a condition
in certain individuals.
numbness,
upon exposure to
cold and
are all thought
symptoms. lt is
or
There
possibly
a) Keep
and
blanching ofthe
cold. Hereditary
dampness,
to contribute to
presently
extent of exposure
are measures that
reduce
the effects
your
ating the
body warm
unit wear
warm. It is reported
contributing
b) After
to Raynaud's
period
each
blood circulation.
c) Take
exposure
d) Keep
and worn
you
lf
experience
immediately
these
symptoms.
r
Mix
and store fuel in
I
Mix
fuel outdoors
Wipe
up any fuel
site
before starting
after stopping
r
Stop the
storing
the unit.
r
Allow
the engine
the
unit from moving
frequent
the tool well
work breaks.
per
day.
parts
replaced.
any of the symptoms
discontinue
where there
spillage. Move
engine.
engine
and allow to
to cool;
around the
hot from
muffler or
operation.
and remove the
adjustments
Wear
repairs
or
your protective
When the
attachment has
each
for
use
loose fasteners,
any damaged
that vibrations
parts
will rotate
from
during carburetor
called Raynaud's
Symptoms
may include
fingers, usually
factors,
diet, smoking,
and work
the development
unknown what, if
may
contribute to the
can be taken
by the
of vibration:
in cold weather.
gloves
to keep hands
that
cold weather is
Syndrome.
of operation,
exercise
Limit the
maintained,
fasteners tightened,
use and seeyour
a container
approved for
are no soarks
30 ft. away from
engine.
Slowly remove the fuel
Do not smoke
when refueling,
cool before refueling
empty the fuel tank
before transporting
cylinder of the
plug
spark
except for
equipment
unit is turned
stopped
before
before
use.
hand,held
Syndrome
tingling,
apparent
exposure to
practices
of
any, vibrations
condition.
operator to
When
and
wrists
a major factor
to increase
amount
of this
condition,
physician
gasoline.
or flames.
refueling
and secure
in a vehicle.
wire
fuel
toots
these
oper-
of
about
cap
or
SPECIFIC
SAFETY
USE
string
Replace
r
in
installed
serious
l\ilake
r
properly
Use
I
cutting
To
head
inlury.
I Never
and
r
Maintain
string
head
SPECIFIC
CUTTER
I
After engine
or
r
Do
guard
r
Use
when
r
Always stop
before attempting
jammed
the blade.
I
Do
rotating.
r
A
to
released. Maintain
completely
Be
way.
any
install
securelyfastened'
and
injury.
guards, straps, deflectors,
all
sure
securelY
and
manufacturer's replacement
the
only
Do
head.
other
any
string
this
to
operate
good
condition.
in
a firm
head below
over 30 in. or more above
located
SAFETY RULES FOR
AND BLADE USE
pulpy
coasting
stops, keep rotaiing blade
stalks until it stops
not operaie the brushcutter unless
is firmly secured
gloves
heavy
installing or removing blades.
the engine and remove
the blade or before
in
not
attempt
blade can cause
after the
spin
stopped
RULES FOR
if cracked,
head
string head
the
sure
attached.
not use
brand of replacement
trimmer
unit without
grip
on
both handles while
waist level.
in
when
operating
to remove any obstruction caught
touch
to
engine is stopped or throttle trigger
proper
rotating.
TRIMMER
chipped,
Failureto
any other
can result in
grass
the
Never
place
and in
removing
or stop
injury while it continues
control until
or damaged
or blade is
do so can cause
handles
and
string in
cutting attachment.
string
serious
deflector
trimming.
cut with
ground.
the
BRUSH-
in thicker weeds
the brushcutter
good
condition.
the brushcutter
the spark
and
the blade when it is
the blade has
properly
are
the
or cutting
personal
place
in
Keep
the
string
and
plug
wire
or
installing
I
Replace any
sure blade
each use.
before
inJury.
I
only
Use
for use on
intended
To insiall any
blade.
this brushcutter
r
The Tri-Arc@
pulpy
stalks
Tri-Arc@
use the
I
r
I
r
extreme
Exercise
Blade
unit.
the spinning
contact may
suddenly "thrust"
hit. This reaction
erator to lose
without warning
more likely to occur
material being
the weeds being cut
an unexpected object
Carefully remove the tool
box. Make sure that all items
included.
r
lnspect
damage
I
Do not
fully inspected
r
lf any
1
-800-860-4050 for
PACKING
Trimmer
Assembly
Brushcutter
Front
handle
"J"
Handle
Curved
Shaft Grass Deflector
Straight
Shaft Grass
Gear Head Locking
Shoulder Harness
String
Head Assembly
Bottle
of 2-Cycle Oil
Hanger
Cap
Operator's Manual
STRING
1a - 1c.
product
of this
on the tool and in this
of the
produci,
and safety rules.
positions
the tool carefully
occurred during shipping.
discard the
parts
- BC30
familiarize
DESIGN
the
of
trimmer
comfort and ease of
and at different angles.
requires assembly.
packing
and satisfactorily
are damaged
assistance.
LIST
- CS30 and
Assembly
-
- CS30 and
Deflector
Tool - BC30
- BC30
- BC30
BC30
TRIMMER
requires
project you
yourself
provides
for
grasp
and any
listed in the
to make sure no
material until
operated the tool.
or missing,
SS30
SS30
- SS30 and BC30
an understanding of
operator's manual as
are
attempting. Before
with
all operating
easy handling. lt is
when operating in
accessories from the
packing
list are
breakage or
you
have
care-
please
call
GRASS DEFLECTOR
The trimmer
you
from
flying debris.
includes
TOP-MOUNTED
The top-mounted motor
from
away
the dust
grass
a
MOTOR
and debris
A wRRt'rttc'
parts
lf any
tool
ing
are damaged or missing
parts
until the
could result in serious
are replaced.
A wnnrurruc'
Do not
attempt to modify this
ries
not recommended
alteration or modification is
hazardous
rnJury.
A
To
personal
wire from the
condition Ieading to
wlnrurruc,
prevent
accidental starting that
injury,
spark
for use with this
always disconnect the
plug
deflector that
improves
balance and is located
the cutting
of
Failure to heed
personal
tool or create accesso-
misuse and could result
possible
when assembling
helps
area.
do not operate this
injury.
tool. Any such
serious
could cause serious
engine spark
parts.
protect
this warn-
in a
personal
plug
Fig. 1c
8
POWER
INSTALLING
ATTACHMENT
Figure
See
wRnulruc'
A
install,
Never
power
serious
cause
attachment
The
coupler
a
r
Loosen
remove
and
r
Push
the buttonwith
slide
and
shaft
NOTE:
positioning
Slightly
place.
into
r
Tighten the knob securely.
