6 Maintenance of the Equipment
Provided the Garnet Digital gauge is handled with care and the operating instructions are adhered to,
only minimum maintenance is required.
Always remember that the Garnet digital gauge is an accurate measuring instrument and not a
hand tool. It is designed to operate in the railway environment but must at all times be handled
with care!!
Note that the Garnet must not be oiled as this may damage the instrument.
6.1 Routine Inspection and Maintenance
The Garnet should be cleaned after use and any grease that has accumulated should be
removed.
If the Garnet has been used in rain, it should be dried with a clean cloth prior to storage.
Ensure that the internal battery is regularly re-charged (See chapter 5) in order to prevent
long-term damage.
Regularly check for any signs of damage or misuse.
Regularly check for excessive play in the measuring paddles.
Regularly check that the paddle movement is smooth and free from glitches.
6.2 Calibration
Spot checks for calibration accuracy should be carried out as part of the routine maintenance. This is
achieved by taking measurements with the Garnet at specific points where the geometry is already
known. If a fault is suspected then the instrument must be returned immediately to your local
Geismar representative for full calibration or repair.
It is recommended that the Garnet be returned to your local Geismar representative for calibration
every 12 months or in accordance to your companies QA policy.
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