1. Introducción
Thank you for choosing the Lehmann LGALM-2646 Gasoline Lawn Mower. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your new lawn mower. Please read this manual thoroughly before operating the machine and keep it for future reference.
1.1 Instrucciones de seguridad
Observe siempre las precauciones básicas de seguridad para reducir el riesgo de incendio, descarga eléctrica y lesiones personales. El incumplimiento de estas instrucciones puede provocar lesiones graves o la muerte.
- Lea y comprenda todas las instrucciones antes de operar la cortadora de césped.
- Mantenga a los niños y a otras personas alejadas del área de operación.
- Use equipo de protección personal (EPP) adecuado, que incluya protección para los ojos, protección auditiva y calzado resistente.
- No utilice la cortadora de césped sobre césped mojado o bajo la lluvia.
- Ensure the engine is off and the spark plug cap is disconnected before performing any maintenance or clearing blockages.
- Reposte en un área bien ventilada, con el motor apagado y fresco. No fume mientras reposta.
- Inspect the area to be mowed and remove any objects that could be thrown by the blades.
2. Producto terminadoview
Familiarize yourself with the components of your Lehmann LGALM-2646 lawn mower.

Figura 2.1: En general view of the Lehmann LGALM-2646 Gasoline Lawn Mower, including the grass collection bag, two spare blades, and a bottle of engine oil.

Figura 2.2: detallada view of the handlebar controls. (1) Engine Stop Lever, (2) Drive Lever.
2.1 componentes clave
- Motor: 146 cm3, 3.5 HP gasoline engine.
- Plataforma de corte: Robust steel housing for durability.
- Cuchillas: Rotary cutting blades.
- Ruedas: Equipped with rear-wheel drive for improved maneuverability.
- Manillar: Features a folding function for compact storage.
- Bolsa de recolección de césped: Detachable bag for collecting grass clippings.
- Palanca de ajuste de altura de corte: Centralized lever for adjusting cutting height.
3. Configuración
3.1 Asamblea
The lawn mower requires minimal assembly. Follow these steps:
- Desempaque todos los componentes de la caja.
- Attach the handlebar to the main unit using the provided bolts and knobs. Ensure the handle is securely locked in the operating position.
- Assemble the grass collection bag if it came disassembled.
- Mount the grass collection bag onto the rear of the mower.
3.2 Comprobaciones iniciales
Before first use, perform the following checks:
- Aceite de motor: Check the engine oil level. Fill with appropriate 4-stroke engine oil if necessary (refer to engine manual for oil type and capacity).
- Combustible: Llene el tanque de combustible con gasolina fresca sin plomo. No lo llene demasiado.
- Bujía: Ensure the spark plug cap is securely connected.
- Cuchillas: Inspect the cutting blade for sharpness and damage. Ensure it is securely fastened.
- Sujetadores: Compruebe que todas las tuercas, pernos y tornillos estén bien apretados.
4. Operación
4.1 Arranque del motor
Follow these steps to start your lawn mower:

Figure 4.1: Starting the engine by pulling the recoil starter cord.
- Ensure the lawn mower is on a flat, level surface.
- Press the primer bulb (if equipped) 3-5 times until fuel is visible.
- Hold the engine stop lever (1 in Figure 2.2) firmly against the handlebar. The engine will not start unless this lever is held.
- Pull the recoil starter cord with a swift, continuous motion until the engine starts. Do not let the cord snap back.
- Once the engine starts, release the recoil starter cord slowly.
- To engage the rear-wheel drive, hold the drive lever (2 in Figure 2.2) against the handlebar. Release it to disengage.
4.2 Siega
For best results, mow when the grass is dry. Overlap cutting swaths slightly to ensure even coverage.