THE
2.
or adjust
remove,
is running.
head
personal
connects
device.
the knob on
the end cap
the button
in
the two shafts together.
the button locks into the
until
the button does not release completely in
lf
hole, the shafts are not locked into
rotate from side to side uniil the button
injury.
the
located
theguide
Failure
power
to the
coupler
from the attachment.
on the
recessonthe
A wlnuuc,
Be cedain the knob is fully
equipment; check
to
avoid serious
REMOVING
it
personal
THE ATTACHMENT
POWER HEAD
For removing or changing
I
Loosen the knob.
I
Push in the button and twist
seoarate ends.
ATTACHING THE STORAGE
See Figure 3.
There are two ways to
I
To use the hanger cap,
hanger cap over end of
rotate the cap from side to side until
Slightly
into
locks
I
The secondary
for
olace.
hanging
hole in the attachment shaft can
purposes
tightened before operating
periodically
injury.
the attachment:
the shafts to
your
hang
push
in the
the lower end attachment
as well.
HEAD TO THE
any attachment while
to
stop the engine can
head bv means of
power
of the
attachment
Rotate
positioning
tightness during use
for
HANGER
attachment
button
head
shaft. Align
powerhead
the attachment
hole.
is locked
FROM THE
remove and
for storage.
place
and
the button
coupler
be used
shaft
the
place.
the
shaft.
ATTACHING
THE FRONT
SS3O
Figure
See
I
r
I
r
r
ATTACHING THE
See
"J"
A
maximizing operator
I
r
I
r
I
I
4.
Remove
2 wing nuts, 2 bolts,
handle.
Install
the front handle onto the
housing
and move it to
Place
the
through
bolt
NOTE:The
into
Reinstall
Tighten
Figure
Hold the top
the
ooerator's
lnsen
Align the bolt holes
1-112
Place
clamp.
to hold the
After
handle for
Tighten first
hex bolt head fits insidethe
one side of the handle.
the clamp,
wing nut
securely.
5.
handle must
shaft housing
in.) through the handle
assembly is complete,
be used for ensuring the
and bottom clamp
left.
the end ofthe handle
short boll(1/4-20
Inslall flat washers,
assembly in
best balance and
the long bolt
HANDLE
and clamp from the
too side of the
a comfortable
the front handle.
bolts, and wing
UJ"
HANDLE
safety when using
that
so
and
x 1 in.) through
place.
snugly in
handle will
between the
push
the
side.
lock washers,
adjust the
comfort.
then
and
the short bolt.
CS3O AND
-
drive shaft
position.
hex recess
nuts.
BC3O
-
a brushcutter.
be
long bolt
molded
best control
position
located
to the
clamps.
(1/4-20
opposite side
and hex nuts
position
of the
front
and
on
x
of
i
"'
r^
\
B0LT
1/4-20 x1-1l2in.
)/x
10
ATTACHING
A
line cutting
The
Avoid
result
can
ATTACH
TO
DEFLECTOR
Figure 6.
See
I
Remove
nut
r
Press
shaft
r
Insed
bracket on
I
Place the
cap
r
Place
securely.
TO ATTACH
DEFLECTOR.
Figure 7.
See
I
Remove
r
lnsert
grass
r
Align ihe screw
screw
r
Insert
into the
I
Tighten
ATTACHING
THE GRASS
unrulnc'
blade
with the blade. Failure
contact
in serious
THE CURVED
CSSO
-
hex screw,
grass
from
screw.
deflector.
grass
the
as shown.
the
the
the tab
deflector.
the wing screw
deflector onto the bottom of
hex screw ihrough the
the curved shaft.
flat washer and lock
wing nut on the
THE
SS3O
wing screw
the
on the mounting
hole in the
grass
deflector.
the screw
THE BRUSHCUTTER
BC30
Figure 8.
See
guard
The
models. Instructions
changing
operation.
I
Withthestring
I
I
is shipped
from string trimmer
gear
on the
Install
the
Tighten
mtntmum.
head as shown.
the three
guard
and
the screws securely
head
into the
DEFLECTOR
grass
the
on
personal
injury.
flat
washer, lock washer, and
grass
washer on the
hex head cap screw and
STRAIGHT
grass
from the
bracket
in the mounting
hole
grass
deflector.
the mounting
through
securely
installed
have been
removed,
hex head screws
on
included
operation
placethebrushcutterguard
gear
head.
torque
and
to
avoid
deflector
SHAFT
deflector.
in the slot
bracket
is
contact
GRASS
the curved
hex head
GRASS
bracket and
deflector
SHAFT
GUARD
brushcutter
these
reference
for
to brushcutter
back
from bottom
to 40-50
sharp.
wing
the
and
tighten
on the
with the
when
through
lb.
in
HEX
SCREW
BRACKET
'ah'
fl
rl
ATTACHING
BC30
:1
Figure
See
i
,t
I
Connect the latch on
T:
hanger.
r
Adjust the
\
\
W--*hBi[*
4/\
WASHER
WING NUT
ri
CONVERTING
STRING TRIMMER
To
convert
the
blade and
grass
deflector
REMOVING THE TRI-ARC@ BLADE AND
BRUSHCUTTER GUARD
Figures 10 - 1 1.
See
r
Align
gear
I
Place the
flanged washer and
I
Remove
r
Remove the cupped
r
Remove the flanged
retain it for the
r
Remove
gear
to
I
Remove
NOTE: Store the brushcutter
INSTALLING THE
DEFLECTOR AND
Figures 10 - 12.
See
r
Install
Shaft Grass
I
Place
NOTE: The hollow side of
gear
the
r
Align the slot in the flanged washer
gear
I
Place the
flanged
r
Install
turning
by
I
Tighten
CONVERTING
BRUSHCUTTER
To
convert
the
string
the
attach
THE SHOULDER HARNESS
9.
the
to a comfortable
strap
FROM BRUSHCUTTER TO
BC3O
-
from the brushcutter to the string trimmer, remove
brushcutter
and install the string head.
in the flanged washer with the slot in the
the slot
head.
gear
the blade nut by turning it clockwise.
the three
head.
the
brushcutter
grass
the
Deflector earlier in this manual.
the flanged washer
head.
head.
gear
washer
the
string head assembly onto the
counterclockwise.
the string
from the
head assembly
brushcutter
guard,
head locking tool through the slot in the
gear
head.
washer
washer
head installation.
string
screws securino
guard.
