Diamond Products CC7074 - Manual (Page 17)

14
Blade Speed
Refer to the CC7074 RPM Chart, the blade, or the blade
packaging information for the recommended blade
speeds when cutting. DO NOT exceed the maximum
recommended blade speed. DO NOT use a blade for
cutting that requires a lower speed than the minimum
blade shaft speed.
Wrench
Use the wrench provided when installing or removing a
blade. Apply force to the opposite end of the wrench and
tighten the blade shaft bolt/screw to 125 ft-lb (170 Nm)
minimum to secure the outer flange and blade. Note:
125 ft-lb is equivalent to applying 125 pounds at the end
of a 12” wrench.
Figure 8: Wrench
Installing the Blade
WARNING
 DO NOT install a blade with the
engine running.
 Failure to properly secure the
outer flange and blade may cause parts to
loosen or fall off the saw, resulting in serious
injuries or death!
 DO NOT pivot the front of the blade guard up
or down when installing very large blades.
Attempting to pivot the front of a heavy guard
when the guard is positioned higher up for
blade installation makes the guard difficult to
lift and/or lower. In this situation, remove the
blade guard front instead of pivoting it.
 Always secure the pivoted section of the blade
guard using the detent pin (guards 26” and
up).
CAUTION
 Wear gloves and be alert to the surrounding
environment when handling blades.
The blade can be installed on the right or left side of the
saw. Install the blade on the side preferred or most
appropriate for the cutting task.
1. Select a blade size and type. Remember to check
the blade for damages and discard as necessary.
Note: If changing the blade size, adjust and/or
change all necessary saw components according to
the information in the CC7074 Parts List.
2. Remove the detent pin (guards 26” and up) from the
guard hinge and pivot the front of the blade guard
180° (fully upward) to gain access to the blade
flanges. For larger, heavier guards that are
positioned too high up and are unsafe to pivot,
remove the lock nut and screw from the center of the
guard hinge. Remove the front of the guard. Note:
Have a second trained operator hold the guard in
place while removing the hinge screw and nut.
Figure 9: Detent Pin
3. On the pivoted guards, insert the detent pin through
the interlocking barrels on the top of the guard to
secure the front of the guard. Note: Failure to fully
pivot and secure the front of the guard may cause
serious injuries.
4. Remove the blade shaft bolt. Note: clockwise
loosens on right side, counterclockwise loosens on
left side (when viewed from the operating position)
using the provided wrench.
5. Carefully remove the outer flange. Inspect the flange
assembly and clean or replace dirty/damaged
components.
6. Place the blade against the inner flange. For large
blades, carefully roll the blade up to the inner flange.
Adjust the height of the saw to align the flange and
blade arbor. Note: Point the arrow printed on the
blade in the direction of the blade shaft’s rotation.
7. Align and fit the outer flange and flange pin through
the blade and into the inner flange and blade shaft.
Note: The outer flange should fit snug with the
blade, inner flange, and blade shaft.
8. Slightly rotate the outer flange and blade backward
to eliminate backlash (looseness) between parts.