12780 San Fernando Road, Sylmar, California 91342 | www.semcopackaging .com | Email: semcoinfo@PPG.com
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11. Mixer setting adjustments
Factory calibration is performed at 100psi. The factory settings are as follows:
1. Spindle rpm (the rotations of the dasher rod per minute): 135 +/- 10 rpm
2. Stroke cycles (up and down cycles, using water filled 6 oz.-8" cartridge kit): 20 +/- 2 cycles/min.
3. Toggle switch: activates at perpendicular to center panel (~15-30 degrees above when at rest)
4. Sensors and cartridge height settings – See pictures
Calibration – Spindle rpm
High and low RPM impacts the speed at which the base and catalyst are mixed. If too fast, elevated
temperatures may cause premature cure; too slow, insufficient mixing will cause delayed or incomplete
curing.
1. Use non-contact tachometer and place reflective sticker
on the spindle. Depending on tachometer model, it may
be necessary to dull the spindle sides with something
like masking tape before adding the reflective sticker
2. Close door and activate mixer with NO Semkit package
installed. The mixer will not cycle up/ down; however, the
spindle should spin at 135 +/- 10 rpm. If mixer is outside
that range, refer to Preventative maintenance (Section 9)
for cleaning, inspection, and maintenance of all
motor/belt/spindle components, then check again. If no
problems are found, but the spindle rpm remains outside
the desired range, then perform steps 3 through 5 below:
3. Open front panel.
4. The speed control is on the bottom of the muffler. Using a
short/small flathead screwdriver, twist the screw until the
required speed is obtained.
If after all preventative maintenance is performed the
required speed cannot be achieved, the motor is likely
damaged and will require specialized repair or complete
replacement.
5. Re-install front panel.
Use caution when activating the machine
with the front panel open. There are moving
parts, including the timing belt.
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