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9-2. Regrinding the Driver Blade
The tip of the driver blade should be ground as shown in Fig. 8. To grind with a grinder, gradually grind the tip
while cooling the ground area with water to prevent it from being excessively heated. Excessive grinding will
rapidly reduce the service life of the driver blade. In such a case, replace the driver blade.
Driver blade
Concave
5˚
Grinding surface
Fig. 8
9-3. Possible Causes and Corrections of Air Leakage
Air leakage repair location
A
B
G
E
F
C
D
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