Tinius Olsen MP1200 Extrusion Plastometer Page 10-4
Operation Manual # 02002215
Run the WLD fully down and remove the weight and piston rod assembly if
they are in place. Press the ACCESSORIES key and the PURGE key. The
purge cylinder should extend fully down to within 1 inch (25.4 mm) of the top
of the WLD weight support plate on center. If the purge tool contacts the
platform, the purge cylinder-mounting bracket will need to be loosened and
adjusted up so that it is flush with the top of the lift tube. If the purge tool is
not centered on the platform, loosen the purge cylinder-mounting bracket and
rotate until it is centered. Press the PURGE key again to retract the purge
cylinder.
Note: If the extension speed is too slow or too fast, the bottom flow control valve has
a screw adjustment that can used to change the speed. If the retraction speed is too
slow or too fast, the top flow control valve has a screw adjustment that can used to
change the speed.
10.3.12Check the operation of the Cleaning Cylinder (if present) as follows:
Power up the MP1200. If the air supply is properly connected, both cylinders
should be retracted at this time if all the hoses were connected correctly.
Follow the on-screen instructions for positioning the WLD in the “HOME”
position. (NOTE: Pressing CANCEL will disable the WLD.) Press the
NAVIGATION key followed by the CONFIGURATION key. Then enter “835”
and press DONE to enter the Machine Settings mode. Verify that the Purge
and Clean settings are set to ON (light green highlighted). Press the DONE
key followed by the NAVIGATION key when finished.
Run the WLD fully up and remove the weight and piston rod assembly if they
are in place. Note that the tool end of the cleaning cylinder is free to rotate,
and should be facing squarely toward the front. Insert the ridged tip of the
extended cleaning tool assembly into the top of the bore, and then slide the
handle into the center of the cleaning cylinder tip as shown in drawing 5-6-
563-1. If the ridged tip of the extended cleaning tool does extend below the
top of the bore as shown in drawing 5-6-563-1, the cleaning cylinder
mounting bracket will need to be loosen and adjusted. If the tool end of the
cleaning cylinder is not centered in respect to the bore, loosen the purge
cylinder-mounting bracket and rotate until it is centered.
Press the ACCESSORIES key and the CLEAN key and the cleaning cylinder
should fully extend down and stop. Press the CLEAN key again and the
cleaning cylinder should fully retract.
Note: If the extension speed is too slow or too fast, the bottom flow control
valve has a screw adjustment that can used to change the speed. If the
retraction speed is too slow or too fast, the top flow control valve has a screw
adjustment that can used to change the speed.
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