How the heck do you guys torque a cylinder nut to 600 ft lb? Rebuilding Bobcat combo bucket cylinder.

[clydesdale]

I am putting new seals in and apparently I need to get the bottom nut to 600 ft lb. I do not have that kind of torque wrench. How do most people achieve this? Thanks.

 

[repete]

Look up "torque multiplier". The question is the accuracy of these things. You can spend a lot or a "little".

 

[Tx Jim]

Ditto on torque multiplier

 

[RickB]

150 lbs on a 4' bar. Really not that difficult if you have a 3/4 drive socket set.

 

[RickB]

Look up "torque multiplier". The question is the accuracy of these things. You can spend a lot or a "little".

Torque multipliers use a fixed gear ratio. It's not going to get "out of calibration" or be "inaccurate ". Output will always be the same multiple of the input.

Garbage in, garbage out. (Potentially) If your 1/2" drive torque wrench is off by 1 lb/ft your finish torque using a 64:1 multiplier will be off by 64 lbs/ft. I'll stick to a cheater bar and my sense of feel.

 

[WranglerX]

I am putting new seals in and apparently I need to get the bottom nut to 600 ft lb. I do not have that kind of torque wrench. How do most people achieve this? Thanks.

What does "bottom nut" actually look like.... May determine on approach to achieving 600 ft-lbs....

 

[newbury]

150 lbs on a 4' bar. Really not that difficult if you have a 3/4 drive socket set.

Or some other math solution. I'd use a 2.5 foot bar and my 240 lbs.

 

[repete]

Do we want to open the discussion on lubricated vs non lubricated surfaces and threads?

 

[Cougsfan]

Do we want to open the discussion on lubricated vs non lubricated surfaces and threads?

NO!!! We could also avoid a discussion about the anality of absolute torque values.

 

[LouNY]

Heck I'm getting older and more tired, a six ft piece of pipe and 100 pound pull is the easy way out.
KISS