STRAIGHT
STRING
def lector. Refer to To Attach the Straight
the flanoed washer should face
head locking tool
gear
and
head.
head assembly securely.
FROM
BC3O
-
string trimmer
and straight shaft
guard
harness to the strap
shoulder
position.
attach the straight shaft
the blade.
and
gear
the
from
parts
the
on
STRING TRIMMER
to
install the
and
head
shaft
the
brushcutter ouard
together for Iater use.
SHAFT GRASS
HEAD
gear
head shaft.
with the slot in the
through the slot in the
gear
head shaft
the
brushcutter,
grass
blade.
remove
deflector,
and
TO
-
GEAR HEAD
FLANGED WASHER
>/
'@,1
sLoT<@\.
'll'J'hlt'+'
/
t,
REMOVING
DEFLECTOR
Figures
See
I
Align
gear
r
Place
flanged
I
Remove
clockwise,
I
Remove
installation.
I
Remove
r
Remove
NOTE: Store the string
use.
INSTALLING THE TRI-ARC@
BRUSHCUTTER
Figures 10 - 14.
See
r
Install the
Brushcutter Guard
r
Place the flanged
the hollow
I
Center the blade on the flanged
blade fits flat
goes
I
Install the
from
r
Place the
r
Place
flanged washer
r
Install
handed
r
Tighien the
mrnlmum.
THE STRAIGHT
AND STRING
10 - 13.
the slot in the flanged washer
neao.
gear
head locking
the
washer and
the
the flanged washer
the wing screw
the
gear
string head
grass
deflector.
head.
securing
head
GUARD
brushcutter
side
and the raised hub
through the hole
cupped washer with the raised
the blade.
blade nut onto the
gear
the
the blade nut
threads).
blade nut securely
guard.
earlier in this
washer
toward
the brushcutter
rn the blade.
head locking tool
gear
and
head.
by turning it counterclockwise
SHAFT
HEAD
tool
through
assembly
and
retain
the
parts
Refer to Attaching
manual.
gear
over the
washer, making
of the flanged washer
gear
head
through the
torque to 120
and
GRASS
with the
slot in the
the
slot in the
by turning
it for the
grass
deflector.
together
for later
BLADE AND
head
shaft with
guard.
sure the
center away
shaft.
slot
in.lbs.
blade
the
in the
(left
WASHER
FLANGED
toosEN
cuppro--v@^
*o'1lo,r,f-
ilunrEN
Fig. 13
FUELING
FUEL
This
pre-mixing
line and 2-cycle engine
proved
Recommended
unleaded
Mix a high
AND REFUELING THE
MIXTURE
product
powered
is
gasoline
and 2-cycle oil. Pre-mix unleaded
gasoline.
for
fuel: This engine is certified to
gasoline
intended for automotive use.
quality
2-cycle engine oil at2.6 oz.
by a 2-cycle engine and
oil in a clean 1
TRIMMER
gallon
container
rus).
not
Do
use automotjve
NOT mix
DO
period.
HIGH
FILLING TANK
I
I
I
I
NOTE: lt is normal for smoke to be emitted
engine
surface around fuel cap
Glean
contamination.
Loosen fuel cap slowly.
surface.
pour
Carefully
replacing the fuel cap, clean and inspect
Prior to
gasket.
lmmediately replace fuel cap and hand
any fuel spillage.
firsi use.
after
oil or 2-cycle outboard oil.
quantities
GASOLINE
gallon (US)
1
larger than usable in a 30
QUALITY
1 liter 20 cc
fuel into the tank. Avoid spillage.
2-CYCLE ENGINE OIL
2.6
Rest the cap on a clean
tighten. Wipe
OIL
to
A wnnunc,
Always shut off engine
machine with a running or hot engine,
a
30 ft. from refueling site before starting engine.
smoke!
before fueling. Never
Move at least
requires
gaso-
ap-
operate on
per gallon
day
oz.
(20
ml)
prevent
the
up
from a new
add fuel to
Do not
A wnnnrnc'
To avoid burns
the bottom of
Hold the trimmer with
your
left hand on
hands while
fortable
Always
top down. This will
the
the shaft
damage
the string head, STOP
plug
wire, and
throttle
PROPER
()PERATING
P0stTt0N
from hot
surfaces,
the
enoine above
your
the front handle. Keep a firm
in
ooeration.
position
with the rear handle about hip height.
operate trimmer at full throttle. Cut
housing and string head
from overheating.
remove the
will result in oil dripping from the muffler.
hand on the rear handle and
right
Trimmer should be held at a com-
prevent grass
grass
lf
THE ENGINE, disconnect the spark
grass.
Prolonged cutting at
never operate unit with
waist level.
grip
with both
grass
tall
from wrapping around
which could cause
wrapped around
becomes
from
partial
mnHrnc,
A
Do not allow familiarity
less. Remember that
suffrcient
Always wear
shields when
result
possible
to inflict serious lnjury.
wnnrutruc,
A
in objects
serious injury.
a careless fractlon
goggles
safety
operating tools. Failure io
being thrown into
with tools
or safety
your
to make
you
of a second is
glasses
with side
do so
eyes, resulting in
care-
could
A
Do not
mended
attachments
in serious
14
wnnntHc'
use any attachments or accessories
the manufacturer
by
or accessories
personal
injury.
of this
not
tool.
recommended
not
recom-
The
use of
can result
OPERATING
See Figure
wanrurruc,
A
Always
of
use
the user
lnturv.
7'
THE TRIMMER
15.
position
the unit on the operator's right side.
the
unit on the operator's left side will expose
to hot
surfaces and can result in oossible
The
burn
Fig. 15
tc
wnnrulruc'
A
trimmer away from
the string
hold
Always
clearance
ing
contact
result
ADVANCE
TO
String
grass while running
I
Run engine
r
Tap
string advances
Do not
NOTE:
will cut
NOTE:
advance
the engine,
ADVANCE
TO
I
Stop
I
Push
manually advance the string.
