3260 Deck Spindle Rebuild Help

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scaamp
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3260 Deck Spindle Rebuild Help

Postby scaamp » Sat Jul 13, 2019 11:09 am

Picked up a new to me cub 154 with a 3260 mower on it. The center spindle and pulley were shot. I ordered a new pulley, bearings, and spindle through HamiltonBobs. I’ve got it all together and the service manual says to torque pulley nut to 95-115ft/lbs. I can barely tighten it up without the bearings locking up. Is there a torque sequence for this? Torque down, back off, and re torque with some sort of lock washer?

Eugene
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Re: 3260 Deck Spindle Rebuild Help

Postby Eugene » Sat Jul 13, 2019 2:43 pm

https://www.messicks.com/cas/67061

There are several spacers between the bearings. They need to be in the correct order.

Have a 3260 and worked on several spindles over the years. Haven't had a problem torqueing down the spindle nut.
I have an excuse. CRS.

mozer71
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Re: 3260 Deck Spindle Rebuild Help

Postby mozer71 » Sat Jul 13, 2019 7:15 pm

Hi. I have an IHC 3260 deck. It was totally messed up when I got it, so I know what you are going through. The Timken type roller bearings require some preset torque but no where near what the pulley requires. I used precision shims to stack that balance and a short nut to lock. Then the pulley, key and top lock washer and tall nut. Even with that and the blade blocked-so it wouldn't spin- I have a special long wrench to hold that bearing nut. The top nut takes so much force that I have to play both wrenches. This is the major drawback of an otherwise great deck.

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Re: 3260 Deck Spindle Rebuild Help

Postby mozer71 » Sat Jul 13, 2019 7:25 pm

I should have read Eugene first

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Re: 3260 Deck Spindle Rebuild Help

Postby mozer71 » Sun Jul 14, 2019 11:31 pm

Hoping that you got it together well. My original arbor was so wallowed out at the key slot, I had to weld and grind the slot square. The whole time this wear was happening, it was boring out the pulley. So the measures I took were different than if it had been new parts. I made a new arbor when I should have been mowing. The dimensions to the pulley were different to compensate for the wear. There was no "step" , against which, to tighten the pulley. That was reason for the other nut. Before I forget to mention, the grease fitting atop the spindle is right angled. I suppose that made it easier for a grease gun but it isn't. Weeds and vines unwind that thing. Greaser with right angle head does fine with straight fitting.


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