User's Manual

MAINTENANCE
AIR SOURCE MUST BE REMOVED BEFORE
ANY MAINTENANCE CAN BE PERFORMED
Barrel
To clean the barrel, unscrew it from the main body and swab
toward the rear. When paintball gelatin residue builds up, clean
with warm soapy water or rubbing alcohol. Residue build up hurts
accuracy.
Upper Chamber
Field strip as described on page 7 and use warm soapy water or
rubbing alcohol where needed to clean the rest of your F4.
Remove the bolt O-rings to remove paint and dirt build up from
the O-ring grooves.
Keep the bottle valve and adapter clean. Dirt entering here can
destroy the cup seal or valve body in one shot.
Lower Chamber
To clean the lower chamber see steps 1-8 on page 7, then remove
striker plug, striker spring and guide pin.
Remove bottomline from trigger housing by removing the two
screws holding it to the grip.
Remove front / rear trigger housing screws and washers and
remove trigger housing. (Notice front screw is longer with a pilot
on it to secure the valve body.)
Slide striker out the rear of the gun. If needed, insert a small
object into the bottom slot of the main body, to assist in sliding
the striker out the rear of the gun.
Clean all major components of the gun.
Inspect all O-rings and replace as needed.
Apply AIRLUBE™ upon assembly of all moving parts.
Reassemble parts in reverse order, making sure to include trigger
housing washers. Be very careful not to force parts back together,
or permanent damage may occur.
The following parts should not be removed for
routine maintenance:
Sight Rail / Quick Slide Cocking System
The sight rail should only be removed by a qualified airsmith.
Cup Seal And Valve Body
Easily damaged when removed. In clean conditions these have
lasted for more than 250,000 shots. If exposed to dirt, the cup seal
will wear rapidly. If the cup seal guide is tight on the cup seal, it
can force the seal to the side, causing the valve to leak.
Reservoir / Front Plug O-ring
Usually damaged only during removal