DOC: 03-917946-02
DESC: Fan Balance Test
PAGE:
REV
2
PREPARED BY: Sax Makthepharack REVISED BY:
CONTROL: INDUSTRIAL ENGINEERING
REV. DATE:
SHOWN
-
11 - 22 - 00
Arden Yambao
2 of 1
CALIBRATION
1. Mount the 4.6 oz-in calibration weight to the motor shaft with the set screw closer to the end of the motor shaft. Use the
grooved end of the tool PN 03-917887-00 to position the weight and counter the torque of the hex wrench.
2. Connect a variac to the fan motor. Adjust the motor speed to 26.9 to 27.3 Hz.
3. Adjust the potentiometer located on the amplifier board below the motor so that the voltage reads 4.6 volts AC.