Service Manual
18/25
1.4 Issue
Ref. NR-00073-ENG
http://www.gamapur.com
11.
Carry out the projection procedure indicated in the start-up section.
12.
Start the gun.
PRECAUTION
: Use wooden or plastic utensils or a brass brush for cleaning. Do not
use metal utensils that can scratch the contact surfaces.
Filter and Non-Return cartridge unit
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.
Perform the Unit Standstill
Method,
following
the
procedure indicated in the
Machine Service Manual.
2.
Completely close the manual
valves of each product by
turning them clockwise.
3.
To eliminate the pressure
from the gun, press the
trigger and project with the
gun until the projection fan
begins to narrow.
4.
Disconnect the air supply
from the gun.
5.
Remove the lower check
valve cartridges as shown on
page 10 with the help of a
screwdriver, threaded rod or
screw.
6.
Unscrew the stopper and
remove the spring and the
non-return ball. Clean them
with gun-cleaning solvent.
7.
Separate the filter and clean it with gun cleaning solvent. Make sure that it is not blocked. If
you see that the mesh is obstructed over more than 20% of its filter surface, replace it.
8.
Clean all of the components meticulously to eliminate all product remains using a cloth
dampened with gun cleaning solvent and a brass brush.
9.
Make sure the holes of the filter holder cartridge are not blocked by remains of crystallised
product. If you should see any dirt on the head, clean the communicating drill holes with a
drill and a brass brush.