CUTTING
See Figures
r
Avoid hot surfaces
your
r
Keep the
the
r
The curved
right to left. The straight shaft
the unit from left to
the operator.
in illustration.
r
Use the tip of string
head into uncut
I
Wire and
breakage. Stone
wear string
I
Avoid
and
GRASS
between
the housing
with
in burns
advance
the spool
hold the spool retainer on ihe
line trimming cut-off blade on the
The
the line to the correct length.
lf the
string
the string by tapping it on
and manually advance
the engine.
the spool retainer down
TIPS
16
body.
trimmer tilted toward
cuiting area"
best
trees and shrubs. Tree bark, wood
fence
DEFLECTOR
other serious
and/or
THE CUTTING LINE
is controlled
engine at full throttle.
throttle.
at full
retainer on
each time the spool retainer is
is worn too shod
THE
CUTTING
-17.
by always keeping
(Proper
operating
shaft trimmer cuts
right. This will avoid
Avoid cutting in the dangerous
to do the cutting; do
grass.
picket
fences cause extra string
and brick walls, curbs,
rapidly.
posts
can easily be damaged
BLADE
Figure 18.
See
The trimmer is equipped
grass
on the
it is trimmed
string whenever
deflector.
For best cutting, advance
to length by the cut-off
you
hear the engine
the body keepthe body
or string trimmer
by tapping
ground
while
position
the area being cut;
when
trimmer cuts
LINE TRIMMING CUT-OFF
with a line
product.
and the
cutting head
personal
injury.
the string head
to
you
the
the string.
LINE
pulling
trimming cut-off
string. The
advance
ground.
grass
may not be able to
ground.
lf so, stop
MANUALLY
on string(s)
the tool away
figure 1 5.)
shown in
passing
the unit
when
throwing debris at
area shown
not force string
wear, even
and wood
moldings, siding,
by the string.
string
blade. Advance
running faster
Any
can
tapped.
deflector
this is
passing
blade
on
to
from
from
may
until
the
than
DANGER()US
AREA
CUTTING
TRIMMER
or when
normal,
best
maintain
to advance
properly.
SHAFT
CURVED
BEST CUfiING
STRAIGHT
STRAIGHT
CUT-OFF
performance
SHAFT
SHAFT
LINE TRIMMING
BLADE
trimming efficiency
and keep
TRIMMER
TRIMMER
CURVED
SHAFT TRIMMER
LINE
TRIMMING
BLADE
diminishes.
the
string long
CUT-OFT
This
OPERATING
Figures 19 - 20.
See
the brushcuiter with
Hold
the
and
grip
with both hands
be held at a comfortable oosition
hip height. Maintain
Position
the kickback reaction of the cutting blade.
by
Adjust the shoulder harness to
at a comfortable operating
shoulder harness
with the blade.
THE BRUSHCUTTER
your
hand on
yourself
your
the
while in operation. Brushcutter should
your
you
that
so
will reduce the risk
right hand on the rear handle
"J"
Barrier Handle. Keep a firm
with the rear handle about
grip
and balance on both
will not be drawn off balance
position
position
the brushcutter
to assure that the
and
of ooerator
BLADE THRUST
Exercise extreme caution when using
unit. Blade thrust
spinning blade contacts anything
may cause
"thrust"
the unit away from the object that
action can be violent enough to cause
control of the unit.
if the blade snags,
in
cur
areas
For cutting ease and safety, approach
with the brushcutter
an unexpected
practice
is
reaction that may occur when the
the
the blade to
where it is difficult to see the material being
could minimize the blade
stop
Blade thrust
stalls, or binds. This is more likely
from the right to the left. In the event
object or woody stock is encountered,
the blade with this
it cannot cut. Thrs contact
for an instant, and suddenly
can occur
was hit. This re-
the operator to lose
without warning
the weeds being cut
thrust reaction.
A wnnrurruc,
To
avoid burns
the bottom of the enoine above waist
TRI-ARC@ BLADE
The Tri-Arc@ blade is suited only for thicker
stalks. When the blade becomes dull,
to
extend the
blade.
Use only
your
local retailer.
CUTTING
A
Extreme care must
safe operation. Read the safety information
sure
operation using the blade, refer to Specific Safety
for Brushcutter and Blade Use earlier in
I
Always
when
I
Maintain
yourself
kickback
from hot surfaces, never operate unit
life
Tri-Arc@
blade,
of
the
Do not sharpen
blade.
part
number AP04105, available
TECHNIQUE - BLADE
wnRrurruc,
taken when using blades
be
hold brushcutter
operating. Use a firm
your grip
you
so that
reaction
your
on
grip
and balance on both
will
not be drawn off balance
the
of
cuttinq blade.
level.
weeds and
it can be turned over
this manual.
right side with both hands
both handles.
on
feet. Position
feet.
contact
to oc-
cut.
this
with
pu
lpy
the Tri-Arc@
at
to en-
for safe
Rules
by the
I
Inspect and clear the area of any hidden objects such
glass,
rocks, concrete, fencing,
r
Never use blades
ings or other
I
Never use a blade after hitiing a
inspecting
detected.
I
unit is used as a scyihe, cutting
The
in a broad sweeping action from side
left
r
Use only
blade or cutting
personal
serious
DIRECTI()N OF ROTATION
17
near
immovable
it for
damage. Do
the Tri-Arc@ blade. To install any other brand
head to this brushcutter can
injury.
wire, wood, metal, etc.
sidewalks,
objects.
fencing,
hard object without first
not
use
from the right to the
CUTTING AREA
if any damage is
to side.
OPERATING
P0stTt0N
posts,
build-
result in
PR()PER
trin lO
Fig. 20
as
STARTING
See
TO
DO
ano
r
Lay the
r
PRIME
r
SET
I
PULL
r
Wait 6-1
NOTE:
the RUN
to
TO START
PULL
TO STOP
Press
the
21 -
Figures
A COLD
START
squeeze
NOT
runs.
trimmer on a
- Press
the start
the rope
0 seconds,
Squeezing
position.
A WARM
the rope until
THE
and hold
engine stops.
STOPPING
AND
23.
ENGINE:
the throttle
the
lever
until the engine starts.
the
ENGINE:
the switch in the stop
trigger
flat, bare surface.
primer
bulb 7 times.
to the
START
then squeeze the
throttle trigger releases
ENGINE:
the engine starts.
the
until
posiiion.
trigger
" position
" @
engine starts
to run.
start lever
the
until
P()SITI()N
START
P0srTt0N
RUN
PRIMERBULI
Fi1.22
LEVER
START
LEVER
START
wnnrurruc'
I
When servicing, use only identical replacement
Use of any other
dil^+ drm.^a
^r
wnnuHc'
A
Always wear safety
shields during tool operation. lf operation is dusty, also
wear a dust mask.
wmrurruc'
A
inspecting,
Before
off engine, wait for all moving
shut
disconnect spark
plug.
