Troubleshoot

If paintballs break when a q-pod is engaged
Apply fewer pre-winds to the q-pod
Pre-fill the feed tube with paintballs by hand before engaging a q-pod
Use only fresh, good quality, and non-brittle paintballs.

If paintballs break in when a q-pod is disengaged
Adjust the feed tube length
Fix the feed valve
Use only fresh, good quality, and non-brittle paintballs.

If a q-pod will not feed paintballs
clean and dry the q-pod, socket, feed tube and elbow
adjust the feed tube so that paintballs flow through it smoothly
check the q-pod for improper assembly
apply more pre-winds to the q-pod
check the q-pod for missing and/or broken parts
use only fresh, good quality, and non-brittle paintballs.

If paintballs break in your marker
make sure the paintball-detents in your marker are  functioning properly.
apply fewer pre-winds to the q-pods
pre-fill the feed tube with paintballs by hand before engaging a q-pod
use only fresh, good quality, and non-brittle paintballs.

If the reload socket will not wind properly
oil the triangular feature on the winder inside of the reload socket with a light oil.

If the feed tube pops out of the socket
clean the o-rings, socket and elbow
replace worn or damaged o-rings
use two o-rings on each end of the feed tube

For further details refer to the online manual.