16
7.0 The Cutterblock
The concept of the TERSA cutterblock is to allow the automatic clamping of the cutters using
centrifugal force. The exactness of the position is +/- 0.02mm, guaranteed on all the sharp
edges and on the whole length of the planing shaft. For correct use of the tool it is
recommended that a suitable product is used to occasionally clean the support runner of the
cutters.
To replace the knives on your PT the following guidelines should be followed:
Planer knives are razor sharp. Please handle them with the utmost care,
especially when turning the cutterblock by hand.
First isolate the machine at the mains. It is not sufficient just to shut off power at the machine.
Next put up a notice saying “cutters being changed”, in case you have to leave the machine for
any reason and someone else might try to use it not knowing the knives are loose. Clean off any
chippings and dust from the machine tables and move the fence and front cutterblock guard out
of the way.
Points to check on the cutterblock are
1.
Excessive wear of the block surface.
2.
Damage or distortion to the block.
3.
Damage to the threads on the retaining screws. Rounded corners within the allen heads.
4.
The condition of the bearings - check for movement and listen for noisy bearings.
AT NO STAGE SHOULD YOU ATTEMPT TO
UNTIGHTEN THE CUTTERBLOCK SCREWS.
TO DISENGAGE THE CUTTERS WITHIN THE
BLOCK FIRST DISCHARGE THE GIBS USING THE
BRASS HAMMER PROVIDED.
Summary of Contents for PT255
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