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STRING TRIMMER ATTACHMENT—STA1500 25
Install the new trimmer head
1. Position the flange removed in step
8 of the “Remove the trimmer head”
section onto the motor shaft with
the bulge facing away from the base
(Fig. 23).
2. Position the flange cover onto the
flange with its flat surface facing
outwards (Fig. 24).
3. Align the mounting hole in the new
spool base with the motor shaft and
mount the new spool base onto the
shaft.
4. Position the plain washer onto the
motor shaft (see Fig. 20).
5. Mount the nut onto the shaft, and
pre-tighten it COUNTERCLOCKWISE
by hand.
6. Rotate the spool base to align the
slot in the flange with the hole in the
gear case (see Fig. 17).
7. Insert the hex wrench provided
into the aligned holes to act as
a stabilizer (see Fig. 18). Use the
multi-function wrench provided to
tighten the nut securely onto the
shaft (Fig. 25).
25
23
Bulge facing away from the base
24
Flat surface facing outwards
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