Service Manual
9/25
1.4 Issue
Ref. NR-00073-ENG
http://www.gamapur.com
This
NEW MASTER III
model comes with a head turning mechanism so that it can be turned
according to the inlet position of the product hoses.
Do the following to make the change:
1.
Completely close the manual valves by turning them clockwise.
2.
To eliminate the pressure from the gun, press the trigger and project with the gun until the
projection fan begins to narrow.
3.
Press the blocking device and turn it clockwise to leave it in blocking position or mode.
4.
Close the air inlet valve.
5.
Remove the coupling block from the gun. Use a cloth dampened in solvent to clean the
contact surfaces and the seals of the non-return cartridges.
6.
Turn the isocyanate cartridge one turn anticlockwise.
7.
Turn the polyol cartridge one turn anticlockwise.
8.
Turn the locknut half a turn anticlockwise.
9.
Pull lightly on the mix head and turn it 180º (half a turn).
10.
Gently press the head until it is seated on the throat of the sleeve and cannot turn. If you
do not find the fixing position, leave the head in its theoretical position and tighten the fixing
nut slightly.
11.
Make sure the head is seated and tighten the sleeve throat fixing nut to fix the head.
12.
Tighten the two side cartridges.
13.
Connect the coupling block to the mixhead and fix it firmly with the central screw.
14.
To leave the gun operative, carry out the following steps for
Installation and Start-up
.
N.B.
To pass from one position to another, do not loosen the head fixing nut more than
half a turn.
