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Figure 21. Spiral knife system.
Knife Replacement
(W1724)
The Model W1724 does not need a knife setting
jig in order to establish the correct knife height.
The spiral cutterhead has an alignment groove in
which the knife indexing tangs fit into,thus
establishing the correct knife height every time
(See
Figure 23). However, care must be taken
to make sure that the knife tangs fully seat in
the alignment groove when you tighten the gib
screws. An indexing tool is included with your
planer to assist in this alignment. See
Figures 21
and 25).
NOTE
: DO NOT attempt to sharpen these
knives, as they are self-indexing knives. Only
replace these knives with new ones.
To replace the spiral knives, do these steps:
1. UNPLUG THE PLANER!
2.
Put on your gloves and safety glasses.
3. Remove the dust hood and the plastic chip
deflector. See
Figure 22.
4.
Remove all gib screws, gibs, and the knife.
5. Position the new knife and the left-end of
the knife indexing tangs in the cutterhead
alignment groove. The right-end of the
knife will be sprung up and out of the
groove. See
Figure 23.
6.
Position the tree-hole gib at the far-left of
the knife and cutterhead, and tighten the
gib screws only finger tight.
7. Insert the indexing tool in the 7
th
alignment
hole from in the knife. See
Figure 25.
WEAR thick gloves and use
extreme caution when
working near planer
knives. These knives are
dangerously sharp! Failure
to exercise care while
working near knives could
result in severe injury.
Figure 22. Chip deflector
Figure 23. Knife indexing/alignment system.
Indexing
Tang
Gib
Gib
Screw
Indexing
Tool
Knife
Chip
Deflector
Cutterhead
Alignment
Groove
Alignment
Tang
Indexing
Tool
Alignment
Holes
Indexing Tool
Alignment Hole