512 ES VAR Big Wheeler - Lawn mower GUDE - Free user manual and instructions

Product type	Self-propelled lawn mower
Brand	Güde
Model	512 ES VAR Big Wheeler
Engine	4-stroke petrol engine
Power	2.5 kW
Displacement	139 cm³
Start	Electric (battery) + manual
Cutting width	51 cm
Cutting system	Rotary blade
Cutting height adjustment	Central, 6 positions
Cutting height range	25 – 75 mm
Drive type	Variable transmission (VAR)
Forward speed	Variable
Wheel size	Large wheels (Ø 200 mm rear, 180 mm front)
Grass catcher capacity	60 L
Housing	Pressed steel
Handlebar	Ergonomic folding
Dimensions (L × W × H)	140 × 55 × 100 cm
Weight	32 kg
Fuel tank	1 L
Oil capacity	0.5 L
Fuel type	Unleaded petrol
Mulching function	Yes (optional kit)
Side discharge	Possible with adapter
Sound level (LWA)	96 dB(A)
Vibration level	5.0 m/s²
Warranty	2 years
Spare parts available	Yes

Frequently Asked Questions - 512 ES VAR Big Wheeler GUDE

How to start the 512 ES VAR Big Wheeler mower?

Ensure the tank contains petrol and the engine oil is at the correct level. Insert the safety key, set the engine brake lever to the start position (if present). Turn the ignition key for electric start, or pull the manual starter if the battery is drained. Consult the manual for specific details.

What type of engine oil to use?

Use a quality 4-stroke engine oil SAE 30 (for ambient temperatures > 5°C) or SAE 10W-30 (all season). The oil capacity is about 0.5 L. Check the level before each use and change the oil after the first 5 hours of operation, then every 25 hours.

How to adjust the cutting height?

The central adjustment is made using a single lever located on the housing. Push the lever to raise the height (tall grass) or lower it for a lower cut. There are 6 marked positions, from 25 mm (closest cut) to 75 mm (high cut). Never do this adjustment with the engine running.

What to do if the mower does not start?

First check for petrol and oil. Make sure the safety key is in place and the engine brake lever is pressed against the handlebar. If the electric start does not work, the battery may be drained; use the manual starter. Clean the spark plug and check the air filter. If the problem persists, consult a professional.

How to clean the housing after use?

After disconnecting the spark plug (cold engine), tilt the mower on the spark plug side to avoid oil leaks. Use a gentle water jet to remove grass and dirt. Avoid directing water into the engine, air filter, and exhaust. Dry thoroughly before storing.

When should the blade be sharpened?

Sharpen the blade at least once per season, or as soon as you notice uneven or shredded cutting. A dull blade strains the engine and damages the lawn. Remove the blade, sharpen it with a file or grinder (30° angle), then balance it before reassembly. Wear gloves.

What is the capacity of the grass catcher?

The fabric or plastic grass catcher has a capacity of 60 litres. It is recommended to empty it regularly to avoid overloading the mower and reducing cutting efficiency. When full, the catcher often blocks; you then need to empty it to continue.

Can the cut grass be used as mulch?

Yes, this mower is compatible with mulching. To do this, install the mulching kit (sold separately) which closes the discharge and the special blade finely chops the grass. The cut grass remains on the lawn as natural fertilizer. Be sure to mow often and not cut too much grass at once.

How to fold the handlebar for storage?

Loosen the knobs or locking screws located on the handlebar joints. Fold the upper part of the handlebar forward or backward depending on the model, until it is parallel to the housing. Some models require unlocking a lever. Consult the manual for the exact diagram.

Where to find spare parts for the 512 ES VAR Big Wheeler?

Spare parts (blade, air filter, spark plug, belt, wheels, etc.) are available at Güde dealers, DIY stores or on the Internet. Use the model number (512 ES VAR Big Wheeler) to find compatible parts. The warranty is 2 years, contact Güde customer service for repairs under warranty.

USER MANUAL 512 ES VAR Big Wheeler GUDE

Big Wheeler 508 VARI-S

94153

512 ES VARI

95360

ENGLISH Please read the instructions carefully before starting the machine.

