Weed Eater BC3100 Operator's Manual page 6

S Insert a hex wrench into aligned holes. This
will keep the shaft from turning while tight-
ening the trimmer head.
Hex Wrench
S While holding the hex wrench in position,
thread trimmer head onto the shaft and
tighten until secure.
NOTE:
The retaining washer must be posi-
tioned with the raised section facing toward
the gearbox.
ASSEMBLY INFORMATION - -
BRUSH BLADE
BRUSH
BLADE
NOTE:
If your unit has been assembled for
trimmer head use, refer to the section ATTACH-
ING THE PLASTIC SHIELD AND TRIMMER
HEAD and reverse the steps to remove the
plastic shield and trimmer head before you
mount the metal shield and blade. Store these
parts for future use. Never use the trimmer head
with the metal blade installed.
ASSEMBLY OF THE METAL SHIELD
DANGER:
The metal shield must be
properly installed on the tool anytime the tool
is used with the blade. The forward tip of the
metal shield helps to reduce the occurrence
of blade thrust which can cause serious injury
such as amputation to the operator or by-
standers. Failure to install the shield in the
position shown can result in serious injury to
the operator. The length of the shield must be
aligned with the length of the tube.
DANGER:
The blade is sharp and can
cut you. Be sure to wear gloves while working
with blades.
S If your unit has a plastic cover over the
threads on the shaft, remove the covering
to expose the threads.
S Place the metal shield under the gearbox,
and align the screw holes.
Gearbox
Shield
S Insert the 4 mounting screws through the
bottom of the shield. Thread them into the
gearbox. Tighten evenly and securely with
one of the hex key wrenches provided.
ASSEMBLY OF THE METAL BLADE
WARNING:
Do not use any blades, or
fastening hardware other than the washers and
nuts illustrated in the following illustrations.
These parts must be provided by Weed Eater,
and installed as shown below. Failure to use
proper parts can cause the blade to fly off and
seriously hurt you or others.
NOTE:
When installing the blade, make sure
you install it with the correct side facing up
(marked on the blade). If you are re-installing
an older blade and the writing has worn off,
use the following illustration as a guide.
Top view of blade
Teeth on
blade point in
this direction
NOTE:
The dust cup and retaining washer
are located on the gearbox and not in the
parts bag.
S Remove the retainer washer from the gear-
box, and leave the dust cup on the gearbox.
NOTE:
It may be necessary to remove a
plastic protective covering
threaded shaft before removing the retain-
ing washer.
Retaining
Dust Cup
Washer
S Install the blade over the threaded shaft ex-
tending from the gearbox between the dust
cup and the retaining washer. Make sure
6
from the