VBM Medical Tourniquet 5000
VBM Medical · Model Tourniquet 5000
Automatic change to manual system during failure of compressed air No battery needed Maintenance free Can be used at any time even without compressed air.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Cuff will not inflate
HighSymptoms: Cuff does not pressurise on command.
Root cause: Compressed-air supply low (or the manual backup in use), a stuck valve, or a pump fault.
Cuff will not hold pressure / leak detected
MediumSymptoms: System repeatedly tops up the cuff, leak alarm, set pressure not held.
Root cause: Cuff bladder or hose leak, or a loose connector.
Pressure inaccurate
HighSymptoms: Displayed pressure disagrees with a reference.
Root cause: Pressure transducer drift or a control-board calibration fault.
Cuff will not deflate
HighSymptoms: Cuff stays pressurised when deflation is commanded.
Root cause: Deflate valve stuck shut, or a valve-driver fault.
Automatic-to-manual changeover fault
MediumSymptoms: Loss of compressed air does not switch to the manual system.
Root cause: Changeover valve fault.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Internal pump / valve block
Class Major service partRel. cost $$$R&R Difficult
Inflate / deflate valve assembly
Class Major service partRel. cost $$R&R Difficult
Pressure transducer
Recalibrate after replacement.
Class Major service partRel. cost $$R&R Moderate
Tourniquet cuff and hose
Class Periodic replacementRel. cost $$R&R Easy
Inlet air filter
Class Periodic replacementRel. cost $R&R Fairly easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Internal pump / valve block | Major service part | $$$ | Difficult |
| Inflate / deflate valve assembly | Major service part | $$ | Difficult |
| Pressure transducer Recalibrate after replacement. | Major service part | $$ | Moderate |
| Tourniquet cuff and hose | Periodic replacement | $$ | Easy |
| Inlet air filter | Periodic replacement | $ | Fairly easy |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Cuff will not inflate
- Confirm the compressed-air supply pressure, or that the manual backup engages.
- Check the internal tubing is not pinched and connectors are mated.
- Check the deflate valve is not stuck open.
- Run the functional and calibration checks.
- Replace the pump or valve as isolated.
Symptom: Pressure reading suspect
- Power-cycle and let any self-check run.
- Tee a calibrated reference manometer to the cuff port.
- Compare at several set pressures.
- Recalibrate per the service manual or replace the transducer.
- Re-verify and record the date.