Laerdal LSU
Laerdal · Model LSU
• One-hand-grip design • Bemis Disposable Canister system • High efficiency filter kit • HEPA rated bacterial filter • Does not contain latex • Big vacuum regulator dial • LED display for use day or night • TEST - Device Diagnostics program • Children vacuum range area (marked in blue) on the control panel • No-tools-necessary field changeable battery • Rechargeable Battery, NiMH, 12 VDC 2 Ah • External Battery Charger • 12V DC Power-cord for connection to vehicle connection • Air Flow: >30 LPM • Noice level: 46 - 56 dBA (80 - 500 mmHg)
Key tips
- ·Always leak-test under load - a regulator that reads correctly at rest can still leak and fail in real use.
- ·Canister and tubing changes are an infection-control issue as much as a mechanical one.
Typical Failure Modes
Failure patterns typical of this equipment class - general BMET reference, not verified against this exact unit's own service history unless flagged. Severity is a category-level estimate.
Pump / diaphragm wear
MediumSymptoms: Low vacuum, slow recovery.
Root cause: Diaphragm/motor fatigue.
Canister / float valve fault
LowSymptoms: Leak, loss of vacuum.
Root cause: Cracked canister / stuck float.
Filter clog
LowSymptoms: Reduced flow, overheats.
Root cause: Inline filter saturated.
Serviceable Parts & Consumables
The parts a BMET typically services on this class of equipment. Service class and relative cost are general engineering estimates for the category, not figures from this unit's documentation. Part numbers appear only when pulled from this unit's own service manual. Always confirm intervals and pricing against the manufacturer.
Diaphragm pump kit
Most-replaced wear kit.
Class Periodic replacementRel. cost $$$R&R Moderate
Collection canister & float
Consumable.
Class ConsumableRel. cost $R&R Easy
Inline bacterial filter
Consumable.
Class ConsumableRel. cost $R&R Easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Diaphragm pump kit Most-replaced wear kit. | Periodic replacement | $$$ | Moderate |
| Collection canister & float Consumable. | Consumable | $ | Easy |
| Inline bacterial filter Consumable. | Consumable | $ | Easy |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Regulator calibration and leak check
- ·Canister / tubing replacement
- ·Annual full PM
Troubleshooting Approach
A structured starting point derived from the failure modes above. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Pump / diaphragm wear
- Confirm the presentation - typically low vacuum, slow recovery - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: diaphragm/motor fatigue.
- Isolate the affected subsystem using the manufacturer's functional check or self-test, where one is provided.
- If the fault is confirmed and not a field adjustment, service or replace the diaphragm pump kit per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
Symptom: Canister / float valve fault
- Confirm the presentation - typically leak, loss of vacuum - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: cracked canister / stuck float.
- Isolate the affected subsystem using the manufacturer's functional check or self-test, where one is provided.
- If the fault is confirmed and not a field adjustment, service or replace the collection canister & float per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
Technical Specs
- Height
- 33 cm
- Length
- 31.5 cm
- Weight
- 4 kg
- Width
- 16 cm
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Operating Room
- Emergency Department
- Patient floors (wall suction regulators)
- Central vacuum plant
Documents & Manuals
Troubleshoot this device with Bio
Describe a symptom or error code. Bio answers from this device's own documented error codes, failure modes, parts, and guides.
Ask Bio →