Shear Pin Replacement; Bearing Preload - Grizzly G9036 Owner's Manual

shear pin
replacement
the Model g9036 is shipped with two extra shear
pins. the shear pins hold the leadscrew and feed
rods together (see figure 94). they are designed
to break and protect more expensive components
if you crash your carriage or take too large of a
cut.
leadscrew shear pin
Feed rod shear pin
figure 94. shear pins.
tools needed
hammer ............................................................. 1
punch 5/16" or 8mm .......................................... 1
to replace the shear pin:
1.
disConneCt lAthe FroM poWer!
2.
rotate the leadscrew/feed rod so the shear
pin is facing up and down. if the collar rotates
independently, then rotate it so the shear pin
holes align with those in the leadscrew/feed
rod.
3.
use the punch and hammer to drive out the
pieces of the old shear pin.
4. Make sure the holes in the collar and
leadscrew/feed rod are aligned and tap the
new shear pin, taper-side first, all the way into
the holes.
Model g9036 Mfg. 7/08+

bearing preload

this lathe is shipped from the factory with the
spindle bearing preload adjusted. if the spindle
ever develops a bit of end-play and the workpiece
finish suffers, you can adjust the bearing pre-
load to remove the end-play and improve the
workpiece finish.
tools needed
hook-style spanner Wrench 68-75mm ............. 1
dial indicator with Magnetic Base ..................... 1
heavy dead Blow hammer ............................... 1
Wooden Block ................................................... 1
to adjust the preload:
1.
run the lathe for 20 minutes on high speed to
bring the lathe to a normal temperature.
2. disConneCt lAthe FroM poWer!
3.
remove the chuck, shift the spindle to neu-
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tral, then remove the cover from the end of
the headstock to expose the outboard end of
the spindle (figure 95).
outboard
end of
spindle
figure 95. location of outboard end of spindle.
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