Magnum Venus Plastech ATG chopper Gun - Manual (Page 16)

ATC Chopper Gun Manual
Rev. 11/2012 Page | 16
Handle Assembly
Note: Thoroughly clean and inspect all parts for ware or damage. Replace all
parts with original MVP parts. Open the seal kit and match the o-rings with the
ones being replaced.
11. Replace the o-rings on the trigger valve.
Note: A special tool is available to install the o-rings on the trigger valve –
Trigger Valve O-ring Tool ATC-40103-1.
12. Install the spring on to the trigger valve and install into the front of the gun.
13. Thread the trigger housing into the front of the gun over the trigger valve
using a 7/16 wrench.
14. Thread the trigger lock into the trigger housing.
15. Place the trigger button on to the end of the trigger valve depressing it all the
way, and then tighten the set screw on the side of the trigger button to hold it
in place.
16. Replace the o-rings in the air refinement needle valve on the side of the
handle, the Buna (black) o-ring first then the Teflon (white).
17. Install the packing nut, just till it stops.
18. Place the spring onto the refinement air needle.
19. Lubricate with Super O Lube (SUPERLUBE) and install the refinement air
needle into the side of the gun.
20. Replace the o-rings on top of the handle. These o-rings seal the cylinder and
gun head to the handle. Set the handle aside for now.