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Website: www.Amerisuninc.com
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Email: support@amerisuninc.com
INSTRUCTION MANUAL
25.4cc 2-Stroke Gas Powered Brush Cutter
And String Trimmer
Model #PS4532
3
CONTENTS
Technical data..................................................................................................3
Introduction…................................................................................................. 4
Safety information........................................................................................... 4
General safety procedures............................................................................... 5
Knowing your brush cutter..............................................................................9
Assembly instruction.......................................................................................10
Operation…..................................................................................................... 14
Maintenance.....................................................................................................17
Transport & storage.........................................................................................19
Troubleshooting...............................................................................................20
Exploded view & parts list.............................................................................. 22
Warranty.......................................................................................................... 28
TECHNICAL DATA
25.4cc 2-Cycle Gas 2 in 1 Brush Cutter &StringTrimmer
Model# PS4532
Engine type: Air-cooled,2 cycle,vertical piston valve,gasoline engine
Displacement: 25.4 cc
Fuel used: Unleaded gasoline mixed with lubricating oil (ratio of 50:1)
Fuel tank capacity: 18.6 fl.oz
Blade size: 10 inch
Trimmer line diameter: 0.095"
Cutting path diameter: 16"
Length of main pipe section: 59 inch
Length of drive shaft section: 60 inch
Package dimensions (L x W x H): 43.3 x 10.2 x10.4 inches
Net weight: 18.7 lb.
4
INTRODUCTION
Thank You for purchasing your PowerSmart®Product. This manual provides information regarding the
safe operation and maintenance of this product. Every effort has been made to ensure accuracy of the
information found in this manual. PowerSmart®reserves the right to change this product and
specifications at any time without prior notice.
Please keep this manual available to all users during the entire life of the product.
This manual contains special messages to bring attention to potential safety concerns, product
damage as well as helpful operating and servicing information. Please read all the
information carefully to avoid injury and machine damage.
QUESTIONS? PROBLEMS?
Please contact our Customer Service Department with any questions and/or comments, either by Email:
support@amerisuninc.com, or Toll Free at (800) 791-9458. We are available Mon-Fri 9am-5pm EST to
help solve any issues that you might encounter.
NOTICE REGARDING EMISSIONS
Engines that are certified to comply with U.S. EPA emission regulations for SORE (Small Off Road
Equipment), are certified to operate on regular unleaded gasoline, and may include the following
emission control systems: (EM) Engine Modifications and (TWC) Three-Way Catalyst (if so equipped).
SAFETY INFORMATION
Before operating this product, read and observe all warnings, cautions, and instructions on the product
and in this Owner’s Manual.
NOTE: The following safety information is not meant to cover all possible conditions and situations that
may occur. Read the entire Owner’s Manual for safety and operating instructions. Failure to follow
instructions and safety information could result in serious injury or death.
This safety alert symbol is used to identify safety information about hazards that can result in personal
injury.
A signal word (DANGER, WARNING, or CAUTION) is used with the alert symbol to
indicate the likelihood and the potential severity of injury. In addition, a hazard symbol may
be used to represent the type of hazard.
DANGER: Indicates a hazard, which, if not avoided, will result in death or serious injury.
WARNING: Indicates a hazard, which, if not avoided, could result in death or serious injury.
CAUTION: Indicates a hazard, which, if not avoided, might result in minor or moderate injury.
CAUTION: When used without the alert symbol, indicates a situation that could result in damage to
the engine.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
5
GENERAL SAFETY PROCEDURES
For any questions regarding the hazard and safety notices listed in this manual or on the product, please
call (800) 791-9458 Mon-Fri 9-5 EST. Please read and understand the instructions in this manual
before starting the engine or attempting to operate this unit.
WARNING: When using the unit, all safety rules must be followed. Please read these
instructions before operating the unit in order to ensure the safety of the operator and any
bystanders. Please keep these instructions for later use.
WARNING: This unit can cause serious injury including loss of limb(s) or blindness to the
operator and others. The warnings and safety instructions in this manual must be followed to
provide reasonable safety and efficiency in using the unit. The operator is responsible for following the
warnings and instructions in this manual and on the unit. Read the entire instruction manual before
assembling and using the unit!
Restrict the use of this unit to persons who read, understand, and follow the warnings and instructions in
this manual and on the unit. Never allow children to operate this unit.
OPERATOR SAFETY
Always wear safety glasses or similar eye protection when operating, or performing maintenance on
your unit. We recommend eye protection that is ANSI Z87 certified for impact resistance.
Use appropriate hearing protection.
Always wear long pants from a sturdy fabric, long sleeves, boots and gloves. Wearing safety leg
guards is recommended. Dress appropriate to the terrain that you will be clearing.
Being fully covered will also help to protect you from debris and/or pieces of toxic plants thrown by
the spinning line/blade. A face or dust mask if recommended of the operation in dry conditions.
It is recommended to wear foot protection with a reinforced toe.
Never attempt to use this product while barefoot or in sandals.
Secure longer hair to above the shoulders. Secure or remove loosely hanging clothing, jewelry, ties,
straps, tassels, etc. They can become entangled and caught within the moving parts.
Do not operate unit when you are tired, sick, upset or under the influence of alcohol, drugs, or
medication. Watch what you are doing; use common sense. Stay alert.
Never start or run the engine inside a room or building. Even with windows open, breathing CO
exhaust fumes can quickly disorient and/or subsequently become lethal.
Keep handles free of oil and fuel.
Always use the handlebar and a properly adjusted shoulder strap with a blade (see ASSEMBLY).
