Shop Safety Best Practices

Marine dynamometer testing can be performed safely and efficiently when procedures are consistent. This guide outlines core safety practices for technicians and managers operating International Dyno systems, including pre-test preparation, live test controls, emergency response, and post-test shutdown.

1) Pre-Test Safety Controls

Clear the area of loose tools, cords, and non-essential personnel.
Verify floor is dry and free of slip hazards around the test station.
Confirm ventilation and exhaust extraction are active before startup.
Inspect hoses, couplers, and fittings for leaks, wear, or damage.
Confirm emergency stop access and fire extinguisher location.

2) PPE and Team Roles

Require eye protection and hearing protection during loaded runs.
Use fitted clothing and secure long hair near rotating equipment.
Assign a primary operator and a dedicated observer for each test.
Use standardized verbal callouts for run start, load step, and shutdown.
Do not allow untrained personnel to operate control points.

3) Safe Test-Run Procedure

Warm engine at low load and verify stable idle behavior.
Increase load in controlled increments, not abrupt steps.
Monitor RPM and PSI continuously for abnormal fluctuation.
Stop immediately if unusual vibration, noise, odor, or leakage appears.
Keep clear of rotating and hot components throughout the run.
Never leave an active loaded test unattended.

Stop-Test Triggers

Rapid PSI drop
Unstable RPM at fixed throttle
Hydraulic leak evidence
Severe vibration or coupling noise
Cooling-water interruption

4) Emergency Response

Shut down load and engine immediately on critical fault conditions.
Isolate ignition/fuel sources before inspection.
Contain fluid spills and apply spill response process quickly.
Document incident conditions before restarting operations.
Require supervisor sign-off before equipment is returned to service.

5) Post-Test Shutdown and Logging

Return system to safe idle and controlled shutdown sequence.
Inspect couplers, adapter, and hose connections after each run.
Log test date, engine info, adapter used, and any safety notes.
Flag recurring issues for preventive maintenance scheduling.
Store equipment and tools in designated locations after testing.

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