Sears Trimmer 25 HHT User Guide

R
Instruction Manual  
Manual de Instrucciones  
Manuel d’Instructions  
25 HHT  
For Occasional Use Only  
WARNING:  
Read and follow all Safety Rules and Operating Instructions before  
using this product. Failure to do so can result in serious injury.  
ADVERTENCIA:  
Lea el manual de instrucciones y siga todas las advertencias e  
instrucciones de seguridad. El no hacerlo puede resultar en le-  
siones graves.  
AVERTISSEMENT:  
Lire le manuel d’instructions et bien respecter tous les avertisse-  
ments et toutes les instructions de sécurité. Tout défaut de le  
faire pourrait entraîner des blessures graves.  
Electrolux Home Products, Inc.  
250 Bobby Jones Expressway  
Augusta, GA 30907  
Copyright E2003 Electrolux Home Products, Inc.  
530163900  
12/1/03  
 
WARNING:  
Blades can throw objects violently.  
D You can be blinded or injured.  
D Wear safety glasses.  
Safety  
Glasses  
Boots  
WARNING:  
Hazard zone for thrown objects  
D Blades can throw objects violently.  
D Others can be blinded or injured.  
D Keep people and animals 30 feet  
(10 meters) away.  
30 ft.  
(10 m)  
Blades move Allow blades to stop  
momentarily before removing  
he them from the cut.  
is  
WARNING:  
Blades move momentarily after the  
trigger is released.  
D The blades can seriously cut you or  
others.  
d.  
D Allow blades to stop before  
removing them from the cut.  
D Allow engine to cool, empty the fuel tank,  
and secure the unit before storing or trans-  
porting it in a vehicle.  
D Do not store the unit or fuel in a closed area  
where fuel vapors can reach sparks or an  
open flame from hot water heaters, electric  
motors or switches, furnaces, etc.  
SPECIAL NOTICE: This unit is equipped  
with a temperature limiting muffler and spark  
arresting screen which meets the require-  
ments of California Codes 4442and 4443. All  
U.S. forest land and the states of California,  
Idaho, Maine, Minnesota, New Jersey, Ore-  
gon, and Washington require by law that  
many internal combustion engines be  
equippedwithaspark arrestingscreen. Ifyou  
operateinalocale wheresuch regulationsex-  
ist, you arelegally responsible formaintaining  
the operatingcondition of theseparts. Failure  
to do so is a violation of the law. For normal  
homeowneruse, themuffler andspark arrest-  
ing screen will not require any service. After  
50 hours of use, we recommend that your  
muffler be serviced or replaced by an autho-  
rized service dealer.  
D Store unit so the cutting blade cannot acci-  
dentally cause injury.  
D Store unit with the blade cover installed.  
D Store in a dry area out of reach of children.  
SAFETY NOTICE: Exposure to vibrations  
through prolonged use of gasoline powered  
hand tools could cause blood vessel or nerve  
damage in the fingers, hands, and joints of  
people prone to circulation disorders or ab-  
normal swelling. Prolonged use in cold  
weatherhas beenlinked toblood vessel dam-  
age in otherwise healthy people. If symptoms  
occur such as numbness, pain, loss of  
strength, change in skin color or texture, or  
loss of feeling in the fingers, hands, or joints,  
discontinue the use of this tool and seek  
medical attention. An anti vibration system  
does not guarantee the avoidance of these  
problems. Users who operatepower tools on  
a continual and regular basis must monitor  
closely their physical condition and the condi-  
tion of this tool.  
ASSEMBLY  
Examine parts for damage. Do not use dam-  
aged parts.  
NOTE: If you need assistance or find parts  
missing or damaged, call 1-800-554-6723.  
It is normal for the fuel filter to rattle in the  
empty fuel tank.  
Finding fuel or oil residue on muffler is normal  
due to carburetor adjustments and testing  
done by the manufacturer.  
ASSEMBLY  
Your hedgetrimmer is fully assembled; noas-  
sembly is required.  
