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13 Changing the Planer Knives
To be able to change the planer knives, please first proceed as follows:
• Set the main switch (1) shown in Figure 11 to the "I" position.
• Set the brake release switch (10) shown in Figure 12 to the left "Brake Released" position.
(so that the cutter head can be turned by hand into the optimum position for changing the knives).
• Then turn the cutter block (M) shown below manually to the desired position.
• Turn the main switch (1) back to position "0".
• Then open the protective cover with the bow handle (4) shown in Figure 11.
• Fold up the hole cover (A) as shown below.
Figure 42: Making the cutter block accessible
Switch off the machine during maintenance and repair work and secure it against being
switched on again unexpectedly! Lock the main switch with a padlock!
Even when stationary, cuts from the knives are possible!
Always wear protective gloves when changing the knives!
13.1 Changing the TERSA Knives on an All-Steel Cutter Block (standard)
Only use original replacement planing knives from the manufacturer. The blades must always be the same
length as the maximum planer width (630 mm with 436|100).
• Knock back the pressure bar segments using a hammer in combina-
tion with the brass wedge (3) included in the delivery or a piece of
wood. Please do not use a screwdriver or similar made of steel, oth-
erwise the blades will be damaged!
• Pull out the knife (1) sideways
→ Turn the knife resp. replace and reinsert it.
• The knives are automatically tensioned to the correct knife flight
circle by the centrifugal force acting on the pressure bars (2).
• To ensure absolute clamping of the knives after changing the knives,
an initial planing with hardwood over the entire planing width is
necessary.
Suitable replacement knives for your Tersa cutter can be found in section 16.1.1
BA_PH_436-100_EN_44-21.docx
3
1
2
Figure 43: Changing Tersa knives
37
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