Starting Your Engine - Weed Eater BC3100 Operator's Manual

the raised part of the retaining washer is
facing the gearbox, and the raised area fits
into the hole in the center of the blade.
S Slide the blade and retaining washer onto
the shaft of the gearbox.
S Now place the cupped washer onto the
shaft. Make sure the cupped side of the
washer is toward the blade.
S Install the blade nut by threading onto the
shaft counterclockwise.
Shield
Threaded
Shaft
Dust Cup
Retaining
Washer
Cupped
Washer
Nut
WARNING:
Do not use any blades, or
fastening hardware other than the washers and
nuts illustrated. 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:
Make sure all parts are in place as il-
lustrated, and the blade is sandwiched be-
tween the dust cup and the retaining washer.
There should be no space between the blade
and the dust cup or the retaining washer.
S Align hole in the dust cup with the hole in the
side of the gearbox by rotating the blade.
S Insert a hex wrench into the aligned holes.
This will keep the shaft from turning while
tightening the blade nut.
Hex Wrench
S Tighten the blade nut firmly with a wrench
while holding hex wrench in position.
S Remove the hex wrench.
S Turn blade by hand. If the blade binds
against the shield, or appears to be uneven,
the blade is not centered, and you must re-
install.
NOTE:
To remove blade, insert hex wrench
into aligned holes. Un-thread nut and remove
parts. Be sure to store parts and instructions
for future use.
FUEL YOUR UNIT
This engine is certified to operate on unleaded
gasoline. Gasoline must be mixed with a good
quality 2-cycle air-cooled engine oil designed to
be mixed at a ratio of 40:1. Poulan/Weed Eater
brand oil is recommended. (A 40:1 ratio is ob-
tained by mixing 3.2 ounces of oil with 1 gallon of
unleaded gasoline). When mixing fuel follow the
instructions printed on the container. Always
read and follow the safety rules under FUEL
SAFETY.
STARTING
STOPPING YOUR ENGINE
S Move the ON/STOP switch to the STOP
position. (Toward the cutting head).
S If engine does not stop, move choke to the
Blade
FULL CHOKE position.
On/Stop
Switch
Throttle Trigger

STARTING YOUR ENGINE

WARNING:
head will turn while starting the engine. Avoid
any contact with the muffler. A hot muffler can
cause serious burns.
NOTE:
A special feature called the "Throttle
Lock" holds the throttle trigger in the depressed
position during starting.
S Lock throttle trigger into the starting position
by first pressing the lock--out lever on the
top of the control handle. While the lock--out
lever is depressed, squeeze and hold the
throttle trigger.
Throttle Trigger
S Before releasing the throttle trigger, press
the lock button. While this button is still de-
pressed release the throttle trigger.
NOTE:
This should allow the throttle trigger
to remain in the depressed position for start-
ing. You may want to practice this a few times
before you first start the unit.
S DO NOT squeeze throttle trigger during
starting; otherwise, it will be necessary to
reset the throttle lock.
COLD ENGINE OR WARM ENGINE
AFTER RUNNING OUT OF FUEL
S Rest engine and shield on ground, support-
ing trimmer head off ground.
S Move the switch to the ON position.
7
On
Stop
The blade or trimmer
Lock Button
Lock--out
Lever