4.Remove the six button head cap screws from the gib.
5.Use the included magnets, as shown in Figure 31, to first remove the gib, then the knife.
Magnets
Knife
Figure 31. Knife removal.
6.Depress the safety latch (shown in Figure 30), then carefully rotate the cutterhead towards you approximately ¼ turn. Release the safety latch and continue rotating the cutterhead until the second knife is exposed and the safety latch again engages.
7.Repeat Steps 4 and 5 for the second knife.
Before re-installing the knives, the cutterhead, gib and knife must be inspected. Neglecting to inspect these components may result in damage to the planer.
To inspect the cutterhead, gib, and knives:
1.DISCONNECT PLANER FROM POWER!
2.Carefully clean the cutterhead with a rag and with a flashlight, inspect the following:
•Make sure the threaded screw holes do not contain wood material or sawdust.
•Make sure that the hex socket and the threads of all cap screws are in good condition. Replace if questionable.
•Make sure any resin or glue buildup on the cutterhead, gib, and knives is removed so the knife and gib will sit flat on the cutterhead.
•Make sure the knives are free of cracks. If any cracks exist, replace both knives.
The knives on the Model G0689 Planer are revers- ible and should always be reversed or replaced as a matched set. To avoid downtime, we recom- mend having an extra set of knives for your planer (Model T20803 in the Grizzly catalog or website). Once the cutterhead, gib, and knives have been inspected and prepared, install the knives.
G0689 13" Planer