Hofmann ATC 900 - Page 33

CTC-CEN Service Manual 07-13 Rev.E
33
 Disconnect the actuator M2 following par.5.5
 Proceed following the next steps.
 At the end adjust the actuator following par. 5.5.
 Perform the bead breaker arm calibration.
TO CHECK THE 3 TURNS MASTER POTENTIOMETER:
 Turn the machine off.
 Remove the electric cover.
 Position the upper bead breaker arm to the inward end of stroke.
 Turn the machine on.
MACHINE UNDER TENSION DANGER OF ELECTRIC SHOCK
 Take the multimeter and select it in VDC.
 Position its terminals on the potentiometer wires green and white.
 Move the arm until end of stroke: the multimeter must display a value from -4.6 to -0.121 on 5K potentiometer
and -9.6 to -0.2 on 10K one.