DANGER: CARBON MONOXIDE
Using any internal combustion engine indoors CAN KILL YOU IN MINUTES. Engine
exhaust contains carbon monoxide (CO). This is a poison gas you cannot see or smell. If you can smell
the engine exhaust, you are breathing carbon monoxide (CO). Even if you don’t smell exhaust, you could
still be breathing CO.
NEVER use an engine inside homes, garages, crawlspaces, or other partly enclosed areas. Deadly levels
of carbon monoxide can build up quickly in these areas. Using a fan, or opening windows and/or doors
will NOT properly vent CO or supply adequate fresh air. ONLY run an engine outside and far away from
all windows, doors, and vents. These openings can pull in engine exhaust.
6
Even if you use an engine correctly, CO may leak into the home. ALWAYS use a battery-powered or
battery-backup CO alarm in the home. If you start to feel sick, dizzy, or weak after the engine has been
running, move to fresh air RIGHT AWAY. See a doctor. You may have carbon monoxide poisoning.
WARNING: The exhaust from this product contains chemicals known to the State of California to
cause cancer, birth defects, or other reproductive harm.
WARNING: This engine may emit highly flammable and explosive gasoline vapors, which can
cause severe burns or even death if ignited. A nearby open flame can lead to explosion even if it
isn’t directly in contact with gasoline.
•
Do not operate near an open flame.
•
Do not smoke near the engine.
•
Always operate on a firm, level surface.
•
Always turn engine off before refueling. Allow engine to cool for at least 2 minutes before
removing fuel cap. Loosen cap slowly to relieve pressure in tank.
•
Do not overfill fuel tank. Gasoline may expand during operation. Do not fill to the top of the tank.
Allow for expansion.
•
Always check for spilled fuel before operating.
•
Empty fuel tank before storing or transporting the engine.
WARNING: This engine produces heat when running. Temperatures near exhaust can
exceed 1500F (650C).
Do not touch hot surfaces. Pay attention to warning labels on the engine identifying hot parts of the
machine. Allow engine to cool down after use before touching engine or areas of the engine that become
hot during use.
CAUTION: Misuse of this engine can damage it or shorten its life. Only use engine for its
intended purposes.
UNIT/MAINTENANCE SAFETY
WARNING: Stop unit and disconnect the spark plug before performing maintenance (except idle
speed adjustments).
Look for and replace damaged or loose parts before each use. Look for and repair fuel leaks before
use. Keep unit in good working condition.
Throw away blades that are bent, warped, cracked, broken, or damaged in any other way. Replace
trimmer head parts that are cracked, chipped, broken, or damaged in any other way before using the
unit.
Maintain unit according to recommended procedures. Keep blade sharp. Keep cutting line at the
proper length.
Use only specified replacement line. Never use wire, rope, string, etc.
Install required shield properly before using the unit.
Use only specified blade or trimmer head; make sure it is properly installed and securely fastened.
Never start engine with clutch shroud removed. The clutch can fly off and cause serious injury.
Be sure blade or trimmer head stops turning when engine idles.
Make idle speed adjustments with the lower end supported to prevent blade or trimmer line from
contacting any object. Hold unit by hand; do not use the shoulder strap for support.
Keep others away when making idle speed adjustments.
7
Use only recommended accessories and replacement parts.
Have all maintenance and service not explained in this manual performed by your authorized service
dealer.
CUTTING SAFETY
WARNING: Inspect area before starting unit. Remove all debris and hard objects such as
rocks, glass, wire, etc., that can ricochet, be thrown, or otherwise cause injury or damage
during operation.
Keep others including children, animals, bystanders, and helpers at least 50 feet (15meters) away.
Bystanders should be encouraged to wear safety glasses. Stop engine immediately if you are
approached.
Always keep engine on the right--hand side of your body.
Hold the unit firmly with both hands.
Keep firm footing and balance. Do not overreach.
Keep blade or trimmer head below waist level. Do not raise engine above your waist.
Keep all parts of your body away from blade, trimmer head, and muffler when engine is running. A
hot muffler can cause serious burns.
Cut from your left to your right. Cutting on right side of the shield will throw debris away from the
operator.
Use only in daylight or good artificial light.
Use only for jobs explained in this manual.
TRANSPORTING AND STORAGE
Stop the unit before transporting.
Keep the muffler away from your body.
Allow the engine to cool and secure the unit before storing or transporting it in a vehicle.
Empty the fuel tank before storing or transporting the unit. Run out of fuel left in the carburetor by
starting the engine and letting it run until it stops.
Store unit and fuel in area where fuel vapors cannot reach sparks or open flames from water heaters,
electric motors or switches, furnaces, etc.
Store unit so the blade or line limiter blade cannot accidentally cause injury. The unit can be hung by
the shaft.
Store unit 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 abnormal swellings. Prolonged use in cold weather has been linked to blood vessel damage
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. A reduced-vibration system does not guarantee the avoidance of these problems. Users
who operate power tools on a continual and regular basis must monitor closely their physical condition
and the condition of this tool.
Children
Sever injury can occur if the operator is not alert to the presence of children in the immediate area.
Children are often attracted to the mowing activity. Never assume that children will remain where you
last saw them.
8
1.
Keep children out of the mowing area and under the watchful care of a responsible adult other than
the operator.
2.
Be alert and turn mower off if a child enters the area.
3.
Never allow children under the age of 16 to operate the product.
4.
Use extra care when approaching blind corners, shrubs, trees, or other objects that may block your
view of a child.
Fuel safety
1.
Safe Handling of Gasoline
2.
To avoid personal injury or property damage, use extreme care in handling gasoline. Gasoline is
extremely flammable and the vapors are explosive.
3.
Extinguish all cigarettes, cigars, pipes, and other sources of ignition.
