Eschmann T20-a : T20-s
Eschmann · Model T20-a : T20-s
Full length radio translucent top with built-in x-ray cassette tunnel accessible from either end. 720-1120mm height range. 450kg maximum patient weight. Powered 250mm table top traverse. 600mm wide table top (across sidebars). Corded handset controlling Trendelenburg, reverse Trendelenburg, lateral tilt, flexion/extension, traverse, auto level, and height, Offset table-top break and offset slimline column for superior imaging and access. Column covers in stainless steel. Battery powered (mains rechargable). Foot pedals on base to control brakes, wheels and castors for stability, straight-line steering and 360 degree mobility. Head and leg sections are removable and interchangeable, with an auto-locking mechanism. Covers to the top and base are made of scratch resistant and colourful acrylic capped ABS mouldings to minimise potential sites for cross contamination and provide a wash down surface to the tabletop. Simple mattress fixings, no velcro. Special one-piece mattress covering break position (long and short trunk sections) to combat fluid ingress and to provide superior patient support.
Key tips
- ·Never defeat or bypass a return-electrode monitoring (REM) alarm to finish a case - it's a direct burn risk.
- ·Verify OR table battery backup - a table that loses power mid-procedure is a real, documented incident type.
- ·Track surgical light lamp-hours rather than waiting for failure - a sudden failure mid-case is avoidable.
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.
A powered function will not run
HighSymptoms: Height, tilt, Trendelenburg, back or leg section does not respond to the hand control / pendant.
Root cause: Hand control fault, an electro-hydraulic actuator, a control-board fault, or a low battery (mobile column).
Section drifts or will not hold
MediumSymptoms: Table settles under load after positioning.
Root cause: Hydraulic valve internal leak or an actuator backdrive.
Battery will not hold charge (mobile column)
MediumSymptoms: Short run time, table dies mid-procedure, battery alarm.
Root cause: Aged battery pack or a charger fault.
Hand control / pendant / cable fault
MediumSymptoms: Intermittent or dead hand control.
Root cause: Worn hand control or a damaged cable.
Table-top segment / rail / pad fault
LowSymptoms: Segments loose, accessory rails will not clamp, pads torn, radiolucent top damaged.
Root cause: Worn segment latches, rail clamps, or upholstery.
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.
Electro-hydraulic actuator
Class Major service partRel. cost $$$R&R Difficult
Hydraulic control valve block
Class Major service partRel. cost $$$R&R Difficult
Battery pack (mobile column)
Class Periodic replacementRel. cost $$R&R Fairly easy
Hand control / pendant
Class Periodic replacementRel. cost $$R&R Fairly easy
Table-top segment pads / rail clamps
Class Major service partRel. cost $$R&R Fairly easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Electro-hydraulic actuator | Major service part | $$$ | Difficult |
| Hydraulic control valve block | Major service part | $$$ | Difficult |
| Battery pack (mobile column) | Periodic replacement | $$ | Fairly easy |
| Hand control / pendant | Periodic replacement | $$ | Fairly easy |
| Table-top segment pads / rail clamps | Major service part | $$ | Fairly 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.
- ·Pre-case functional check
- ·Electrosurgical return-electrode cable inspection
- ·Table hydraulic / mechanical inspection
- ·Annual electrical safety test and full PM
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: A powered movement will not run (height / tilt / Trendelenburg / back / leg)
- Confirm the table is on mains or the mobile-column battery is charged, and no lock-out is set.
- Operate the function and listen for the electro-hydraulic pump / actuator.
- Substitute a known-good hand control / pendant.
- Check the control cable and connectors for damage.
- Replace the actuator, the hydraulic valve or the control board as isolated, then load-test.
Symptom: A section drifts down / will not hold position under load
- Note how fast it settles and under what load.
- Check the hydraulic control valve for internal leak-by and the actuator for backdrive.
- Bleed and top up the hydraulic system per the manual.
- Rebuild or replace the leaking valve / actuator.
- Confirm the section holds at several positions under the rated load.
Symptom: Battery will not hold charge (mobile column)
- Charge fully and check the charger.
- Run a battery test if supported.
- Replace the battery pack.
- Confirm a full set of movements on battery after replacement.
- Inspect the charge socket and cable.
Symptom: Hand control / pendant intermittent or dead
- Flex the cable along its length and at both ends while operating.
- Inspect the connector for bent pins or moisture.
- Substitute a known-good pendant.
- Replace the pendant or its cable.
- Confirm every function from the replacement.
Technical Specs
- Height
- 720 mm to 1120 mm
- Length
- 2102 mm
- Tredelenburg
- 25 degrees
- Lateral Tilt
- 18 degrees
- Patient Weight Capacity
- 300 kg
- Width
- 600 mm
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Operating rooms
- Procedure rooms
- Interventional suites
Documents & Manuals
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