Failure to follow these instructions can result in
personal
serious
GENERAL
Avoid using solvents when cleaning
plastics
are susceptible to damage from
commercial solvents and
cloths to remove dirt, dust,
clean
pads
may create a hazard or cause
goggles
or safety
cleaning, or servicing
plug
wire and move it away from spark
property
injury or
MAINTENANCE
may
be damaged
parts
damage.
plastic
grease,
oil,
glasses
parts.
with side
the machine,
to stop, and
parts.
various types of
by thelr use. Use
etc.
A wnnrurruc,
Do not
based
with
destroy
rnlury.
You
For
service
SPOOL REPLACEMENT
EZ WINDTM TAP ADVANCE
NEW
See Figures 24 - 25.
lf
tn
Use
facturer's
I
any time let brake fluids,
at
products, penetrating
plastic parts.
plastic
often make adjustments and repairs described here.
can
other repairs, have the trimmer serviced by an authorized
dealer.
PREWOUND
replacing
this manual.
.080 in.
only
replacement
the engine
Stop
the string head
remove.
Chemicals can damage,
which may result in serious
SPOOL
string only,
refer to
trimmer line.
diameter
string
and disconnect
turn the
and
gasoline, petroleum-
oils, etc., come in contact
SYSTEM
String
for
bbst
the
spool
weaken
personal
Replacement
Use original
performance.
plug
spark
retainer clockwise to
wire. Hold
manu-
Most
or
later
Fig.24
INSERT INTO
STRING HEAD
Fig. 25
I
Remove the empty spool
spring attached
I
Make sure
posite
of each string is extended approximately 6 in. beyond
each slot.
I
Align the slot(s) on the spool to the eyelet(s) on the string
head housing.
essary direction
r
Make sure the string head and the spool
installed on the drive shaft. Turn
terclockwise to
I
Slide strings into the housing
rotate the spool
r
Push the spool retainer down while
to manually advance the
assembly of the string head.
the two
each other on the new spool. Make sure the end
Push
from the
to the spool.
strings are captured
down and
to
align the slot(s).
secure.
into the cutting
turn the
the soool retainer
eyelets
position.
string and
head. Keep the
string
in the slots op-
spool
pull
and
pulling
to
check
in the nec-
retainer
outward
on string(s)
for
are
coun-
to
proper
Fig.
ZJ
19
STRING
See
r
I Remove
I
r
r
CLEANING
MUFFLER
NOTE:
amount
exhaust
become
power
iemove
recommend
this
SPARK
The spark
hours
REPLACEMENT
28'
26 -
Figures
disconnect
and
engine
the
Stop
the
remove.
NOTE:
any
Cut
Findthemiddleofthestringsection.
the
string
Nearing
uct.
on
dealer
head
string
the
Keep
old string
piece
one
in
hook
in the
the end
slot
each
into
the spool
Replace
Replacement
Depending
of oil
port,
blocked
with
loss
these
service.
ARRESTOR
arrestor
yearly to ensure
or
arrestors
Spark
the model
the location
for
turn
and
from
spool
the spring
remaining
trimmer
of
the center
direction
of the
spool. Do
of the
and
earlier
THE
the type
on
and/or
used,
and/or
muffler,
with carbon
gas
your
to
deposits
qualified service
only
that
must
may
purchased. Please
of the
the
the spool
the string
attached
the spool.
on
ft. long.
line 18
the spool.
of
indicated
in this
on
string, slide
not
the spool
manual'
EXHAUST
of fuel
your
operating
sparK
deposits.
powered tool,
performance.
restore
cleaned
be
performance of
proper
different
be in
contact
spark
spark
retainer
head.
to
Loopthestringaround
the
one
overfill.
retainer.
arrestor
arrestor
plug
wire.
clockwise
the spool.
wind
Carefully
the spool.
top of
the string
of
end
Referto
PORT
the
used,
conditions,
screen
you notice
lf
you
may
replaced
your
nearest
your model'
for
We
your
depending
technicians
or
locations
Hold
to
Remove
the
Spool
AND
type and
the
may
to
need
highly
perform
25
every
prod-
service
REPLACING
Figures 29
See
proper performance
SPOOL
\
\\
{{ffi
ffi*
U
!r-'ry-m
a
rTl--
\--z
-
T]
Fig. 26
a
SL0T
Fig.27
For
I
Remove the air filter cover by
with
I
Remove the air filter
Rinse and let dry completely.
r
Reinstall
I
Replace the air filter
bottom of the cover into the
push
NOTE: For best
FUEL CAP
A wnnuruc'
A leaking fuel
immediately.
The fuel cap contains
valve. A clogged fuel filter will
mance.
ened, check valve may
fuel cao if reouired.
SPARK PLUG REPLACEMENT
This engine uses
plug
spark
placement
STORING THE PRODUCT
I
Clean allforeign materialfrom the
indoors
to
children. Keep away from corrosive agents such
garden
r
Abide byall ISO
and handling of
When
storing 1 month
I
Drain
gasoline.
AND
CLEANING AIR FIITER
- 30.
and long life, keep air filter
pushing
your
thumb while
the air filter.
the cover up until it latches
cap is a fire hazard and must be replaced
performance
lf
with .025 in.
and replace annually.
in a dry, well-ventilated
chemicals
all fuel from tank into a container approved for
Run
gently pulling
and clean it in warm soapy water.
cover by inserting the tabs on the
performance,
a Champion RCJ-6Y or NGK BPMRTA
and
gasoline.
engine until it stops.
replace annually.
a non-serviceable filter and a check
improves when
be faulty or filter
electrode
and de-icing salts.
local
regulationsforthesafe storage
or longer:
down on the latch
on
slots on the air filter base;
securely in
poor
cause
the fuel cap is loos-
clogged.
gap.
Use an exact re-
product.
that is inaccessible
area
the
cover.
engine
Store
clean.
place.
perfor-
Replace
idle
unit
as
AIR FILTER C(IVER
AIR FILTER
C()VER
OPEN
Fig.