4.
Only use a US EPA approved compliant portable fuel container.
5.
Never remove gas cap or add fuel with the engine running. Allow engine to cool before refueling.
6.
Never attempt to refuel the product while indoors.
7.
Never store the machine or fuel container where there is an open flame, spark, or pilot light such as on
a water heater or on other appliances.
8.
Never fill containers inside a vehicle or on a truck or trailer bed with a plastic liner. Always place
containers on the ground away from your vehicle before filling.
9.
Remove gas-powered equipment from the truck or trailer and refuel it on the ground. If this is not
possible, then refuel such equipment with a portable container, rather than from a gasoline dispenser
nozzle.
10.
Keep the nozzle in contact with the rim of the fuel tank or container opening at all times until fueling
is complete. Do not use a nozzle lock-open device.
11.
If fuel is spilled on clothing, change clothing immediately.
12.
Never overfill fuel tank. Replace gas cap and tighten securely.
BRUSHCUTTER &STRING TRIMMER SAFETY
The blade can violently thrust away from material that it does not cut. Blade thrust can cause amputation
of arms or legs.
Do not use the trimmer head as a fastening device for the blade.
The blade will continue to spin after the trigger is released or engine is turned off. The coasting blade can
throw objects or seriously cut you if accidentally touched. Stop the blade by contacting the right-hand
side of the coasting blade with material already cut.
WARNING: Inspect area before starting unit. Remove all debris and hard objects such as
rocks, glass, wire, etc., that can ricochet, be thrown, or otherwise cause injury or damage
during operation.
Throw away and replace blades that are bent, warped, cracked, broken or damaged in any other way.
Install required shield properly before using the unit.
Use only specified blade and make sure it is properly installed and securely fastened.
Cut from your left to your right. Cutting on the right side of the shield will throw debris away from the
operator.
Always use the handlebar and a properly adjusted shoulder strap with blade (see ASSEMBLY).
9
KNOWING YOUR BRUSH CUTTER
Please use the illustration below to familiarize yourself with the location and function of the components
that control of your brush cutter.
Unpacking
Unpack the blower and all its parts, and compare against the list below. Do not discard the carton or
any packaging materials. Please call 1-800-791-9458 or E-mail us at support@amerisuninc.com if any
parts are damaged or missing.
Including:
Brush cutter /Trimmer head/Blade/Blade shield/Handle/Shoulder harness /S3、S4 Hex key/Spark plug
wrench/Oiler /User manual
1
Blade
9
Purge Bulb
2
Blade Shield
10
Fuel Tank Lid
3
Shaft
11
Fuel Tank
4
Connector Cover
12
Air Cleaner Cover
5
D-Handle
13
Choke
6
On/Off Switch
14
Starter Handle
7 Safety Lever 15 Cut-off Knife
8
Throttle Trigger
16
Trimmer head
Fig.1
10
Fig.3
ASSEMBLY INSTRUCTION
The following section describes steps necessary to prepare the brush cutter for initial use. If after
reading this section, you are unsure about how to perform any of the steps please call (800) 791-9458
Mon-Fri 9-5 EST for customer service. Failure to perform these steps properly can damage the brush
cutter or shorten its lifespan.
INSTALLING BRUSH CUTTER ATTCHEMENT
CAUTION: When installing brush cutter attachment, place the
unit on a flat surface for stability.
Pull out the stop pin (2) and push the lower part of the rod (1) right
down until the stop pin (2) slots into the hole (3) in the rod. This is
easier to do if you rotate the bottom of the rod (4) slightly in both
directions. The pin (2) is in place when it is completely lodged in the
hole. Lastly, tighten the knob (4) securely (See fig.2).
INSTALLING HANDLE
Position handle in a comfortable operating position and tighten four M5×
25 screws.
WARNING: Do not attempt to disassemble the two special
screws. The two clamps position has been adjusted at a suitable
place,do
not attempt to remove or move them. Otherwise, it can
result in serious personal injury.
INSTALLING PLASTIC BLADE SHIELD
CAUTION: The blade shield must be properly installed. This shield
helps provide partial protection to the operator, and others from the
risk of thrown objects and other debris.
1. Install the safety cover on the shaft with the safety cover bracket and the
screws provided (See fig.4).
2. Tighten the screws after setting the safety cover bracket at the
appropriate position.
Fig.2
Fig.4
11
BLADE INSTALLATION
WARNING: Wear protective gloves when handling or performing maintenance on the blade
to avoid injury. The blade is sharp and can cut you even when it is not moving.
WARNING: Do not attempt to use any blades, washers, nuts, or fastening hardware other than
shown in the following illustrations. These parts must be provided by the manufacturer and
installed as shown below. Failure to use proper parts can cause the blade to fly off and seriously
hurt you or others.
1. Insert the hex key (2) into the specific hole in the angle
transmission (3) and rotate the blade (1) by hand until the
hex key enters the inner hole, blocking rotation (See
fig.5).
2. Remove the split pin (4) and unscrew the nut (5) in a
clockwise direction.
3. Pull out the washer (6) and the outer ring-nut (7) and remove
blade.
4. Ensure that the grooves in the inner ring-nut (8) mach up
perfectly with the angle transmission (3).
5. Fit the blade (1) and outer ring-nut (7).
6. Refit the washer (6) and the nut (5), fully tightening it in an
anticlockwise direction.
7. Reposition the split pin (4) and refold the two ends.
8. Remove the hex key (2).
HEADLINE INSTALLATION/REPLACEMENT
1. Insert the hex key (2) into the specific hole in the angle transmission (3) and rotate the cutting line
head (1) by hand until the hex key enters the inner hole, blocking rotation (See fig.6).
