Hitachi NR90GC Service Manual - Page 30
Regrinding the Driver Blade, Grinding surface - service
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UPC - 717709008533
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9-4. Regrinding the Driver Blade The tip of the driver blade should be ground as shown in Fig. 20. 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 Slant 5û Grinding surface Fig. 20 --- 27 ---
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--- 27 ---
9-4. Regrinding the Driver Blade
The tip of the driver blade should be ground as shown in Fig. 20.
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.
Fig. 20
Slant
Grinding surface
Driver blade
5
ß