Title: Instructions manual - THGT fan.pdf
6.3 Routine checking of fan equipment should be based on specific working conditions. Special attention should be made to any unusual sounds, vibration or temperature. If any problems are detected the fan equipment should be stopped immediately and cause inspected. Frequent attention should be made to bearings, motors and flexible seals. Vibration sensing, or regular analysis of vibration levels, provides an early indication of potential wear, un-balance, or early warning of breakdown. Readings should be taken at bearing, 90° to shaft center line, on a clean flat secure surface. If access to motor is not possible (motor in airstream) then a suitable external location may be identified for comparison. The basic principle of condition monitoring is to monitor a suitable measurement, so that any upward trend can be detected and taken as an indication that a problem exists. Thus it is important to:- A. Identify initial installed vibration level. B. Select vibration measuring points. C. Determine the interval for