29
AIR FILTER
AIR FITTER
COVER
21
THESE
IF
PROBLEM
will
Engine
does
Engine
and
speed
SMOKE
starts,
Engine
celerates
will
String
start
excesslve
and
runs,
not
will
DO
idle
SOLUTIONS
not
not reach
emits
but
not advance
NOT
full
ac-
THE
SOLVE
POSSIBLE
No fuel.
2.
is flooded
Engine
3.
Incorrect
1.
filter
2. Air
arrestor
Spark
3.
4. Spark
speed
1. ldle
needs
String
Not enough
String
3.
4.
Sking
Engine
5.
plug
adjustment.
is welded
is worn
is
PROBLEM
CAUSE
mixture.
oil/fuel
dirty.
is
screen
fouled.
screw
string
too shoft.
tangled
is too
speed
CONTACT
is dirty
carburetor
on
itself.
to
on spool.
spool.
on
slow.
AUTHORIZED
YOUR
SOLUTION
1. Check
spark
the
cylinder.
plug
spark
a
wiih
primer
Push
2.
not
does
blocked.
fills,
bulb
item
next
3. Setthe
the trigger
engine
NOTE:
this may
Figure
fresh
1. Use
(50:1).
2. Clean
Filter
Air
3. Contact
4. Clean
gap.
Referto
in this
idle speed
Turn
1.
speed.
1. Lubricate
Install
2,
earlier
strings
Pull
3.
releasing
and
Remove
4.
String
Advance
5.
SERVICE
Remove
spark.
plug
cap
rope
the
Pull
lf there
tip.
sparK
new
start
starts
Depending
23.
airfilter.
or
manual.
more
Plug.
until
bulb
primary fuel
fill,
Contact
may
engine
leverto
pull
and
runs.
and
on
numerous
require
and
fuel
Referto
in
earlier
a servicing
spark
replace
Spark
screw
Figure
See
with silicone
string
string.
manual.
this
in
while
sPool
from
string
Replacement
at full
string
DEALER'
plug.
spark
spark
lay
and
watch
and
spark,
is no
is full
bulb
delivery
dealer'
service
a
flooded,
be
the START
the
the
this
31.
Referto String
alternately
position'
repeatedly
rope
the severity
pulls
correct
Replacing
manual.
dealer.
plug. Reset
Replacement
Plug
clockwise
spray
pressing
retainer.
and
spool
in this
earlier
throttle.
Reattac
plug
on
spark
for
repeat
lf
fuel'
of
system
pri
lf
proceed
until
the
of
rope'
the
of
oil
2-cycle
and
spark
to increase
down
Refer
rewind.
manual.
IF THESE SOLUTIONS
PROBLEM
Soool retainer
wraps around
tr
Grass
driveshaft
string
housing and
head
THIS PRODUCTWAS
Congratulations!
original emission level,
Emissions Parts Inspect Before Clean
CATALYT|C MUFFLER ASSEMBLY......
AIR FILTER ASSY
includes:
Filter ..................
SPARK SCREEN
CARBURETOR
includes:
Heat Dam
Gaskets
FUEL TANK ASSY
includes:
Fuel Lines........................ X
Fuel Cao.......................... X
Fuel Filter
IGNITION ASSY
includes:
P1u9.........
Spark
ALL EMISSIONS-RELATED
THE PARTS FIRST SCHEDULED
DO NOT
hard to turn
1. Screw threads are
1. Cutting
2. Operating
THE PROBLEM CONTACT
SOLVE
POSSIBLE CAUSE
damaged.
grass
tall
tevet.
throttle.
trimmer at
MANUFACTURED WITH A CATALYST
You have made an
please
EMISSIONS MAINTENANCE SCHEDULE
Each
ASSY
investment toward
to the maintenance section below.
refer
Use
PARTS ARE WARRANTED
REPLACEMENT
5 Hours
....................
YOUR AUTHORIZED SERVICE
SOLUTION
dirty or
ground
at
protecting
Every Replace
X............................. X
.........................
FOR TWO
WHICHEVER
1. Clean
1.
2. Operate trimmer at full throttle.
part
the environment.
AND WARRANTED PARTS LIST
Every 25 Hours 25 Hours 50
or Yeafly or
.........................".......X
X
YEARS OR
COMES
DEALER.
threads
improvement, replace the spool retainer.
grass
tall
Cut
wrapping.
lubricate with
and
from the top down to
grease
prevent
MUFFLER
In order to maintain this
Clean Every Replace Every
............................ X
FOR THE PERIOD OF TIME PRIOR TO
FIRST.
product's
Hours
- if no
For any
produci
Your
CALL US
questions
about operating or maintaining
call the Ryobio Help Line!
has been fully tested
your
FIRST
prior
to
complete satisfaction.
shipment
product,
your
to ensure
LIMITED
Techtronic
original
product
and
North
free
WARRANW
Industries
retail
is free
to repair
agrees
America,
charge
of
purchaser that
from
Inc.'s,
within
purchase.
years
l
Two
household
r
90
commercial
This
only
purchase.
Any
Techtronic
of
material
in
without
center
Ryobi
The
to an
if the
use;
if
days,
warranty
commences
and
part
this
of
Industries
or
charge
RYOBIo
for
Service
product,
including
authorized
used
rental.
or
extends
product
workmanship
parts
for
Center).
Ryobi
period. The expense
warranty
for
center
back
by
responsibility
required
wananty
contractofsale
of
any
by
This
of
product
any other
This
subjectto
has
instructions
warranty
is the
that
extend
use
with
its operation,
warranty
owner
to the
the owner.
Techtronic
in respect
or replacements
repairs
be cause
shall
ofany
purchase
will be
warranty
claim.
an authorized
is limited
wananty
original
purchase for any
retail
is used
that
income-producing
does
warranty
misuse,
operated
been
has been
of
the
as
does
of
result
repairs
to
parts
or
RYOBIo
does
specified
not apply
improper
altered
accessories
performance,
not cover:
service
made
brand
STATEMENT
America,
North
this RYOBIo brand
material and
in
defect
replace,
or
discretion,
time
these
product
is used for
for any
to the
on the
in the
found
America,
Nodh
will
labor
and
outdoor
brand
any defective
service
of delivering
and
work
repair
after
Industries
to claims
cancellation
for
brand outdoor
RYOBIo
by the
required
warranty
All
dealer.
ninety
to
rental or
for
purpose.
not cover
negligence,
neglect,
way contrary
in any
in this operator's
to any
maintenance
modified.
or
necessary
which
outdoor
or
warrants
Inc.,
workmanship
at Techtronic
any defective
periods
from
personal,
purpose, such
other
retail
original
the original
of
date
reasonable
to be defective
Inc.
repaired
be
an authorized
by
products
part.
must
the
within
center
producttothe service
the
the expense
replacement
or
and
North
limited
is
no
of
America,
to
claim
rescission
or
product. Proof
to substantiate
dealer
days
brand
RYOBIo
be
from
work must
(90)
commercial
product that
any
or accident,
to the
to the
damage
to any
or
wananty
The
by normal
wearor
are either
product
or adversely
durability.
