Grizzly G0923, Owner'S Manual, Page: 42 / 56

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Model G0923 (Mfd. Since 05/20)
7. Quickly move heat gun or blowtorch over
nozzle to burn filament and debris away.
IMPORTANT: DO NOT hold heat in place
over nozzle. Direct heat can melt or deform
nozzle.
8. Remove set screw from heat sink (see Figure
53).
Figure 53. Heat sink.
Heat Sink
Set Screw
CAUTION: If heating block is still hot, wear
gloves to protect hands during following step.
9. Pull down firmly on heating block to remove it
from heat sink (see
Figure 54).
Figure 54. Removing heating block from heat
sink.
Thermal
Barrier Tube
Heating
Block
Heat Sink
10. Remove external debris and filament buildup
from heating block and thermal barrier tube.
— If thermal barrier tube has excessive build-
up, it can be unscrewed while heating
block is hot, then cleaned with a blowtorch
in the same manner as the nozzle (refer to
Step 7).
11. On back side of print head, loosen (2) button
head cap screws that secure heat sink (see
Figure 55).
12. Remove heat sink and insulator tube from
print head (see Figure 56).
Figure 55. Heat sink screw location.
Heat Sink
Button Head
Cap Screws
Figure 56. Insulator tube and heat sink
Heat Sink
Insulator
Tube
13. Remove insulator tube from heat sink.
14. Remove external debris and filament buildup
from heat sink.