Never-seize on rotary cutter blade bolts

[Hobiemark.]

I'm about to change out the blades on my Land Pride RCR1248 rotary cutter. The spec calls for 450 ft/lbs torque setting on the blade bolts. I thought that I came across a post somewhere that recommended against using an anti-seize compound on these bolts.

I would think that regardless of whatever anti-seize that was used on these bolts, if they are torqued back down to spec, they would stay put and not loosen with use.

Any thoughts on this?

 

[chim]

Pretty sure that if they are "torqued back down to spec" you'll need a different spec. The lubrication provided by the anti-seize will cause the bolts to be under too much tension unless the torque is reduced.

 

[Hobiemark.]

Pretty sure that if they are "torqued back down to spec" you'll need a different spec. The lubrication provided by the anti-seize will cause the bolts to be under too much tension unless the torque is reduced.

Chim, thanks for the response. I think this is what I mistook when I read about never-seize on blade bolts. I will stop in to my local dealer and see what torque their service department recommends or even if they advise against using anti-seize on the bolts.

 

[UpNorthMI]

I use anti seize on blade bolts, they normally have castle nuts and cotter pins too. I don't own a torque wrench that covers the 400 ft/lb plus range so I just tighten them down with my 3/4 drive 4' breaker bar to a point where the castlenut hole lines up and I'm convinced they will not come lose. Never had an issue so far with any of them.

I've spent much more time and issues cutting off old bolts that were never lubed or were totally seized from cutters!

 

[B737]

I have an RCR1242, I used anti seize on mine. I needed a torque multiplier to get the things off. I definitely did not want to reinstall them at the specified value. I just cranked them down as far as they would go when the 1/2” impact stopped and called it done. Machine runs smoother with the new blades.

 

[Hobiemark.]

Gentlemen,

I appreciate your responses and I just wanted to follow up.

After a call to both my local dealer and to Land Pride, their recommendations are to torque the bolts to the original value even with anti-seize on the bolt threads.

My approach will be to use a 3/4" impact driver until the impact stops and then keep a close eye to make sure the blade nuts haven't loosened with use.

I think the never-seize sure will make a big difference and a lot less swearing when it comes time to change the blades out again.

 

[Pau7220]

I use Never-Seez all the time and a 1/2" drive IR 231 adapted up at 150 psi until it stops. Never had one loosen up or strip.

 

[SDT]

I'm about to change out the blades on my Land Pride RCR1248 rotary cutter. The spec calls for 450 ft/lbs torque setting on the blade bolts. I thought that I came across a post somewhere that recommended against using an anti-seize compound on these bolts.

I would think that regardless of whatever anti-seize that was used on these bolts, if they are torqued back down to spec, they would stay put and not loosen with use.

Any thoughts on this?

I use anti sieze on just about everything including blade bolts and have for decades.

When buying a new rotary cutter, I remove the bolts before first use and anti sieze to facilitate bolt removal in the future.

SDT