2. Ensure that the grooves in the inner ring-nut (4) mach up perfectly with the angle transmission(3).
3. Fit the cutting line head (1) screwing it up in an anticlockwise direction.
4. Remove the hex key (2).
Fig.5
Headline replacement
Fig.6
Fig.7
12
USING THE SHOULDER HARNESS
WARNING: Proper shoulder strap and handlebar adjustments must be made with the engine
completely stopped before using unit.
1. Assemble and adjust the shoulder harness and belt (See fig.8).
2. Adjust the shoulder-harness button,and move the hook to your waist, then adjust the belt (If there
is a belt).
3. Hang the latch tab on the harness hook.
4. If the brush cutter doesn't balance,then adjust the harness hanger,and the handlebar,until the it balances.
5. To quickly detach the brush cutter from the harness, pull the quick-release latch tab upward.
6. Insert the latch tongue in the slot of the quick-release latch to reattach the brush cutter to the harness.
WARNING: Before using, please check the shoulder harness and confirm it is OK. Encounter
danger,please stop the brush cutter immediately,and pull the quick-release latch tab,the brush
cutter will be depart from your body.
FUEL&OIL MIXTURE
WARNING: • Never fill the fuel tank to the very top (under 3/4 of the tank).
• Never add fuel to the tank in a closed non-ventilated area.
• Do not add fuel to this unit close to an open fire or sparks.
• Be sure to wipe off spilled fuel before attempting to start engine.
• Do not attempt to refuel a hot engine.
Fuel used for this model is a mixture of unleaded gasoline and approved engine lubricant. When mixing
gasoline with two-cycle engine oil, use only gasoline which contains NO ETHANOL or
METHANOL(Types of Alcohol) . Use fresh (within 30 days from purchase) 87 octane or higher unleaded
gasoline known to be of good quality. This will help to avoid possible damage to engine fuel lines and
other engine parts.
Fig.8
13
WARNING: Fuel mixture at the rate other than 50:1 may
cause damage to the engine,Ensure mixture ratio is correct.
Do not mix gasoline and oil directly in the engine fuel tank.
WARNING: The engine exhaust from this product contains
chemicals known to cause cancer, birth defects, or other
reproductive harm.
FUEL
The engine uses two-stroke fuel, a mixture of gasoline and 2-stroke lubricant 50:1
GASOLINE
Use fresh (within 30 days from purchase) 87 octane or higher unleaded gasoline known to be of good
quality.
STORING FUEL
Store fuel only in a clean,safe, approved container. Check and follow local ordinances on type and location
of storage container.
IMPORTANT
Two-stroke fuel may separate. Shake fuel container thoroughly before each use. Stored fuel ages. Do not
mix more fuel than you expect to use within a month.
FUEL AND OIL MIXTURE
Inspect fuel tank making sure that it is clean and fill with fresh fuel. Use a mixture of 50:1.
MIXTURE RATIO IS 50:1
Fig.9
14
OPERATION
WARNING: Be sure to read the fuel information in the safety rules before you begin. If you
do not understand the safety rules, do not attempt to fuel your unit. Call customer support.
CHECK POINTS BEFORE OPERATION
Check for loose bolts, nuts and fittings.
Check the air cleaner for dirt. Clean the air filter of all dirt, etc. before operation.
Check to be sure that protector is securely in place.
Check to be sure that fuel is not leaking.
Check to be sure that blade is not cracked.
STARTING COLD ENGINE
1. Move the stop switch to "START" position (See fig.10).
2. Give a gentle push on the primer pump repeatedly (7-10times)
until fuel comes into the primer pump.
3. Cold Starts:Pull lever up to close choke.
4. Pull starter handle until engine flash fires.
5. Push choke lever inwards( excessive cranking with choke
lever will cause flooding engine making it difficult to start.)
6. Pull starter handle until engine starts.
7. Allow engine to warm up for a few minutes before using.
STARTING WARM ENGINE
1. The choke lever to the "RUN".
2. If fuel tank was not run dry, pull starter one to three times and engine should start.
3. If fuel tank was run dry, after refilling repeat steps 1-2-7 of starting cold engine instructions.
NOTE: If the starter rope is pulled repeatedly with the choke on, it may flood the engine and make
starting difficult. If you have flooded the engine, remove the spark plug and gently pull the handle on the
starter rope to eliminate any excess fuel; then dry the spark plug electrodes and replace it on the engine.
STOPPING THE ENGINE
Release the throttle trigger and allow the engine to run idle for a few seconds.
Move switch to STOP position.
Fig.10
15
CUTTING WITH A NYLON HEAD
Line head rotates in a counter CLOCKWISE
direction.The CUT-OFF KNIFE will be on the
right side of the debris shield (See fig.11).
For nearly all cutting, it is good to tilt the line head
so that contact is made on the part of the line
circle where the line is moving away from you and
the debris shield. This results in the debris being
thrown away from you.
WARNING: The proper debris shield must be in place on the unit when nylon cutting line is used.
The cutting line can flap around if too much line is exposed. Always use the plastic debri shield
with cut-off knife when using nylon cutting heads.
WARNING: Tilting the head to the wrong side will shoot the debris TOWARDS you.If the line
head is held flat to the ground so that cutting occurs on the whole line circle, debris will be
THROWN at you, drag will slow the engine down, and you will use up a lot of line.
WARNING: Use only quality nylon monofilament line of the diameter 2.5mm. Never use wire or
wire-reinforced line in place of nylon trimmer line. Load your nylon line cutting head only with
nylon trimmer line of the proper diameter.
