740SX - Lawn mower Baumr-AG - Free user manual and instructions

USER MANUAL 740SX Baumr-AG

Red and silver lawn mower with black and silver blades, no visible text or symbols on the main body.

740SX Lawn Mower

User Manual

[Revision 1.0]

READ THIS MANUAL CAREFULLY BEFORE USE – FAILURE TO DO SO MAY RESULT IN INJURY, PROPERTY DAMAGE AND MAY VOID WARRANTY. • KEEP THIS MANUAL FOR FUTURE REFERENCE. • Products covered by this manual may vary in appearance, assembly, inclusions, specifications, description, and packaging.

The product is NOT supplied with engine oil, although traces of oil from the manufacturing process may be present. It is essential to add adequate engine oil of the correct type to the engine before use. Failure to add engine oil will void the product warranty.

Safety

Safety messages are designed to alert you to possible dangers or hazards that could cause death, injury or equipment or property damage if not understood or followed. Safety messages have the following symbols:

You WILL be KILLED or SERIOUSLY INJURED if you do not follow instructions.

It is vital that you read and understand this user manual before using the product, including safety warnings, and any assembly and operating instructions. Keep the manual for future reference.

Safety precautions and recommendations detailed here must be fully understood and followed to reduce the risk of injury, fire, explosion, electrical hazard, and/or property damage.

Safety information presented here is generic in nature – some advice may not be applicable to every product. The term "equipment" refers to the product, be it electrical mains powered, battery powered or combustion engine powered.

• Before Use - If you are not familiar with the safe operation/handling of the equipment or are in any way unsure of any aspect of suitability or correct use for your application, you should complete training conducted by a person or organization qualified in safe use and operation of this equipment, including fuel/electrical handling and safety.
• Do NOT operate the equipment in flammable or explosive environments, such as in the presence of flammable liquids, gases, or dust. The equipment may create sparks or heat that may ignite flammable substances.
• Keep clear of moving parts.
• Equipment may be a potential source of electric shock or injury if misused.
• Do NOT operate the equipment if it is damaged, malfunctioning or is in an excessively worn state.
• Do NOT allow others to use the equipment unless they have read this manual and are adequately trained.
• Keep packaging away from children - risk of suffocation! Operators must use the equipment correctly. When using the equipment, consider conditions and pay due care to persons and property.

General Work Area Safety

• Work areas should be clean and well it.
- Do not operate the equipment if bystanders, animals etc are within operating range of the equipment or the general work area.
- If devices are provided for connecting dust extraction / collection facilities, ensure these are connected and used properly. Dust collection can reduce dust-related hazards.

You CAN be KILLED or SERIOUSLY INJURED if you do not follow instructions.

General Personal Safety

• Wear appropriate protective equipment when operating, servicing, or when in the operating area of the equipment to help protect from eye and ear injury, poisoning, burns, cutting and crush injuries. Protective equipment such as safety goggles, respirators, non-slip safety footwear, hard hat, hearing protection etc should be used for appropriate equipment / conditions. Other people nearby should also wear appropriate personal protective equipment. Do not wear loose clothing or jewellery, which can be caught in moving parts. Keep hair and clothing away from the equipment.
• Stay alert and use common sense when operating the equipment. Do not overreach. Always maintain secure footing and balance.
• Do not use the equipment if tired or under the influence of drugs, alcohol, or medication.
• This equipment is not intended for use by persons with reduced physical, sensory, or mental capabilities.

General Fuel Safety

• Petrol/fuel/gasoline is extremely flammable – keep clear of naked flames or other ignition sources.
• Do not spill fuel. If you spill fuel, wipe it off the equipment immediately – if fuel gets on your clothing, change clothing.
• Do NOT smoke near fuel or when refuelling.
• Always shut off the engine before refuelling.
• Do NOT refuel a hot engine.
• Open the fuel cap carefully to allow any pressure build-up in the tank to release slowly.
  • Always refuel in well-ventilated areas.
• Always check for fuel leakage. If fuel leakage is found, do not start, or run the engine until all leaks are fixed.

General Carbon-Monoxide Safety

• Using a combustion engine indoors CAN KILL IN MINUTES. Engine exhaust contains carbon-monoxide – a poison you cannot smell or see.
• Use combustion engines OUTSIDE only, and far away from windows, doors, and vents.

You CAN be INJURED if you do not follow instructions or equipment damage may occur.

General Equipment Use and Care

• Keep packaging away from children and pets, potential risk of suffocation or choking.
• The equipment is designed for domestic use only.
• Handle the equipment safely and carefully.
• Before use, inspect the equipment for misalignment or binding of moving parts, loose components, damage, or any other condition that may affect its operation. If damaged, have the equipment repaired by an authorised service centre or technician before use.
• Prevent unintentional starting of the equipment - ensure equipment and power switches are in the OFF position before connecting or moving equipment. Do not carry equipment with hands or fingers touching any controls. Remove any tools or other items that are not a part of the equipment from it before starting or switching on.
• Do not force the equipment. Use the correct equipment for your application. Equipment will perform better and be safer when used within its design and usage parameters.
• Use the equipment and accessories etc. in accordance with these instructions, considering working conditions and the work to be performed. Using the equipment for operations different from those intended could result in hazardous situations.
• Always keep equipment components (engines, hoses, handles, controls, frames, housings, guards etc) and accessories (cutting tools, nozzles, bits etc) properly maintained. Keep the equipment clean and, where applicable, properly lubricated.
• Store the equipment out of reach of children or untrained persons. To avoid burns or fire hazards, let the equipment cool completely before transporting or storing. Never place or store the equipment near flammable materials, combustible gases, or liquids etc.
• The equipment is not weather-proof, and should not be stored in direct sunlight, at high ambient temperatures or locations that are damp or humid.
• Do not clean equipment with solvents, flammable liquids, or harsh abrasives.
• For specific equipment safety use and care, see Equipment Safety.

