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G1017 12'' Portable Planer -19-
SECTION 8: MAINTENANCE
Lubrication
Since all bearings are shielded and permanently
lubricated, simply leave them alone until they
need to be replaced. Do not lubricate them.
As for other items on this machine, such as the
depth adjusting screw-threads, an occasional
“shot” of light oil is all that is necessary.
Regular periodic maintenance on your Model
G1017 Planer will ensure its optimum perfor-
mance. Make a habit of inspecting your planer
each time you use it. Check for the following con-
ditions and repair or replace when necessary.
General
Routinely check the condition of the follow-
ing items and repair or replace as neces-
sary:
• Loose mounting bolts, extension
wings, or handles, or excessive play
in the depth of cut adjustment.
• Worn switch.
• Worn or damaged cords or plugs.
• Dull or damaged cutterhead knives.
• Any condition that could hamper the
safe operation of the machine.
Serious personal injury may occur.
Knife Sharpening
Knife sharpness is one of the most important fac-
tors in getting good results with the planer. Knives
can be made to last a long time if care is taken in
checking the condition of the wood which is put
into the machine. The biggest problem will come
from wood with nails or other metal embedded.
This will nick or chip the knives and can require a
complete regrinding. Another wear factor is sand,
grit, or other dirt on the surface of the wood which
the knives have to cut through. At the speed the
cutterhead is rotating, these types of surface con-
tamination can have a very abrasive effect.
This planer has knives with a grind angle of 50˚
which is a configuration which should suit most
general planing needs. The optimal grind or bevel
angle is a compromise between effective cutting
(the smaller the angle the better the cutting
action) and edge life where the larger the angle
the more the edge is supported, thus the longer it
will last.
For the best results it is best to have planer knives
sharpened by a professional sharpening service
which has the grinding and measurement equip-
ment to assure that the knife cutting geometry is
maintained at optimum levels. It is a procedure
which requires some care and precision, other-
wise a set of blades can be easily ruined. Knives
should always be ground as a set so they can be
properly matched. Unequal material removal can
result in an unbalanced cutterhead which can
affect not only planing surface quality but ulti-
mately the life of the cutterhead bearings.
Please refer to Section 6 Adjustments - Knife
Setting for complete detail on the removal and
reinstallation of planer knives.