Setting Cutterhead Knives (JJ-6CSX)
Cutterhead knives are dangerously sharp! Use extreme caution when inspecting, removing, sharpening or replacing knives into the cutterhead. Failure to comply may cause serious injury!
1.Carefully number each blade with a magic marker to make them easier to differentiate.
2.Rotate the cutterhead by turning the cutterhead pulley and determine the 12 o'clock position of knife number one. The 12 o'clock position is the highest point a blade will reach in the cutting arc.
3.Loosen table lock screw (A, Fig. 19) and gib lock screw (B, Fig. 19) and raise the outfeed table to the height of blade number one by turning hand wheel (A, Fig. 20). Counter- clockwise will cause the outfeed table to raise. Clockwise will cause the outfeed table to lower. Set a straight edge on the outfeed table. Position of the table and straight edge should look like Figure 21. Use care when handling the straight edge near the blades so as not to damage them.
4.When the outfeed table and blade number one are the same height, tighten gib and table lock screws.
Important: Do not change the setting for the outfeed table again. This will only change if the blades are replaced.
5.Bring the straight edge toward the left of the jointer and confirm that blade number one is at the same height at the left of the table as it is at the right side of the table. (Fig. 22)
6.If blade is higher or lower at the right of the table than it is at the left, slightly loosen four screws (A, Fig. 21) by turning clockwise as viewed from the infeed table. Blades are adjusted with jacking screws To lower, turn the screw clockwise. To raise, turn the screw
Blades are set at the proper height when the top of the blades are 1/16" above the cutterhead.
7.Alternately tighten four screws to hold each blade in place.
8.Repeat this process with blades two and three.
The outfeed table and cutterhead knives are correctly adjusted when all three blades are parallel to the outfeed table and all three blades are set at the same height in the cutterhead.
Figure 19
Figure 20
Figure 21
Figure 22
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