-- 3 --  
 
OPERATION  
KNOW YOUR HEDGE TRIMMER  
READ THIS INSTRUCTION MANUAL AND SAFETY RULES BEFORE OPERATING YOUR  
UNIT. Compare the illustrations with your unit to familiarize yourself with the location of the vari-  
ous controls and adjustments. Save this manual for future reference.  
Throttle  
Lock--out  
Spark Plug  
Throttle Lock  
Primer  
Bulb  
Choke  
Lever  
ON/OFF  
Switch  
Throttle Trigger  
Hand  
Guard  
Muffler  
Fuel Mix  
Fill Cap  
Blade  
Cover  
ON/OFF SWITCH  
PRIMER BULB  
The ON/OFF SWITCH is used to stop the en-  
gine. To stop the engine, move the switch to the  
OFF position.  
ThePRIMER BULBremoves air from thecar-  
buretor and fuel lines and fills them with fuel.  
This allows you to start the engine with fewer  
pulls on the starter rope. Activate the primer  
bulb by pressing it and allowing it to return to  
its original position.  
CHOKE  
The CHOKE helps to supply fuel to the engine  
to aid in cold starting. Activate the choke by  
moving choke lever to the desired position. See  
STARTING YOUR ENGINE for complete start-  
ing information.  
THROTTLE TRIGGER  
The THROTTLE TRIGGER controls engine  
speed. Squeeze the trigger for full speed opera-  
tion; release it for idle speed.  
liters) of unleaded gasoline). DO NOT USE au-  
tomotive oil or boat oil. These oils will cause en-  
gine damage. When mixing fuel, follow instruc-  
tions printed on oil container. Once oil is added  
to gasoline, shake container momentarily to as-  
sure that the fuel is thoroughly mixed. Always  
read and follow the safety rules listed under  
HANDLE FUEL WITH CAUTION.  
WARNING: Muffler is very hot during  
and after use. Do not touch the muffler or al-  
low combustible material such as dry grass or  
fuel to do so.  
BEFORE STARTING ENGINE  
WARNING: Be sure to read the fuel  
information in the safety rules before you be-  
gin. If you do not understandthe safety rules,  
do not attempt to fuel your unit. Call  
1-800-554-6723.  
IMPORTANT  
Experience indicates that alcohol blended fuels  
(called gasohol or using ethanol or methanol)  
can attract moisture which leads to separation  
and formation of acids during storage. Acidic  
gas can damage the fuel system of an engine  
while in storage. To avoid engine problems,  
empty the fuel system before storage for 30  
days or longer. Drain the gas tank, start the en-  
gine and let it run until the fuel lines and carbure-  
tor are empty. Use fresh fuel next season.  
Never use engine or carburetor cleaner prod-  
ucts in the fuel tank or permanent damage  
may occur.  
FUELING ENGINE  
WARNING: Remove fuel cap slowly  
when refueling.  
HELPFUL TIP  
To obtain the correct oil mix  
ratio, pour 3.2 ounces of  
2--cycle synthetic oil into  
one gallon of fresh gas.  
This engine is certified to operate on unleaded  
gasoline. Before operation, gasoline must be  
mixed with a good quality synthetic 2-cycle air-  
cooled engine oil designed to be mixed at a ratio  
of 40:1. Poulan/Weed Eater brand synthetic oil  
is recommended. A 40:1 ratio is obtained by  
mixing 3.2 ounces (95 ml) of oil with 1 gallon (4  
OPERATING INSTRUCTIONS  
It is recommended that the engine not be  
operatedfor longerthan30 secondsatfull  
throttle. Releasing the trigger and allowing  
the engine to briefly return to idle speed (5 --  
10 seconds) will be sufficient.  
-- 4 --  
 
ON/OFF  
Switch  
IMPORTANT POINTS  
S Use the minimum throttle speednecessary  
to effectively cut hedges for optimal hedge  
trimmer performance.  
Throttle Lock  
S Never attempt to use this hedge trimmer to  
cut hedges that have any branches with a  
diameter larger than 5/8" (1.5 cm).  
