Diagnostic Monitoring

DMST are able to offer clients Diagnostic Testing and Troubleshooting for the most challenging situations, utilising our specialised equipment and experience. We have achieve a 100% success rate on sorting out problems.

Condition Monitoring / Performance Testing

DMST Multi loggers enable accurate record keeping on many user defined parameters. This allows personnel to compare test results over an entire fleet or against previous results from the same machine or component as detailed in the following table.

Diagnostic Testing / Troubleshooting

Examples of previous successes include:

Hydraulic Excavator Swing Pressures

The system is able to measure & record pressures from any source. This job was trying to find a free swinging excavator hydraulic fault. The machine had no retardation in the swing intermittently and had even hit the rear of trucks on occasion.

Measuring Temperatures Of Brakes

Here are some brake temperatures monitored. Looking for spikes & imbalances in temperatures. Looking for operational issues which may be impacting on brake / component life

Drill Mast Raise Cylinders

Here are some graphs of pressures recorded on a blast hole drill. The drill was a relatively new model for the company, it had been at work for about 3 months and had pulled the piston heads off and failed the rods in 4 mast raise cylinders in this time.

The manufacturer was looking for the cause of the failures or to be able to rule out potential causes eg. Operational issue, pressure spikes generated from the hydraulic system or hardware / material failure.

Generator Monitoring

Here we were looking for a problem on the electrical generator powering the lights on an hydraulic excavator. The issue was with controlling the frequency output of the generator to within 50 hz + / - 1 hz. When this was not maintained, the lights would go out for 5 – 10 minutes each time. The problem ended up being in the hydraulic control valve in that it was capable of delivering to much flow and was over correcting itself whilst trying to maintain the frequency output.