Ryobi RLH1100A MKIII User manual

OPERATOR'S
MANUAL
FOR INFORMATION ABOUT
OPTIONAL ATTACHhlENTS
FOR THERYOBI LAWN
HORNET MKIII, REFER TO
PAGE
15. THESE
ATTACHMENTS
hllAI(E UP
THECOMPLETEADD-ON
GARDEN SYSTEM.
IMPORTANT MANUAL
DO NOT THROW AWAY

l
INTRODUCTION
1 CONTENTS
........................................................
THANK YOU I. Safety Warnings 3
Thank you for purchasingthis quality product This modern
powertool hasbeendesignedto provide you with many hours
of useful service. You will find it to bea great labor-saving
device.
This operator's manual providesyou with easy-to-understand
operating instructions. Readthe entire manualandfollow all
of the instructionsto keep your newpower tool intop
operatingcondition.
PRODUCT REFERENCES,
ILLUSTRATIONS AND SPECIFICATIONS
All information, illustrations and specifications inthis manual
are basedonthe latest productinformationavailable at the
time of printing. We reserve the right to make changes at any
time without notice.
Copyright
O 1994 Ryobi Outdoor Products, Inc. All Rights
Reserved.
Bump KnobTMand Split Boomeare trademarks of Ryobi
Outdoor Products. Inc.
MAKE SURETHIS MANUAL IS
CAREFULLY READ AND UNDERSTOOD
BEFORESTARTING OR OPERATING
THIS EQUIPMENT.
II.
........................................... Assembly lnslructions 4-5
......................................... A. Installingthe D-Handle 4
B. Installing the String Guard
.................................... 4
.......................................... C. Split BoomeAssembly 5
............................................ Ill. Oil and Fuel Information 6
................................... IV. StartincJStopping Instructions 7
............................................... V. Operating Instructions 8
A. Adjusting the Trimming Line Length ..................... 8
.............................................. B. Decorative Trimming 8
................................................................ C. Edging 8
................. VI. Maintenance and Repair Instructions 9-13
............................................... A. Line Installation 9-1 0
B. Air Filter Maintenance ......................................... 11
C. Carburetor Adjustments
..................................... 12
D. Cleaning and Storage ......................................... 13
VII. Troubleshooting Chart
............................................ 14
.......................................................... VIII. Specifications 14
..............................................
IX. Optional Attachments 15
..................................................................
X. Warranty 16
l
SAFETY WARNINGS
THE PURPOSEOF SAFETY SYMBOLS IS TO AlTRACT
YOUR AlTENllON TO POSSIBLEDANGERS. THE SAFETY
SYMBOLS. AND THE EXPLANATIONSWITH THEM,
DESERVEYOUR CAREFUL AlTENTION AND
UNDERSTANDING. THE SAFETYWARNINGS
DO NOT BY
THEMSELVES ELIMINATE ANY DANGER. THE
INSTRUCTIONSOR WARNINGSTHEY GIVE ARE NOT
SUBSTITUTES FOR PROPER ACCIDENT PREVENTION
MEASURES.
SYMBOL MEANING
A
WARNING Failureto obey a safety
warning can resultininjury
to yourself
and others.
NOTE Advises
you of information
orinstructions vital to the
operationor ma~ntenance
of the equipment.