General Electrical Safety

• Inspect electrical equipment, extension cords, power bars, and electrical fittings for damage or wear before each use. Repair or replace damaged equipment immediately.
• Ensure all power sources conform to equipment voltage requirements and are disconnected before connecting or disconnecting equipment.
• When wiring electrically powered equipment, follow all electrical and safety codes.
• Always use a Residual Current Device (RCD) (GFCI) / Earth Leakage Circuit Breaker / Safety Switch when operating this item (electrical items only).
• High voltage / high current power lines may be present. Use extreme caution to avoid contact or interference with power lines. Electrical shock can be fatal.

General Electrical Safety

• Electrically grounded equipment must have an approved cord and plug and be connected to a grounded electrical outlet.
• Do NOT bypass the ON/OFF switch and operate equipment by connecting and disconnecting the electrical cord.
• Do NOT use equipment that has exposed wiring, damaged switches, covers or guards.
• Do NOT use electrical equipment in wet conditions or in damp locations.
• Do NOT use electrical cords to lift, move or carry equipment.
• Do NOT coil or knot electrical cords, and ensure electrical cords are not trip hazards.

General Service Information

• The equipment must be serviced or repaired at authorised service centres by qualified personnel only.
• Replacement parts must be original equipment manufacturer (OEM) to ensure equipment safety is maintained.
• Do NOT attempt any maintenance or repair work not described in this manual.
• After use, the equipment and components may still be hot – allow the equipment to cool and disconnect spark plugs and/or electrical power sources and/or batteries from it before adjusting, changing accessories, or performing repair or maintenance.
• Do NOT adjust while the equipment is running.
• Perform service-related activities in suitable conditions, such as a workshop.
• Replace worn, damaged or missing warning/safety labels immediately.

Child Choking Hazard!

• WARNING: CHOKING HAZARD - CHILDREN UNDER 8 YRS. CAN CHOKE OR SUFFOCATE ON SMALL PARTS. ADULT SUPERVISION REQUIRED.
• Carefully inspect anything a baby or child could gain access to, including this product & packaging.
• Dangers include anything of a size that could become stuck or lodged in a baby or child's airway.

• Dangers include things like raw, hard fruit and vegetable pieces, large pieces of meat, bones or sausage skins, popcorn, nuts,

hard lollies and corn chips, small magnets and batteries, coins, beads, marbles and small uninflated balloons, broken toys and smaller toys, buttons, keys, and coins. But there are also many more.

• Pay particular attention to accessories, nuts, bolts, screws, washers, caps, covers, loose parts, parts that could be removed or break off, pieces of packaging, staples, tape etc.
• In the case of any doubt, secure the item of concern in an appropriate manner, or completely remove the possibility of access by a baby or child.

Hazardous Components!

• BE AWARE THAT THE EQUIPMENT MAY INCLUDE HAZARDOUS COMPONENTS, SUCH AS BLADES, HOT SURFACES AND MOVING PARTS.
• MOVING BLADES CAN CAUSE SERIOUS INJURY AND EVEN DEATH IF USED IMPROPERLY OR WITHOUT SUFFICIENT PPE.
• DO NOT USE THIS EQUIPMENT ON UNEVEN SURFACES AND ALWAYS MAINTAIN GOOD BALANCE WHEN USING THIS EQUIPMENT. FAILURE TO DO SO MAY CAUSE SERIOUS INJURY.
• MAINTAIN A SECURE GRIP OF THE TRIGGER ASSEMBLY AT ALL TIMES.

DANGER

Using an engine or wood/charcoal/gas fuelled appliance indoors CAN KILL YOU IN MINUTES. Engine exhaust and wood/charcoal/gas fumes contain carbon monoxide. This is a poison you cannot see or smell.

NEVER use inside a building, home, garage, boat, caravan or tent EVEN IF doors and windows are open.

Only use OUTSIDE and far away from windows, doors, and vents.

Avoid other hazards - READ MANUAL BEFORE USE.

GENERAL:

- Do not operate in a hazardous location. Such areas include where there is a risk of explosion of petrol fumes, leaking gas or explosive dusts.

- Do not operate in a confined area where exhaust gases or wood/charcoal/gas fumes could reach dangerous concentrations.

PRODUCTS FEATURING AN ENGINE

- Follow all warnings in the section titled "GENERAL".

- Explosion hazard - never smoke while refuelling.

• Take care not to spill fuel. When refuelling the engine, ensure that the engine has been allowed to cool. Prevent spilling of fuel as this may also ignite with a hot engine.

