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8
Installing a Trimmer Head
NOTE:
The C3410 is shipped with Holder A, the
blade retainer (safety clip), Holder B, shaft
bolt, and bolt guard installed. The shaft bolt is
a LEFT-HAND thread. Remove it by turning
CLOCKWISE!
1. With the gear case output shaft facing
up, rotate the gearshaft and holder A
until the hole in holder A aligns with the
matching hole in the gear case flange,
and then lock the holder to the gear by
inserting the long end of the hex wrench
through both holes. See Figure 10.
2. Using the combination spark plug/
screwdriver wrench, remove the shaft
bolt and bolt guard. See Figure 10.
NOTE:
Make sure holder B is installed on the gear-
case with the splined hole engaging the gear-
case shaft.
3. Using the hex wrench to secure Holder
A , install and hand-tighten the trimmer
head (counter-clockwise to install).
See Figure 11.
5. Remove the hex wrench from the gear
case and holder.
The C3410 should now be completely
assembled to operate as a trimmer.
Hex Wrench
Hand-tighten Trimmer Head
(counter-clockwise to install)
Figure 11
Shaft Bolt
(not used)
Bolt Guard
(not used)
Gear Case
Shaft
Holder B
Holder A
Figure 10