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Operation
For safety and best results, please take the following steps for operating this machine.
Step 1: Preparation
Only Use Natural, Good Quality Wood
Only plane natural, good quality wood materials. Cracked stock, board with loose knots, plywood, and
other engineered wood products can break apart and cause severe kickbacks, which can lead to severe
injuries and machine damages.
Do not plane treated lumber or anything that contains harmful chemicals, as this will spread wood dust
that contains such harmful chemicals. NEVER plane boards that are shorter than 7" as mentioned in the
specifications.
Inspect the Workpiece
Carefully inspect workpieces for foreign objects. Nails, staples, rock chips, and other objects embedded
on the wood surface will damage the planer. To avoid chipping/dulling the cutter inserts, it is advised to
clean a workpiece with a stiff brush to remove all dirt and foreign objects before planing, especially for
rough sawn or reclaimed lumber. Use a metal detector to scan for metal objects as needed.
Check Moisture Content
Check the moisture content of the workpiece before work begins. "Green wood" with moisture content
over 20% will not cut properly and may jam the machine. Excessive moisture content will also cause the
planer's unpainted surface to rust. Besides, as the workpiece dries, the once-flattened surface can
become fuzzy and warped again. It is recommended to allow the workpiece to dry and stabilize before it
is processed.
Warped Stock
The workpiece should have a flat bottom to be processed by a planer. It is acceptable to process a slightly
cupped board with the cupped side facing down and begin with light cuts. Boards with moderate cupping,
bowing, or twisting should have one side face-jointed before being processed by a planer.
Avoid using boards with severe warping, as they can be unstable and might cause severe kickbacks during
operation.
Glue-Ups
Glue left on the workpiece surface can dull the cutters and reduce cut quality. Scrape off all glue deposits
from the workpiece before the work begins.
Wood Grain Direction
This planer is designed to plane WITH the grain direction of the wood. Do not plane cross-grain or end-
grain. Severe kickback and chipping may occur.
4430 Planer
OLIVERMACHINERY.NET
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