Campbell Scientific 27106T Gill Propeller Anemometer - Manual (Page 12)

27106T Gill Propeller Anemometer
6: Minimum (P74)
1: 1
Reps
2: 0 Value Only
3: 1 Loc [ WS_ms ]
7: Average (P71)^4771
1: 1
Reps
2: 1 Loc [ WS_ms ]
6. Sensor Maintenance
Given proper care, the Gill Propeller Anemometer should provide years of
service. Components are conservatively rated and require little maintenance.
The only parts likely to need replacement due to normal wear are the precision
ball bearings and the tach-generator. The replacement procedures are best
performed in a service facility and only by qualified technicians.
If service facilities are not available, return the instrument to the factory.
Before returning the sensor to the factory, customers must get a Returned
Materials Authorization (RMA) and must fill out a Declaration of Hazardous
Material and Decontamination form (for more information, refer to the
Warranty and Assistance Section at the beginning of this manual).
6.1 Flange Bearing Replacement
This replacement procedure needs to be done by a
qualified technician. If a qualified technician is not
available, return the sensor to Campbell Scientific and
have their qualified technicians replace the bearing. Refer
to the Warranty and Assistance page for more information. CAUTION
This replacement procedure is from RM Young Operation
manual (see Section 8). NOTE
If anemometer bearings become noisy or wind speed threshold increases above
an acceptable level, bearings may need replacement. Check bearing condition
using a Model 18310 Anemometer Bearing Torque Disk (available from RM
Young). If, after replacing bearings, the torque is still too high, check the tach-
generator.
Replace bearings as follows:
1. REMOVE OLD BEARINGS
a) Remove propeller from anemometer.
b) Unthread and separate shaft housing assembly from generator
housing.
8