AXVAC TEC 7300 User manual

Index.
Introduction
List of operations in this
instruction.
Generic guidelines
Opr. 1 Check of gun settings
Opr. 2 Check of adhesive feed
Opr. 3 Spray of hot melt

Genetic guidelines
•Avoid air pressure settings above 7 bars as this can
damage the spray gun
•Only use VACTAC200 hot melt adhesive with the
spray gun. New adhesives will need to be qualified by
R&D before use
•NEVER leave the gun lying on its side while turned
on. This will cause adhesive to run back into the
chamber and jamming the gun.
•Prevent contamination of the adhesive slugs.
Particles in or on the adhesive slugs can block the
nozzle of the spray gun.
•Always follow current guidelines for adhesive dosage.
Over dosage can cause delamination's.
•Always consult AXVAC before potential changes of
nozzle type.
•Hot melt adhesive should not be used for full surface
joining.
•For large glass pieces it is recommended to join fix-
points in the glass and adhere the fabrics from these
inside the mould as opposed to applying adhesive to
the entire ply outside the mould.

Check settings
of TEC 7300
•Step 1.0:
•Remove the rubber
cap surrounding the
nozzle.
•WARNING: Make sure
to wear heat resistant
gloves if removing the
rubber cap while the
gun is turned on.

Check settings
of TEC 7300
•Step 1.1:
•
•Check that the correct nozzle
type is mounted in the gun.
•The nozzle type can be
identified by the color:
•Red = narrow spray fan
(recommended nozzle type )
•Yellow = Medium spray fan
•Blue = Wide spray fan Don’t
forget that there is also the
different size of hole!
We recommed
Red 1,2 mm
nozzle
TYPE 6053

OK (~ 1.6mm clearance)
NOT OK
(>1.6mm
clearance)

Remove the rubber cap.
Remove the nozzle cover with pliers while
the gun is still hot.
WARNING: Always wear heat resistant gloves
since both the nozzle cover and the nozzle is hot.
NOTE: Put the spray gun on a piece of masking
paper while repositioning the nozzle. Hot adhesive
can drip from the gun while the nozzle/nozzle
cover is dismantled.

Carefully grab the nozzle with the
pliers and firmly press the nozzle into the spray gun.
NOTE: The gun MUST be hot when repositioning the
nozzle.
Remount the nozzle cover with the pliers.
NOTE: Make sure to check that nozzle cover clearance
from the nozzle base.
Remount the rubber cap

Check of adhesive
feed
Adjust the air pressure
to 4 bars.
** Max 7 bars

The TEC 7300
Spray gun must
be turned on
for minimum
5 minutes
before use

Spray on the
hotmelt glue
Example roving material
Adjust the adhesive dosage to
20-50 g/min by turning the screw on
the back of the spray gun.
NOTE: The accurate adhesive feed is
dependent on the desired movement speed of the gun.
Recommended Acceptable Not acceptable

Spray on the
hotmelt glue
Example CSM-roving
Recommended Acceptable Not acceptable