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Confirming Bearing Preload
1.
Re-attach all removed lathe components and
prepare it for operation.
2.
Install chuck (refer to Chuck Installation on
Page 29) and tighten jaws.
3.
Set spindle speed to its highest setting.
4.
Connect lathe to power and turn lathe spindle
ON.
5.
Run lathe for 20 minutes, while periodically
shutting down machine several times and
checking temperature.
6.
Turn spindle OFF, disconnect lathe from
power, and check temperature of spindle.
—If the spindle nose is slightly warm to the
touch, you have correct bearing preload.
—If the spindle nose is hotter than you
can comfortably keep your hand on, the
preload is too tight and you must repeat
the bearing preload adjustment procedure.
When repeating the procedure, rotate the
inner spanner nut a little less during Step
10 in the preceding instructions.
-82-
Removing/Installing
Gap Insert
This lathe is equipped with a removable gap
insert that will allow for turning large diameter
workpieces. The gap was seated, pre-loaded,
and then ground for precise mating and alignment
at the factory. Removing the gap can cause the
lathe insert to slightly spring out of shape. When
re-installed, there is no guarantee that original
alignment and flush mating will be the same. For
this reason, removing the gap is considered a
permanent alteration to the lathe, even if it is later
re-installed.
Items Needed
Open-End Wrench 14mm .................................. 1
Hex Wrench 8mm .............................................. 1
Heavy Dead Blow Hammer ............................... 1
Miscellaneous C-Clamps ................ As Required
Wooden Blocks ............................... As Required
Removing Gap Insert
1.
DISCONNECT MACHINE FROM POWER!
2.
Remove four cap screws that secure gap
insert to bed (see Figure 139).
3.
Tighten dowel-pin jack nuts (see Figure 139)
to draw pins from gap insert.
4.
Loosen preload cap screw (see Figure 139)
a few turns until it no longer contacts head-
stock.
Preload Cap Screw
Cap
Screws
(2 of 4)
Figure 139. Gap insert retaining fasteners.
Model G0782 (Mfd. Since 10/15)
Qty
Dowel Pins
w/Jack Nuts
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