Grizzly G1033X, Owner'S Manual

Page: 48 / 76

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Model G1033/X/Z (Mfd. Since 02/19)
Adjusting Table
Parallelism
Figure 65. Front-to-back parallelism of table and
cutterhead.
How the table sits in relation to the head cast-
ing from front-to-back is also important (see
Figure 65). Because the feed rollers, pressure
bar, and chip breaker are adjusted off the table
position, the tolerances on the front-to-back posi-
tioning are not as critical as the cutterhead/table
side-to-side positioning. Therefore, the maximum
allowable tolerance for the front-to-back parallel-
ism is within 0.020".
Maximum Allowable Tolerances:
Cutterhead/Table Side-to-Side ..................0.002"
Head Casting/Table Front/Back ................ 0.020"
Tools Needed: Qty
Rotacator ........................................................... 1
Phillips Screwdriver #2 ...................................... 1
Wrench or Socket 14mm ................................... 1
Hex Wrench 6mm .............................................. 1
Table parallelism is critical to the operation of
the machine. As such, it is essential that the
table is adjusted parallel with the cutterhead
(within 0.002") from side-to-side, as illustrated in
Figure 64.
Figure 64. Side-to-side parallelism of table and
cutterhead.
Cutterhead
Cutterhead
Table
Table
Parallel Parallel
Not Parallel Not Parallel
FRONT
VIEW
SIDE-TO-SIDE
Table
Table
Head
Head
Parallel Parallel
Not Parallel Not Parallel
FRONT BACK
Table Parallelism Inspection
The easiest way to determine if your head casting
has a parallelism problem is to plane a workpiece
and measure the thickness in multiple locations. If
the workpiece is tapered from left-to-right or from
front-to-back, then parallelism may be a problem.
Use your Rotacator to further inspect the table
parallelism. If you do not have a Rotacator, a
wood block and feeler gauges may be used, but
extra care must be taken to ensure accuracy. If
the table is not within the maximum allowable
tolerances, it must be adjusted.
Table Parallelism Adjustments
The table is adjusted by turning the chain sprock-
ets underneath the table for movements over
0.016" or by adjusting how the table is mounted
on the columns for movements under 0.016".