WARNING:Use extreme caution when operating over bare spots and gravel, because the line can
throw small rock particles at high speeds. Debris shields on the unit cannot stop objects which
bounce or ricochet off hard surfaces.
Trimming (See fig.13)
This is feeding the trimmer carefully into the material you wish
to cut .Tilt the head slowly to direct debris away from you. If
cutting up to a barrier such as fence, wall or tree,approach from
an angle where any debris ricocheting off the barrier will fly
away from you. Move the line head slowly until the grass is cut
right up the barrier, but do not jam(overfeed )the line into the
barrier. If trimming up to a wire mesh or chain linked fence be
careful to feed only up to wire. If you go to far the line will
snap off around the wire. Trimming can be done to cut through
weed stems one at a time. Place the trimmer line head near the
bottom of the weed-never high up which could cause the weed
to chatter and catch the line. Rather than cut the weed right
through, just use the very end of the line to wear through the
stem slowly.
Fig.12
Fig.11
Fig.13
16
Scalping and edging (See fig.14,15)
WARNING: Do not use a steel blade for edging or
scalping.
Both of these are done with the line head tilted at a steep angle.
Scalping is removing top growth.Edging is trimming the grass
back where it has spread over a sidewalk or drive way. During
both edging and scalping, hold the unit a steep angle and in a
position where the debris, and any dislodging dirt and stones, will
not come back towards you even if it ricochets off the hard
surface. Although the picture shows how to edge and scalp every
operator must find for himself the angles which suits his body
size and cutting situation.
WARNING:Do not trim in any area where there are
strands of fencing wire (See fig.16). Wear protective
safety protecting, Do not cut where you cannot see what the
cutting device is cutting.
CUTTING WITH A BLADE
WARNING: Do not use a brush cutter for cutting trees.
There are many different types of blades, however the two most commonly used are the following.
BRUSHBLADE is used for cutting brush and weeds up to 3/4” in diameter. Only 255mm 3-blade can be
used in this type of brush cutter.
WARNING: Do not cut with dull, cracked or damaged
metal blade. Before cutting growth, inspect for obstructions
such as boulders, metal stakes or strands of wire from broken
fences. If an obstruction cannot be removed, mark its location so
that you can avoid it with the blade. Rocks and metal will dull or
damage a blade (See fig.17). Wires can catch on the blade head
and flap around or be thrown into the air.
Fig.14
Fig.15
Fig.16
Fig.17
17
Blade thrust is the reaction which may occur when the spinning blade
contacts anything it cannot cut.This contact may cause the blade to
stop for an instant ?and suddenly "thrust" the unit away from the object
that was hit.This reaction can be violent enough to cause the operator
to lose control of the unit.Blade thrust may occur without warning if
the blade snags ,stalls or binds.This is more likely to occur in areas
where it is difficult to see the material being cut from cutting ease and
safely,approach the weeds being cut from the right to the left,in the event
that an unexpected object or woody stock is encountered,this could
minimise the blade thrust reaction (See fig.18).
Scything weeds
This is cutting by swinging the blade in a level area. It can quickly clear
areas of field grass and weeds. Scything should not be used to cut large,
tough weeds or woody growths (See fig.19).
NOTE: Do not use a brush blade to cut trees which exceed a diameter of
1/2 to 3/4 inches.
Scything can be done in both directions, or just in one way which results in
the debris being thrown away from you.
That is using the side of the blade that it is rotating away from you. Tilt down the blade slightly on this
same side .You will be hit by some debris if you scythe in both directions.
Do not force the blade to cut. Do not change the angle of cut after into the wood. Avoid using any
pressure or leverage which could cause the blade to bind or crack.
MAINTENANCE
WARNING: Use only original manufacturer's replacement parts, accessories and attachments.
Failure to do so can cause possible injury, poor performance and may void your warranty.
The cutting attachment must not rotate in idle mode.If this requirement is not satisfied,the cluth has to
be adjusted or the machine needs an urgent maintenance by a qualified technician.
You may make adjustments and repairs described here.For other repairs,have the trimmer serviced by
an authorized service agent.
Consequences of improper maintenance may include excess carbon deposits resulting in loss of
performance and discharge of black oily residue dripping from the muffler.
Make sure all guards,straps,deflectors and handles are properly and securely attached to avoid the risk
of personal injury.
Fig.19
Fig.18
18
EXHAUST PORT AND SILENCER
Depending on the type of fuel used,the type and amount of oil used,and/or your operating conditions,the
exhaust port and silencer may become blocked with carbon deposits.Ifyou notice a power loss with your
petrol powered tool. A qualified service technician will need to remove these deposits to restore
performance.
ADJUSTING CARBURETOR
NOTE: Do not adjust carburetor unless necessary. If you have trouble with the carburetor, see your
dealer. Improper adjustment may cause engine damage and void warranty.
AIR FILTER
Accumulated dust in the air filter will reduce engine efficiency.
Increase fuel consumption and allow abrasive particles to pass into
the engine. Remove the air filter as often as necessary to maintain
in a clean condition.
Light surface dust can readily be removed by tapping the filter.
Heavy deposits should be washed out in suitable solvent.
Remove filter cover by loosening air filter cover knob (See fig.20).
FUEL FILTER
Fuel tank is fitted with a filter.Filter is situated at the free end of fuel pipe
and can be picked out through fuel port with a piece of hooked wire or the
Like (See fig.21).
Check the fuel filter periodically. Do not allow dust to enter into fuel
tank.Clogged filter will cause difficulty in starting engine or
abnormalities in engine performance.
When filter is dirty, replace the filter.
When the inside of the fuel tank is dirty, it can be cleaned by rinsing the
tank out with gasoline.
