Adjusting Table Parallelism - Grizzly G0490W Owner's Manual

Adjusting Table Parallelism

For safe and proper cutting results, the tables
must be parallel to the cutterhead. Adjusting them
to be parallel is a task of precision and patience,
and may take up to one hour to complete. Luckily,
this is considered a permanent adjustment and
should not need to be repeated for the life of the
machine.
Due to the complex nature of this task, we rec-
ommend that you double check the current table
positions to make sure that they really need to be
adjusted before starting.
Each table has four eccentric bushings on the
base underneath that allow the table to be adjust-
ed parallel. Each bushing is locked in place by a
set screw.
The correct order for adjusting the table parallel-
ism is to first adjust the outfeed table parallel with
the cutterhead, then adjust the infeed table paral-
lel with the outfeed table.
When setting the outfeed table, all measurements
MUST be made from the cutterhead body—not
the knives/inserts or the results may be skewed.
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Important: The steps below are intended to be
performed directly after the steps involved in
checking the outfeed table parallelism. Do not
continue until you have performed those steps.
To adjust table parallelism:
1.
Place straightedge on outfeed table so it hangs
over cutterhead, and lower outfeed table until
straightedge just touches cutterhead body,
as shown in Figure 72.
Straightedge
Outfeed Table
Figure 72. Adjusting outfeed table even with
cutterhead body (knife-style cutterhead shown).
2. Remove set screw from each of the four
eccentric bushings under outfeed table (see
Figure 73).
Eccentric
Bushing
Figure 73. Eccentric bushing and set screw
location.
Model G0490W/G0490XW (Mfd. Since 5/16)
Set Screw
Location