Pro-Cut PFM 9.0 - Manual (Page 22)

PG / Ø22 800.543.6618
MACHINING ROTORS
You must adjust for lateral run-out to eliminate wobble (run-out) from the machine before cutting. This procedure en-
sures the resulting machined rotor will have minimal run-out after cutting. The 9.0 DRO Rotor Matching System has
been calibrated to reduce run-out to less than 0.001” (0.025mm) or less as measured on the rotor face.
COMPENSATE FOR Run-out
STEP 3: ADJUST FOR LATERAL Run-out (1 Minute)
This procedure will usually take between 10 to 90 seconds. Total adjustment time depends on a number of factors in-
cluding initial run-out and the resistance in the hub. Average adjustment time is less than 30 seconds, but may take up
to 120 seconds depending on vehicle set-up. When the machine is done adjusting, green lights and a displayed lateral
run-out value on the digital display will give feedback on the compensated status of the lathe.
When the machine is done adjusting, a displayed value on the DRO will give feedback on the status of the lathe. To make
the DRO easier to read at a glance, we removed leading zeros and set the output to show whole thousandths to the left of
the decimal point and tenths of a thousandth to the right of the decimal point. For example, a measurement of 0.0015”
/ 38 microns will be displayed on the DRO as 1.5 / 38 microns, or one and a half thousandths. Green lights for “READY
TO CUT” and “OPTIMUM” will also be illuminated as a backup to the DRO.
Detail of the computer box.
The 9.0 DRO Rotor Matching System compensates for run-out automatically. With the machine mounted securely
to the adapter and all potential interfering items clear of the rotating assemblies, press the motor on switch. With
the machine running smoothly, wait approximately 8 seconds, then press and hold the start button on the DRO
computer board for 2 seconds. The lateral movement of the lathe as measured at a 12” / 304mm diameter (6”
/152mm from the center of hub) will be displayed on the Digital Read Out (DRO) screen. A clicking sound will be
heard throughout the adjustment process, which is the adjustment solenoid changing the angle (at the adjustment
flange face) until run-out is reduced to within vehicle specification or less.