In
the
to
outdoor
Industries
product
of
the date
or
family
as
purchaser
retail
judgment
replaced
or
service
(Authorized
returned
be
warranty
it
returning
paid
will be
Inc.'s,
the
making
of breach
of
ofthe
performed
the date
outdoor
purposes, or
has been
orthat
operating
This
manual.
product
that
product
not
does
bythe
incompatible
affect
this
addition,
Plugs,
Tune-ups
A.
Adjustments,
Wear
B.
Lines,
Belts,
Blower
and
Techtronic
right
oiidoor
any
ALL IMPLIED
TO
ANY SUCH
MERCHANTABILITY
PURPOSE,
THEIR
APPROPRIATE
DAY
NORTH
WARRANTY
THE REPAIR
AND
INC.,
TO
SOME
LONG
LIMITATION
INDUSTRIES
RESPONSIBILITY
OR OTHER
TO,
AUTHORIZED
OF DELIVERING
TRAVEL
RENTAL
WARRANTY
LOSS
OF
LOSS
DO
INCIDENTAL
ABOVE
- Spark
lgnition,
Bump
-
items
Reels,
Inner
FeltWashers,
Tines,
Blower
Fans,
Guide
StraPs,
Industries
improve
to change
or
productwithout
previously
product
WARRANTIES
THE STATED
WARRANTY
IMPLIED
OTHERWISE,
OR
ENTIRETY
TWO-YEAR,
WARRANTY
AMERICA,
IS STRICTLY
REPLACEMENT
OR
TECHTRONIC
NOT
DOES
STATES
IMPLIED
AN
FOR
DO
ASSUME
MAY
NORTH
DAMAGES
EXPENSE
OF
RYOBI
IT
TELEPHONE
TIME,
LIKE
A
OF
SERVICE
DAMAGE
OR
REVENUE,
OF
NOT
LOSS
OR
TIME,
ALLOW
CONSEQUENTIAL
OR
LIMITATION
Starter
and
Bars,
North
assuming
manufactured.
FITNESS
AFTER
PERIOD.
INC.'S,
INDUSTRIES
ASSUME
THEM
NOT
WARRANTY
NOT
AMERICA,
FOR
RETURNING
SERVICE
BACKTO
IS
TO
INCONVENIENCE.
THE
OR
TO YOU.
This
also
have
other
rights
whlch
you
gives
warranty
Thiswarrantyappliesto
manufactured
Inc.,
locate
To
byorforTechtronic
in
sold
and
your
nearest
the United
dial 1 -800-860-4050.
Carburetor,
Carburetor
Filters
Knobs,
the
Pulleys,
Pins,
Hitch
Vacuum
Chains
Saw
America,
design
any
LIMITED
ARE
PERIOD.
Starter
Mulching
Tubes,
Inc
any
of
obligation
ACCORDINGLY
Spools,
Outer
WARRANTIES
A
FOR
DISCLAIMED
ARE
EXPIRATION
THE
ONE-YEAR,
TECHTRONIC
OBLIGATION
EXCLUSIVELY
AND
DEFECTIVE
OF
NORTH
AUTHORIZE
OR
OTHER
ANY
LIMITATIONS
ALLOW
LASTS,
TO YOU.
APPLY
INC.,
INCIDENTAL,
INCLUDING,
CONSEQUENTIAL,
BUT
PRODUCT
THE
CENTER
THE OWNER,
TELEGRAM
OR
PRODUCT
BEING
PERSONAL
OF
EXCLUSION
DURING
PERFOBMED'
PROPERTY
THE PRODUCI
OF
USE
OR
DAMAGES'
EXCLUSION
specific
MAY NOT
legal rights,
vary from state
RYOBIo brand
all
lndustries
and Canada.
States
Authorized
Ryobi Service
Cutting
Drive
Ropes,
BIades,
Bag
Vacuum
the
reserves
,
brand
RYOBIo
to modify
IN DURATION
INCLUDING
PARTICULAR
IN
THE
OF
NINETY-
OR
INDUSTRIES
THIS
UNDER
LIM
ITED
TO
PARTS
AMERICA,
ANYONE
OBLIGATION.
HOW
ON
ABOVE
THE
SO
TECHTRONIC
ASSUMES
NOT
NO
LIMITED
TO AN
EXPENSE
AND
MECHANIC'S
CHARGES,
TIME
THE
TRAVEL,
LOSS
STATES
SOME
LIMITATION
SO
OF
THE
APPLY
you
may
and
to state.
products
outdoor
America,
North
Center'
THE FOLLOWING
REQUIRED
TECHTRONIC
AND
CALIFORNIA EMISSION CONTROL
YOUR WARRANW
The
U.S. Environmental Protection Agency
(CARB),
and Techtronic Industries
Emissions Control
road
engine. In California, new equipment that
designed, built, and equipped to meet the
other states, new 2000
built,
and equipped at the tjme of sale to meet
non-road
engines. The non-road
workmanship which cause it to fail
years
two
of engine
Industries
North America, Inc., must wafrant
non-road
or small off-road engine for the
has been no abuse, neglect,
off-road engine.
Youremission control system
system, the ignition
connectors,
and
connectors, and other emission-related
Where a warantable
your
repair
non-road
parts,
sis,
and labor
products.
outdoor
MANUFACTURER'S
product's
This
sion-related
Techtronic
Industries Nolrh America,
OWNER'S WARRANTY RESPONSIBILITIES
(a)
As the non-road
performanco
the
Techtronic
Industries North America, Inc-,
ceipts
covering maintenance on
Techtronic
lndustries North America,
lack of receipts or for
maintenance. Any replacemont
and durability may
not reduce the
(b)
As the non-road
that Techtronic Industries
your
non-road
impfoper
maintenance, or unapproved modifications.