English TECHNICAL DATA | SPECIFIED CONDITIONS OF USE | SAFETY INSTRUCTIONS | MAINTENANCE | GUARANTEE | EC-DECLARATION OF CONFORMITY ____ 28

Français CARACTÉRISTIQUES TECHNIQUES | UTILISATION CONFORME À LA DESTINATION | CONSIGNES DE SÉCURITÉ | ENTRETIEN | GARANTIE | DÉCLARATION DE CONFORMITÉ CE ____ 33

DE Montage SI Montaža

GB Assembly HR Montaža

FR Montage BG Монтаж

IT Montaggio RO Montaj

NL Montage BA Montaža

CZ Montáž

SK Montáž

HU Szerelés

1

2-4

DE montage

SI Montaža

GB Assembly

HR Montaža

FR Montage

BG Монтаж

IT Montaggio

RO Montaj

NL Montage

BA Montaža

CZ Montáž

SK Montáž

HU Szerelés

508 VARI-S #94153 | 512 ES VARI #95360

1	DE montage	SI Montaža
	GB Assembly	HR Montaža
	FR Montage	BG Монтаж
	IT Montaggio	RO Montaj
	NL Montage	BA Montaža
	CZ Montáž
	SK Montáž
	HU Szerelés

508 VARI-S #94153 | 512 ES VARI #95360

DE Ölstand kontrollieren

GB Oil level inspection

GB Check the oil level whenever the appliance is to be put into operation. Add engine oil if necessary. Check the oil level whenever the appliance is to be put into operation. Add engine oil if necessary.

2

2

DE Ölstand kontrollierenGB Oil level inspectionFR Contrôle du niveau d'huileIT Controllo livello d'olioNL Oliepeil controlerenCZ Kontrola stavu olejeSK Kontrola stavu olejaHU Olajszint ellenőrzése

SI Kontrola stanja oljaHR Kontrola razine uljaBG Контрол на състоянието на маслотоRO Verifi carea stării uleiuluiBA Kontrola nivoa ulja

508 VARI-S #94153 | 512 ES VARI #95360

DE	Tanken	SI	Dolivanje goriva
GB	Fuel tank fi lling	HR	Dopunjavanje goriva
FR	Ravitaillement	BG	Зареждане
IT	Rabbocco	RO	Alimentarea cu combustibil
NL	Tanken	BA	Dopunjavanje goriva
CZ	Tankování
SK	Tankovanie
HU	Tankolás

508 VARI-S #94153 | 512 ES VARI #95360

	DE	Schnitthöhe einstellen	SI	Nastavitev višine košnje
	GB	Cutting height setting	HR	Podešavanje visine sječenja
	FR	Réglage de la hauteur de coupe	BG	Pegyliранe na vincochinata na sechene
	IT	Impostazione dell'altezza di taglio
	NL	Instelling van de maaihoogte	RO	Reglarea înăltimii de tăiere
	CZ	Nastavení výšky sečení	BA	Podešavanje visine sječenja
	SK	Nastavenie výšky kosenia
	HU	Kaszálási magasság beállítása

508 VARI-S #94153 | 512 ES VARI #95360

DE mähen - mulchen

GB mow - mulching

FR tondre - paillage

2

DE Mähen - SammelnGB mow - collectFR tondre - collecterIT falciare - raccogliereNL maaien - verzamelenCZ sekat - sbíratSK kosit' - zbierat'HU szénaboglya - gyűjt

SI kosite - zbiratiHR kositi - prikupitiBG koся - събиране наRO cosi - colectaBA kositi - prikupiti

508 VARI-S #94153 | 512 ES VARI #95360

DE mähanweisungen

GB Cutting instructions

FR Consignes de tonte

512 ES VARI #95360

GB If the appliance cannot be put into operation by electric starting, start it using the bowden starter. The battery is automatically charged during the operation.

