There is no specific Torque on the Nut because you are supposed to squash a Sleeve similar to the ones in the Picture. You tighten down on the Sleeve a bit and then take the inch pound torque wrench and rotate the Pinion Shaft and see what type of resistance you get in inch pounds.

What you are doing is pre-loading the Bearings inside and there is no end play that can be checked like on the Rear Wheel bearings that also use a Crush Sleeve.

I did this on My Chevy Van over 1 Year ago but have never done it on a Mercedes. The pic of the Crush Sleeves are the ones from My Van.

The idea is that before you take the Pinon Shaft nut off you take the inch pound torque wrench and see what the bearing preload is. You make the position of the Nut on the shaft, count the exposed threads and even measuer the exosed threads if you can. But, that is only helpful if you use the same Nut again.
The above is a good idea to do even if you have the little Torque Wrench.

So you are trying to return the Nut to the exact same position and the theory is that that should preserve the Bearing Preload. And, that may be so.

I don't know about with Mercedes but on the Van there was a New Bearing Preload and an excepted limit Preload for used Bearings.

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84 300D, 82 Volvo 244Gl Diesel

You need to see what the Friction Pre-load is before removing the nut.

Pinion Seal Replacement - How to determine Friction Load

Here is a good thread with pictures explaining it. Found this on a Jag differential while looking for a picture of a Torque O-Meter.

Replacing a pinion seal on a Jaguar IRS! - Restorations and Projects by any description - The Garage Gazette


Here is a good picture of one.





Yellow Bullet Forums - View Single Post - Inch pound torque wrench?



Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works