DA 10spd hollow crank: crank bolts torque settings

[Reg Lizard]

Does anybody know what the torque settings for these crank bolts are?

[Minion]

These people can help you. I presume you're looking for info on the FC-7800 Hollowtech II Crankset.

[AndreZA]

Follow the procedure in the figure.

1, 2 Use the special tool TL-FC32 to install the right adapter (counterclockwise thread) and the left adapter (clockwise thread).

Tightening torque: 35 - 50 N?m {305 - 435 in. lbs.}

3

Insert the right crank unit.

4 Set section A of the left crank into the axle of the right crank unit where the groove is wide.
(Insert a spacer when installing the FC-7803 left crank unit.)

5

Use the TL-FC16 to tighten the cap. Tightening torque: 0.7 - 1.5 N?m {6 - 13 in. lbs.}

6

Push in the stopper plate and check that the plate pin is securely in place, and then tighten the bolt of the left crank arm.

Note : Each of the bolts should be evenly and equally tightened to 12 - 15 N?m {106 - 132 in. lbs.}.

 

 

[Reg Lizard]

I have scanned their website and the technical doc's but can't seem to find any mention being made of these torque settings, or am I blind

I am looking for the torque settings of the gear fixing (5) bolts on the crank and not the bolts on the left crank arm.

[Minion]

Parktool gives some specs on chainring bolts here,

http://www.parktool.com/repair/readhowto.asp?id=88, at the bottom of the page. All of it's in Imperial units but they include a conversion table at the end.

 

[Reg Lizard]

thanks, that at least gives one some sort of an idea what to torque these bolts to.