3
START

4

5

STOP

2,2 km/h 3,4 km/h

5	DE Reinigung / Wartung	SI Čiščenje / Vzdrževanje
	GB Cleaning / Maintenance	HR Čiščenje / Održavanje
	FR Nettoyage / Entretien	BG Чистене / Поддръжка
	IT Pulizia / Manutenzione	RO Curățare / Întreținere
	NL Schoonmaken / Onderhoud	BA Čiščenje / Održavanje
	CZ Čištění / Údržba
	SK Čistenie / Údrzba
	HU Tisztítás / Karbantartás

508 VARI-S #94153 | 512 ES VARI #95360

DE Reinigung / Wartung SI Čiščenje / Vzdrževanje
GB Cleaning / Maintenance HR Čišćenje / Održavanje
FR Nettoyage / Entretien BG Чистене / Поддръжка
IT Pulizia / Manutenzione RO Curățare / Întreținere
NL Schoonmaken / Onderhoud BA Čišćenje / Održavanje
cz Čištění / Údržba
SK Čistenie / Údrzba
HU Tisztítás / Karbantartás

508 VARI-S #94153 | 512 ES VARI #95360

5	DE Zündkerze	SI Vžigalna svečka
	GB Spark plug	HR Svijeća za paljenje
	FR Bougie d'allumage	BG Запалваща свещ
	IT Candela d'accensione	RO Bujie
	NL Bougie	BA Svijeća za paljenje
	CZ Zapalovací svíčka
	SK Zapalovacia sviečka
	HU Gyújtógyertya

508 VARI-S #94153 | 512 ES VARI #95360

DE Ölwechsel

GB Oil change

508 VARI-S #94153 | 512 ES VARI #95360

5	DE Luftfi Iter	SI Zračni fi Iter
	GB Air fi Iter	HR Zračni fi ltar
	FR Filtre à air	BG Въздушен филтър
	IT Filtro d'aria	RO Filtru de aer
	NL Luchtfi Iter	BA Zračni fi ltar
	CZ Vzduchový fi ltr
	SK Vzduchový fi Iter
	HU Levegőszűrő

508 VARI-S #94153 | 512 ES VARI #95360

DE Bowdenzüge

GB Bowden cables

FR Câbles Bowden

IT Funicelle Bowden

NL Bowdentrekken

CZ bovdenová lanka

SK bovdenové lanká

HU bowden kábel

SI Vžigalna vrvica

HR Startno uže

GB The motor does not start

GB Automatic feed is not working

5	DE Batterie	SI Battery
	GB Battery	HR Baterija
	FR Batterie	BG батерия
	IT Batteria	RO Acumulator
	NL Batterij	BA Baterija
	CZ Batterie
	SK Batéria
	HU Akkumulátor

512 ES VARI #95360

Technische Daten

Benzin-Rasenmäher Big Wheeler....508 VARI-S....512 ES VARI

Fuel....Unleaded petrol/E10....Unleaded petrol/E10

Weight....35,4 kg....42,7 kg

Dimensions....1550 x 560 x 950 mm....1550 x 560 x 950 mm

Noise and Vibration Information

Sound pressure level L _pA¹⁾ 83,5 dB (A) 83,7 dB (A)

Sound power level L 96 dB (A) 96 dB (A)

Wear ear protectors!

Vibration emission value a_b²¹ 6,9 m/s ² 6,9 m/s ²

¹⁾ Uncertainty K=3 dB (A), ²⁾ Uncertainty K=1,5 m/s ²

Warning: The vibration emission level will vary because of the ways in which a power tool can be used and may increase above the level given in this information sheet.

The vibration emission level may be used to compare one tool with another.

It may be used for a preliminary assessment of exposure.

An accurate estimate of the vibratory load should also take into account the times when the tool is shut down or when it is running but not actually in use. This may significantly reduce the vibratory load over the total working period.

Identify additional safety measures to protect the operator from the effects of vibration such as: maintain the tool and the accessories, keep the hands warm, organisation of work patterns.

Read and understand the operating instructions before using the appliance. Familiarise with the

control elements and how to use the appliance properly. Abide by all the safety measures stated in the service manual. Act responsibly toward third parties.

The operator is responsible for accidents or risks to third parties.

In case of any doubts about connection and operation refer please to our customer center

delivered items

1 Mulching wedge

2 Side ejection

3 Collection bag

4 Spark plug wrench

5 Bowden clamps

6 Wheels/screens including star screw/U-washer

7 Screws

8 panel

Specified Conditions Of Use

The mower has been designed for cutting grass and grass areas with a maximum climb of 20° in private gardens around the house and in garden colonies.