- Never refuel while engine is running.

GENERATORS

- Follow all warnings in the sections titled "GENERAL" and "PRODUCTS FEATURING AN ENGINE".

- The output of this generator is potentially lethal. The generator should not be connected to a fixed electrical installation except by an appropriately licensed person.

- Not weatherproof – protect your machine. This machine is not weatherproof and should not be exposed to direct sunlight, high ambient temperature, damp conditions, wet conditions or high humidity conditions.

Intended use

This petrol lawn mower has been designed for cutting lawn areas in private houses and hobby gardens. The machine is to be used only for its prescribed purpose. Any other use is deemed to be a case of misuse. The user/operator, and not the manufacturer, will be liable for any damage or injuries of any kind caused as a result of this. 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.

Training

• Read the instructions carefully. Be familiar with the controls and the proper use of the equipment.
• Never allow children or people unfamiliar with these instructions to use the lawnmower. Local regulations can restrict the age of the operator.
• 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.

Preparation

• While mowing, always wear substantial footwear and long trousers. Do not operate the equipment barefoot or wearing open sandals.
• Thoroughly inspect the area where the equipment is to be used and remove all objects that can be thrown by the machine.
  • WARNING - PETROL IS HIGHLY FLAMMABLE.

- Store fuel in containers specifically designed for this purpose.

• Refuel outdoors only and do not smoke while refuelling.

- 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.

- If petrol is spilled, do not attempt to start the engine. Move the machine away from the area of spillage and avoid creating any source of ignition until petrol vapours have dissipated.

- Replace all fuel tank and container caps securely.

- Replace faulty silencers.

- Before using, always visually inspect to see that the blades, blade bolts, and cutter assembly are not worn or damaged. Replace worn or damaged blades and bolts in sets to preserve balance.

- On multi-bladed machines, take care as rotating one blade can cause other blades to rotate.

Operation

• Do not operate the engine in a confined space where dangerous carbon monoxide fumes can collect.
• Mow only in daylight or in good artificial light.
• Avoid operating the equipment on wet grass, where feasible.
  • Always be sure of your footing on slopes.
• Walk, never run.
• For wheeled rotary machines, mow across the face of slopes, never up and down.
  • Exercise extreme caution when changing direction on slopes.
• Do not mow excessively steep slopes.
• Use extreme caution when reversing or pulling the lawnmower towards you.
• Stop the blade(s) 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.
• Never operate the lawnmower with defective guards or without safety devices, such as deflectors and/or grass catchers, in place.
• Do not change the engine governor settings or overspeed the engine.
• Disengage all blade and drive clutches before starting the engine.
• Start the engine or switch on the motor carefully according to instructions, with feet well away from the blade(s).
• Do not tilt the lawnmower when starting the engine or switching on the motor, except if the lawnmower has to be tilted for starting. In this case, do not tilt it more than absolutely necessary and lift only the part which is away from the operator.
• Do not start the engine when standing in front of the discharge chute.
• Do not put hands or feet near or under rotating parts. Keep clear of the discharge opening at all times.
• Never pick up or carry a lawnmower while the engine is running.
• Stop the engine and disconnect the spark plug wire, make sure that all moving parts have come to a complete stop and, where a key is fitted, remove the key:

- Before clearing blockages or unclogging the chute.

- Before checking, cleaning, or working on the lawnmower.

• After striking a foreign object. Inspect the lawnmower for damage and make repairs before restarting and operating the lawnmower.

- If the lawnmower starts to vibrate abnormally (check immediately).

- Stop the engine and disconnect the spark plug wire, make sure that all moving parts have come to a complete stop and, where a key is fitted, remove the key:

- Whenever you leave the lawnmower.

- Before refuelling.

• Reduce the throttle setting during engine shut down and, if the engine is provided with a shut-off valve, turn the fuel off at the conclusion of mowing.
• Go slow when using a trailing seat.

Maintenance and Storage

• Keep all nuts, bolts, and screws tight to ensure the equipment is in safe working condition.
• Never store the equipment with petrol in the tank inside a building where fumes can reach an open flame or spark.
• Allow the engine to cool before storing in any enclosure.
  • To reduce the fire hazard, keep the engine, silencer, battery compartment, and petrol storage area free of grass, leaves, or excessive grease.
• Check the grass catcher frequently for wear or deterioration.
• Replace worn or damaged parts for safety.
• If the fuel tank has to be drained, this should be done outdoors.

Safety Symbols

The product may have safety warning labels attached to it, explained below. Understand the symbols on your product and their meanings. If any stickers become unreadable, unattached etc., replace them.