SAFETY WARNINGS
Always holdthe trimmer with both hands when
operating. Keep a firmgrip on boththe front and rear
handles or grips.
FUELING AND PREGOPERATIONAL
Gasoline is extremely flammable and itsvapors can
explode
if ignited. Always stop the engine and allow it
to cool before filling the fuel tank. Do not smoke while
filling the fuel tank. Keepsparks and open flames away
fromthe area.
Store gasoline andfuel only incontainers designed
andapprovedfor the storage of such materials.
Pressure can buildup inthe fuel tank Loosenthefuel
tank cap slowly to relieve any pressure inthe tank
Add fuel in a clean, well-ventilated area. Wipe up any
spilled fuel immediately. Iffuel has beenspilled, allow
it
to dry completely before startingthe engine.
Move the trimmer at least 3 m (10ft) from the fueling
point before startingthe engine.
Thoroughly inspect the trimmer for loose or damaged
parts before each use. Do not use untiladjustments or
repairs are made.
Avoid accidentalstarting. Be inthe starting position
whenever pullingthe starting rope.
Keep all bystanders, especially children, and pets at
least 10m
(33 ft) away fromthe area.
Carefully inspect the areas to becut. Remove all
debris that could become entangled in the string. Also
removeany objects that could bethrown during
cutting.
Before starting. make sure the string head is not in
contact with anything.
DURING OPERATION
Wear safety glasses or goggles at all times when
operating this trimmer.
Dress properly. Do not operate this trimmer when
barefoot or wearing open sandals. Always wear sturdy.
rubber-soledfootwear. The use of gloves, earlhearing
protection and long pants are recommended.
Keep hands, face andfeet away from all moving parts.
Do not attempt to touch or stop the string while
it is
rotating.
Do not touch the muffler or cylinder. These parts get
extremely hot from operation and remain hot for a short
time after the equipment isturned off.
3
Operate this trimmer only ina well-ventilated area,
outdoors. Carbon monoxide exhaust fumes can be
lethalin a confined area.
If you strike or become entangled with a foreign object.
stop the engine immediately andcheck for damage.
Repairany damage before further operation
is
attempted. Do not operate the trimmer with loose or
damaged parts.
Do not force the cutting headat a rate faster than ir is
able to cut effectively.
Usethe right tool. Do not use this trimmer for any job
except that for which it is intended.
Do not overreach. Keep proper footing and balance at
all times.
Always remain alert. To prevent injury to yourself and
others, do not operate this trimmer
if you are fatigued.
-
Do not operate the engine faster than the speed
necessary to cut, trim or edge. Do not runthe engine at
high speed when not cutting.
Do not extend the trimming line beyond the length
specified inthis manual.
Always stop the engine when cutting is delayed or
when walking from one cutting location to another.
Use only genuine replacement parts when servicing
this trimmer. These parts are available fromyour
authorized service dealer. The use of non-standard
parts, or other accessories or attachments not
designed for this trimmer, could result inserious injury
to the user or damage to the trimmer.
AFTER OPERATION
Storethe trimmer in an appropriate area to prevent
unauthorized use and damage.
Storethe trimmer indoors in a dry location, out of the
reach of children.

L
I
ASSEMBLY INSTRUCTIONS
2. Pushthe string guard down to the top of the string
head assembly and then rotatethe stringguardto the
properposition(Fig.
3). The stringguard is inthe
correctpositionwhen the stringguard pointstoward
INSTALLING THED-HANDLE
the engine and the screw holes inthe string guardline
up withthe screw holesinthe top of the string head
assembly.
1
Pushthe D-handle down over the boom(Fig. 1) .
2. Installthe bott, washer and wing nut and tighten.
Fig. 3
Fig. 1
3. Installthe screws with a Phillips screwdriver (Fig. 4).
INSTALLINGTHE STRING GUARD
Neveroperatethetrimmerwithoutthestringguard
m place.
1. Placethe stringguard onto the boom abovethe clamp
assembly (Fig.
2).
Fig. 4
NOTE: The guardmust be installedbefore
operating the trimmer.
Fig. 2