Do not use this product in any other way as stated for normal use. Not observing general regulations in force and instructions from this manual does not make the manufacturer liable for damages.

⚠️ Use the appliance only outside, never use it in confined and bad ventilated areas.

The mower must not be used for cutting bushes, hedges and thickets, for cutting and mulching creepers or lawns on roofs or in balcony boxes. The mower must also not be used as a crusher for mulching tree cuttings and hedges or levelling any terrain roughness.

Requirements for operating staff

The operating staff must carefully read the Operating Instructions before using the appliance.

This device is not intended for use by persons (including children) with limited physical, sensory or mental capabilities or without the necessary lack experience or knowledge unless they are supervised by a person who is responsible for their safety or were instructed by that person in how to use the device.

Qualifi cation: Apart from the detailed instructions by a professional, no special qualifi cation is necessary for appliance using.

Minimum age: Persons over 16 years of age can only work on the appliance. An exception includes youngsters trained in order to reach knowledge under supervision of the trainer during occupational education.

Local regulations may stipulate the minimum age of the user.

Training: Using the appliance only requires corresponding training by a professional or the Operating Instructions. No special training is necessary.

Emergency procedure

Danger of injury!

Never put your hands and feet near the rotating parts. Keep a distance from the ejection opening at all times.

Danger of burns!

Some parts of the appliance get too hot when the appliance is operated. Do not touch any hot parts, e.g. engine and muffler.

Conduct a fi rst-aid procedure adequate to the injury and summon qualified medical attendance as quickly as possible. Protect the injured person from further harm and calm them down. For the sake of eventual accident, in accordance with DIN 13164, a workplace has to be fitted with a fi rst-aid kit. It is essential to replace any used material in the fi rst-aid kit immediately after it has been used. If you seek help, state the following pieces of information:

1. Accident site
2. Accident type
3. Number of injured persons
4. Injury type(s)

Symbols

Caution!

Read the Operating Instructions

Wear ear protectors! Wear eye protective goggles!

Caution - hot surface! Danger of burns!

Warning against bounced subjects

Keep distance of persons! Observe to keep out of dangerous zone

Switch the engine off and remove the socket plug before any work on the engine.

Keep a sufficient distance from the cutting knife when operating the appliance.

Caution, risk of drawing-in

Risk of explosion Refuel the engine only when switched off.

Risk of poisoning! Use the appliance only outside, never use it in confined and bad ventilated areas.

Prohibited smoking and open fire using.

Keep the machine out of reach of children.

Do not use the machine in wet or moist conditions. Do not expose the machine to rain.

Wear safety cut through resistant shoes with safety sole and steel toe!

Warning against hot surfaces!

Warning against dangerous voltage

Protect against humidity

This side up

Safety Instructions

WARNING

Read all safety warnings and all instructions, including those given in the accompanying brochure.

Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. Save all warnings and instructions for future reference.

Keep children and other persons including animals in a safe distance when using the appliance. Minimum safe distance is 5 m.

Wear personal protective equipment.

Wear solid shoes and long trousers. Never use the appliance when barefooted or in light sandals.

Wear protective gloves if necessary.

Use the appliance in broad daylight or in a well-lit environment.

Check carefully the terrain where the appliance is being used and remove any items that could get caught and be thrown away.

Fuel is highly flammable.

Keep the fuel in suitable containers only.

The appliance may only be refuelled outdoors and not near open fire or burning cigarettes.

Refuel before starting the appliance. If the engine is running or still hot, it must not be refuelled or the tank cover opened.

Make sure the fuel does not overflow. If the fuel overflows, the engine must not be started. Remove any dirt from the appliance and prevent any attempt at ignition until fuel fumes have evaporated.

The engine must necessarily be filled with engine oil before being put into operation for the first time.

Check the oil level whenever the appliance is to be put into operation. Add engine oil if necessary.

Carry out a visual inspection before any use to make sure the appliance, especially the cutting tools, fastening parts and the entire cutting unit are not damaged.

⚠️ Check all screw and plug-in connections and protective equipment if firm and tightened properly and whether all moving parts are running smooth whenever the appliance is to be put into operation.

The protective equipment on the appliance is strictly prohibited to be disassembled, changed, used in conflict with the designation and it is prohibited to attach any protective equipment of other manufacturers.

