YARD FORCE Petrol Lawnmower Instruction Manual
- June 7, 2024
- YARD FORCE
Table of Contents
Petrol Lawnmower
GB
PETROL LAWNMOWER
Original Instructions
GM B46
XSZ46E
READ & UNDERSTAND INSTRUCTION MANUAL Save all warnings and instructions for
future reference.
Service centre: +44(0)1904727513 Mail: support@yardforce.co.uk Web:
www.yardforce.co.uk
SUMEC UK UNIT A&B ESCRICK BUSINESS PARK ESCRICK, YORK YO19 6FD
1
Read this manual carefully prior to assembling and operating the petrol
lawnmower. It is dangerous to operate this product without being familiar with
these instructions. Keep this manual in a safe place and have it ready for
future reference.
2
A
6
7 8 9 10 11
B
a
b
c
d
e
f
5 4 3 2 1
X2 X2 X2 X1
g
3
C
D
E
F
G
H
I
J
4
K
L
M
N
2 1
O
P
Q
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GM B46 Original Instruction
CONTENT
Intended use
07
General safety warnings
07
Product safety warnings
10
Symbols
12
Technical data
15
Description of product
16
Installation
17
Operation
18
Maintenance and storage
21
Troubleshooting
24
CE declaration
25
6
INTENDED USE
This lawnmower has been designed for cutting grass. The machine is to be used
only for its prescribed purpose, any other use is deemed to be a case of
misuse. Please note that our equipment has not been designed for use in
commercial, trade or industrial applications. Our warranty will be voided if
the machine is used in commercial, trade or industrial businesses or for
equivalent purposes.
GENERAL SAFETY WARNINGS
Safety Warnings
WARNING: Read all safety warnings and instructions. Failure to follow the
warnings and instructions may result in electric shock, fire and/or serious
injury.
WARNING! Read all safety warnings and instructions designated by the symbol.
Save all warnings and instructions for future reference.
Always ensure anyone intending to operate this machine is fully conversant
with the contents of this instruction manual prior to assembling, maintaining
or operating the machine. Perform assembly operations as described in this
manual. Failure to observe this warning may lead to serious injury, death or
damage to the machine. Always take care when removing the packaging, to
prevent damage to you or to the machine.
IMPORTANT! Before assembling the machine, check all the parts indicated in the
manual are in the box. Inspect all the parts for signs of damage. Do not
assemble the
7
GENERAL SAFETY WARNINGS
machine if you observe any damaged components.
NOTE: This lawnmower complies with the Noise Emission Directive 2000/14/EC.
1. Keep this operating and maintenance manual in a safe place for reference
at a later date.
2. Read the instructions carefully. Be familiar with the controls and the
proper use of the equipment.
3. Never allow children or people unfamiliar with these instructions use the
lawnmower. Local regulations can restrict the age of the operator.
4. Never mow while people, especially children or pets, are nearby. Keep in
mind that the operator or user is responsible for accidents or hazards
occurring to other people or their property.
5. This appliance is not intended for use by people (including children) with
reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction concerning
the use of the appliance by a person responsible for their safety.
6. Never touch a rotating blade.
Personal safety 1. While mowing, always wear substantial footwear
and long trousers. Do not operate the equipment when barefoot or wearing open-
toed sandals. 2. Thoroughly inspect the area where the equipment is to be used
and remove all objects which can be thrown by the machine.
8
GENERAL SAFETY WARNINGS
3. Petrol is highly flammable; store fuel in containers specifically designed
for this purpose. a) Refuel outdoors only and do not smoke while refuelling.
b) Add fuel before starting the engine. Never remove the cap of the fuel tank
or add petrol while the engine is running or when the engine is hot. c) If
petrol is spilled, do not attempt to start the engine but move the machine
away from the area of spillage and avoid creating any source of ignition until
petrol vapours have dissipated. d) Replace all fuel tank and container caps
securely.
4. Replace faulty silencers. 5. Prior to use, visually inspect to see that
the blade,
blade bolts and cutter assembly are not worn or damaged. Replace worn or
damaged blades and bolts in sets to preserve balance.
