Hand Drilling Of Mix Modules; To Balance Pressure And Flow At The Mix Gun; Check Valve Filter Option; Tools Required - Graco Fusion Instructions-Parts List Manual

Hand Drilling of Mix Modules

To balance pressure and
flow at the mix gun
Graco only makes 1:1 ratio mix modules. When apply-
ing a material that is different than 1:1 it is necessary to
modify the mix module to allow more material through
the larger part side.
The actual size of the orifice required is dependent on
many factors such as material viscosity, shear, ratio tip
size, etc. For example, a 2:1 material by volume does
not necessarily require the diameter on the larger part
side to be doubled.

Check Valve Filter Option

See Check Valve Filter Screens, page 52. Gun is
shipped with 80 mesh filters on both the A and B check
valves. 40 mesh (quantity 2) and 60 mesh (quantity 2)
filters are included with the gun. For wider ratio materi-
als it is advisable to decrease the filter size on the larger
part side to decrease pressure drop.

Tools required

• Assorted Drill Bit Kit 119386
• Pin Vise 117661
Two XF1313 Polycarbolloy mix modules are
included with the gun. Additional mix modules are
available, see page 50.
Larger Modules XF3535, XF4747, XF5757 are
available but not included with gun.
1.
Follow Pressure Relief Procedure, page 19.
2.
Flush Gun, page 24.
3.
Remove Polycarballoy Mix Module, see page 34.
310648P
4.
Locate the larger part side (typically the B [RES]
port at rear of Polycarballoy Mix Module).
Polycarballoy Mix Module cross section.
NOTE: View is not to scale.
A(ISO)
TI3876a
5.
Open up resin porting to raise ISO pressure. Start-
ing with the smallest drill bit size, drill into port. For
drill bit sizes, see Drill Bit Table, page 16.
117661
B (RES)
Pin Vise
Hand Drilling of Mix Modules
B (RES)
Mix Module
XF1313
TI3862a
15