Changing the HM/TC Planer Blades

Take care when changing the planer blade. Do not pick up the planer blade by the cutting edges. You may be injured by the sharp cutting edges.

Use only original Bosch HM/TC planer blades.

Hard metal (HM/TC) planer blades have two cutting edges and can be turned. If both cutting edges become blunt, the planer blades (23) need to be changed. HM/TC planer blades must not be resharpened.

Removing the Planer Blades (see figures G–H)

To turn or replace the planer blades, turn the blade head (16) until the clamping jaw (15) is parallel with the planer base plate (11).
Undo the three fastening screws (14) using the Torx key (13) (approx. 1–2 turns). The clamping jaw (15) does not need to be removed.
Turn the blade head slightly and use a piece of wood to push the planer blade (23) to the side and out of the blade head (16).
Turn the blade head 180° and remove the second planer blade.

Fitting the Planer Blades (see figures I–J)

The guide groove on the planer blade ensures a constant, even height setting when changing or turning the blade.

If necessary, clean the blade seat in the blade head (16) and the planer blade (23).

When fitting the planer blade, ensure that it is correctly seated in the mounting guide of the blade head (16).

The planer blade must be fitted and aligned with the centre of the planer base plate (11). Then tighten the three fastening screws (14) using the Torx key (13), following the tightening sequence (①②③) specified on the clamping jaw (15).

Note: Check that the fastening screws (14) are firmly tightened before start-up. Turn the blade head (16) by hand and ensure that the planer blades are not brushing against anything.