Figure 4.2: The lawn mower in operation on a lawn.
4.3 Ajuste de la altura de corte
The Lehmann LGALM-2646 features a 7-stage central cutting height adjustment, ranging from 25 mm to 70 mm.
- Apague el motor y espere hasta que la cuchilla se detenga por completo.
- Localice la palanca de ajuste de altura de corte, generalmente cerca de una de las ruedas traseras.
- Tire de la palanca hacia afuera y muévala hasta la altura deseada. Los ajustes suelen estar numerados o indicados con muescas.
- Asegúrese de que todas las ruedas estén ajustadas a la misma altura para un corte uniforme.
5. Mantenimiento
Regular maintenance ensures optimal performance and extends the life of your lawn mower. Always disconnect the spark plug cap before performing any maintenance.
5.1 Limpieza
Clean the mower after each use, especially the cutting deck, to prevent grass buildup and corrosion.

Figure 5.1: Area under the cutting deck that requires regular cleaning to prevent grass buildup and maintain performance.
- Remove the grass collection bag and empty it.
- Tilt the mower onto its side (with the carburetor facing upwards to prevent oil leakage) and scrape off any accumulated grass clippings from the underside of the deck.
- Limpiar el exterior con adamp Paño. No utilice una hidrolavadora directamente sobre el motor ni los componentes eléctricos.

Figure 5.2: The robust steel housing is designed to resist corrosion, contributing to the mower's longevity.
5.2 Cuidado de la cuchilla
A sharp blade ensures a clean cut and healthy lawn. Inspect the blade regularly for sharpness and damage.
- If the blade is dull, it can be sharpened by a qualified service technician or replaced.
- If the blade is bent or damaged, it must be replaced immediately to prevent vibration and potential injury.
5.3 Almacenamiento
For long-term storage (over 30 days), prepare the mower as follows:
- Vacíe el tanque de combustible o agregue un estabilizador de combustible. Haga funcionar el motor hasta que se detenga para que se consuma todo el combustible del carburador.
- Cambie el aceite del motor.
- Limpie completamente el cortacésped.
- Store in a dry, well-ventilated area, away from direct sunlight and extreme temperatures. The folding handle allows for more compact storage.
6. Solución de problemas
Esta sección proporciona soluciones a problemas comunes que puede encontrar.
| Problema | Posible causa | Solución |
|---|---|---|
| El motor no arranca | No fuel; Spark plug cap loose; Engine stop lever not held; Stale fuel; Clogged fuel filter; Faulty spark plug. | Add fresh fuel; Connect spark plug cap securely; Hold engine stop lever; Drain and refill with fresh fuel; Clean/replace fuel filter; Replace spark plug. |
| El motor funciona de forma irregular o se cala | Dirty air filter; Stale fuel; Clogged carburetor; Incorrect oil level. | Clean/replace air filter; Drain and refill with fresh fuel; Clean carburetor (professional service recommended); Adjust oil level. |
| Corte desigual | Dull or bent blade; Wheels set to different heights; Uneven terrain. | Sharpen or replace blade; Ensure all wheels are at the same cutting height; Mow on level ground where possible. |
| Vibración excesiva | Bent or unbalanced blade; Loose blade bolt; Debris caught in blade area. | Inspect and replace blade if bent; Tighten blade bolt; Clear debris from under the deck. |
7. Especificaciones
Technical data for the Lehmann LGALM-2646 Gasoline Lawn Mower.
| Característica | Detalle |
|---|---|
| Número de modelo | LGALM-2646 |
| Cilindrada del motor | 146 cm³ |
| Potencia del motor | 3.5 CV |
| Tipo de unidad | Rear-Wheel Drive (Gasoline-powered) |
| Ancho de corte | 46 centímetros |
| Ajuste de altura de corte | 7-stage central adjustment |
| Rango de altura de corte | 25 - 70 mm |
| Material de la carcasa | Acero robusto |
| Manillar | Función de plegado |
| Peso del artículo | 29 kilogramos |
| Dimensiones del producto (Pr. x An. x Al.) | 150 x 52 x 112 cm |
| Color | Negro / Rojo |
8. Garantía y soporte
For warranty information or technical support, please contact Lehmann customer service. Keep your purchase receipt as proof of purchase.
For further assistance, visit the official Lehmann websitio o póngase en contacto con su distribuidor local.
Fabricante: Lehmann
Marca: LEHMANN