Flammable Material HazardFlammable liquids, gases, or substances etc may present.Avoid ignition sources and open flames. Danger of fire.	Read User ManualRead and fully understand product safety warnings, operation, procedures etc before using the product.	Use Hand ProtectionWear appropriate hand protection and take due care as the product or use of the product may present hand hazards.	EXHAUST FUMESCarbon-Monoxide HazardDo not use the product in confined areas or without adequate ventilation. Carbon-monoxide poisoning can be fatal.
Electrocution / Electrical Shock HazardHigh voltage or high current electricity may be present or required by the product. Take due care when handling electrical products, cables, plugs and leads. Electrical shock can be fatal.	Toxic Fumes / Dust HazardUsing the product or by-products from use may produce fumes, smoke or particles that could be harmful if inhaled. Wear appropriate breathing protection and have adequate ventilation.	Explosive Material HazardCombustible liquids, gases, or substances etc may be present.Avoid ignition sources and open flames. Danger of explosion.	Cutting / Amputation HazardThe product may have blades, edges or mechanical devices that can cause severe cut injury to fingers, limbs etc. Take due care when handling and using the product.
Crush HazardThe product may have blades, edges or mechanical devices that can cause severe crush injury to fingers, limbs etc. Take due care when handling and using the product.	Single Operator OnlyThe product must be operated by a single person only. More than one person operating the product may introduce additional hazards.	Use Face ProtectionWear appropriate full-face protection and take due care as the product or use of the product may present face and eye hazards.	Use Foot ProtectionWear appropriate foot protection and take due care as the product or use of the product may present foot hazards.
Use Eye / Ear / Head ProtectionWear appropriate eye and / or ear and / or head protection and take due care as the product or use of the product may present eye, hearing, and head hazards.	Running HazardDo not run on or near the product as doing so may present a fall hazard.	Diving HazardDo not dive into the product as doing so may present a neck / head injury hazard.	Adult Supervision RequiredAlways supervise children and other users of a product to prevent drowning or injury.
Skin Penetration / Puncture HazardThe product may produce pressure, emit liquids or objects that can cause severe injury to fingers, limbs, blood etc. Take due care when handling and using the product.	Hot Surface HazardBe aware that the product may produce high temperatures and hot surfaces that can cause burn injuries.	Flying Debris HazardBe aware that the product or use of the product may present hazards produced by flying debris. Wear appropriate clothing and protective devices.	Moving Parts HazardBe aware that the product contains or uses mechanical devices that move or rotate. Always wait for moving parts to stop fully before handling the product, adjusting, maintenance etc.
Carbon-Monoxide HazardDo not use the product in confined areas or without adequate ventilation. Carbon-monoxide poisoning can be fatal.	Pull HazardBe aware that the product contains or uses mechanical devices that can pull in objects and can cause severe injury to fingers, limbs etc. Take due care when handling and using the product.	Slope / Fall Injury HazardBe aware that using the product on sloping surfaces or in slippery conditions may present additional dangers from falls and contact with blades, moving parts, hot surfaces etc.	"Slam Dunk" WarningDo NOT attempt "slam dunk" manoeuvres as this may result in severe injury due to falling, product breakage or collapse etc.
Electrocution / Electrical Shock Hazard - OutdoorHigh voltage or high current electricity may be present or required by the product. Do NOT use in rain, damp, or wet conditions. Electrical shock can be fatal.	Electrocution / Electrical Shock Hazard - DisconnectHigh voltage or high current electricity may be present or required by the product. Always disconnect the product from the electrical supply before handling the product, adjusting, maintenance etc.	Power Line Electrocution HazardHigh voltage / high current power lines may be present. Use extreme caution to avoid contact or interference with power lines.Electrical shock can be fatal.	"Kick-Back" HazardHigh level of "kick-back" hazard that can cause the machine to suddenly rotate towards operator.Kick-back injury can be fatal.
Winch Operator Position HazardDo NOT stand between winch and load. Do NOT use winch to move people.	Winch Lift HazardDo NOT LIFT load vertically. Use machine to PULL only.	Cable HazardEnsure that load bearing cable is not kinked or knotted.	Winch Cable HazardEnsure that there is a minimum number of cable coils on winching mechanism.
Winch Hook HazardCarry hook to load – do NOT throw or run.	Flash / Blinding HazardWear appropriate eye protection for welding. Direct exposure to weld arcs may cause permanent eye injury.	Laser HazardLaser may be in use – do NOT look directly at laser or allow others to.	Choking HazardChildren under 8 yrs. Can choke or suffocate on small parts. Adult supervision required.

Table of Contents

Safety 2

Safety Symbols....6

Parts Identification 9

Assembly 11

Handle 11

Routing the cable....12

Grass Catcher....12

Connecting the Grass Catcher onto the Mower 13

Mulching Plug 13

Routing the Throttle and Choke Lever Cables 14

Checking the Engine Oil Level & Filling with Engine Oil 15

Filling with Engine Fuel....15

Adjustments.... 17

Setting the Cutting Height....17

Operation 18

Start and Stop the Engine ....18

To Start the Engine 18

To Stop the Engine ....20

To Clean a Flooded Engine....20

Using the Self-Propelled Function 20

Emptying the Grass Catcher ....21

Maintenance....23

General Cleaning....23

Spark Plug 23

How to Service the Air Filter 24

Changing the Engine Oil....24

Replacing the Blade....25

Storing the Lawnmower for Short Periods....25

Storing the Lawnmower for Extended Periods ......26

Maintenance Schedule 26

Maintenance Schedule – Petrol Engine / Machine....27

Transport 28

Troubleshooting 29

Specifications 30

Parts Identification

Technical diagram of a lawn mower with numbered parts for identification and assembly reference.