Operation safety
1. Do not operate the engine in a confined space where dangerous carbon
monoxide fumes can collect.
2. Mow only in daylight or in good artificial light. 3. Avoid operating the
equipment on wet grass,
where possible. 4. Always be sure of your footing on slopes. 5. Walk, never
run. 6. Mow across the face of a slope, never up and
down. 7. Exercise extreme caution when changing direction
9
PRODUCT SAFETY WARNINGS
on slopes. 8. Do not mow excessively steep slopes. 9. Use extreme caution when
reversing or pulling the
lawnmower towards you. 10. Stop the blade if the lawnmower has to be tilted
for transportation when crossing surfaces other than grass and when
transporting the lawnmower to and from the area to be mowed. 11. Never operate
the lawnmower with defective guards or without safety devices, for example
deflectors and/or grass catchers, in place. 12. Do not attempt to change the
engine governor settings or overload the engine. 13. Start the engine
carefully according to the instructions and with feet well away from the
blade. 14. Do not tilt the lawnmower when starting the engine. 15. Do not
start the engine without the grass collector in place. 16. Do not put hands or
feet near or under rotating parts. Keep clear of the discharge opening at all
times. 17. Never pick up or carry a lawnmower while the engine is running. 18.
Stop the engine and disconnect the spark plug cable, making sure that all
moving parts have come to a complete stop: a) Before clearing blockages or
unclogging the chute. b) Before checking, cleaning or working on the
lawnmower. c) After striking a foreign object, inspect the
10
PRODUCT SAFETY WARNINGS
lawnmower for damage and make repairs before restarting and operating the
lawnmower. d) If the lawnmower starts to vibrate abnormally, check
immediately. 19. Stop the engine and disconnect the spark plug wire, and make
sure that all moving parts have come to a complete stop before refuelling.
Maintenance and storage 1. Keep all nuts, bolts and screws tight to be sure
the
equipment is in safe working condition. 2. Never store the equipment with
petrol in the tank
inside a building where fumes can reach an open flame or spark. 3. Allow the
engine to cool before storing in any enclosure. 4. To reduce the fire hazard,
keep the engine, silencer and petrol storage area free of grass, leaves or
excessive grease. 5. Check the grass collector frequently for wear or
deterioration. 6. For safety, always replace worn or damaged parts. 7. If the
fuel tank has to be drained, this should be done outdoors.
11
SYMBOLS
Safety symbols The purpose of safety symbols is to attract your attention to
possible dangers. The safety symbols and the explanations with them require
your careful attention and full understanding. The symbol warnings do not, by
themselves, eliminate any danger. The instructions and warnings they give are
no substitutes for proper accident prevention measures.
WARNING: Be sure to read and understand all safety instructions in this
operator’s manual, including all safety alert symbols such as “DANGER,”
“WARNING,” and “CAUTION” before using this tool. Failure to follow all
instructions listed below may result in electric shock, fire and/or serious
personal injury.
SAFETY ALERT SYMBOL: Indicates DANGER, WARNING, or CAUTION. May be used in
conjunction with other symbols or pictographs.
Symbol meaning This page depicts and describes safety symbols that may appear
on this product. Read, understand and follow all instructions on the machine
before attempting to assemble and operate.
12
SYMBOLS
Please read all of the safety and operating instructions carefully before
using this machine. Read the instruction manual before operating.
Keep bystanders away – especially children and pets.
Beware of sharp blades – remove the spark plug lead before maintenance
No naked flames.
Appropriate ear, eye and head protection (PPE) must be worn.
Add engine oil. Only refuel with unleaded petrol.
Hot surfaces will burn the hands!
Warning! The lawnmower’s exhaust gas contains toxic substances. Do not run the
engine in closed or poorly-ventilated areas.
13
SYMBOLS
The blade continues to rotate for a period after the machine is switched off.
