We perform onsite single and double plane balance adjustment by using the SKF CMXA 80 vibration analyzer device and balance kit.
A sample of the single plane balance adjustment procedure is as follows:
A weight that will eliminated the 16,8 ° 4,81 mm/sn vector, which is measured by reference, should be added and therefore, the vector angle and weight amount is calculated as follows: 360 – (67,98 -16,8) = 308,87 ° and 4,81*103,25 /(5,9621 ) = 83,5 gr. This value rests between the wings and no place is present for attaching the balance weight. The angles of the closest (1st elbow to the reference wing) 14th and 15th wings are consecutively 292.5° and 315°. When we separate the 83,5 gr weight into resultants according to the vectors of these wings, 23,3 gr is shared by the 14th wing and 292.5 °, whereas 61,49 gr is shared by 315 °.
Balance adjustment completes when we detach the trial weight and when these weights are added to the 14th and 15th wing connection bolts.
(For weight-related purposes, one of the 4pcs bolts on the 14th wing was dismounted and a 15mm longer bolt was tightened and the weight was thus increased by 23,3 gr. One of the 4pcs bolts on the 15th wing was dismounted and a 25mm longer bolt was tightened by 5pcs spring washers and the weight was thus increased by 61,49 gr).