No.	Name	No.	Name
1	Soft grip	11	Height adjusting handle
2	Upper handle	12	Rear wheel
3	Self-Propel Lever	13	Dipstick
4	Speed control handle	14	Deck
5	Quick lock handle	15	Air cleaner
6	Lower handle	16	Spark plug
7	Grass box	17	Starter handle
8	Fuel tank cap	18	Rear discharge cover
9	Primer	19	Front wheel
10	Front decorative cover

Assembly

Handle

1. Fasten the lower handle to the device using two bolts and two small knobs on each side.
2. Unfold the upper handle and fix it to the lower handle using the big knobs and the bolts on each side.

Fig 2 Bolt Washer Knobs

Fig 3

NOTE: Make sure the recoil starter guide is on the right handle when you stand behind the mower.

Routing the cable

Use the supplied cable clip to route the cable up the lower part of the handle

Clip Fig 4

Grass Catcher

Fasten the upper cover and the lower cover together.

Video Tutorial:

Catcher Assembly

Fig 5 Grass box cover Bag

NOTE: Make sure that each buckle is fully secured.

Connecting the Grass Catcher onto the Mower

1. Lift the back cover by hand, and then attach the grass box.
2. After ensuring that the grass box is securely attached, lower the rear cover.

Fig 6 Grass bag Rear discharge cover

Mulching Plug

1. Remove the grass bag.
2. Push the plastic mulching plug into the discharge chute until it is locked in place.
3. Release the flap; it will close back to cover the mulching plug.

Fig 7 Mulching piug

Routing the Throttle and Choke Lever Cables

The images below show how to correctly route the cables. They must be routed on the inside of the handles if you intend on regularly folding them for storage. If routed underneath the handles or in any other way than shown, you will risk pinching and damaging the cables.

Exterior view of a black bicycle scooter with green checkmark indicators (no text or symbols on the main body)

VIDEO TUTORIAL: FOLDING THE HANDLES FOR STORAGE

B umr-AG. POWER BLADE FOLDING THE HANDLES FOR STORAGE CLICK ME

Checking the Engine Oil Level & Filling with Engine Oil

CAUTION: 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.

CAUTION: To prevent engine damage, the engine is shipped without oil or petrol. The engine must be filled with the correct grade of oil and petrol before starting the engine.

NOTE: Running the engine with a low oil level will cause engine damage. It is recommended that high detergent, premium quality 4-stroke engine oil be used. Using non-detergent oil can shorten the engine's service life and using 2-stroke oil will damage the engine.

CAUTION: Always use high-quality detergent oil classified as SAE 30 oil (or equivalent, e.g., SAE 10W/30, often termed as 4-stroke lawn mower oil). Never use additives with the recommended oil. To prolong the life of your engine, it is important that the oil is changed after the first 5 hours of use.

NOTE: To check the engine oil level, stop the engine and place 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, but do not turn it in.
3. Then 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.
4. Align the ribs of the cap with the groove of the filler neck, then rotate 1/4 turn to secure it.

Fig 8 Engine oil filler neck

Fig 9

Filling with Engine Fuel

CAUTION: Always use clean, fresh unleaded petrol. Purchase fuel in quantities that can be used within 30 days. Never mix oil with petrol.

CAUTION: Do not fill into the base of the neck to allow for fuel expansion. Do not overfill the fuel tank.

CAUTION: WARNING: Petrol is highly flammable, and extreme precaution must be taken when handling or working with it. Keep out of reach of children.

CAUTION: To prevent engine damage, the engine is shipped without oil or petrol. The engine must be filled with the correct grade of oil and petrol before starting the engine.

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 refuelled or where petrol is stored. Avoid repeated or prolonged contact with skin or inhalation of vapour.

1. Clean the area around the petrol filler cap before removing the cap. Remove the warning tag and check the fuel level.
2. Refill the tank if the fuel level is low.
3. Refuel carefully to avoid overfilling or spilling fuel. There should be no fuel in the filler neck.

740SX Lawn Mower

1. Clean up any overflow or splashes of petrol before starting the engine.
2. Tighten the filler cap after filling, finger tight only.

Fig 10 Fuel filler neck

Adjustments

Setting the Cutting Height

CAUTION: Adjust the cutting height only when the engine is switched off and the spark plug boot has been pulled.

The cutting height is centrally adjusted with the cutting height adjusting handle. Different cutting heights can be selected.

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Operation

Start and Stop the Engine

WARNING: The blade begins to rotate as soon as the engine is started.

NOTE: 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 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.

NOTE: To start the engine, make sure that the spark plug boot is located on the plug and the machine is filled with sufficient oil and petrol.

To Start the Engine

NOTE: • Before starting the mower check the oil and fuel levels. Warranty will be void if the engine becomes faulty due to insufficient oil and fuel levels. • Ensure the mower is set to the highest height setting so the blade is not resting deep into the grass.

1. When starting a cold engine, press the primer down fully 3-5 times.

(For lawnmowers with throttle control, set the throttle control lever to the START position before starting.)

WARNING: Excessive pressing of the primer may cause the engine to flood. 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 the primer down 3-5 times.

Fig 12 Primer

1. Turn the throttle handle to the "START" position and pull the start cord to run the engine.

Fig 13

1. Pull the starter handle out approximately 10-15 cm until you feel resistance, then start the engine with a sharp pull.

