Zeroing CCS Fan Pressure Gauge

A51170
A51170-UN-18NOV02

A - Zero Adjusting Screw

With CCS fan shut off and CCS gauge in a vertical position, disconnect CCS fan monitor line to vent gauge to atmosphere. Use the zero adjusting screw (A) to set the gauge pointer exactly on zero mark. Connect monitor line.

OUO1074,00014B4-19-20030721