The appliance must not be used if damaged or safety equipment is defective. Replace any worn-out and damaged parts.

Do not start the engine before your feet are in a safe distance from the cutting tools.

Do not incline the appliance when being started.

Do not start the appliance when you are standing in front of the ejection opening.

Make sure your posture is safe, especially on slopes. Do not cut on too steep slopes. Be particularly careful when changing travelling direction on slopes.

Pay maximum attention when turning around and pulling the appliance to you.

Switch the mower off whenever carrying or inclining it or when being outside a grass area. Wait until all rotating parts have stopped.

If an undesirable item is encountered or the appliance starts vibrating, the appliance must be switched off and the socket plug removed. Check whether the appliance is not damaged. Repair any damage.

Switch the appliance immediately off after finishing your work.

Do not store the appliance in enclosed places just after being switched off but let it cool down outdoors instead.

Never store the appliance with petrol in the tank inside a building where petrol fumes may potentially get in touch with open fire or sparks.

When the appliance is not going to be used for a long time, store it with an empty tank.

Replace any defective muffler.

Do not change the controlled engine setting and do not rev the engine up.

maintenance

Switch the engine off and remove the socket plug before any work on the engine. Wait until all rotating parts have stopped and ambiance has cooled down.

Keep the appliance, especially the tank and engine, clean at all times. Clean the ejection opening and cover at regular intervals.

Apply environment-friendly oil to all moving parts.

Check the collection bag at regular intervals for any wear and aging.

Refer all servicing to qualified service personnel.

Use only original accessories and original spare parts.

Only a regularly maintained and treated appliance can serve as a satisfactory aid. Insufficient maintenance and care can lead to unforeseen accidents and injuries.

Guarantee

The guarantee solely covers inadequacies caused by material defect or manufacturing defect. Original payment voucher with the sales date needs to be submitted for any claim in the guarantee period.

The guarantee does not cover any unauthorised use such as appliance overloading, use of violence, damage as a result of any unauthorised interference or caused by foreign items. Failing to follow the operating and assembly instructions and common wear are also not included in the guarantee.

Service

Do you have any technical questions? Any claim? Do you need any spare parts or operating instructions? We will quickly help you and without needles bureaucracy at our web pages at www.guede.com in the Servicing part. Please help us be able to help you. In order to identify your device in case of claim we need the serial No., product No. and year of production. All this data can be found on the type label. Please enter it here for future reference:

Serial No.:

Art. No:

Year of production:

Inspection and maintenance plan

Regular servicing period Before		any start-up	After 1 month	After 3 months	After 6 months	After 12 months	After 24 months
			5 Hours of operation	25 Hours of operation	50 Hours of operation	100 Hours of operation	250 Hours of operation
Engine oil (10W-40)	Inspection	√
	Change		√		√
Air filter Inspection		√
Spark plug Inspection						√
Battery Inspection					√

Provide appropriate servicing upon the earlier of the following: in the given month or after the specified hours of operation have expired.

Defects searching

Defect	Causes	Measure
The motor does not start	Start-Stop lever has not been pressed Press the Start-Stop lever
	Primary pump has not been used Use the primary pump
	Lack of fuel Add some fuel
	Bowden cables are too long Adjust the Bowden cables using the coupling nut.
	Wrong fuel, storing without petrol tank being drained	Drain the fuel tank and carburettor.Add fresh petrol.
	Sooted spark plug (carbon residues on electrodes), electrodes distance too big	Clean the spark plug, check the plug thermal value, possibly change the plug, set the electrodes distance to 0.6-0.7 mm
	The spark plug is wet from petrol (oversaturated engine).	Dry the spark plug out and refit it.
Grass is not collected	Blocked channelFull collection bagToo wet grass	Clean the ejection channelEmpty the collection bagCut in dry weather
Automatic feed is not working	Bowden cables are too long Adjust the Bowden cables using the coupling nut.

Brandstof......Loodvrije benzine/E10......Loodvrije benzine/E10

EC-Declaration of Conformity

We, hereby declare the conception and construction of the below mentioned appliances correspond - at the type of construction being launched - to appropriate basic safety and hygienic requirements of EC Directives.

In case of any change to the appliance not discussed with us the Declaration expires.