310D Wheel Torque Formula

[labdad]

Trying to decipher the proper wheel nut/cap screw torque value/procedure for my 1994 310D. The technical manual shows what I assume to be torque and turn values, but hey, I’m an airplane guy! Given what you see in the manual excerpts, what would the procedure be, and, if it exists, a target torque value? Thank you.

 

[Diesel Dave]

Trying to decipher the proper wheel nut/cap screw torque value/procedure for my 1994 310D. The technical manual shows what I assume to be torque and turn values, but hey, I’m an airplane guy! Given what you see in the manual excerpts, what would the procedure be, and, if it exists, a target torque value? Thank you.

View attachment 296529

Welcome to HEF Iabdad .
No formulas ,no torque turn required.
The 2nd pic that you provided ,That would be the torque specs.
Exact same information is in the Operator’s manual.
Recheck after 100 hours.

 

[Nige]

I'm with Dave, don't see any particular problem with the torque settings in the photos you posted unless you are more familiar with a torque value expressed in the form X lb ft +/- Y as a tolerance.?

 

[labdad]

Thank you. Yes, I am more familiar with a given value, not something like 425 + 125 -85 lb-ft, etc. My question still begs, how are those numbers applied?

 

[JL Sargent]

So on the rear shoot for 425 ft lbs. If you are a little over (up to +125) or a little under (-85), that's ok.

 

[labdad]

Roger, Wilco!

 

[Nige]

Not rocket (or even aeronautical) science either way.........

Another way of expressing it is aim for a torque value of somewhere in between 340 and 550 ft lbs with a target value of 425 ft lbs.

 

[labdad]

Alright, I got it and can now sleep tonight!