Chattanooga Hydrocollator M-4
Chattanooga · Model Hydrocollator M-4
High-quality stainless steel Thermostatically controlled temperature 3" (8 cm) swivel-type rubber casters for silent, friction-free movement Easy maintenance. Simple to fill and drain. No plumbing required: uses 110 current, 12.5 amp One-year warranty Full fiberglass insulation on mobile units to ensure minimum energy use and prevent heat loss Requires just 20" by 32" floor space Extra large tank Oversized drain Inside racks A second thermostat guards against low water level and overheating
Key tips
- ·Most "no output" stim-unit complaints are cable-side - check electrode/lead continuity before assuming a unit fault.
- ·Frame and strap wear on mechanical rehab equipment is a real fall/injury risk - don't defer it as cosmetic.
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.
Control panel / power supply fault
MediumSymptoms: Unresponsive controls, won't power on.
Root cause: PSU or control board aging.
Frame / mechanical wear
LowSymptoms: Loose joints, unstable frame.
Root cause: Fastener/bearing wear from repeated use.
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.
Power supply unit
Class Major service partRel. cost $$R&R Moderate
Control panel / PCB
Class Major service partRel. cost $$$R&R Difficult
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Power supply unit | Major service part | $$ | Moderate |
| Control panel / PCB | Major service part | $$$ | Difficult |
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.
- ·Frame and strap wear inspection
- ·Electrode lead continuity check
- ·Annual electrical safety test
Troubleshooting Approach
A structured starting point derived from the failure modes above. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Frame / mechanical wear
- Confirm the presentation - typically loose joints, unstable frame - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: fastener/bearing wear from repeated use.
- 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 control panel / PCB 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: Control panel / power supply fault
- Confirm the presentation - typically unresponsive controls, won't power on - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: pSU or control board aging.
- 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 power supply unit 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.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Physical therapy / rehab gym
- Outpatient rehab clinic
- Sports medicine
Documents & Manuals
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