OPERATING POSITION  
Hearing  
Protection  
tion  
1. Move the ON/OFF switch to the ON posi-  
tion.  
2. Engage the throttle lock as follows:  
D press the throttle lock--out;  
D squeeze and hold throttle trigger;  
D press and hold throttle lock, then  
D release the throttle trigger  
NOTE: Keep the throttle lock engaged until  
the engine starts.  
3. Slowly press the primer bulb 6 times.  
4. Move the chokelever tothe FULLCHOKE  
position.  
STOPPING YOUR ENGINE  
D To stop the engine, move the ON/OFF  
switch to the OFF position.  
Primer Bulb  
Choke  
S If engine does not stop, move choke lever  
to the FULL CHOKE position.  
Lever  
STARTING YOUR ENGINE  
D
D
D
Fuel engine. Move at least 10 feet (3 me-  
ters) away from the fueling site.  
Remove the blade cover from the blade  
before starting the unit.  
Hold the unit on the ground in the starting  
position as shown. Support unit so the  
blade is off of the ground and away from  
trees, bushes, onlookers, etc.  
5. Pull starter rope handle sharply until en-  
gine sounds as if it is trying to run, but do  
not pull rope more than 6 times.  
6. Move the choke lever to the HALF  
CHOKE position.  
7. Pull starter rope sharply until the engine  
runs, but no more than 6 pulls.  
NOTE: If the engine doesn’t start after 6 pulls  
(at the HALF CHOKE position), check to  
make sure the ON/OFF switch is in the ON  
position. Move the choke lever to the FULL  
CHOKE position and press the primer bulb 6  
times; pull the starter rope 2 more times.  
Move the choke lever to the HALF CHOKE  
position and pull the starter rope until the en-  
gine runs, but no more than 6 more pulls. If  
the engine still doesn’t start, it is probably  
HELPFUL TIP  
If your engine still does not  
start after following these  
instructions, please call  
1--800--554--6723.  
flooded. Proceed to STARTING  
FLOODED ENGINE.  
A
8. Once the engine starts, allow the engine to  
run 10 seconds, then move the choke lever  
totheOFF CHOKE position. Allow the unit to  
run for 30 more seconds at the OFF CHOKE  
position before squeezing and releasing the  
throttle trigger to release the throttle lock.  
NOTE: If engine dies with the choke lever in  
the OFF CHOKE position, move the  
choke lever to the HALF CHOKE position  
and pull the rope until the engine runs, but  
no more than 6 pulls.  
STARTING A COLD ENGINE (or a  
warm engine after running out of  
fuel)  
WARNING: The cutting blade will be  
moving once the throttle lock has been set  
and the engine is started. Wear your protec-  
tive equipmentand observe all safety instruc-  
tions.  
-- 5 --  
 
STARTING A WARM ENGINE  
1. Move the ON/OFF switch to the ON posi-  
tion.  
2. Slowly press the primer bulb 6 times.  
3. Move the choke lever to the HALF  
CHOKE position.  
4. Engage the throttle lock as directed in  
STARTING A COLD ENGINE.  
NOTE: Keep the throttle lock engaged until  
the engine starts.  
5. Pull starter rope sharply until engine runs,  
but no more than 5 pulls.  
6. Allow the engine to run 10 seconds, then  
move the choke lever to the OFF CHOKE  
position.  
7. Releasethethrottlelock by squeezingand  
releasing the trigger.  
NOTE: If engine has not started, pull starter  
rope 5 more pulls. If engine still does not  
run, it is probably flooded. Proceed to  
STARTING A FLOODED ENGINE.  
STARTING A FLOODED ENGINE  
Flooded engines can be started by placing  
the ON/OFFswitch in the ONposition andthe  
choke lever in the OFF CHOKE position and  
engaging the throttle lock as directed in the  
STARTING A COLD ENGINE section; then,  
pull the rope to clear the engine of excess  
fuel. Starting could require pulling the starter  
rope many times depending on how badly the  
unit is flooded. If the unit still doesn’t start, refer  
to the TROUBLESHOOTING TABLE or call  
1-800-554-6723.  