Do not touch the blade until all the machine components have stopped
completely. The product complies with the applicable European directives, and
an evaluation method of conformity for these directives was done. Sound level
data (96 dB), in accordance with
96 Directive 2000/14/EC.
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TECHNICAL DATA
Model Engine type Engine displacement Engine power Max. engine speed Cutting
width Grass bag capacity Ignition Fuel tank capacity Oil tank capacity
Measured sound power level Guaranteed sound power level Vibration Spark type
Net weight
GM B46 Single cylinder 4-stroke
140cm3 2.1kW
2900r/min 46cm 55L T.C.I 0.8L 0.47L
96 dB(A) K=1.5dB(A) 95 dB(A)
6m/s2 k=1.5m/s2 QC12YC 26kg
WARNING: Depending on how the product is actually used, the vibration values can differ from the declared total! Adopt proper measures to protect yourself against vibration exposures. Take the whole work process, including times the product is running under no load or switched off, into consideration. Proper measures include, among others, regular maintenance and care of the product and its attachments, keeping hands warm, regular breaks and proper planning of work processes.
15
DESCRIPTION OF PRODUCT
Parts description (Fig. A)
1. Engine-B&S 500E 2. Cable clip 3. Handle quick release lever 4. Start/stop
lever 5. Top handle 6. Self-propelled switch lever 7. Rope guide 8. Grass bag
9. Safety flap 10. Cutting height adjustment lever 11. Deck
Check the delivery parts (Fig. B)
Remove the machine from its packaging carefully and make sure that all of the
following parts are present: a. Main mower deck (with upper handle) b. Lower
handle c. Grass bag d. Grass bag handle e. Mulching plug f. Manual g.
Accessories
WARNING:If any parts are damaged or missing, do not operate this tool until
these parts are replaced. Failure to heed this warning could result in serious
personal injury.
NOTE: Always recycle the packaging in accordance with local recycling
guidelines.
16
INSTALLATION Installing the handle
1. Attach the lower handle onto the unit by using one bolt and one handle
tensioning knob on each side. (Fig. C)
2. Install the upper handle onto the lower handle by using one handle quick
release lever each side. (Fig. D)
Fitting the cable clip
Ensure that the cable clips supplied are used to fix the cable to the lower
handle. (Fig. E)
Mowing with grass collection bag
1. Attach the grass bag handle to the grass bag. (Fig. F) 2. Attach the grass
bag to the frame by fixing all plastic hooks. (Fig. G) 3. Lift the safety flap
with one hand and hook in the grass bag. (Fig. H) 4. Release the safety flap
to secure the grass bag in position.
Mowing with mulching plug
1. Remove the grass bag. 2. Push the plastic mulching plug into the discharge
chute. (Fig. I) 3. Release the flap, it will close back to cover the mulching
plug.
17
OPERATION
Filling with engine oil
IMPORTANT! The following procedures and adjustments must be performed before
the engine is started. Do not attempt to make any of these adjustments while
the engine is running.
This engine is shipped without oil or petrol, any oil residue is from testing
prior to shipping. The engine must be filled with the correct grade of oil and
petrol before starting the engine. Running the engine with a low oil level
will cause irreparable engine damage. Always use high-quality detergent oil
classified SAE 30 oil (or equivalent, e.g. 5W 30, often termed as 4-stroke
lawnmower oil). Only use additives recommended by the engine manufacturer. To
prolong the life of your engine, it is important that the oil is changed after
the first 5 hours of use.
Check the engine oil level with the engine stopped and the mower on a level
surface.
1. Remove the oil filler dipstick and wipe oil from it with a clean cloth. 2.
Insert the dipstick into the oil filler neck, and screw it in. 3. Remove the
dipstick and check the oil level. The oil level must be between the min.
and max. marks on the dipstick. If near the lower level, fill to the upper
level with the recommended oil (SAE 30 or equivalent). Do not overfill. Wipe
away any spilt oil. (Fig. J ) 4. Before using for the first time, add 0.5
litres of oil (SAE 30).
Filling with engine fuel (Fig. K)
WARNING! Refuel in a well-ventilated area with the engine stopped. Do not
smoke or allow flames or sparks in the area where the engine is refueled or
where petrol is stored. Avoid repeated or prolonged contact with skin or
inhalation of vapour.
