Torque value for M939A2 combat wheel studs?

[US6x4]

I've been looking for the torque spec for the nuts that fasten the two halves of the A2 combat wheels with the 3/4" studs, but I haven't found anything. Does anyone know what the correct range is? Does it differ by brand of wheel?

 

[simp5782]

Till it stops.

 

[wheelspinner]

3 ugga duggas

 

[simp5782]

3 ugga duggas

Something will give.

 

[wheelspinner]

Something will give.

1/2” uggas

 

[US6x4]

Thanks for chiming in guys, but I was hoping for something more definitive. Going till it stops is a bit subjective. Like if I use my favorite wrench till it stops it won't be enough:


If I use a 1" impact till it stops I might be snapping off studs.

There's got to be ft-lb number somewhere...

 

[US6x4]

Something will give.

Is that a 1" drive? That thing looks cool

 

[Mullaney]

Is that a 1" drive? That thing looks cool

.
Milwaukee is a really GOOD piece of equipment! I have a half inch that I use on most of the bolts on my 5-Tons. A lot of that and the ability to do stuff without breaking stuff is "'by ear". Over time, you learn that the hammering is "getting more serious" and something is going to give if you let the wrench keep on hammering.

They make 1/2, 3/4 and 1 inch drive tools. Battery life is incredibly good. Saw a truck test and a guy on YouTube ran through a complete "tractor trailer" before he needed a new battery. A full 18 wheeler with doubles (no super singles) wheels off and back on...

 

[simp5782]

Is that a 1" drive? That thing looks cool

Yes it is the 1 inch gun. Was on sale with additions so I bought one. My 3/4" gun does most of the work

 

[simp5782]

Hemtt wheels with 3/4" studs have a beadlock torque of 450-500ft lbs by the TM.

I use my 3/4" gun on all wheel halves till they don't go anymore. Never torqued em.

 

[Curtisje]

You may find your answer here.



Good luck.

 

[simp5782]

You may find your answer here.

View attachment 856978

Good luck.

Probably not since it doesn't list 20in wheels or 3/4" studs.

 

[G744]

I use a Harbor Freight "Earthquake" 3/4" 20 Volt electric impact.

It will do a whole trucks worth of lugnuts on a charge.

One flat on the road and it pays for itself then.

I run those rim nuts to a few seconds after stall. It took some 400 ft-lbs on my torque wrench to break 'em loose.

Really, that duty on a rim ring is a lot like a cylinder head. Tight is good, but uniform torque is where it's at.

DG

 

[Curtisje]

I've been looking for the torque spec for the nuts that fasten the two halves of the A2 combat wheels with the 3/4" studs, but I haven't found anything. Does anyone know what the correct range is? Does it differ by brand of wheel?

Table 16. Wheels. ITEM SPECIFICATION Type Quantity Two-piece Hutchinson bolt-together 2 front; 2 rear per vehicle Rim Size Stud Quantity per Wheel 20.00 x 10.00 front; 20 x 10.00 rear 10 Wheel Assembly Bolt Torque Lug Nut Torque 150-170 lb-ft (203-230 N•m) 450-500 lb-ft (610-678 N•m)

I found that on page 0002-42 of TM 9-2355-444-10. Not sure if it is your wheels or not.

The TM is too large for me to attach.

 

[US6x4]

OK, I found a torque value and a torque sequence in the Oct. 1992 TM.

In the section header it lists both the A1 (5/8" stud) and the A2 (3/4" stud) tire and wheel so I guess it's the value for both stud sizes

 

[Steelreaper80]

Gooden tight!

 

[Karl kostman]

The TMs are a truly wonderful reference tool for questions exactly like this! They are located on this site and they are free for all of us to use!

 

[HDN]

OK, I found a torque value and a torque sequence in the Oct. 1992 TM.

In the section header it lists both the A1 (5/8" stud) and the A2 (3/4" stud) tire and wheel so I guess it's the value for both stud sizes

That torque is a little over half what's specified for the M35A3 bolt-together rims! Why super singles for a 2-1/2 ton truck need so much more torque than a 5-ton I have no clue And the A3 rims are limited to only 4000 lbs per wheel. Talk about an inefficient design compared to the 5-ton rims

 

[US6x4]

If the A3 is newer than Oct. '92 i wonder if they found that lower torque number to be inadequate and increased it for the A3?...

 

[HDN]

If the A3 is newer than Oct. '92 i wonder if they found that lower torque number to be inadequate and increased it for the A3?...

I have the tire TM (TM-9-2610-200-14) dated 1 September 2000 and it has the same torque values as mentioned for the M939A1 series bolt-together rims:



The M35A3 trucks were built between 1995 and 1998, but maybe the rim design is older than that. It definitely seems less refined compared to what I'm seeing for the 5-ton bolt-together rims! You can set the torque on the 5-ton rims with a 3/4" drive torque wrench from Harbor Freight instead of breaking out the torque multiplier or getting an even bigger torque wrench!