Inspecting Knives
The height of the knives can be inspected with a straightedge to ensure that they are set evenly with the outfeed table at their highest point in the cutterhead rotation.
Tools Needed | Qty |
Straightedge | 1 |
Hex Wrench 3mm | 1 |
To inspect the knives: |
|
1.DISCONNECT JOINTER FROM POWER SOURCE!
2.Loosen the set screws shown in Figure 10, Page 17, remove the guard, and open the pulley cover.
3.Rotate the cutterhead pulley to get access to one of the cutterhead knives.
4.Using a straightedge, check the height of each knife at its highest point in relation to the outfeed table, in each of the straightedge positions, as shown in Figure 42.
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Figure 42. Checking knife height with a
straightedge.
—The knives are set correctly when they just touch the bottom of the straightedge in each of the straightedge positions.
—If the knives do not touch the straightedge or they lift it up in any of the positions, then those knives need to be adjusted.
Adjusting/Replacing
Knives
Setting the knives correctly is crucial to the prop- er operation of the jointer and is very important in keeping the knives sharp. If one knife is higher than the others, it will do the majority of the work, and thus, dull much faster than the others.
There are two options for setting the
Straightedge Method: A high quality straight- edge is held flat against the outfeed table and the knife heights are set to the bottom of the straightedge, as shown in Figure 42. Because the knife projection height from the cutterhead is dependent on the outfeed table height, the outfeed table must be set as described in Setting Outfeed Table Height on Page 39 for this meth- od to work correctly.
When using a straightedge to set the knives, you will not need to move the outfeed table once it is set and you will always be assured that the knives are even with the outfeed table in their highest point of