SPARK PLUG
Do not attempt to remove the plug from a hot engine in order
to avoid possible damage to the threads.
Clean or replace the plug if fouled with heavy oily deposits.
Replace the plug if the center electrode is worn rounded at the
end.
Spark gap 0.6-0.7mm (.023”.028") (See fig.22).
Fastening torque =14-15Nm(125-135in.lb)
BEVEL GEAR
After working (40-50) hours, fill with the right quantity of grease.
Remove the screw and put in the lithium-based grease. turning the shaft
manually until grease emerges, then refit the wash the screw (See fig.23).
Fig.21
Fig.23
Fig.20
Fig.22
19
TRANSPORT&STORAGE
TRANSPORT, HANDLING
WARNING: Please empty the fuel tank before transporting, to avoiding the engine leaked. For
avoiding the cutting attachment damaged the brush cutter and people, please removed the
cutting attachment ,and at the same time, resile the brush cutter as factory state , and then
casting all parts into the package. Before transporting, all parts should be packed and validated safe.
The engine should be turned off when the unit is moved
between work areas.
After the engine has stopped ,the muffler is still hot. Never
touch hot parts such as the muffler.
Confirm that the fuel has not leaked from the tank.
Allow the engine to cool, empty the fuel tank and secure
the unit from moving before transporting in a vehicle, if the
blade is fitted , always use the blade guard.
Installing blade guard (See fig.24).
Open the blade guard and install on the blade ,then put the
pin into the guard notch.
WARNING: Always place the blade guard on the blade when the unit is not in use.Remove the
blade guard before using the unit. If not removed,the blade guard could become a thrown object
as the blade begins to turn.
EXTENDED STORAGE
WARNING: Do not store in a closed area where fuel vapors can reach an open flame from hot
water heaters, heaters, furnaces, etc. Store in a locked, well ventilated area only.
Inspect, clean and repair unit if necessary.
Remove all fuel from tank.
Start engine-This will consume all fuel in fuel line and carburetor.
Remove spark plug and pour one tea spoon of clean motor oil into spark plug hole of cylinder-replace
spark plug.
Store in clean, dry, dust free area.
Fig.24
20
TROUBLESHOOTING
1 . FAILURE TO START
Symptom
Probable cause
Remedy
Cylinder
compress
pressure
normal
Spark plug
spark
normal
Fuel system
abnormality
These is no fuel in tank
Fuel filter obstructed
Add fuel in tank
Clean fuel filter
Fuel system
normal Fuel
Fuel is too dirty
There is water in fuel
There is too much fuel in cylinder
Mixture ratio is improper
Replace fuel
Replace fuel
Take down spark plug and dry it
Mixture proration
Fuel
system
normal
High
voltage
wire spark
normal
Spark plug
Spark plug fouled with oily
deposits
Spark plug insulation damage
Spark gap is too large or small
Clean the oily deposits
Replace spark plug
Adjust spark gap 0.6-0.7mm
High voltage wire
spark abnormality
High voltage wire breach or break
off
Coil looseness
Replace or tighten
Tighten
Fuel
system
normal
Ignition
system
normal
Compression pressure
is inadequate
Piston ring attrite
Piston ring is broken
Piston ring cementation
Spark plug looseness
Conjoint surface of the cylinder
and crank case leak
Replace a new
Replace
Eliminate
Tighten
Eliminate
Compression normal
High voltage wire and spark plug
contact poor
Stop switch failure or short circuit
Tighten the spark plug cap
Repair or replace
21
2 . LOW OUTPUT
Symptom
Probable cause
Remedy
Flameout when speedup
The smoke is thin, carburetor spout
backward
Fuel filter obstruct, fell short of fuel
Muffler fouled with oily deposits
Clean fuel filter、clean fuel road、
adjust carburetor
Clean the oily deposits
Compress press is inadequate Piston、piston ring、cylinder attrite Replace piston、piston ring
Engine leak Conjoint surface of the cylinder and
crank case leak
Repair
The end of two crank shaft leak The seal is bad Replace seal
Engine overheats
Burning room fouled with oily deposits
Avoid use it for long time、high
speed and heavy load clean the oily
deposits
3 . ENGINE RUNNING UNSTABLE
Symptom
Probable cause
Remedy
There are knock sound in engine Piston、piston ring、cylinder attrite
Piston pin、piston attrite
Bearing of crank shaft attrite
Replace piston、piston ring
Replace piston pin、piston
