BECKER Vacuum Pump Maintenance and Troubleshooting (BCC Service): Structure Overview, Filter Cleaning & Replacement, Vane Replacement, and Troubleshooting (including common influencing factors). 1. BECKER Vacuum Pump Structure Overview: Motor, exhaust chamber, cooling system, vacuum inlet, cooling fan, inlet filter, exhaust port, and air intake. Vacuum Pump Structure Diagram: Heat dissipation, cooling air outlet, and air intake during operation.2. Safety Precautions for Cleaning and Replacing Vacuum Pump Filter Elements: 1) Wear appropriate PPE and gloves; 2) Shut off and lock out energy sources; 3) Prevent burns from the hot pump body; 4) Prevent hand injuries from sharp objects; 5) Wear a mask. Cleaning Steps for Intake Filter Element: The standard cleaning interval is every 200 hours. 1) Remove the nuts securing the filter housing; 2) Remove the filter element and clean it with an air gun (determine the replacement interval based on the element's actual condition); 3) Clean the inner cavity with a vacuum cleaner. Cleaning Negative Pressure Cavity Inlet Filter Element: Clean the negative pressure cavity inlet filter element every 200 hours.Cleaning the negative pressure chamber inlet filter element: 1. Remove the nut securing the filter housing. 2. Remove the filter element and clean it with an air gun (determine the replacement interval based on the element's actual condition). 3. Clean the inner chamber with a vacuum cleaner. Filter element spare part numbers: 1. Type 1: D65mm, H117mm (Part No. 14309297); 2. Type 2: D217mm, H121.5mm (Part No. 14309006). Vacuum pump vane replacement: Inspect vane thickness, height, and length every 3,000 hours; dimensions must not fall below standard specifications. Vane replacement steps: 1. Open the protective cover at the front of the unit.2. Loosen the 8 screws on the front cover; use 2 of the screws in the designated threaded holes to assist in removing the cover.
3. Remove the blades and clean the interior thoroughly.
4. Open both sides (at the filter element area), check for any remaining debris, and clean thoroughly.
5. Install the new blades.When inspecting vacuum pump vanes, first measure the thickness using a vernier caliper; the standard specifications for the vanes currently in use are 5 mm (thickness), 65 mm (height), and 355 mm (length). Assess the degree of wear based on the measured thickness.
Regarding the installation of new vanes (Part No. 14309003), please note the following: 1. Ensure the orientation is correct (refer to the attached diagram). 2. The vanes and the end faces of the rotor shaft must be free of oil residue; any oil contamination will impede the free movement of the vanes, potentially causing them to fracture during operation.3. After inserting the vanes, you should be able to rotate the shaft by hand and observe the vanes extending and retracting freely.
4. Lightly fasten the front end cover with two screws and gently rotate the shaft to check for smooth operation (※if the vanes are not positioned correctly, forcibly tightening the screws can damage the vanes). 5. Once smooth operation is confirmed, fully tighten all screws.
Check the clearance between the end face and the rotor side (the gap should be approximately 0.05–0.1 mm); clean the shaft, install the end cover, and use an air gun to clean the cooling fins.Regarding bearing lubrication: apply grease to the bearings after every 3,000 hours of vacuum pump operation via the two lubrication ports. Troubleshooting vacuum pump faults and key factors affecting the SAM feeding system: Abnormal temperature conditions—specifically high temperatures—typically manifest on the discharge chamber side. A spring-loaded pressure control mechanism is located inside the intake pipe; loosening this spring reduces the maximum achievable vacuum level. Similarly, the exhaust pipe contains a spring-loaded pressure control mechanism; loosening this spring lowers the operating current but increases noise levels. Faults and causes include: failure to meet required vacuum levels (due to leaks in the vessel or connecting lines, damaged pump vanes causing leaks, or clogged filter elements); abnormal sounds (due to bearing fatigue failure, changes in rotor-to-vane clearance, coupling fatigue failure, or cooling fan damage); and issues related to the vacuum pump feed hopper, vacuum tank, storage hopper, and SAM feeding system.Issues include clogged filter elements and pipelines, leaks at connections, incorrect valve openings or SAM air-blast settings, butterfly valve seal failures, sensor damage, dust accumulation causing blockages, wear on vacuum pump filter elements and vanes, and insufficient negative pressure.
Malaysia