NOTE: If the engine fails to start after three pulls, repeat the process.

1. Once the engine is running, place the starter rope into the rope guide as shown in Fig 14.

Technical line drawing of a mechanical device with articulated arms and a base, labeled Fig 14 (no text or symbols on the diagram itself)

1. You can use the speed control handle to adjust the speed of the blade, as shown in Fig 15.

Fig 15 STOP STARTRUN

To Stop the Engine

As shown in Fig 16, turn the throttle handle to the "STOP" position, and the engine will stop.

Fig 16 STOP STARTRUN

To Clean a Flooded Engine

NOTE: 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 clear and start a flooded engine.

1. Turn the throttle handle to the "STOP" position to stop the engine.
2. Remove the spark plug, dry it, and then reinstall it.

NOTE: Install the spark plug carefully by hand to avoid cross-threading. After the plug is seated, tighten 1/8 to 1/4 turn with a socket spanner to compress the washer.

1. Turn the throttle handle to the "START" position and pull the start cord to run the engine.
2. Operate the starter as described above.

Using the Self-Propelled Function

As shown to the right, this unit is equipped with a self-propelled system. If you press the drive lever (clutch lever), the clutch for the drive will engage, and the lawnmower will start to move with the engine running.

To stop the moving lawnmower, simply release the drive lever in good time.

WARNING: Always observe the strictest safety procedures when using the lawnmower. Carefully read the safety instructions in this manual before using the lawnmower.

WARNING: Never open the ejector flap when the grass bag has been detached (to be emptied) and the engine is still running. The rotating blade can cause serious injuries!

Technical line drawing of a mechanical assembly with no visible text or symbols

1. Select your required setting.

2. Start the engine, allow it to run, and set it to the required speed (see "To Start the Engine").

3. Keep a firm grip on the upper handle with the engine stop/start lever and drive lever (clutch lever) engaged and walk along with its self-propelling to start mowing.

When Mowing:

• Walk. never run with the mower. be very careful when mowing uneven or rough ground.
• Mow across slopes. never up and down.
• Be careful when changing the direction of the mower on a slope.
• Do not mow excessively steep slopes.

Note: Grass clippings can clog underneath the mower deck, preventing the blades from turning. This can overheat the engine, causing excessive wear to engine components, reducing the lawn mower's overall lifespan or catastrophic failure of engine bearings and pistons.

Clogging occurs if you mow wet, long, or lush grass. For the best result, mow when the grass is dry and use a whipper snipper to reduce the height of grass longer than 15cm (6") before mowing on the highest cutting setting.

• Grass grows at different rates at different time of the year. Never use the lowest cutting height for the first cut of the season or in drought conditions.
• Only about one thirds of the grass height should be cut.
• When mowing with the mulching function, do not cut high or wet grass to ensure that the cut grass can be scattered efficiently. When you have been cutting for several minutes, please stop the mower, and clean the blade and the deck.
• Do not remove grass debris in the mower casing or on the blade by hand or with your feet. Instead, use suitable tools such as a brush or broom.

Emptying the Grass Catcher

A lawn mower generates significant airflow when it moves the grass into the catcher. The catcher is fitted with a full indicator flap, which stays up if there is space inside. When the space inside the catcher is filled with grass, the airflow is no longer enough to raise the flap. The flap will drop at this point, indicating it is time to empty the catcher.

Grass catcher full indicator flap (example)

As soon as grass clippings start to trail the lawn mower, it is time to empty the grass catcher.

NOTE· Before taking off the grass catcher, switch off the engine and wait until the blade has come to a stop.

1. To take off the grass catcher, use one hand to lift up the ejector flap and the other to grab onto the carry handle. The ejector flap automatically falls down after removing the grass catcher and closes off the rear chute opening.
2. Empty the grass catcher of grass debris and then refit grass catcher.

NOTE: If any grass residue is caught in the discharge chute, clean it using a brush. Do not remove grass debris in the mower casing or on the blade with your hand or feet. Instead, use suitable tools such as a brush or broom. To ensure that the cut grass can be collected into the grass catcher, the discharge opening, and interior of the mower casing must be cleared of any blockage.

Maintenance

ATTENTION: Surface corrosion will occur on metal surfaces over time and the rate of oxidation depends on factors such as proximity to the ocean and humidity or condensation of water vapour on metal surfaces. To mitigate this, WD40 can be used to remove surface corrosion then, when applied periodically, it will prevent rust from forming.

WARNING: Before performing any maintenance or cleaning work, switch off the engine and wait until the blade has come to a stop.

General Cleaning

The lawn mower should be cleaned thoroughly every time after it has been used. Always clean your lawnmower immediately after use. Do not allow grass cuttings and other debris to become dry and hard on any of the mower surfaces. Dried grass remnants and dirt may impair the mowing operation.

• Check that the grass chute is free of any residual grass. Remove any such residue.
• Check the underside of the lawn mower and the blade mount. For this purpose, tilt the lawn mower onto its left side (opposite the oil filler neck).

NOTE: Before placing the lawn mower on its side, fully drain the fuel tank using a petrol extraction pump. Do not tilt the lawn mower by more than 90 degrees.

