User's Manual

The marker does not fire when I am using the auto-trigger or skips
shots.
Lower the lug. Follow the setup procedures. If this does not solve the
problem, it could be a worn sear. Replace the sear.
Trigger is very sticky.
Check to see that you have not over tightened the Shoulder Bolt that retains
the trigger. This can cause drag on the trigger against the frame. In addition,
this can be caused by simply having a dirty trigger frame.
I seem to lose velocity during higher rates of fire (Auto-Triggering).
There can be many causes of this problem. The first to check is the point at
which the marker fires during auto-trigger. If it fires too soon – the bolt hole is
not properly lined up with the air passage and causes the velocity to drop off
during auto-trigger but not during normal shooting. Time the auto trigger
(above).
A dirty regulator piston can also cause a drop off during high rates of fire due
to a slow recharge rate of the regulator. Fully clean the regulator and if this is
the cause – it will clear up.
One thing can cause this problem is that your tank is not recharging quickly
enough and causes a ‘starving’ problem. Use a pressure gauge with slide
check to test the recharge rate of your tank.
Also, oddly, a dirty hammer can cause this as well. Due to tight tolerances of
the CCM marker a gummy hammer can cause drag and cause erratic
velocities. Clean the bottom tube and this should clear the problem.
One last thing that causes this is a worn trigger. If you tend to mash the
trigger (like I do) this can cause a serious divot in the trigger (where the AT
Cam rubs on the trigger) and cause odd problems. Replace when this divot
gets serious.
What feedneck threading is my marker?
CCM uses their own threads for the feedneck on the S6 and S5B.