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LEYBOLD RUVAC WSU 1001 - User Manual

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RUVAC WS/WSU
251/501/1001/2001
Roots pump with mineral oil,
synthetic oil or PFPE filling
Cat.-No.
101 83
117 22/32/42/52
117 23/33/43/53
117 27/37/47/57
117 28/38
118 33/43/53
150 44/95/96
167 007
917 48
155 000
Operating Instructions
GA 03.108/14.02
Vacuum Solutions
Application Support
Service
LEYBOLD VACUUM

Questions and Answers

  • M
    Melanie ChungAug 9, 2025
    What to do if the power consumption of LEYBOLD Water Pump motor is too high?
    • E
      Eric WilliamsAug 9, 2025
      If the motor's power consumption is too high on your LEYBOLD Water Pump, first refer to the troubleshooting steps for a pump that gets too hot. Also, ensure that the motor is connected to the correct voltage supply. If the issue persists, the motor stator or rotor might be malfunctioning, requiring Leybold service.
  • M
    Mary OrtizAug 13, 2025
    Why is my LEYBOLD Water Pump so noisy?
    • L
      lkingAug 13, 2025
      If the LEYBOLD Water Pump is too noisy, it could be due to several reasons. The clearance between the casing and impellers might be too small because of contamination or distortion of the pump; in this case, clean the pumping chamber. Alternatively, damaged bearings or gearing could be the cause, so ensure that the feet and connecting lines aren’t placing a strain on the pump. If the impellers strike the casing, the motor rotor runs out of true, or the centrifugal disc lubricator strikes the gear lid or oil tube, immediately switch off the pump and contact Leybold service. Lastly, if the oil pump is obstructed or malfunctioning, consult Leybold service.
  • L
    Lisa MillerAug 18, 2025
    How to troubleshoot low pumping speed on LEYBOLD Water Pump?
    • D
      Dr. Chad NelsonAug 18, 2025
      If the LEYBOLD Water Pump's pumping speed is too low, start by checking if the dirt trap in the intake flange is clogged and clean it if necessary. Also, verify that the motor is connected correctly. If the issue persists, the pump or pump system may have a leak, which you should find and seal. Additionally, if the valve of the pressure balance line does not close, clean or repair the valve. For other potential causes such as clearance of impellers is too large or bearing is malfunctioning, consult Leybold service.
  • S
    Stuart HodgesAug 22, 2025
    What to do if LEYBOLD Water Pump does not start?
    • J
      Joshua ObrienAug 22, 2025
      If the LEYBOLD Water Pump does not start, ensure that the motor is connected correctly. For other potential causes consult Leybold service. You may also need to replace the pressure switch, change the lubricant, or warm the lubricant and the pump.
  • A
    Amy WoodAug 26, 2025
    Why is my LEYBOLD Water Pump leaking lubricant?
    • T
      Tracy PayneAug 26, 2025
      If the LEYBOLD Water Pump loses lubricant, and a lubricant leak is visible, check if the oil-drain plug is not tight. If it isn't, drain the lubricant, firmly screw in the oil-drain plug with a new gasket, and fill in the correct quantity. If the oil-level glass is not tight, or there is an oil puddle under the motor due to a leaky can, contact Leybold service immediately and switch off the pump. If the gearbox is not tight, replace the O-ring of the gearbox cover. For other potential causes refer to fault 'Lubricant in the pumping chamber'.
  • J
    Jenny JamesAug 30, 2025
    What causes lubricant in the pumping chamber of my LEYBOLD Water Pump?
    • M
      matthew03Aug 30, 2025
      If there is lubricant in the pumping chamber of your LEYBOLD Water Pump, it could be due to several reasons. The lubricant level might be too high, so drain lubricant to reach the correct oil level. The lubricant may be leaking out of the system, so check the system for leaks. Ensure that the pump is installed on a flat horizontal surface. Also, check the proper fit of oil-fill and oil-drain plugs, and replace gaskets if necessary. If the pump has an internal leak, replace the O-ring of the gearbox cover. For malfunctioning impeller rings, consult Leybold service.
  • M
    micheal95Nov 4, 2025
    Why does my LEYBOLD Water Pump get too hot?
    • A
      Amber HernandezNov 4, 2025
      If the LEYBOLD Water Pump gets too hot, it may be due to several reasons. The ambient temperature might be too high, or the cooling air supply could be restricted; in this case, install the pump at a more suitable site or ensure sufficient cooling air. The pump may be working in the wrong pressure range, or the pressure differential may be too great, so check the pressure values of the vacuum system. High gas temperature can also cause overheating, so inspect the vacuum system. Contamination or distortion of the pump can reduce the clearance between the casing and impellers, requiring you to clean the pumping chamber. Excessive friction from contaminated bearings or lubricant can be a factor, so ensure the pump's feet and connecting lines aren’t strained. Finally, incorrect lubricant level...

Summary

Important Safety Considerations

1 Description

1.1 Design and Function

Details the design and operating principle of Roots pumps.

1.3 Technical Data

Provides detailed technical specifications and parameters for the RUVAC pumps.

3 Installation and Connection

3.2 Filling in of the Lubricants

Details the procedure for filling the pump with the correct type and amount of lubricant.

3.3 Electrical Connections

Guidance on making electrical connections safely and correctly.

4 Operation

4.1 Start-up

Procedures for safely starting the RUVAC WSU and RUVAC WS pumps.

5 Maintenance

5.1 Safety Information

General safety precautions to be followed during maintenance procedures.

5.2 Exchanging the Lubricant

Detailed steps for changing the pump's oil or PFPE lubricant.

6 Troubleshooting

LEYBOLD RUVAC WSU 1001 Specifications

General IconGeneral
BrandLEYBOLD
ModelRUVAC WSU 1001
CategoryWater Pump
LanguageEnglish

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