novaG-A
Manual Service
19/25
1.2 Issue
Ref. NR-00016-ENG
Trigger and valve
WARNING:
Before carrying out maintenance work on the gun, make sure that the unit
has been completely stopped, that all of the push buttons and the main switch are turned
off and that the unit is disconnected from the main power supply. The gun is a
component which works under pressure. No connection must be opened or
maintenance work be done on component subject to pressure until the pressure has
been completely eliminated.
1.
Remove the coupling block.
2.
Use a cloth dampened in cleaning fluid to clean the contact surfaces and the seals of the
non-return cartridge bases.
3.
Disconnect the air pipe.
4.
Remove the trigger stop screw.
5.
Remove the retention nut and extract the screw holding the trigger.
6.
Unscrew the nut of the trigger valve.
7.
Remove the trigger shaft and carefully hold it by the end with pliers to remove it from its
housing. The trigger shaft has a spring in the base. Make sure you do not lose it.
8.
Check the o-rings of the trigger shaft. Replace them if they are damaged. Apply a little
grease to make it easier to assemble.
