower.

Background: The bolts holding the mandrel assebly have all sheared off, so I need to replace the mandrel assembly.

The problem is I cannot get the pulley nut to turn (I am trying counterclockwise turning with my socket, so please let me know if this is one of the opposite haded nuts/bolts). Of course, with all of the bolts that hold the mandrel assembly to the deck of the mower, it is extremely hard to get any force to remove the nut (when I had the blade on it would turn when I tried to remove the nut, and even with a brick stuck under the deck to stop the blade, it still turned.

Any advice? I just want to get the mandrel out to replace it. But with this dumb bolt, I cannot even do that.

Thanks for any advice.
Sponsored Links
Old 04-14-12, 12:18 PM
cheese's Avatar
Forum Topic Moderator
Join Date: Jul 2001
Location: USA
Posts: 17,255
Received 22 Votes on 19 Posts
It's regular right hand threads. Use 4X4 lumber blocks or whatever it takes to chock the blade so it won't turn and you may need a breaker bar on the socket to get enough leverage to break the nut loose.
Old 04-14-12, 02:01 PM
31YTech's Avatar
Join Date: Feb 2008
Location: EveryWhere
Posts: 1,263
Received 0 Votes on 0 Posts
Hello Rob,

Another option is remove the deck from under the machine (fairly easy on these machines) then take it to any repair shop and let them use a air impact wrench to zip it off.

Good Luck
Old 04-16-12, 05:55 PM
Thread Starter
Join Date: Apr 2012
Posts: 2
Received 0 Votes on 0 Posts

Thanks for the advice guys. I ended up taking off the deck, loaded it in my truck (and since my local parts shop just closed by t he time I removed it), I tried removing the nut some more. I was able to get needle nose pliers under the mandrel in the screw hole and was able to hold it enough while turning the nut on top of the pulley. What a PITA to remove a simple nut from the mandrel!

Thanks again for the great advice.


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Ask a Question
Question Title: