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H2801 4" Jointer -21-
Replacing Knives Replacing Spring
Motor Brushes
Replacing Belt
To replace the cutterhead knives:
1. Unplug the power from the jointer!
2. Block the cutterhead guard so it stays open,
or remove the cutterhead guard. Lift the knife
and knife clamp from the cutterhead and
clean any sawdust and resin buildup from
the cutterhead and knife clamp.
3. Position the knife clamp against the replace-
ment knife and install the assembly in the
cutterhead.
4. Secure the knife and knife clamp with the
three knife clamp screws. Do not completely
tighten the knife clamp screws yet.
5. Check and adjust the knife height as
described in the “Knife Adjustment” instruc-
tions. Tighten the knife clamp screws.
6. Recheck the knife height and make sure
knife is still level with the outfeed table.
7. Repeat these procedures with the other
knife, then make sure that all of the knife
clamp screws are tight. Replace the guard!
If the guard spring loses its tension, it must be
replaced. To replace the guard spring:
1. Unplug the power from the jointer!
2. Follow the “Guard Adjustment” instructions
for removing the knife guard.
3. Remove the spring from the dimple and get
a new spring from the Grizzly service depart-
ment.
4. Follow the “Guard Adjustment” instructions
for replacing the spring and guard cover.
To replace the belt:
1. Unplug the power from the jointer!
2. Lay the Model H2801 on its back so the
switch is facing up, and remove the belt by
turning the pulley while applying outward
pressure.
3. Install the new belt by turning the pulley
while applying inward pressure.
After prolonged use, the motor brushes may
eventually wear out. Call the Grizzly parts depart-
ment to obtain replacement brushes. To
inspect/replace these brushes:
1. Unplug the power from the jointer!
2. Under the outfeed table, there are four bolts
that attach the motor to the jointer base.
Remove these bolts and remove motor from
the jointer.
3. The brush caps are visible from the side of
the motor. They look like the head of a large
slotted (flat-head) screw. Use a flat-head
screwdriver to remove the brush caps.
4. Remove the brush cap assembly and
replace the old brush with the new brush.
Make sure the brushes are clean and slide
freely in their guides.
5. Replace the brush assemblies and brush
caps. Re-install the motor to the jointer.