Knife Inspection
The knives are set at the factory using jack screws before shipping. Springs are also included with your machine, installed beneath the knives. These may be used instead of the jack screws depending on your preference. Refer to Figure 13 for placement of the jack screws or springs.
Jack Screw
Spring
Figure 13. Typical placement of jack screws or
springs.
If you decide you prefer to use the spring adjustment method, you need to remove each knife, remove the jack screws, leave the two springs under each knife, and replace the knife.
Loosen the gib bolts until the knife is loose in the slot. The gib bolts turn clockwise to loosen and counterclockwise to tighten (when facing the head of the bolt). Carefully remove the knife. Back the jack screws out completely from the threaded hole and remove. If the springs have become dislodged in the removal process, be sure to place 1 spring in each of the two holes in bottom of the knife slot. The springs do not go into the threaded hole where the jack screws were installed. See
Figure 14.
When using jack screws, it is not necessary to install the springs. However it will not affect the adjustment if both the springs and jack screws are in place together.
G1021Z 15" Planer
Figure 14. Placing springs into knife slots.
The knives of your planer must be periodically adjusted and will ultimately need to be removed for sharpening. Adjustments should be as precise as possible with tolerances
TO INSPECT THE KNIVES:
1. UNPLUG THE PLANER!
2. Remove the dust port and upper cover and cutterhead guard to expose the top of the cutterhead. See Figure 15.
Figure 15. Cover Removed, Jig on cutterhead