Torque settings and leverage

   / Torque settings and leverage #1  

dennis52

Gold Member
Joined
Jan 27, 2011
Messages
323
Location
Queensland Australia
Tractor
Kioti DS4510HS , Kubota B7100
The recommended toque setting for my DS4510 rear wheel bolts are about 200lb/ft . The loader to frame fasteners also have high torque settings.

I have a 1/2'' drive torque wrench that is only calibrated to 100lb/ft.

I do not particularly want to buy another torque wrench so I have been tightening the 24 mm head bolts with a one ft swivel bar and 1/2'' drive using as much force as I can.

My concern is that I am not producing enough torque to achieve the required setting .

As an approximate rule and based on an average man's full strength what length of bar (or pipe on the end of the bar) on a 24mm bolt head would be adequate to generate 200ft/lb ?
 
   / Torque settings and leverage #2  
The recommended toque setting for my DS4510 rear wheel bolts are about 200lb/ft . The loader to frame fasteners also have high torque settings.

I have a 1/2'' drive torque wrench that is only calibrated to 100lb/ft.

I do not particularly want to buy another torque wrench so I have been tightening the 24 mm head bolts with a one ft swivel bar and 1/2'' drive using as much force as I can.

My concern is that I am not producing enough torque to achieve the required setting .

As an approximate rule and based on an average man's full strength what length of bar (or pipe on the end of the bar) on a 24mm bolt head would be adequate to generate 200ft/lb ?

If you weigh exactly 200lb, stand on a horizontal wrench exactly 12 inches from the lug. Or apply 100lb of force 24 inches out, 50lb 48 inches out, etc.
 
   / Torque settings and leverage #3  
would be easier to just go purchase an inexpensive 50-250 1/2" drive torque wrench... you can buy one from Harbor Freight, Autozone..etc...

Definitely cheaper than breaking/stripping wheel studs and bolts...
 

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