VEVOR Vacuum Pump Operating Manual

Introduction

Welcome to the user manual for your VEVOR vacuum pump. This pump is a versatile tool suitable for a wide range of applications, including HVAC vacuuming, epoxy and silicone degassing, wood stabilization, and creating milking machines. It is also commonly used in medical appliances, printing machinery, vacuum packing, gas analysis, and hot-forming plastics. Its powerful and reliable performance makes it valuable for professionals and DIY enthusiasts.

The vacuum pump operates by creating a vacuum or negative pressure to remove air and other gases from an enclosed space. This process is useful for reducing air bubbles in liquids, evacuating HVAC systems, stabilizing wood, and more.

This manual is designed to help you understand how to operate and maintain your vacuum pump safely and effectively, covering key features, components, and important safety guidelines.

Please read this manual carefully before operating. Proper use and maintenance ensure reliable service and desired results. For questions, consult the manual or contact customer support.

WEEE Directive Information: This product is subject to European Directive 2012/19/EU. The symbol of a wheelie bin crossed through indicates separate refuse collection is required in the European Union for the product and its accessories. Products marked with this symbol must not be discarded with normal domestic waste but taken to a collection point for recycling electrical and electronic devices.

Safety Precautions

Warning about Potential Hazards and How to Avoid Them

Improper use of the vacuum pump can pose hazards, including electrical shock, fire, or explosion, especially when pumping flammable, explosive, poisonous, or corrosive gases. Always read and follow the instructions in this manual before use.

Instructions on How to Handle the Vacuum Pump Safely

• Never operate the pump without oil; this can cause damage and create hazards.
• Ensure the pumped gas temperature does not exceed 80°C, and the environment temperature is between 5°C and 60°C to prevent damage and ensure safe operation.
• Do not use the vacuum pump as a compression or conveyer pump, as this can cause damage and create hazards.
• The operating voltage is between 192 to 248V, 50Hz. Use a grounded outlet to prevent electrical shock.
• When unplugging, pull the plug, not the cord, to avoid damage.
• Keep the electrical cord free from shop equipment and do not let the pump hang by the cord.
• Do not use a damaged plug or outlet, as this can cause electrical shock or fire.
• Do not plug or unplug the unit with wet hands, as this can cause electrical shock.
• Avoid plugging in, unplugging, or using the switch if flammable or explosive gases are present. Always unplug before disassembling.

Guidelines for Handling Hazardous Materials

This vacuum pump should not be used for flammable, explosive, poisonous gases, or gases that corrode metals. Do not pump gas containing dust or moisture. If handling hazardous materials, use proper personal protective equipment and follow all safety and disposal guidelines.

Getting Started

Key Features of the Pump

• Anti-flow design: Prevents oil backflow, protecting containers and hoses from contamination.
• Integrated body structure: Features an integral cylinder block for achieving limiting vacuum and enhancing durability.
• Integral handle: Designed for a firm and comfortable grip, with a high-pressure rubber and metal insert.
• Large starting torque: Ensures normal starting even in low temperatures (5°C) and low voltage (180V), making it reliable in various conditions.

Specifications

Package Contents

• 3.5 CFM vacuum pump x 1
• 250ml oil bottle x 1
• User manual x 1

Pump Diagram and Components

The vacuum pump features the following components:

• Gas Inlet
• Oil/Gas Separator
• Oil Levelline
• Oil Plug
• Tank
• Base
• Handle
• Power Switch
• Electrical Box
• Vane Shell
• Motor
• Nameplate

Exploded Diagram Component List

Steps for Setting Up the Vacuum Pump

1. Before use, remove the oil filling port/oil gas separator and fill with the recommended vacuum pump oil. Check the oil level to ensure it is not lower than the oil-level line. Do not run the pump with a low oil level.
2. Connect the container to be pumped to the gas inlet using a short, sealed hose that is free of dust, dirt, and heavy condensation. Check for leaks before operating.
3. If your vacuum pump comes with an exhaust cap, remove it.
4. Plug in the power supply and turn on the switch.
5. After use, unplug the vacuum pump, remove the connecting hoses, and cover the exhaust cap (if present) to prevent oil spills. Also, cover the oil plug to keep the oil clean and prevent dirt entry.

Installation and Maintenance of Vacuum Pump

Installation

To ensure proper functioning, follow these installation guidelines:

• Position the pump horizontally in a dry, ventilated area free of dust and other contaminants.
• Maintain a clearance of at least 10cm (4 inches) around the pump for proper airflow.
• For permanent mounting, remove the rubber pads from the base and use the existing threaded holes with ST4.2 screws.
• When permanently mounting, ensure proper clearances, especially at the air intake end of the vane shell.
• If a special electromagnetic valve is needed, it can be installed on the gas inlet.

Connecting the Vacuum Pump to the System Being Evacuated

Follow these steps to effectively control vacuum pressure and safely connect the pump:

• Identify the gas inlet on the vacuum pump and the gas outlet on the system being evacuated.
• Use a short, sealed hose (free of dust, dirt, and heavy condensation) to connect the gas inlet on the pump to the gas outlet on the system.
• Check for any leaks in the connection before starting the pump.

Maintenance

Proper maintenance ensures optimal performance. Follow these guidelines:

• Keep the pump clean and free from foreign matter.
• Keep the oil filled to the oil level; never run the pump without oil.
• Keep the oil clean. If it becomes dirty, muddy, or contaminated with water or volatile substances, it will affect performance, and the oil should be replaced. To replace oil: start the pump, run for ~30 minutes to thin the oil, stop, drain oil from the drain plug. Open the gas inlet and run the pump for 1-2 minutes while adding a small quantity of clean oil to the gas inlet to flush residual oil. After ensuring the pump is clean, replace the drain plug and fill with clean pump oil to the oil level.
• To store the pump when not in use for long periods, cover the oil cap and exhaust cap (if applicable) and store in a dry place.
• Repair of the pump should only be done by a qualified service technician.

Troubleshooting Guide