CAUTION! Petrol is highly flammable and extreme caution must be taken when
handling or working with it. Keep out of reach of children.
1. Clean the area around the petrol filler cap before removing. Check the
fuel level. 2. Refill the tank if the fuel level is low. 3. Always use clean,
fresh unleaded petrol and purchase fuel in quantities that can be used
within 30 days.
Never mix oil with petrol. To allow for expansion, carefully refuel and avoid
overfilling or spillage. There should be no fuel in the filler neck. Clean up
any overflow or splashes of petrol before starting the engine. Tighten the
filler cap after filling, finger tight only.
18
OPERATION
Setting the cutting height (Fig. L)
WARNING! The blade can cause serious injury. Before adjusting the mower
height, stop the engine and wait for the mower blade to come to a complete
stop.
1. Pull the lever towards the wheel, then move it forward or backward to
adjust the cutting height.
2. Move it to any one of the 7 positions for the desired cutting height. 3.
Return the lever into the securing plate.
NOTE: Never use the lowest cutting height for the first cut of the season or
in drought conditions. Only about one third of the grass height should be cut
at this time.
Starting the engine
WARNING! Do not operate the machine in enclosed or poorly-ventilated areas, as
the exhaust gas contains toxic substances. Keep hands, feet, hair and clothing
away from all the moving parts of the machine. The exhaust and other parts of
the machine will become hot during use. Make sure that the blade is securely
fastened before starting the engine.
1. When starting a cold engine, press down the primer fully 3-5 times. (Fig.
M) Pressing the primer button too many times could cause the engine to flood.
NOTE: When starting a warm engine, the primer does not need to be used. If the
engine stops due to a lack of petrol, refill and press down the primer 3-5
times.
2. Start/stop bar activation Pull the start/stop bar towards you. (Fig. N)
3. Pull cord handle With the right hand, slowly but firmly pull the starter
handle and rope from the pull cord guide until you feel resistance, then pull
briskly. If the engine fails to start after three pulls, repeat the start
process. When the engine starts, return the starter rope to the rope guide
gently.
To stop, release stop/start bar
Failure to start If the engine won’t start after you have operated the starter
several times, the engine may be flooded with excess fuel. Use the following
procedure to clean and start a flooded engine: A. Release the stop/start bar.
B. Remove the spark plug, dry it, and then reinstall it. Install the spark
plug carefully by hand, to avoid cross-threading. After the plug is seated,
tighten it 1/8 to 1/4 turns with the socket spanner to compress the washer. C.
Pull the stop/start bar towards the upper handle. D. Operate the starter, as
described above.
19
OPERATION
Using the Self-propelled function
1. This lawnmower equipped with self-propelled system. 2. Push the self-
propelled rear switch bar towards the handle and hold it in position. The
lawnmower will start to move automatically. (Fig. O) 3. To stop the moving
lawnmower, simply release the drive.
Mowing with collection bag
WARNING! Always observe the strictest safety procedures when using the
lawnmower.
Start the engine and allow it to run. Keep a firm grip on the upper handle and
stop/start bar and walk along with it. Never run with the mower. Be very
careful when mowing uneven or rough ground. Maintain a stable footing. Mow
across slopes, never up and down. Be careful when changing the direction of
the mower on a slope. Do not use the mower on a steep slope of more than 15°.
NOTE: The best result will be achieved if the grass is dry. Wet grass tends to
clog the blade and the grass collection system. Grass grows at different rates
at different times of the year. Never use the lowest cutting height for the
first cut of the season or in drought conditions. Only about one third of the
grass height should be cut. If the lawnmower will not collect the cuttings
efficiently, the grass discharge chute may be blocked, the grass bag may be
full or the underside of the mower deck may be clogged.
Function of full indicator (Fig. P) If the grass bag is empty or it is not
filled with grass, the grass full indicator will be open. If the grass bag is
filled with grass the grass full indicator will be closed.
