“To remove the (Fauber) crank special tools are needed. One for the nut (top) and another for the cup (bottom). Start the job on the left side of the bike.
1. Using the special key unscrew the nut (a) backwards.
2. The securing washer (b) is now loose. Remove it.
3. Left dustcap (c) is also loose. On the inside there are two teeth that fit the notches in the cone (d).
4. Use the dustcap to unscrew the conus. Keep in mind that it is left-threaded, screw backwards.
5. Loosen the left cup (f) using the special tool by screwing backwards. Remove the ball bearing frame (e) and the cup.
6. The crank arm (g) will now seem loose, but before you remove it you need to loosen the right hand side using the special tool.
7. Now the crank arm can be eased out of the bicycle frame.
8. Clean the ball bearings in kerosene and re-pack them with grease. Replace worn parts.
9. If the chainwheel (j) needs replacing, unscrew the right hand side conus – which is right-threaded. Lift off the right hand side dustcap.
10. The chainwheel can now be replaced. If you place the ball bearing frame in the cup, you will observe that it rests deeper than what is the case for the left cup.
11. Installation is reverse of removal. Keep in mind the different thread direction left and right.
12. Finally, check that the crank rotates easily. If it is too tight or loose, loosen the nut. The tightening is adjusted by rotating the dustcap.
13. Retighten the nut properly.
14. Make a last check to ensure that everything works as it should.