Spark Plug

1. Once the engine has cooled, pull off the spark plug with a twist.
2. Remove the spark plug using a spark plug wrench.
3. Clean the spark plug with a wire brush (not supplied).
4. Using a feeler gauge, set the gap to 0.75 mm.
5. Install the spark plug carefully by hand to avoid cross-threading.
6. After the spark plug is seated, tighten with the spanner to compress the washer.

Fig 17 0.7-0.8mm

How to Service the Air Filter

Soiled air filters reduce the engine output by supplying too little air to the carburettor. If the air contains a lot of dust, the air filter should be checked more frequently.

WARNING: Never run the engine without the air filter element installed.

1. Remove the air cleaner outside cover. Be careful to prevent dirt and debris from falling into the air cleaner assembly.
2. Separate the air filter from the air filter housing.
3. Inspect the air filter. Clean a dirty air filter with warm water and mild soap. Allow the air filter to dry thoroughly then apply air filter oil to the air filter sponge. You can purchase this from your local automotive specialist.
4. Install the air filter assembly onto the carburettor and secure it with a screw.

NOTE: Do not use pressurized air or solvents to clean the filter. Pressurized air can damage the filter, and solvents will dissolve the filter.

Technical line drawing of a mechanical device with labeled components and directional arrow (no readable text or symbols)

Technical line drawing of a mechanical assembly (no text or symbols)

Technical line drawing of a mechanical device with rotating components and a labeled section (Fig 20), no readable text or symbols present.

Changing the Engine Oil

1. 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, replace the dipstick and wipe clean any spillages.
2. Refill with 400 ml of SAE 30 oil or equivalent, i.e., SAE 5W/30, SAE 10W/30. When the dipstick is rested on the filler pipe (i.e., not turned in place), the oil level must be between the min and max marks on the dipstick. See "Checking the Engine Oil Level and Filling with Engine Oil."
3. Start the engine and allow it to run briefly.
4. Stop the engine, wait one minute, and check the oil level. Top up if necessary.
   Note: See more in the engine manual (if available).

Replacing the Blade

For safety reasons, you should only ever have your blade sharpened, balanced, and mounted by an authorised service workshop. For optimum results, it is recommended that the blade be inspected once a year.

WARNING: Before you remove the grass collection bag, stop the engine, and wait until the blade stops completely.

WARNING: You will need garden gloves (not provided) and a spanner wrench (not provided) to remove the blade.

NOTE: Don't invert the mower. Tip it slightly towards the oil filler pipe and reach under the deck.

WARNING: Always handle the blade with care; sharp edges could cause injury. Use gloves. Renew your metal blade after 50 hours of mowing or 2 years, whichever is sooner, regardless of condition.

WARNING: If the blade is cracked or damaged, replace it with a new one.

WARNING: Don't hold the blade directly by hand.

NOTE: Maintain the sharpness of the blade when cutting grass. If the blade has worn excessively and become pitted and blunt, it should be replaced or sharpened. The sharpness of the blade will affect the performance of the lawnmower.

Fig 21

Technical diagram of a mechanical assembly with labeled components and assembly instructions

Storing the Lawnmower for Short Periods

The lawnmower can be stored for short periods of time (less than 15 days) without performing any storage maintenance. Before placing the lawnmower into storage, always carry out the following:

1. Allow the engine to fully cool.
2. Ensure the grass bag is empty.
3. Clean all debris from under the mower deck.
4. Store the lawnmower on a flat and level surface with the mower upright.
5. Store in a safe place which is not accessible to children or people who are not familiar with its operation.

Storing the Lawnmower for Extended Periods

If the lawnmower is to be placed into storage for more than 15 days, storage maintenance must be performed. If the following steps are not carried out, the lawnmower may not start correctly when next operated and may need to be serviced.

CAUTION: Do not empty the petrol tank in enclosed areas, near fire, or when smoking. Petrol fumes can cause explosions and fire.

1. Empty the petrol tank with a petrol suction pump if available.
2. Start the engine and let it run until any remaining petrol has been used up.
3. 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.
4. Clean the cooling fins of the cylinder and the housing.
5. Be sure to clean the entire machine to protect the paint.
6. Store the machine in a well-ventilated place.

Maintenance Schedule

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.

	12 hours of use	24 hours of use	36 hours of use
Air filter	Clean	Clean	Replace
Spark plug	Check	Clean	Replace
Engine oil	Check	Replace	Check

NOTE: The engine oil should be changed after the first 5 hours of use.

