Trouble Shooting; Trouble Shooting Hubs - DT SWISS CLASSIC Technical Manual

5. TROUBLE SHOOTING

5.1 TROUBLE SHOOTING HUBS

Issue
Freewheel jammed / blocked
Hub has axial play
Hub rotates stiffly
Hub makes noise
Notches from the cassette on
the freewheel body.
Freewheel body rotates with
difficulty.
Freewheel is too noisy / too
quiet.
22
Reason
Spacer was forgotten during
assembly.
Spacer was compressed by
overtightening the thru axle.
An end cap that does not fit has
been mounted.
Defects on the hub body, on the
freewheel or on one of the end
caps.
Ball bearings were not mounted
correctly.
Ball bearings are worn out.
Ball bearings are worn out.
Ball bearing non drive side too
tight.
Mounting sequence of the ball
bearings not observed.
Ball bearings are worn out.
The steel cassette works itself
into the alloy web of the freewheel
body.
Ball bearings in the freewheel
body are worn out.
Stop of the cassette on the
freewheel body broken.
The perception of the freewheel sound is very subjective. While some
riders prefer a loud freewheel sound, other riders want a quiet freewheel.
In principle, the freewheeling sound can be influenced by the amount of
grease between the ratchets. Less grease increases the freewheeling
sound, but at the same time leads to higher wear.
Solution
Check correct assembly, see
"Mounting the freewheel system",
page 14.
Measure the length of the spacer. If
the spacer is shorter than 15.4 mm, it
must be replaced.
Shimano end caps on a SRAM XD
freewheel can cause jamming.
Check all parts for defects and
replace parts as necessary.
Check correct assembly, see
"2.3 Maintenance of the rear wheel
hub with Ratchet System", page 11
Replace ball bearings.
Replace ball bearings.
Check correct assembly, see
"2.3 Maintenance of the rear wheel
hub with Ratchet System", page 11
Replace ball bearings.
Remove bad notches on the freewheel
body using a file.
Replace freewheel body.
Replace the freewheel body.