-
ASSEMBLY INSTRUCTIONS (Continued)
OPERATING THESPLITBOOW
COUPLER
Model RLH1100A isequipped with a Split Boom' coupler,
which enablesoptional attachments to be installed onthis
unit.
The optional attachments are:
Sweeperh3lower ............................................... RLSl1OOA
Vacuum
.............................................................. RLVl1OOA
Edger
.................................................................. RLEl1OOA
Cuttivator
....................................................... RGCl1OOA
Removing the Lower (Attachment) Boom
m NOTE: To make removingthe boomeasier,
place the unit on the ground or on a table.
1. Loosenthe wing screws (Fig. 7).
2. Push the release button (Fig. 5).
3. Pullthe lower boomstraight out of the coupler (Fig. 6).
NOTE: The release button must be lined up with
the sight hole when pullingthe boomout
of the coupler. If it is not, you will damage
the coupler andthe boom.
UpperBoom Release
+Q Button
Fig. 6
Fig. 7
Wing Screw
Back Side of Coupler
Fig. 5
Installing the Lower (Attachment) Boom
1. Loosen the wing screws. This will allow the lower
boomto be inserted into the coupler (Fig.
6).
2. Remove the protective cover or hanger from the lower
(attachment) boom. Push the lower (attachment) boom
intothe coupler (Fig. 7).
3. Locate and lockthe release bunon into the hole in
coupler (Fig. 5).
4. Check the sight hole to make sure both ends of the
boom are together (Fig. 7).Tighten the wing screws
before usingthe unit.

OIL AND FUEL INFORMATION
NOTE: BESURETO READ THESE
INSTRUCTIONSCAREFULLY BEFORE
AITEMPTING TO STARTOROPERATE
THIS UNIT. Usingoldor improper oil or
fuel. or improperlymaingthe oil and fuel
cancause engine damage. This type of
damage willvoidthe engine warranty.
I
A WARNING
Gasoline is extremelyflammable and its
vapors canexplode
if they are ignited. Always
stop the engine and allow
it to coolbeforefilling
the fuel tank Do not smoke while fillingthe
tank Keepsparks and openflames away from
the area.
RECOMMENDED OIL TYPE
Use 2cycle engineoil specially formulatedfor use in
2cycle. air-cooledengines.
RECOMMENDED FUELTYPE
Useclean, fresh, unleadedgasoline (petrol).
OIL AND FUEL MIXING INSTRUCTIONS
Neverattempt to mbc the gasoline and
lubricatingoil inthe fueltank of the unit.
Thoroughlymix 200 mlof 2cycle oil with
5 liters of
unleadedgasoline (petrol)
(25:l). Donot mix directly inthe
enginefuel tank.
1-1 NOTE: Forproper engine operationand
maximumreliabilitv.Dav strict attentionto
-.. .
these oil andfuel mixinginstructions.
Usingimproperlymixedfuel will
damagethe engine.
Removefuel cap slowly to avoidinjuryfrom fuel
spray.

STARTING/STOPPING INSTRUCTIONS
1.
MIX OIL WlTH FUEL AND FILL FUELTANK
WlTH FUEUOIL MlXTLlRE
- per instructions on
page
6.
2.
Put the IGNITIONSWITCH INTHE "ON"
POSITION. See Fig. 8 for the location of the
ONIOFF SWITCH.
3.
FULLY PRESS AND RELEASETHE PRIMER
BLlLB 5 TO 7 TIMES. See Fig. 9 for the primer
bulblocation.
4.
PLACETHE CHOKE LEVER INTHE FULL
"CHOKE" POSITION(Fig. 10).
5. WlTH THE UNIT ON THE GROUND, SQUEEZE
THETHROTLETRIGGER FULLY AND PULL
THE STARTER ROPEBRISKLY (Fig. 11) until
the engine sounds like
it wants to run. (Normally
2 to 5 pulls).
6. PLACETHE CHOKE LEVER INTHE
"PARTIAL" CHOKE POSITION(Fig. 10). PULL
THE STARTER ROPE BRISKLY
1 TO 3 TIMES
TO START MEENGINE(Fig. 11).
7.
If the engine does not start, repeat steps 4
through 6.
8. After the engine warms upfor 5 to 10seconds,
PLACETHE CHOKE LEVER INTHE "RUN"
POSITION (Fig. 10).
9. To stop the engine,put the IGNITIONSWITCH
INTHE "OFF" POSI-TION(Fig.
8).
Fig. 8 Fig. 9
Choke Choke Lever Run
Position Position
Partial
-
- Choke -
Position-
1
Fig. 10
Throttle
Trigger
Fig. 11