SERVICE  
INSPECT AND CLEAN UNIT AND  
WARNING: Ensure ON/OFF switch  
is in the OFF position and disconnect the  
spark plug before performing maintenance  
except for carburetor adjustments.  
LABELS  
S Before and after each use, inspect com-  
plete unit for loose or damaged parts. After  
each use, clean the unit and labels using a  
damp cloth with a mild detergent.  
S Wipe off unit with a clean dry cloth.  
HELPFUL TIP  
CLEAN AIR FILTER  
IMPORTANT: Have all  
repairs other than the rec-  
ommended maintenance  
Air Filter  
Cover  
described in the instruction  
manual performed by an  
authorized service dealer.  
If any dealer other than an authorized  
service dealer performs work on the  
product, Electrolux Home Products,  
Inc., may not pay for repairs under war-  
ranty. Itis yourresponsibility tomaintain  
and perform general maintenance.  
GENERAL RECOMMENDATIONS  
Thewarrantyonthis unit doesnot cover items  
that have been subjected to operator abuse  
or negligence. To receive full value from the  
warranty, the operator must maintain unit as  
instructed in this manual. Various adjust-  
ments will need to be made periodically to  
properly maintain your unit.  
Air Filter  
Screw  
Cleaning the air filter:  
A dirty air filter decreases engine perform-  
ance and increases fuel consumption and  
harmful emissions. Always clean after every  
5 hours of operation.  
CHECK FOR LOOSE  
FASTENERS AND PARTS  
S Spark Plug Boot  
S Air Filter  
S Housing Screws  
1. Clean the cover and the area around it to  
keep debris from falling into thecarburetor  
chamber when the cover is removed.  
2. Remove parts as illustrated.  
NOTE: Donotclean filter in gasoline orother  
flammable solvent. Doing so can create a fire  
hazard or produce harmful evaporativeemis-  
sions.  
CHECK FOR DAMAGED OR  
WORN PARTS  
Contact an authorized service dealer for re-  
placement of damaged or worn parts.  
S ON/OFF Switch -- Ensure ON/OFF switch  
functions properly by moving the switch to the  
OFF position. Make sure engine stops; then  
restart engine and continue.  
3. Wash the filter in soap and water.  
4. Allow filter to dry.  
5. Add a few drops of oil to the filter; squeeze  
filter to distribute oil.  
6. Replace parts.  
INSPECT MUFFLER AND SPARK  
ARRESTING SCREEN  
S Fuel Tank -- Do not use unit if fuel tank shows  
signs of damage or leaks.  
S Gearbox -- Do notuse if the gearboxshows  
signs of damageor leaks. After 50 hours of  
use, we recommend that your gearbox be  
serviced by an authorized service dealer.  
WARNING: The muffler on this prod-  
uct contains chemicals known to the State of  
California to cause cancer.  
-- 6 --  
 
As your unit is used, carbondeposits build up  
on the muffler and spark arresting screen.  
For normal homeowner use, however, the  
muffler and spark arresting screen will not re-  
quire any service. After 50 hours of use, we  
recommend that your muffler be serviced or  
replaced by your authorized service dealer.  
If you requirefurtherassistance or areunsure  
about performing this procedure, contact an  
authorized  
service  
dealer  
or  
call  
1--800--554--6723.  
BLADE ADJUSTMENT  
The clearance between the cutting blades  
must beadjusted periodically to maintainopti-  
mal performance and sharp cutting.  
CARBURETOR ADJUSTMENT  
WARNING: Keep others away when  
making idle speed adjustments. The blade  
will be moving during most of this procedure.  
Wear your protective equipment and observe  
all safety precautions. When making adjust-  
ments, use a screwdriver short enough to  
keep your hands behind the handguard and  
away from the blade. After making adjust-  
ments, the blade mustnot moveat idle speed.  
The carburetor has been carefully set at the  
factory. Adjustments may benecessary if you  
notice any of the following conditions:  
S Engine will not idle when the throttle is re-  
leased.  
