Adjusting Knives - Grizzly G0505 Owner's Manual

Adjusting Knives

The Model G0505 Planer is equipped with a
two-knife cutterhead. The knives are locked in
position by a knife gib with seven bolts that are
angled to put pressure on the knives when they
are tightened. Adjusting the height of the knives is
a balancing process between the springs under-
neath the blades that are pushing up and the knife
gauge that is pushing down.
Note: The knives have two cutting edges and can
be reversed to double their usage.
The knives of this planer are extremely
sharp and can quickly cause a serious injury
to your hands or fingers. Always wear heavy
leather gloves when handling these knives
to reduce the risk of cutting injuries.
Tools Needed
Wrench 8mm (included) .................................... 1
Removing Knives
1. DISCONNECT PLANER FROM POWER!
2. Lower the cutterhead as far as it will go, then
remove the chip deflector or dust hood.
3. Loosen the seven gib bolts for the first knife.
Note: To loosen the gib bolts, turn them
clockwise—the opposite of the normal direc-
tion (see Figure 28).
Spring
Gib
Knife
Figure 28. Cutterhead components.
Model G0505 (Mfg. since 4/04)
4.
With great care, slide the knife out of the
cutterhead.
Note: Make sure the gibs and springs do not
fall out of the cutterhead by re-tightening the
gib bolts.
5. Repeat Steps 3–4 to remove the second
knife.
Tools Needed
Wrench 8mm (included) .................................... 1
Knife Gauge (included) ...................................... 1
Installing & Adjusting Knives
1. Complete all of the steps in the previous pro-
cedure to remove the knives.
2. Rotate the cutterhead so that the first knife
slot is facing directly up so that the springs
will not fall out, then remove the gib.
3.
Use a shop rag and mineral spirits to clean
any debris or grime from the knife slot, gib,
Qty
and knives, then apply a thin coat of light oil
to all these parts.
4.
Make sure the springs are properly seated,
then replace the gib with the bolts oriented as
shown in Figure 29.
Gib Bolt
Figure 29. Side view of cutterhead and knife
Loosen
5. Position the knife so the beveled edge will be
Tighten
against the cutterhead, then insert it into the
space between the gib and the cutterhead.
Knife
Gauge
gauge.
Qty
-27-