Grizzly G0634Z manual Planer Table Parallelism, Table Parallelism Inspection

Planer Table
Parallelism
Maximum Allowable Tolerances:
Cutterhead/Table Side-to-Side	0.002"
Head Casting/Table Front/Back	0.020"
Tools Needed:	Qty
Rotacator	1
Wrench 12mm	1
Hex Wrench 4mm	1
Hex Wrench 8mm	1

Table parallelism is critical to the operation of the planer. As such, it is essential that the planer table is parallel with the cutterhead (within 0.002") from side-to-side, as illustrated in Figure 75.

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Figure 76. Front-to-back parallelism.

Table Parallelism Inspection

The easiest way to determine if your planer table has a parallelism problem with the headstock 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 (Page 32) 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

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accuracy. If the table is not within the maximum allowable tolerances, it must be adjusted.

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Figure 75. Side-to-side parallelism of table and

cutterhead.

How the planer table sits in relation to the head casting from front-to-back is also important (see Figure 76). The tolerances on the front-to-back positioning are not as critical as the cutterhead/ table side-to-side positioning. Therefore, the max- imum allowable tolerance for the front-to-back parallelism is not more than 0.020".

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Table Parallelism Adjustments

The table is adjusted with the set screws on the cylinder liner.

To adjust the table parallelism:

1.DISCONNECT THE JOINTER/PLANER FROM THE POWER SOURCE!

2.Raise the planer table as far as possible.

G0633/G0634 Jointer/Planer Combo Machine