Replace bearing
There are metal knock sound Engine overheats
Burning room fouled with oily deposits
Gasoline branded is unfit
Avoid use it for long time、high speed
and heavy load
Clean the oily deposits
Replace with required branded octane
Engine ignition break off There is water in fuel spark gap is wrong
coil gap is wrong
Instead fuel
Adjust spark gap 0.6-0.7mm
Adjust coil gap 0.3-0.4mm
4 . THE ENGINE SUDDENLY STOPPED
Probable cause
Remedy
Fuel has been used up
Spark plug fouled with oily deposits and short circuit high
voltage wire fall off
Add fuel
Clean the oily deposits connect
22
EXPLODED VIEW AND PARTS LIST
Engine exploded view
23
Engine parts list
Item Stock # Description Qty
Item
Stock # Description Qty
1 GB70.1+GB93+GB97 Screw M5×16 4 35 CG305F-HS.1-3 Rubber 1
2 P23.10A Starter 1 36 CG305F-HS.1-1 Holder A 1
3 P23.9A Guide Cover assy 1 37 CG305F-HS.1-2 Holder B 1
4 1E36F.2 Oil seal 2 38 GB70.1+GB93+GB97 Screw M5×16 1
5 P23.11-2 Crank case R 1 39 GB70.1+GB93+GB97 Screw M5×25 2
6 GB/T119.1 Pin 4×h8×82 40 P23-7 Gasket insulator 1
7GB/T276 Bearing 6001/P53 2 41 P23.3 Insulator 1
8P23.11-3 Gasket crank case 1 42 GB70.1+GB93+GB97 Screw M5×25 2
9KBK081211.5 Bearing 1 43 1E36F-2A-1 Gasket carburetor 1
10 P23.6A.1 Crank shaft assy 1 44 1E34F-2E.1A Carburetor 1
11 1E40FP-3Z.3-1 Key 1 45 1E34F.1.1 Cleaner base assy 1
12 P23.11-1 Crank case F 1 46 GB70.1+GB97.1 Screw M5×60 2
13 GB/T70.1 Screw M5×16 7 47 1E34F.1-1 Air filter element 1
14 1E34F.6-2 Ring snap 2 48 HP23.1-1 Cover cleaner 1
15 1E34F.6-3 Piston pin 1 49 1E34FG.1.1 Knob cover 1
16 P26.1A-1 Piston 1 50 1E34F-3 Gasket muffler 1
17 1E34F.6-5 Ring piston 2 51 1E34F-2E.2 Muffler 1
18 P23-2 Gasket cylinder 1 52 HP23-5A Cover 1
19 P26-1 Cylinder 1 53 HP23-8 Screw M5×25-10.9 2
20 CMR6A Spark plug 1 54 GB70.1+GB93+GB97 Screw M5×14 2
21 PO40-5 Spacer Ig coil 2 55 HP23-2 Clapboard 1
22 P23.5.2 Wire lead assy 1 56 HP23.3 Top cover 1
23 HP23.2.1 IG coil 1 57 1E33F-4 Spacer Ig coil 1
24 GB70.1+GB93+GB97 Screw M4×20 2 58 GB70.1+GB93+GB97 Screw M5×18 1
25 P23.5.1.1 Rotor magnet 1 59 EB-415.4.2-4 Fuel pipe 2.5×1.25×
100
1
26 GB/T6177 Nut M8 1 60 EB415.4.2-2 Plug 1
27 1E34F-11 Wave washer 2 61 CG420.1.3.2-2 Fuel pipe 3×1×165 1
28 1E34F.10D Clutch assy 1 62 IE32FL.6.2B Tank cap assy 1
29 1E34F-13 Washer 2 63 HP23.6.1 Fuel tank 1
30 1E34F-12 Clutch bolt 2 64 HP23.4 Stand 1
31 CG260A.1A.1 Clutch drum assy 1 65 GB70.1+GB93+GB97 Screw M5×20 3
32 GB/T894.1 Circlips for shaft-type
A15
1 66 P40.12.2-3A Filter 1
33 HP23.5.1 Fan cover 1 67 P23.12-1 Snap rings 1
34 GB70.1+GB93+GB97 Screw M5×18 3
24
Brush cutter &String trimmer exploded view
Item Stock # Description Qty
A PS4532-A Gear Case Ass’y 1
1 PS4532-A-001 Stop Ring 26 1
2 PS4532-A-002 Stop Ring 10 1
3 PS4532-A-003 Bearing 6000-2RS/P6 1
4 PS4532-A-004 Bearing 6000/P6 2
5 PS4532-A-005 Pinion 1
6 PS4532-A-006 Screw M5×20 1
7 PS4532-A-007 Screw M5×12 4
8 PS4532-A-008 Bolt M5×20 1
9 PS4532-A-009 Gear Case 1
10 PS4532-A-010 Safety Guard 1
11 PS4532-A-011 Gear 1
12 PS4532-A-012 Gear Shaft 1
13 PS4532-A-013 Bearing 6002-2RS/P6 1
14 PS4532-A-014 Stop Ring 32 1
15 PS4532-A-015 Holder A 1
16 PS4532-A-016 Holder B 1
17 PS4532-A-017 Washer 10 1
18 PS4532-A-018 Left Nut 1
19 PS4532-A-019 Pin 2×16 1
Item Stock # Description Qty
B PS4532-B Handle 1
1 PS4532-B-001 Screw M5×35 4
2
PS4532-B-002
Handle
1
3 PS4532-B-003 Rubber Cover 1
4 PS4532-B-004 Handle Cover 1
Item Stock # Description Qty
C PS4532-C Clamp 2
1 PS4532-C-001 Clamp 1
2 PS4532-C-002 Screw M5×35 1
3 PS4532-C-003 Nut M5 1
25
Item Stock # Description Qty
D PS4532-D Fore-Pipe Comp. 1
1 PS4532-D-001 Hose Sleeve 1
2 PS4532-D-002 Rubber Cover 3
3 PS4532-D-003 Oil-bearing 3
4 PS4532-D-004 Drive Shaft 1
5 PS4532-D-005 Pipe 1
Item Stock # Description Qty
E PS4532-E Rear-Pipe Comp. 1
1 PS4532-E-001 Ribber Pipe (5mm) 1
2 PS4532-E-002 Rubber Cover 3
3 PS4532-E-003 Oil-bearing 3
4 PS4532-E-004 Pipe 1
5 PS4532-E-005 Drive Shaft 1
6 PS4532-E-006 Adapter Comp. 1
Item Stock # Description Qty Item Stock # Description Qty
F PS4532-F Joining Ass’y 1 8 PS4532-F-008 Washer 6 1
1 PS4532-F-001 Bolt M6×55 1 9 PS4532-F-009 Bin 1
2 PS4532-F-002 Nut M5 1 10 PS4532-F-010 Spring 1
3 PS4532-F-003 Joining 1 11 PS4532-F-011 Cover 1
4 PS4532-F-004 Bolt M5×12 1 12 PS4532-F-012 Loop 1
5 PS4532-F-005 Nut M6 1 13 PS4532-F-013 Bin comp. 1
