Figure 22. Understanding cutterhead assembly.
Wear heavy leather gloves when loosen- ing/tightening gib bolts in case the wrench slips and your hand hits the knife. Planer knives are dangerously sharp. If care is not taken, serious injury may occur.
NOTICE
Uneven tightening of the gib bolts may cause the cutterhead to become unbalanced, which will lead to premature wear and tear of the knives and produce poor results!
1 3 4 2
Figure 23. Gib bolt tightening sequence.
Adjusting Knives
The knives in the Model W1679 come from the factory with jack screws installed. Springs are also included as an option for knife adjustments, depending on your preference. Figure 22 shows an illustration of the cutterhead components. The knife position should be as precise as possi- ble in the cutterhead. All knives should be with- in .002" from one end to the other and within
.002" from one knife to another.
To adjust the knives:
1.Unplug the jointer!
2.Remove the cutterhead guard from the table, so that you have clear access to the top of the cutterhead.
3.Remove the pulley cover at the back of the machine and slowly turn the cutterhead with the pulley until one of the knives is exposed and is easily accessible.
4.Loosen the cutterhead gib bolts so that the knife is loose.
5.Place the knife gauge on the cutterhead as described in the “Checking Knives” instruc- tions and as shown in Figure 22.
6.Jack
7.Start at the beginning knife and slightly tighten each gib bolt on each knife in the sequence shown in Figure 23. Repeat this step two or three times until all gib bolts are completely tight.
ADJUSTMENTS