Maintenance Schedule – Petrol Engine / Machine

Component / Task	Every Use	After First 5 Hours Use	3 Months / 25 Hours Use	6 Months / 50 Hours Use	12 Months / 100 Hours Use	Major Service – Normal Use24 Months / 200 Hours Use	Major Service – Heavy-Duty UseEvery 200 Hours Use
Engine Oil ****	Check level. Adjust as necessary	Replace
Engine Oil Filter *				Replace
Loose Engine / Machine Fasteners	Check. Tighten as necessary
Air Filter	Check	Clean. Replace as necessary			Clean, Oil and Replace as necessary.	Replace
Spark Plug			Check	Replace
Spark Arrestor *
Fuel Filter *			Clean. Replace as necessary			Replace
Fuel Strainer *	Check
Float Bowl *				Clean
Fuel Lines / Hoses	Check	Replace as necessary
Fuel injector *					Check. Clean
Fuel Pump *
Fuel Tank					Flush and clean
Idle Speed					Check. Adjust as necessary
Valve Clearance					Check. Adjust as necessary
Cylinder Head Fasteners						Check. Tighten as necessary
Combustion Chamber					Check. Clean / de-coke as necessary
Battery Electrolyte *		Check level. Adjust as necessary
Major Service						Perform
Cutting Blade / Chain *	Check	Sharpen. Replace as necessary
Water Pump Oil **	Check level. Adjust as necessary					Replace
Hydraulic Fluid ***	Check level. Adjust as necessary				Replace
Drive Belt Maintenance *	Check tension.Clean & adjust as necessary.How to remove the cover.					Check. Replace as necessary

* Where applicable. ** Pressure washers with non-sealed water pumps. *** Log splitters only.

**** Briggs & Stratton "EXi" engines do NOT require engine oil changes; just ensure that oil level is correct.

Transport

1. Empty the petrol tank. Always let the engine run until it has used up the remainder of petrol in the tank.
2. Empty the engine oil from the warm engine.
3. Remove the spark plug boot from the spark plug.
4. Clean the cooling fins of the cylinder and the housing.
5. Use the original packaging to ship whenever possible.

Troubleshooting

WARNING: Before performing any maintenance or cleaning work, switch off the engine and wait until the blade has come to a stop.

CAUTION: • Improper repairs can result in the product functioning unsafely. This endangers yourself and your environment. • Faults which cannot be rectified with the aid of following table may be rectified by a specialist company only (customer service centre). • Please be aware that any improper repairs will also invalidate the warranty and additional costs may be incurred. • Use only genuine spare parts. Only these spare parts are designed and suitable for the product. The use of other spare parts not only voids the warranty, you can also endanger yourself and your environment.

Fault/Malfunction	Cause	Remedy
Loud while running, machine vibrates heavily	Screws are loose Check screws
	Blade fasteners are loose Check blade fasteners
	Blade is unbalanced Replace blade
Engine does not start	Spark plug is defective Replace spark plug
	Cutting blade worn or damaged Replace blade
	Fuel tank is empty Refill with fuel
	Engine may be flooded Remove plug and dry
Engine runs unsteadily	Air filter is soiled Clean the air filter
	Spark plug is soiled Clean the spark plug
Uneven mowing results	Blade is blunt Sharpen the blade
	Cutting height is too low Set correct height
Grass catcher is not filled sufficiently	Blade is worn Replace the blade
	Grass catcher is clogged Empty the grass catcher
	Lawn / Grass is wet Allow the lawn to dry
	Discharge channel/housing blocked Clear the discharge channel/housing
	Underside of the mower deck clogged Clean the underside of the mower deck
Self-propel function no longer works	Excessive grass build-up. Remove drive belt cover plate from the underside of the mower and remove all clumps of grass build-up.

Specifications

Engine Type	Air Cooled 4-Stroke
Fuel Type	Petrol Regular Unleaded 95+ RON
Oil Type 10W/30
Engine Displacement 150cc
Power Type Petrol
Self-Propelled	Yes
Starting System Recoil Start
Deck Material Steel
Blade Type Swing blades
Cutting Width 18"
Blade Qty 4
Cutting Height	25-75mm
Height Adjustment System	Central, 7 Positions
Front Wheels	7"
Rear Wheels	10"
Certification	EURO-V, EMC
Warranty (Months)	24

Note: Minimal Assembly Required

Some experts believe that the incorrect or prolonged use of almost any product may cause serious injury or death. To help reduce your risk of serious injury or death, refer to the information below. For more information, see www.datastreamserver.com/safety

• Consult all documentation, packaging, and product labelling before use. Note that some products feature documentation available online. It is recommended to print and retain the documentation.
  ■ Before each use, check the product for loose/broken/damaged/missing parts, wear, or leaks (if applicable). Never use a product with loose/broken/damaged/missing parts, wear, or leaks.
  ■ Products must be inspected and serviced (if applicable) by a qualified technician every 6 months. This is based on average residential use by persons of average size and strength, and on a property of average metropolitan size. Use beyond these recommendations may require more frequent inspections/servicing.
  ■ Ensure that all users of the product have completed a suitable industry recognised training course before being allowed access to the product.

The product has been supplied by a general merchandise retailer that may not be familiar with your specific application or description of application. Be sure to attain third-party approval from a qualified specialist for your application before use, regardless of any assurances from the retailer or its representatives.
This product is not intended for use where fail-safe operation is required. As with any product (for example, automobile, computer, toaster), there is the possibility of technical issues that may require the repair or replacement of parts, or the product itself. If the possibility of such failure and the associated time it may take to rectify could in any way inconvenience the user, business, or employee, or financially affect the user, business, or employee, then the product is not suitable for your requirements. This product is not intended for use where incorrect operation or a failure of any kind, including but not limited to, a condition requiring product return, replacement, parts replacement, or service by a technician may cause financial loss, loss of employee time or an inconvenience requiring compensation.
If this product has been purchased in error when considering the information presented here, contact the retailer directly for details of their returns policy, if required.

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