(c)
You are responsible
authorized seruice
be completed
you
lf
have
any
should
contact a Techtronic Industfies North America, Inc., Customer Representa-
tive
1-800-860-4050.
at
DEFECT WARRANW
(a)
The wafianty
purchase[
an ultimate
(b)
General Emissions Waranty
Inc., warants to the
non-road
or small off-road engine is designed,
to
conform with all applicable
Board
orthe United
defects in materials
applicable regulations
off-road
engine is
(c)
The warranty
part
warranted
Maintenance
years.
lfany such
fails during the
RYOBI@ Authorized
under warranty will
the effect of "repair
ranty coverage.
maintenance in the Emissions
waranted for the
part.
that
Any
remainder
of the
repaired or replaced
that
reolacement ooint is reached.
CALIFORNIA AIR
TO MEET THE
INDUSTRIES NORTH
RIGHTS AND
System Warranty on
use from the date of sale to the
system, catalytic converters, fuel tanks,
and other associated components. Also included
condition exists, Techtronic Industries
or small off-road
perfomed
enissions control system
part
your
on
of the required maintenance
be used in non-waranty maintenance
waranty obligations of Techtronic lndustries
or small off-road engine owner,
or small off-road engine or a
dealer as soon as a
in a reasonable amo!nt of time, not to
questions
period
ultimate
States Environmental Protection Agency; and that it is
and
purchased
on emissions-related
that is not scheduled
Schedule
part
{including
period
Seruice
be
or replace as necessary" would not
Any warranted
period
part
such
period
at any HYOBI@ Authorized
Nodh America, Inc., are
and later model
engine must be free from defects in materials
to conform with
or improper maintenance
may include
at an authorized seruice center for RYOBIo
WARRANW
engine is
defociive, the
Inc., free of charge.
or small off-road engine
your
your
failure
to ensure the
part
or service that is equivalent in
North America, lnc., may deny
presenting your
for
your
regarding
COVERAGE REQUIREMENTS:
begins on the date the engine or equipment is delivered
Covefage. Techtronic Industries North Amefica,
purchaser
regulations adopted by the California
workmanshipwhich
period
lor a
oftwo
by the initial
and Warranty Paris List set forth below is warfanted for two
of wairanty coverage, it
wa(anted
for replacement as required in the Emissions
pad
any
no
Centef at
for the remaining warranty
part
that
lvaintenance Schedule
prior
of time
repaired
or replaced under watranty is waranted for the
priof
to the first scheduled replacement
RESOURCES BOARD
REQUIREMENTS,
CARB
AMERICA, INC., LIMITED WARRANTY
SYSTEMS NON-ROAD AND
OBLIGATIONS
(EPA),
theCaliforniaAir Resources Board
your
states stringent anti-smog standafds.
year
perjod
parts
engine at no cost to
COVERAGE:
is waranted for two
non-road or small off-road
lnc., cannot deny warianty
problem
waranty rights and responsibilities,
and each
years
purchase[
parts
that is schedlled
charge. Any such
is scheduled for replacement as required
to the first
year
2007 model
uses small off-road engines must be
non-road
engines must be designed,
the U.S. EPA regulations fof small
U.S. EPA standards
ultimate
the emission control sysiem on
oftime listed above
your
of
such as the carburetor
assemblios.
recommends that
part
non-road or small off-road
causethe enginetofailto conform with
North America, Inc., will
part
will be repaifed or replaced by
you
ownel
your
listed in
performance
you
should be
you
has failed due to
exists. The watranty repairs
exceed
subsequent
built, and equipped atthe
from
the date the non-road
wjll
be interpreted as
only for regular
will be repaired or replaced at any
part
reduce the
and
scheduled replacement
Seruice Center for no charge until
pleased
non-road
purchaser
valves, filters, clamps,
may be hoses, belts
you,
are responsible fof
or
North America, Inc.
wa(anty
30
purchaser
repaired or replaced
period.
Waranty Parts List
to
explain the
or small ofi-
and
for the
first
Techtronic
your
provided
there
non-road
or small
injection
orfuel
including diagno-
bfand
years.
lf any emis-
operator's manual.
retajn all re-
Vou
engine, but
for
solely
of all scheduled
repatrs,
days.
pojnt,
the
performance
and shall
aware, however,
coverage if
abuse, neglect,
engine to an
should
you
your
that
time of
sale
Air Resources
free
from
or small
follows: Any
inspection)
A statement
period
of war
point
and will be
(CARB)
STATEMENT ONLY APPLIES
STATEMENT FOR
SMALL OFF.ROAD ENGINES
Techtronic Industries North America,
authorized RYOBI@ Authorized
that may be franchised to
at a RYOBI@ Authorized Seryice Center
In
work detefmines that a warranted
replacement
equivalent
on emission-related
part
is still under warranty. Techtronic
to other engine
damages
still under warranty.
Add-on
modified
or
may
grounds
will not be liable to waffant failures of waranted
exemoted
The California Air Resources Board's Emission
the emission-related waranted
butthe EPAconsidersemission-related waranted
below)
describe its warranty
California Air Resources Board.
EMISSIONS PARTS LIST
Emissions
applies to any of the following components that
(1)
Fuel lvietering
(i)
(ii)
(iii)
(iv)
(2)
Air Induction System
(i)
llil lntake manifold.
fiiil Air filter
(3)
lgnition
(i)
.
(ii)
{iii)
(4)
Exhaust Gas Recirculation
(i)
(ii)
(5)
Air lniection
(i)
(ii)
{iii)
to
(6)
Catalyst or Thermal
(i)
(ii)
(iii)
(7)
ParticulateControls
(i)
(8)
Miscellaneous ltems Used in Above
(i)
(ii)
(iii)
Techtronic
instructions for its maintenance
The Emissions
indicates
to
meet Federal
A=300 hours.
is
for
The
not be used.
for disallowing awaranty claim. Techtronic Industri€s
or modified
add-on
Techtronic Inoustries North America. Inc., will
parts
varyfrom
System
Carburetor
system).
Airlfuel ratio feedback and control
Cold start enrichment system.
Fuel Tank.
Controlled hot air intake system.
System
Spark Plugs.
Magneto or electronic ignition
Spark advance/retard system.
EGR valve body and
EGR rate feedback and control system.
System
Airpumporpulsevalve.
Valves afiecting distribution of flow.
Distribution