Introducción
This instruction manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your Generac 6821 1.5-inch Clean Water Pump. Please read this manual thoroughly before assembly, operation, or maintenance to ensure proper use and to prevent injury or damage.
The Generac 6821 is a robust, gas-powered clean water pump designed for various water transfer applications, featuring a 79cc engine and a comprehensive accessory kit for immediate use.
Información de seguridad
ADVERTENCIA: El incumplimiento de estas instrucciones de seguridad podría provocar lesiones graves o la muerte.
- Always read and understand the entire manual before operating the pump.
- Utilice la bomba en un área bien ventilada para evitar la intoxicación por monóxido de carbono. Nunca la utilice en interiores.
- Mantenga a los niños y a las mascotas alejados del área de operación.
- Do not operate the pump with damaged hoses, connections, or if any parts are missing or broken.
- Use equipo de protección personal (EPP) adecuado, que incluya protección para los ojos y guantes.
- Ensure the pump is on a stable, level surface during operation.
- Do not refuel the engine while it is running or hot. Allow it to cool before adding fuel.
- Keep flammable materials away from the pump during operation.
Contenido del paquete
Verify that all items are present before beginning assembly or operation:
- Generac 6821 1.5-inch Clean Water Pump
- 10-foot Suction Hose
- 25-foot Discharge Hose
- Colador
- Aceite de motor
- Embudo de aceite
- Handle Kit (and potentially wheel kit, depending on specific model variant)
- Manual del propietario (este documento)
Configuración
1. Desembalaje e inspección
Carefully remove all components from the packaging. Inspect for any shipping damage. If any parts are damaged or missing, do not operate the pump and contact customer support.
2. Instalación del mango
Attach the carrying handle to the pump frame using the provided hardware. Ensure it is securely fastened for safe transport.

Image: The Generac 6821 Clean Water Pump shown with its orange handle securely attached to the top of the engine frame, ready for transport.
3. Agregue aceite de motor
The engine is shipped without oil. Before starting, add the supplied engine oil using the oil funnel. Locate the oil fill cap/dipstick, remove it, and slowly pour oil until it reaches the upper mark on the dipstick. Do not overfill.
4. Añadir combustible
Fill the fuel tank with fresh, unleaded gasoline (minimum 87 octane). Do not use E85 fuel. Ensure the fuel cap is securely tightened after filling.

Imagen: Una vista de arriba hacia abajo view of the Generac 6821 pump, highlighting the orange fuel cap on the engine and the black pull-start handle.
5. Conecte las mangueras
Connect the suction hose to the pump's inlet port (often color-coded, e.g., blue for inlet). Attach the strainer to the end of the suction hose. Connect the discharge hose to the pump's outlet port (often color-coded, e.g., green for outlet). Ensure all connections are tight to prevent air leaks, which can affect priming and pump performance.

Imagen: Un lado view of the Generac 6821 pump, clearly showing the green-colored discharge port where the outlet hose connects.

Imagen: Un frente view of the Generac 6821 pump, highlighting the blue-colored suction port where the inlet hose connects.
6. Cebado de la bomba
The Generac 6821 features a custom funnel design for quick and easy priming. Remove the prime cap located on top of the pump housing. Fill the pump housing with clean water until it overflows. Replace the prime cap securely. The pump must be primed before each use to ensure it can draw water effectively.

Imagen: Un primer plano view of the orange cap labeled 'Prime' on the top of the pump housing, indicating the fill point for priming the pump.
Instrucciones de funcionamiento
1. Arrancar el motor
- Ensure the pump is properly primed and all hoses are connected.
- Place the suction hose with the strainer into the water source.
- Gire la válvula de combustible a la posición “ON”.
- Mueva la palanca del estrangulador a la posición 'CHOKE' (si el motor está frío).
- Gire el interruptor del motor a la posición 'ON'.
- Tire de la manija de arranque de retroceso con firmeza y suavidad hasta que el motor arranque.
- Una vez que el motor arranque, mueva gradualmente la palanca del estrangulador a la posición 'RUN' (Ejecutar).
2. Durante el funcionamiento
Monitor the pump for consistent water flow and listen for any unusual noises. Ensure the suction hose remains submerged in water to prevent the pump from running dry, which can cause damage.
3. Detener el motor
- Gire el interruptor del motor a la posición “OFF”.
- Gire la válvula de combustible a la posición “OFF”.
- Allow the engine to cool before handling or storing.
Mantenimiento
El mantenimiento regular garantiza un rendimiento óptimo y prolonga la vida útil de su bomba.
Aceite de motor
Revise el nivel de aceite del motor antes de cada uso. Cambie el aceite después de las primeras 5 horas de funcionamiento y, posteriormente, cada 50 horas o anualmente, lo que ocurra primero.
Filtro de aire
Inspect the air filter regularly and clean or replace it as needed, especially when operating in dusty conditions.
Bujía
Inspect the spark plug annually or every 100 hours. Clean or replace if necessary, ensuring the correct gap.
Pump Housing and Impeller
Periodically inspect the pump housing and impeller for debris or wear. Clean out any blockages to maintain efficient flow.
Almacenamiento
For long-term storage, drain the fuel tank and carburetor. Remove the spark plug and pour a small amount of engine oil into the cylinder, then pull the recoil starter a few times to distribute the oil. Clean the exterior of the pump and store it in a dry, protected area.
Solución de problemas
| Problema | Posible causa | Solución |
|---|---|---|
| El motor no arranca | No fuel, old fuel, low oil, choke position incorrect, engine switch off, fouled spark plug | Add fresh fuel, check oil level, adjust choke, turn engine switch ON, clean/replace spark plug |
| Pump not moving water | Not primed, air leak in suction hose, clogged strainer, suction hose not submerged | Prime pump, check hose connections, clean strainer, ensure suction hose is fully submerged |
| Flujo de agua reducido | Partial blockage in hoses or impeller, air leak, worn impeller | Inspect and clear blockages, check hose connections, contact service for impeller inspection |
| El motor funciona de forma irregular | Stale fuel, dirty air filter, incorrect spark plug gap | Drain and replace fuel, clean/replace air filter, adjust/replace spark plug |
Presupuesto
- Marca: Generac
- Número de modelo: 6821
- Fuente de energía: Accionado a gas
- Motor: Generac 79cc
- Dimensiones del producto (L x An x Al): 17.2" x 12.1" x 16.5"
- Peso del artículo: 44 libras
- Tasa de flujo máxima: 80 galones por minuto
- Altura máxima de elevación: 26 pies
- Material: Stainless Steel (pump components)
- Código postal: 696471068214

Image: The Generac 6821 Clean Water Pump with its key dimensions (length, width, height) clearly indicated in inches.
Garantía
This Generac 6821 Clean Water Pump is covered by a Garantía del fabricante de 1 años from the date of purchase. Please retain your proof of purchase for warranty claims. The warranty covers defects in materials and workmanship under normal use. It does not cover damage due to misuse, neglect, unauthorized modifications, or normal wear and tear.
Apoyo
For technical assistance, parts, or warranty inquiries, please contact Generac customer support. Refer to the official Generac websitio o su documentación de compra para obtener la información de contacto más actualizada.
Recursos en línea: www.generac.com