Emptying the grass bag
Raise the discharge flap with one hand and remove the grass bag using its
handle with your other hand. To maintain safety, the discharge flap will close
back to cover the mulching plug when you release the flap. Empty the grass
debris in the grass collection bag and refit the bag. If any grass residues
are caught in the discharge chute, clean it using a nylon-bristled brush.
Mowing with mulching
When mulching, remove the collection grass bag and put the plastic mulching
plug into the rear discharge chute. Then release the flap, it will close back
to cover the mulching plug.
NOTE: To ensure that the cut grass can be mulched efficiently, do not cut high
or wet grass
20
MAINTENANCE AND STORAGE
Storing the lawnmower for short periods
After mowing, please follow the actions below prior to placing the lawnmower
in storage: – Allow the engine to fully cool. – Ensure the grass bag is empty.
– Clean all debris from under the mower deck. Store the lawnmower on a flat
and level surface with all 4 wheels on the ground. Store in a dry, safe place
which is not accessible by children or people who are not familiar with
operation.
Storing the lawnmower for extended periods
CAUTION! Do not empty the petrol tank in enclosed areas, near fire or when
smoking. Petrol fumes can cause explosions and fire. Always carry the product
on its gripping surfaces. If the lawnmower is to be placed into storage at the
end of the season, or if the mower is not to be used for a longer period than
6 weeks, storage maintenance must be performed on the lawnmower. Temperature
fluctuations cause condensation, which contaminates fuel and causes starting
problems. Simply emptying the machine of fuel will prevent this. Empty the
petrol tank with a petrol suction pump, if available, or use the tipping
method. Start the engine and let it run until any remaining petrol has been
used up. Change the oil at the end of every season. To do so, remove the used
engine oil from a warm engine and refill with fresh oil. Remove the spark plug
from the cylinder head. Fill the cylinder with approx. 20ml of oil from an oil
can. Slowly pull back the starter handle, which will bathe the cylinder wall
with oil, and screw the spark plug back in. Clean the cooling fins of the
cylinder and the housing. Be sure to clean the entire machine to protect the
paint. Store the machine in a well-ventilated place.
Maintenance schedule
WARNING! Before you tip the lawnmower onto its side, completely empty the fuel
tank using a petrol suction pump. Never turn the mower upside down. Before
commencing any maintenance, always disconnect the spark plug. Performing
routine maintenance correctly on your lawnmower will ensure you get years of
trouble-free use. Please keep this manual safe for future reference. It is
recommended that the following maintenance schedule is adhered to. This will
ensure the lawnmower operates correctly and is safe to use.
21
MAINTENANCE AND STORAGE
After every use After 12 hours use After 24 hours use After 36 hours use
Cleaning Air filter Spark plug Engine oil Cutting blade
Clean / /
check check
Clean Clean check check check
Clean Clean check check check
Clean replace replace check replace
Cleaning
1. To ensure long life and good performance of the machine, it is important
to keep the machine clean and well lubricated. Make sure the chute is clean
and under the deck is cleared from wet debris (see also short term storage).
2. Do not allow grass cuttings and other debris to become dry and hard on any
of the mower surfaces, as this will directly affect the cutting and grass
collection performance. Make sure that the underside of the lawnmower deck is
clean and clear.
3. Never clean the lawnmower with a water jet or high-pressure cleaner. The
engine must remain dry. Do not use aggressive cleaning agents or solvents,
such as cold degreasers or petroleum ether.
Cleaning or replacing the air filter
WARNING! Never run the engine without the air filter element installed:
1. Loosen the fastener that holds the cover. 2. Open the cover and remove the
filter. 3. To loosen debris, gently tap the filter on a hard surface. If the
filter is excessively dirty,
replace with a new filter. 4. Install the filter. 5. Install the cover tabs
into the slots. 6. Close the cover and secure with the fastener.
Cleaning or replacing the spark plug
1. Once the engine has cooled, pull off the spark plug boot with a twist.
Remove the spark plug using the socket spanner supplied.
2. Clean the plug with a wire brush. 3. Using a feeler gauge, set the gap to
0.51mm. 4. Install the spark plug carefully by hand to avoid cross-threading.