Nut  
Blade guide  
Blades  
Flat  
Washer  
Cupped  
Washer  
Bolt  
Blade  
guide  
Nuts  
S The blade moves at idle.  
Keep others away when making idle speed  
adjustments. Make adjustments with the unit  
resting on a level surface free of debris that can  
be caught in the hedge trimmer blade. Serious  
injury to the operator and others can occur if the  
carburetor is not properly adjusted. Keep all  
parts of your body away from the blade and  
muffler.  
Idle Speed Adjustment  
Allow engine to idle. Adjust speed until engine  
runswithoutblademoving(idletoofast) oren-  
gine stalling (idle speed too slow).  
S Turn idle speed screw clockwise to in-  
creaseenginespeedif enginestalls ordies.  
S Turn idle speed screw counterclockwise to  
decrease engine speed if the blade moves  
at idle.  
1. Using a wrench, loosen each nut on the  
top side of the blade guide.  
TOP SIDE OF BLADE  
Nut  
Wrench  
2. Tighten each bolt from underside of blade  
with a wrench.  
WARNING: Recheck the idle speed  
after each adjustment. The blade must not  
move at idle speed to avoid serious injury to  
the operator or others.  
UNDERSIDE OF BLADE  
Idle Speed Screw  
Bolt  
3. Loosen each bolt 1/2 turn.  
UNDERSIDE OF BLADE  
1/2 turn  
Bolt  
4. While holding each bolt in place with a  
wrench, retighten the nuts.  
TOP SIDE  
OF BLADE  
-- 7 --  
 
NOTE: After adjustment, the washers be-  
tween the bolt head and the blade should be  
able to be turned by hand, but not loose  
enough to move when the unit is tilted from  
side to side.  
CAUTION: If the clearance between the  
cutting blades is set too wide, the blades will  
notcutcorrectly. Ifthe blades areadjustedtoo  
tight, overheating may occur.  
REPLACE FUEL FILTER  
Toreplacefuel filter, drainunit by runningit dry  
of fuel, then remove fuel cap/retainer assem-  
bly from tank. Pull filter from tank and remove  
it from thefuel line. Install new fuel filter onfuel  
line; reinstall parts.  
REPLACE SPARK PLUG  
Replace spark plug each year to ensure the  
engine starts easier and runs better. Set  
spark plug gap at 0.025 inch (0.6 mm). Igni-  
tion timing is fixed, nonadjustable.  
1. Twist, then pull off spark plug boot.  
2. Remove spark plug from cylinder and dis-  
card.  
Line  
3. Replace with Champion RCJ-6Y spark  
plug and tighten securely with a 3/4 inch  
(19 mm) socket wrench.  
el  
er  
4. Reinstall the spark plug boot.  
STORAGE  
WARNING: Perform the following  
steps after each use:  
S Allow engine to cool, and secure the unit  
before storing or transporting.  
OIL  
S Store unit and fuel in a well ventilated area  
where fuel vapors cannot reach sparks or  
open flames from water heaters, electric  
motors or switches, furnaces, etc.  
S Store unit with the blade cover installed.  
Position unit so that any sharp object can-  
not accidentally cause injury.  
Top Strap  
S Store unit and fuel well out of the reach of  
children.  
FUEL SYSTEM  
SEASONAL STORAGE  
Under FUELING ENGINE in the OPERA-  
TION section of this manual,see messagela-  
beled IMPORTANT regarding the use of ga-  
sohol in your engine. Fuel stabilizer is an ac-  
ceptable alternative in minimizing the formation  
of fuel gum deposits during storage. Add stabi-  
lizer to gasoline in fuel tank or fuel storage con-  
tainer. Follow the mix instructions found on sta-  
bilizer container. Run engine at least 5 minutes  
after adding stabilizer.  
Prepareunit for storage at end of season or if  
it will not be used for 30 days or more.  
If your unit is to be stored for a period of time:  
S Clean the entire unit.  
S Store in a clean dry area.  
