Remove freehub lockring by turning counter clockwise with pin spanner

Using two 5mm hex wrenches, loosen the endcaps by turning them counter clockwise from each other

The driveside endcap will normally loosen first

Remove the driveside endcap

Slide freehub assembly off of the axle

Be careful not to lose the pawls as they may fall while removing the freehub body

Use an axle vise or insert the flats on the drive side of the axle into a smooth jaw vise

While holding the axle in the vise, loosen the non-drive endcap by turning it counter-clockwise

The preload adjuster may need to be held with a cone wrench while loosening the non-drive endcapdrive side

Loosen the preload ring by turning it clockwise

Slide the axle out of the hub shell by pushing from the non-drive side to the drive side

Slide the hub body off of the axle

At this point the hub is most of the way apart, you can service bearings, replace worn parts or just clean things up

Next, Let's install the axle

Lightly grease steel axle

Remember the drive side of the axle is the side with the bearing surface for the freehub body

Slide the axle into the hub from the driveside

Use an axle vise or insert the flats on the drive side of the axle into a smooth jaw vise

While holding the axle in the vise, install the preload adjustment ring by turning it counter-clockwise

Tighten the preload adjuster by hand

Put two drops on medium strength thread locker on the threads inside the non-drive side axle

Install the non-drive endcap by turning it clockwise

Lightly grease the face where the endcap and preload ring will meet

Adjust the bearing preload using the preload ring

Tighten the preload ring so the bearings no longer have play in them, but such that they also do not have excess drag

When you are happy with the adjustment, hold the preload ring with a cone wrench and tighten the non-drive endcap to 6nm

Remove the axle from the vise

Next, install the freehub assembly

Learn how to lube the freehub properly using the freehub service instructions

Slide the freehub body over the axle

Turn freehub counterclockwise so that the pawls compress the springs and slide into the hub

A tool may be used to lightly compress the pawls

Put one drop of medium strength threadlocker on threads inside the driveside endcap

Install the endcap by turning clockwise

Tighten to 6nm

Reinstall the freehub dust seal by turning clockwise

tighten to snug