1. Introducció
This manual provides essential information for the safe operation, maintenance, and troubleshooting of your Central Pneumatic 2.5 Horsepower, 21 Gallon, 125 PSI Cast Iron Vertical Air Compressor. Please read this manual thoroughly before operating the compressor to ensure proper use and to prevent injury or damage.
This vertical air compressor is designed to power various air tools and inflate tires in a home shop environment. It features a built-in universal quick-connect coupler for easy hose connection and is equipped with wheels and rubber foot stabilizers for portability and reduced vibration.
2. Informació de seguretat
ADVERTÈNCIA: llegiu totes les instruccions i advertències de seguretat. El no seguir les advertències i instruccions pot provocar descàrregues elèctriques, incendis i/o lesions greus.
Normes generals de seguretat
- Always wear ANSI-approved safety goggles during setup and operation.
- No feu funcionar el compressor en aigua humida o damp condicions o en presència de líquids o gasos inflamables.
- Assegureu-vos que el compressor estigui col·locat sobre una superfície estable i anivellada.
- Mantenir els nens i els espectadors allunyats de la zona d'operacions.
- Desconnecteu l'alimentació abans de realitzar qualsevol manteniment o ajust.
- No supereu la pressió màxima de funcionament de 125 PSI.
- Regularly inspect the air tank for rust or damage. Do not use if damaged.
- Use only accessories rated for the compressor's pressure.
3. Components i característiques
Familiarize yourself with the key components of your air compressor:
- Motor: Heavy duty 2.5 horsepower rated single capacitor motor with thermal overload protection.
- Compressor Pump: Long-life oil lubricated compressor with precision machined cast-iron sleeve.
- Tanc d'aire: 21 Gallon vertical tank.
- Manòmetres: For monitoring tank and regulated pressure.
- Regulador: To adjust output air pressure.
- Quick Coupler: Built-in universal quick coupler for hose connection.
- Rodes: 6-inch wheels for portability.
- Foot Stabilizers: Rubber foot stabilizers to reduce vibration.
- Indicador de nivell d'oli: Window for easy oil level monitoring.

Imatge 3.1: Frontal view of the Central Pneumatic 2.5 HP, 21 Gallon Air Compressor, showing the tank, motor, gauges, and wheels.

Imatge 3.2: Lateral view of the Central Pneumatic Air Compressor, highlighting the motor and handle assembly.
4. Configuració
Desembalatge i muntatge
- Traieu amb cura tots els components de l'embalatge.
- Attach the wheel kit and ergonomic handle as per the included assembly diagram (if not pre-assembled).
- Ensure the rubber foot stabilizers are securely in place.
Initial Oil Fill/Check
The compressor is oil-lubricated. Before first use, or if the oil level is low, add or check the oil:
- Locate the oil fill cap and oil level indicator window.
- Ensure the oil level is within the recommended range on the indicator.
- If adding oil, use only compressor oil (not motor oil).
Connexió elèctrica
- Connect the compressor to a grounded electrical outlet.
- Ensure the circuit can handle the compressor's ampera (14 Amps). Avoid using long, thin extension cords.
5. Instruccions de funcionament
Engegar el compressor
- Assegureu-vos que la vàlvula de drenatge a la part inferior del dipòsit estigui tancada.
- Plug in the compressor.
- Turn the power switch to the "ON" position. The compressor will begin to fill the tank.
- Allow the compressor to reach its maximum pressure (125 PSI) and shut off automatically. This indicates the pressure switch is functioning correctly.
Connecting Air Tools
- Attach your air hose to the built-in quick coupler.
- Connect your desired air tool to the other end of the hose.
- Adjust the output pressure using the regulator knob to match the requirements of your air tool. Monitor the regulated pressure gauge.
Tancant
- Turn the power switch to the "OFF" position.
- Desconnecteu la mànega d'aire i les eines.
- Slowly open the drain valve at the bottom of the tank to release any condensed moisture. Close the valve once all moisture and air have been expelled.
6. Manteniment
Manteniment diari
- Dipòsit de drenatge: Drain moisture from the air tank daily or after each use to prevent rust and corrosion.
- Comprovar el nivell d'oli: Verify the oil level using the oil level indicator window. Add oil if necessary.
Manteniment setmanal/mensual
- Filtre d'aire net: Inspect and clean the air filter. Replace if damaged or excessively dirty.
- Inspeccioneu les mànegues i les connexions: Check for leaks, cracks, or damage. Replace any faulty components.
- Comprovació dels elements de fixació: Ensure all nuts, bolts, and fittings are tight.
Canvi d'oli
Change the compressor oil after the first 20 hours of operation, then every 200 hours or three months, whichever comes first. Use only non-detergent compressor oil.
7. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Compressor does not start or trips breaker. | Insufficient power supply; Thermal overload activated; Faulty switch. | Assegureu-vos el volum adequattage i amperage circuit. Allow motor to cool. Check power cord. Consult qualified technician if problem persists. |
| Air leaks from tank or fittings. | Loose fittings; Damaged seals/hoses; Open drain valve. | Tighten all connections. Replace damaged parts. Close drain valve. |
| El compressor funciona contínuament o fa cicles massa freqüents. | Air leak; Pressure switch malfunction; Excessive air demand. | Check for and repair air leaks. Consult technician for pressure switch. Reduce air tool usage or use a larger compressor. |
| Baixa pressió d'aire a la sortida. | Regulator set too low; Clogged air filter; Air leak. | Adjust regulator to desired pressure. Clean or replace air filter. Check for and repair air leaks. |
8. Especificacions

Image 8.1: Dimensional drawing of the Central Pneumatic Air Compressor, showing height, length, and width.
| Especificació | Valor |
|---|---|
| Nom del model | ha67847 |
| Cavalls de força | 2.5 CV |
| Volum del dipòsit | 21 galons |
| Pressió màxima | 125 PSI |
| Air Flow Capacity (CFM @ 40 PSI) | 5.8 CFM |
| Air Flow Capacity (CFM @ 90 PSI) | 4.7 CFM |
| Ampedat | 14 Amps |
| Velocitat màxima | 3400 RPM |
| Alçada del producte | 43.3 polzades. |
| Longitud del producte | 23 polzades. |
| Amplada del producte | 17 polzades. |
| Pes del producte | 96 lliures. |
| UPC | 792363616935 |
9. Garantia i Suport
For warranty information and customer support, please refer to the documentation included with your purchase or contact Central Pneumatic customer service directly. Keep your purchase receipt for warranty claims.
Manufacturer: Central Pneumatic





