Shindaiwa 81188 Owner's/Operator's Manual page 9

Installing a Blade
Turn the C3410 upside down so the gear
case output shaft is facing UP and
remove the shaft bolt, bolt guard and
holder B from the gear case shaft.
1. Align the hole in blade holder A with the
matching hole in the gear case flange
and then temporarily lock the output
shaft by inserting a hex wrench
through both holes.
See Figure 12.
2. Slide the safety clip off-center.
See Figure 13.
3. Fit the blade over the safety clip and
then center it over the flange on holder
A. See Figure 14.
CAUTION!
Install the blade so its printed surface
is visible to the operator when the
brushcutter is in the normal operating
position.
WARNING!
The blade must fit flat against the
holder flange. The blade mounting hole
must be centered over the raised boss
on blade holder A.
NOTE:
When installing certain blades, it may be
necessary to temporarily remove the
safety clip.
4. Lock the blade in place by centering
the safety clip on the output shaft.
See Figure 14.
WARNING!
Never operate the C3410 without the
safety clip in place!
IMPORTANT!
The machined recess in holder B must
completely surround the safety clip, and
both holders must be flat against the
surface of the blade.
Shaft Bolt
Bolt Guard
Holder B
Output Shaft
Safety Clip
Hex
Wrench
Figure 12
Blade Holder B
Figure 15
5. Install blade holder B on the output
shaft. See Figure 15. The recess in the
holder must completely cover the safety
clip, and must fit tightly against the
blade.
6. Install the bolt guard and then the blade
retaining bolt. Using the combination
spark plug wrench/screwdriver, tighten
the bolt firmly in a counter-clockwise
direction.
7. Remove the hex wrench.
Safety
Clip
Holder A
Figure 13
Slip the Saw Blade
In Place
Figure 14
Output
Shaft
Blade
Hex Wrench
The C3410 should now be com-
pletely assembled and
ready for use with a blade.
Slide the safety clip off-center
Output
Shaft
Slide the Safety Clip
Back
Tighten the assembly (blade
not shown for clarity)
9