5. After the spark plug is seated, tighten with the spanner to compress the
washer.
Changing the oil
Tilt the lawnmower towards the oil filler, have a container ready to catch the
oil and remove the dipstick. Once the oil has been emptied, wipe clean any
spillages. Refill with 470ml SAE 30 oil or equivalent, i.e. SAE 5W/30, SAE
10W/30). When the dipstick is rested on the filler pipe, the oil level must be
between the min. and max. marks on the dipstick.
22
MAINTENANCE AND STORAGE
See `Filling with engine oil’. Do not overfill. Start the engine and allow it
to run briefly. Stop the engine, wait one minute and check the oil level. Top
up if necessary.
Replacing the cutting blade (Fig. Q)
WARNING! USE GLOVES.
Before you remove the grass collection bag, stop the engine and wait until the
blade stops completely. You will need garden gloves (not provided) and a
spanner wrench to remove the blade. Always handle the blade with care – sharp
edges could cause injury. Don’t hold the blade directly by hand. Renew your
metal blade after 36 hours of mowing or after 2 years, whichever comes first,
regardless of condition. Regularly check your blade. If the cut of your grass
is poor, the blade might be blunt. Damaged blades not only result in a bad
cut, they cause excessive vibration and uneconomical running of the engine. If
the blade has worn excessively and become pitted and blunt, it should be
replaced or sharpened. Tip the machine slightly towards the oil filler pipe
and reach under the deck. Hold the blade and unscrew the blade bolt
counterclockwise using a spanner wrench. Remove the washer and the blade.
Inspect the blade adaptor for any signs of damage. Fit a new blade, locate the
blade on the two studs on the blade flange and then replace the washer and
bolts. Check the washer is still slightly domed to keep the pressure on the
bolt to stop it unwinding, keeping the blade firmly secure. Then replace the
washer (right way round!) and bolts. Make sure the blade is correctly
positioned and then firmly tighten the bolt. Do not over tighten. The up turn
of the blade must project into the motor compartment.
23
TROUBLESHOOTING
WARNING: Always switch off the engine and pull the ignition cable before
starting any inspection or adjustment work. If after making an adjustment or
repair to the engine you let it run for a few minutes, remember that the
exhaust and other parts will get hot. The following table provides solutions
to common problems encountered with the lawnmower:
Fault
Possible cause
Loud while running, machine vibrates heavily
– Screws are loose – Blade fasteners are loose – Blade is unbalanced
Solution
– Check screws – Check blade fasteners – Replace blade
Engine does not start
– Start/stop bar not pressed – Primer bulb is empty – Spark plug is defective – Fuel tank is empty – Engine may be flooded
– Press start/stop bar – Press primer bulb 3-5 times – Replace spark plug – Refill with fuel – Remove plug and dry,
Engine runs unsteadily
– Air filter is soiled – Spark plug is soiled
Uneven
– Blade is blunt
mowing results – Cutting height is too low
– Clean the air filter – Clean the spark plug
– Sharpen the blade – Set correct height
– Cutting height is too low Unsatisfactory – Blade is worn grass collection – Grass bag is clogged
– Set correct height – Replace the blade – Clear any clogged grass debris
24
CE DECLARATION
To the provisions of Council Directives
We SUMEC UK Co.,Ltd. Unit A&B, Escrick Business Park Escrick, York YO 19 6FD
Declare that the product: Description: PETROL LAWNMOWER
Model No. XSZ46E / GM B46A Function: Cutting grass
Complies with the essential health and safety requirements of the following
directives: EMC Directive: 2014/30/EU Machinery Directive: 2006/42/EC Noise
Directive: 2000/14/EC amended by 2005/88/EC Emission Directive:97/68/EC
amended by 2012/46/EU
EUStandards and technical specification referred to: EN ISO 14982:2009 EN
5359-1:2013 EN 5359-2:2013/A1
Authorized Signatory Date: 11.10.2017
Signature:____
Name: Mariana Hall General Manager
SUMEC UK Unit A&B Escrick Business Park Escrick, York YO19 6FD
25
References
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