Makita 1912B Owners Manual - Page 8
Operation - - power planer
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For the correct planer blade setting Your planing surface will end up rough and uneven, unless the blade is set properly and securely. The blade must be mounted so that the cutting edge is absolutely level, that is, parallel to the surface of the rear base. Below are some examples of proper and improper settings. (A) Front base (Movable shoe) (B) Rear base (Stationary shoe) Correct setting (A) Nicks in surface EN0004-1 Although this side view cannot (B) show it, the edges of the blades run perfectly parallel to the rear base surface. Cause: One or both blades fails to have edge parallel to rear base line. Gouging at start Cause: One or both blade edges (A) (B) fails to protrude enough in relation to rear base line. Gouging at end Cause: One or both blade edges (A) (B) protrudes too far in relation to rear base line. OPERATION 2 1. Start 2. End 8 001608 1 Planing operation First, rest the tool front base flat upon the workpiece surface without the blades making any contact. Switch on and wait until the blades attain full speed. Then move the tool gently forward. Apply pressure on the front of tool at the start of planing, and at the back at the end of planing. Planing will be easier if you incline the workpiece in stationary fashion, so that you can plane somewhat downhill. The speed and depth of cut determine the kind of finish. The power planer keeps cutting at a speed that will not result in jamming by chips. For rough cutting, the depth of cut can be increased, while for a good finish you should reduce the depth of cut and advance the tool more slowly.