S Clean all parts and check for damage.  
Have damaged parts repaired or replaced  
by an authorized service dealer.  
S Keep all nuts, bolts, and screws tight.  
S Lightly oil external metal surfaces, includ-  
ing the blade.  
HELPFUL TIP  
During storageof your gas/  
oil mixture, the oil will sepa-  
rate from the gas.  
We recommend that you  
shake the gas can weekly  
to insure proper blending of  
the gas and oil.  
S Install the blade cover.  
To oil the blade, do the following:  
S Stop the engine and allow blade to come to  
a complete stop.  
S Ensure ON/OFF switch is in the OFF posi-  
tion.  
S Disconnect the spark plug wire.  
S Apply a light machine oil along the edge of  
the top strap as shown.  
-- 8 --  
 
ENGINE  
OTHER  
S Remove spark plug and pour 1 teaspoonof  
40:1, 2-cycle engine oil (air cooled) through  
the spark plug opening. Slowly pull the  
starter rope 8 to 10 times to distribute oil.  
S Replace spark plug with new one of recom-  
mended type and heat range (see RE-  
PLACE SPARK PLUG section).  
S Clean air filter.  
S Do not store gasoline from one season to  
another.  
S Replace your gasoline can if it starts torust.  
NEED ASSISTANCE?  
NEED ASSISTANCE?  
Call 1-800-554-6723 for assistance.  
NEED SERVICE PARTS?  
Contact your dealer.  
S Check entire unit for loose screws, nuts,  
and bolts. Replace any damaged, broken,  
or worn parts.  
S At the beginning of the next season, use  
only fresh fuel having thepropergasolineto  
oil ratio.  
TROUBLESHOOTING TABLE  
WARNING: Always stop unitand disconnectspark plugbeforeperformingall ofthe  
recommended remedies below except remedies that require operation of the unit.  
TROUBLE  
CAUSE  
REMEDY  
Engine will not  
start.  
1. ON/OFF switch in the  
OFF position.  
2. Engine flooded.  
1. Move ON/OFF switch to the ON  
position.  
2. See “Starting a Flooded Engine”  
in Operation Section.  
3. Fuel tank empty.  
4. Spark plug not firing.  
5. Fuel not reaching  
carburetor.  
3. Fill tank with correct fuel mixture.  
4. Install new spark plug.  
5. Check for dirty fuel filter; replace.  
Check for kinked or split fuel line;  
repair or replace.  
6. Compression low.  
6. Contact an authorized service dealer.  
Engine will  
not idle  
properly.  
1. Carburetor requires  
adjustment.  
2. Crankshaft seals worn.  
3. Compression low.  
1. See “Carburetor Adjustment” in  
Service and Adjustments Section.  
2. Contact an authorized service dealer.  
3. Contact an authorized service dealer.  
Engine will not  
accelerate,  
lacks power,  
or dies under  
a load.  
1. Air filter dirty.  
1. Clean or replace air filter.  
2. Clean or replace plug  
and regap.  
2. Spark plug fouled.  
3. Carburetor requires  
adjustment.  
4. Carbon build-up on  
muffler outlet screen.  
5. Compression low.  
3. Contact an authorized service dealer.  
4. Contact an authorized service dealer.  
5. Contact an authorized service dealer.  
Engine  
1. Choke partially on.  
1. Adjust choke.  
2. Fuel mixture incorrect.  
2. Empty fuel tank and refill with  
correct fuel mixture.  
smokes  
excessively.  
3. Air filter dirty.  
4. Carburetor requires  
adjustment.  
3. Clean or replace air filter.  
4. Contact an authorized service dealer.  
Engine runs  
hot.  
1. See “Fueling Engine” in Operation  
section.  
2. Replace with correct spark plug.  
3. Contact an authorized service dealer.  
1. Fuel mixture incorrect.  
2. Spark plug incorrect.  
3. Carburetor requires  
adjustment.  
4. Carbon build-up on  
muffler outlet screen.  
4. Contact an authorized service dealer.  
-- 9 --  
 

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