User's Manual

Step Four:
Unscrew the back block from the marker. You may need to flex the cocking /
pump arm a little - but this is okay. In my the case of the 2004 Prostock® it takes
about 10 full turns to get the back block off the marker.
Your marker will look like this once the Bolt, Bolt Pin, Cocking Rod, and Back Block have been
removed. The brass circle in the bottom tube is the IVG.
Step Five:
Note the depth of the Lug before disassembly. You want to replicate this depth
upon reassembly. It will make timing the marker much easier.
From Left to Right: Valve Alignment Screw, Valve Retaining Nut Set Screw, Hammer (as seen through a cutout in the
body)
Step Six:
Remove the IVG (Internal Velocity Governor) from the marker (3/16
th
Allen Key
for most Autocockers® – 1/8
th
for CCM’s). The main spring will also come out at
this point.