15
II. OPERATION
A. Installing the Blade
1. Verify that the GC25E UP is disconnected from the power supply and that the
ON/OFF switch is in the “OFF” position.
2. Remove the 5/16”-18 UNC x ¾” Right Hand Thread Cap Screw, 5/16 Lock
Washer, 5/16 SAE Washer from the end of the blade (rotate Counter Clock Wise
- CCW).
3. Remove the 5/8”-11 Left Hand Thread Hex Nut (rotate Clock Wise – CW).
4. Inspect the Blade Collars for damage.
5. Inspect the Diamond Blade for the following:
a. Correct Diamond Blade for the material being cut
b. Direction of rotation
c. Stress Marks or Cracks – sign of overheating the blade. Do not use if
present replace the blade before use.
d. Heat Marks or bluing – sign of overheating the blade. Do not use if
present replace the blade before use.
e. Verify that all blade segments are in place and are in good working
condition.
6. Install the blade – NOTE Direction of rotation for the blade must be CCW (Up)
a. Make sure that both of the collars mating surfaces are clean and
undamaged – just like any other concrete saw.
Use only Norton Diamond Blades. This machine was not designed for the
use with abrasive blades.
7. Place the outer collar over the blade shaft – same as any other concrete saw –
make sure the flat mating surface faces the blade.
8. Attach and tighten the 5/8”-11 Left Hand Thread Hex Nut rotate CCW.
9. Attach and tighten the 5/16”-18 UNC x ¾” Right Hand Thread Cap Screw, 5/16
Lock Washer, 5/16 SAE Washer rotate CW.
10. Close the Blade Cover and tighten the Blade Cover Wing Nut.
11. You should be ready to go at this point.
NOTES:
Never transport any concrete saw with the blade attached to the blade
shaft as the blade may be damaged during shipment.
