Service Manual
14/20
1.5 Issue
Ref. NR-00008-ENG
http://www.gamapur.com
Trigger and valve
WARNING:
Before performing maintenance work on the gun, make sure that the unit is
at a complete standstill, that all of the buttons and the main switch are turned off and that
the unit is disconnected from the main power supply. The gun is a component that
works under pressure; no connection must be opened or maintenance work done on
components subject to pressure until the pressure has been completely eliminated.
Remove the side blocks and carefully separate them from the gun block. Clean the contact
surfaces using a cloth dampened in gun cleaning solvent.
Disconnect the air hose supply with the quick connect.
Unscrew the trigger stop bolt.
Remove the retention ring and extract the pin holding the trigger.
Unscrew the nut of the trigger valve.
Remove the trigger shaft and hold it carefully for the end with a few pliers to extract it from the
hole. The trigger shaft has a spring in the base. Make sure you do not lose it.
Check the o-rings of the trigger shaft. Replace them if they are damaged. Apply a little grease to
make assembly easier.