Oliver 4275C, Owner'S Manual

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4275C Jointer OLIVERMACHINERY.NET 31 | Page
Inspect Wood Grain
To achieve optimal results, cut WITH the grain. Inspect the wood grain from the side of a workpiece to
determine the feed direction. Avoid cutting against/across/end grain as severe kickback and chipping may
occur.
Sometimes it is impossible to cut with the grain for the entire length of a workpiece. In this case, try
feeding the workpiece in opposite direction and see what works best. Reducing the depth of cut and feed
rate can also help to improve cut quality.
Squaring Stock
Jointer is commonly used in conjunction with planer and table saw for squaring stock. Rough, warped
stock is milled so it becomes flat and square. It takes four steps for squaring stock:
It takes four steps for squaring stock:
1. Surface Planing - The bottom face of the stock is
flattened by a jointer. The concaved face should be
chosen for this step.
2. Thickness Planing - The top face of the stock is
flattened by a thickness planer. In this step, the
workpiece can be planed down to the desired
thickness.
3. Edge Jointing - The concaved edge is straightened and squared on a jointer.
4. The last edge is straightened with a rip cut on a table saw, with the jointed edge placed against the
table saw fence. In this step, the workpiece can be cut to the desired width.
CAUTION
Ensure the dust collection system is functional and use a dust mask. Inhaling
harmful airborne particles can cause serious, long-term health issues.
WARNING
Serious injury or death can result from machine kickback or accidental contact to
the cutterhead. Follow these safety rules to reduce your risks for all jointing
operations:
•
Begin operation with the concave, or the most stable surface for jointing.
•
Feed stock with a stable stance and at a steady rate.
•
Use eye and ear protection devices.
•
Cutterhead guard must be installed for all jointing operations.
•
Keep hands at least 3” away from the cutterhead.
•
Use push blocks whenever possible.