Specifications

14
Changing the Planer Blades
Planer knife
Chipbreaker/wedge
Clamping Bolt
Spring
Fig 14
MAKE SURE THAT THE MACHINE IS DISCONNECTED
FROM THE POWER SUPPLY!
The planer blades are mounted into 3 slot housings
machined in the cutter block.The slot housing
comprises of a slot cut on a radial axis with a reverse
tapered slot alongside it. (See fig. 14) The depth of the
first slot governs the seating of the chipbreaker/
wedge, the second slot allows the blade to be set to its
correct depth in the block.
The chipbreaker/wedge is machined with a tapered
face set at the same angle as the slot. This allows the
blade to be clamped between parallel faces. The block
will accept blades 250mm x 3mm x 30mm. After
sharpening, the blades will reduce over their height
dimension, but the blades can be safely used until
their overall height dimension is 17mm, then the
blades must be discarded as they can no longer be
securely clamped in the housing. The reverse taper
slot has a series of blind holes bored in the bottom
surface into which springs are fitted. These springs act
against the bottom of the planer blade, to push it into
contact with the setting tool, when the blades are
being positioned after changing.
Overview