Pro-Cut PFM 9.2 DRO Technical Manual page 25

MACHINING ROTORS
Step 4: MAKE THE CUT
(4 Minutes) CONTINUED
6. Now that you have adjusted for depth, tighten the forward lock lever (over the tool arms). This lever must
be tight to minimize vibration. For safety, it is advised at this time that you turn the motor off. Place the
chip deflector/silencer around the rotor and over the cutting tips. Grooves in the chip deflector/silencer
will fit snugly over the cutting tip screw heads when installed correctly. This silencer is very important,
and it should be used on every rotor. There are currently three types of chip deflector/silencers. The first,
the 50-703 standard version, is used in most applications. The second, the 50-754, has double thick
silencer blocks and a lock clip to increase pressure on the rotor. The last type of silencer, the 50-744,
has thick blocks, a larger arc, and a stiffer spring and is designed for thicker vented rotors such as those
found on trucks 1/2 ton and larger.
7. Once cut depth is set, tool arms are locked down, and silencer is secure, you may turn the motor back on.
Press the feed engagement knob to engage the automatic feed. Provided that you previously set the shut-
off cam correctly, the lathe will shut off when the cut is complete. The cut will take two to four minutes
depending on the size of the rotor.
Turn the dials clockwise to advance the
cutting tip depth. Each line on the dial
indicates 0.0025"
The chip deflector rides over the cutting
arms as shown above. The chip deflec-
tor should be used every time. Guard
not shown for clarity.
Move the cutting head by turning the knob
shown above, clockwise for away from
the rotor, counter-clockwise for towards
the rotor.
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Pictured above is the
50-754, which has
double thick silencer
heads and a lock clip
to increase pressure on
the rotor.
PG / Ø25