6 PS4532-F-006 Screw M6 1 14 PS4532-F-014 Screw M5×25 1
7 PS4532-F-007 Handle 1 15 PS4532-F-015 Washer 1
26
Item Stock # Description Qty
G PS4532-G Level Ass’y 1
1 PS4532-G-001 Clamp 1
2 PS4532-G-002 Screw M5×16 1
3 PS4532-G-003 Tine 1
4 PS4532-G-004 Spring 1
5 PS4532-G-005 Spring 1
6 PS4532-G-006 Spring 1
7 PS4532-G-007 Safety Lever 1
8 PS4532-G-008 Throttle Lever 1
9 PS4532-G-009 Cable Comp. 1
10 PS4532-G-010 Screw M5×25 2
11 PS4532-G-011 Nut M5 3
12 PS4532-G-012 Box, left 1
13 PS4532-G-013 Stop Switch 1
14 PS4532-G-014 Tube (12.5×170) 1
15 PS4532-G-015 Screw M5×30 1
16 PS4532-G-016 Clamp 1
17 PS4532-G-017 Rubber Cover 1
18 PS4532-G-018 Box, Right 1
Item Stock # Description Qty
H PS4532-H Holder Ass’y 1
1 PS4532-H-001 Harness Clamp 1
2 PS4532-H-002 Clamp 1
3 PS4532-H-003 Screw M5×20 1
4 PS4532-H-004 Nut M5 1
27
Item Stock # Description Qty
I PS4532-I Guard Ass’y 1
1 PS4532-I-001 Bracket 1
2 PS4532-I-002 Screw M5×30 2
3 PS4532-I-003 Screw M5×12 1
4 PS4532-I-004 Screw ST4.2×16 1
5 PS4532-I-005 Safety Guard 1
6 PS4532-I-006 Screw M5×16 4
7 PS4532-I-007 Guard Ass’y 1
8 PS4532-I-008 Guard 1
9 PS4532-I-009 Screw ST4.2×16 2
10 PS4532-I-010 Blade 1
Item Stock # Description Qty
J PS4532-J Nylon Cutter Head 1
1 PS4532-J-001 Case 1
2 PS4532-J-002 Spring 1
3 PS4532-J-003 Cord φ2.5×2100 2
4 PS4532-J-004 Cord Holder 1
5 PS4532-J-005 Cover 1
6 PS4532-J-006 Cover 1
Item Stock # Description Qty
K PS4532-K Harness Ass’y 1
L PS4532-L Blade 1
M PS4532-M Blade Guard 1
28
TWO (2) YEARS LIMITED WARRANTY
PowerSmart is committed to building equipment that will provide years of dependable service. Our warranties are
consistent with our commitment and dedication to quality.
TWO (2) YEARS LIMITED WARRANTY OF POWER SMART PRODUCTS FOR HOME USE.
PowerSmart (“Seller") warrants to the original purchaser only, that all PowerSmart consumer power tools will be
free from defects in material or workmanship for a period of two (2) years from date of purchase. If the tool(s) is
used while providing professional or commercial services, the warranty coverage shall be for a maximum of (90)
days.
SELLER’S SOLE OBLIGATION AND YOUR EXCLUSIVE REMEDY under this Two (2) Years Limited
Warranty and, to the extent permitted by law, any warranty or condition implied by law, shall be the repair or
replacement of parts, without charge, which are defective in material or workmanship and which have not been
misused, carelessly handled, or improperly repaired, by person(s) other than an Authorized Seller or Service
Center.
Please be aware that normal wear parts are not covered this warranty. This includes drive belts, blades and grass
bags. Carburetor issues, and/or other damage found to be the result of stale, contaminated or compromised
fuel, are not covered under this limited warranty.
To make a claim under this Limited Warranty, you must return the entire power tool product; transportation
prepaid, to PowerSmart. The owner must include a legible copy of the original receipt, which shall list the date of
purchase, along with the company’s name where the product was purchased.
THIS LIMITED WARRANTY DOES NOT APPLY TO ANY ACCESSORY ITEMS INCLUDED WITH THE
TOOL SUCH AS CIRCULAR SAW BLADES OTHER RELATED ITEMS OR TO ANY REPLACEMENT
PARTS LISTED UNDER MAINTENANCE.
ANY IMPLIED WARRANTIES SHALL BE LIMITED IN DURATION TO TWO (2) YEARS FROM DATE OF
PURCHASE. SOME STATES IN THE U.S. AND SOME CANADIAN PROVINCES DO NOT ALLOW
LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY
NOT APPLY TO YOU.
IN NO EVENT SHALL SELLER BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES
(INCLUDING BUT NOT LIMITED TO LIABILITY FOR LOSS OF PROFITS) ARISING FROM THE SALE
OR USE OF THIS PRODUCT. SOME STATES IN THE U.S. AND SOME CANADIAN PROVINCES DO NOT
ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO
THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.
THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE
OTHER RIGHTS WHICH VARY FROM STATE TO STATE IN THE U.S., PROVINCE TO PROVINCE IN
CANADA AND FROM COUNTRY TO COUNTRY.
For questions, comments, technical assistance or to order repair parts
Please call toll free at: 1-800-791-9458 (M-F 9am – 5pm EST)
Email: [email protected]
PLEASE SAVE ALL OF YOUR ORIGINAL RECEIPTS. THIS WARRANTY IS VOID WITHOUT THEM.