OPERATING INSTRUCTIONS
2
DECORATIVETRIMMING
Thistrimmer has been designed and built to withstand Decorativetrimming is accomplishedby removingall
normal use. It will provide many hours of service provided vegetation around trees, posts, fences, etc. Use a
the operating instructions are closely adheredto. 30degree angle when trimming with this method(fig.
13).
Always wear eye, hearing, leg, foot and body
protectionto reducethe riskof injurywhen
operatingthis trimmer.
ADJUSTING THETRIMMING LINE
LENGTH
Your trimmer is equippedwith a BumpHeadthat allows the
operatorto releasemoretrimming line without stoppingthe
motor. To releaseadditional line. lightlytap the trimming
headonthe ground (Fig. 12)while operatingthe trimmer at
high speed.
Fig. 12
Each time the headis bumped, about 25.4 mm (1 in) of
trimming line is released. A blade inthe guard will cut the
lineto the proper length if excess line is released.
For best results, tapthe headon bare groundor hard soil. If
line releaseis attempted intall grass, the engine may stall.
NOTE: Always keepthe trimming linefully
extended. Linereleasebecomes more
difficuttas the cutting line becomes
shorter.
Fig.
13
EDGING
The rotating Split Boomemakes it easy to use the trimmer
for edging.
1. Loosenthe wing screws on the Split Boomecoupler,
pressthe release button, and rotate the lower boomto
the desired position. Tightenthe wing screws on the
coupler before proceedingto edge (See Fig.
5 on
page 5).
2. When edging, let the tip of the trimming line do the
work. Cut with the trimmer inthe position shown
(Fig. 14).
Fig.
14

MAINTENANCEAND REPAIR
LINEINSTALLATION
Removing the Existing Reel
1. Holdthe outer spool with one hand and unscrew the
Bump Knob counterclockwise (Fig. 15). Inspect the
captured bott inside the Bump Knob to make sure
it
moves freely. Replace the Bump Knob if it is damaged.
Fig. 15
2. Removethe inner reel(Fig. 16).
Fig. 16
4. Check the indexing teeth onthe inner reel and outer
spool for wear (Fig. 18). If necessary, debunor replace
them.
I
Fig. 18
Rewinding the Existing Reel
1. Take approximately 9.1 m (30 ft) of newtrimming line
and loop it into
2 equal lengths. Insert each end of the
line through one of the two holes inthe inner reel
(Fig. 19).Pullthe line so the loop is as small as
possible.
Fig. 19
2. Wind the line, in even and tight layers, onto the reel
(Fig.
20). Wind the line inthe direction indicated onthe
inner reel. Do not overlap the two ends of the line.
3. Use a clean cloth to cleanthe inner surface of the outer
PI NOTE: Failureto wind the line inthe direction
spool (Fig. 17). indicated will cause the Bump Headto
operate incorrectly.
] NOTE: Always cleanthe inner reel, outer spool,
andthe shaft before reassemblingthe
BumpHead.
Fig. 20
Fig. 17

MAINTENANCE AND REPAIR
INSTRUCTIONS (Continued)
3. Pushthe ends of the line into the two slots (Fig. 21).
Fig. 21
Reinstalling the Reel
1. Insert the ends of the line through the eyelets inthe
outer spool (Fig. 22). Grasp the ends and pull firmly to
release the line from the holding slots inthe spool.
Fig. 22
2. Hold the inner reel inplace while you turn the Bump
Knobclockwise (See Fig. 15). Line installation is now
complete.
Installing a Prewound Reel
1. Followthe instructions inRemovingthe Existing
Reel.
2. Followthe instructions inReinstallingthe Reel.