The operator plays an important role in ensuring that the harvester is measuring accurately.
The Skogforsk guide helps operators understand measurement better and ensure that the harvester head is measuring accurately. It is the manual control measurement of stems that is the result against which the machine is adjusted. The correct use of the calliper and meticulous measurement of length during checks and calibration are vital if the harvester is to measure really well.
Skogforsks aim with this guide is to provide an overview of how the measurement system on the harvester works, and to show how the operator can work systematically with checks and adjustment of the measurement system. The guide is divided into the following sections:
- Foreword
- Harvester measurement of length and diameter: This covers how the harvester measurement system works and what affects harvester measurement.
- Machine setting: A machine with the correct settings not only improves measurement – it is also smoother in operation and there is less need for the head to reverse and restart.
- How well is the harvester measuring? This includes how well the harvester is measuring and is described with performance indicators (key figures) calculated from the manual control measurements.
- Manual control measurement: By continually monitoring the harvester’s measurement, you can detect and correct measurement errors before large log volumes have passed the harvester head. Included in this section is the procedure for quality assurance, preparations for control measurement, control measurement of log length, control measurement of stem diameter, measurement results and checks of measurement equipment
- Troubleshooting: If the measurements are deviating from what is normal for your harvester, check the measurements of a few more stems.
- Calibration of the harvester´s measurement system: The measurement system is calibrated when necessary, to ensure that the sensors’ signals correspond to the actual measurement on the stem.
- Glossary