MVP ATC-4000 Series, Repair Manual

Page: 16 / 55

ATC Chopper Gun Operations Manual
Page | 16
Disassembling the Gun
1. Remove the two Allen screws from the side of
the gun to separate the gun into two
components, the handle and the head/cylinder.
2. Remove the two screws on the back of the
cylinder and cautiously remove the cylinder
from the back of the gun head.
Servicing Gun Handle
Disassemble Handle
1. Loosen the set screw holding the trigger button
assembly and remove the button.
2. Unscrew and remove the trigger lock.
3. Remove the trigger housing.
4. Remove the trigger valve assembly from the front of the gun.
5. Remove the refinement air adjustment screw and spring from
the side of the gun.
6. Unscrew the refinement air packing nut from the side of the
gun and remove the O-rings.
7. Remove the three O-rings on the top of the handle.