Vytran PTR-200-PRL, Operator'S Manual

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Maintenance
Vytran LLC: PTR-200-PRL Polyimide Recoater Operator’s Manual Version 1.2 24
the die does have an accumulation of recoat material stuck to it, allow the cleaning solution time (60-90
seconds) to soften and lift any material. After cleaning the die gently blow clean (canned) air across the
die to thin out the NMP.
CAUTION: When cleaning the die be cautious not to contact or damage the heaters.
Note: The mating surfaces of the die are precision machined. Use only a soft cotton tipped applicator to
clean the die. Do not rub any hard objects across the surface of the die as this could scratch or
chip the edges of the die channel and degrade the quality of the recoat.
5.4 Load Cell Calibration
The load cell calibration should be checked every twelve (12) months to ensure that accurate recoat and
proof test tension is applied to the fiber. This task must be performed by a Vytran certified technician.
5.5 Flush Recoat System
The recoat injection system should be flushed clean every 1 month as part of the recoat material
replacement procedure. Before flushing the system, make sure to have cotton tipped applicators and
cleaning solution (NMP) available prior to proceeding. To flush the system:
1. Remove the internal recoat bottle and clean all exposed tubing and fittings with NMP.
2. Install a bottle filled 1/4 full with NMP on the pump.
3. Run 5 purge cycles.
4. Remove the bottle, dispose of contaminated NMP. Refill ¼ full with clean NMP and reinstall.
5. Run 5 more purge cycles.
6. Run several inject 100 sequences until NMP runs clear from the die inject port.
Note: Make sure to collect material as it comes out of the die inject port. Do not allow material to
run between the left and right die.
7. Remove the bottle of NMP from the pump.
8. Run several more inject 100 sequences until no more NMP exits the die injection port.
9. Run one purge cycle. Make sure to collect any NMP that comes out of the green purge tube at
the top of the bottle fitting.
10. Clean all bottle tubing and fittings with NMP.
11. Install an empty bottle for storage, or a new bottle ¾ filled with fresh recoat material for use. If
installing fresh material, proceed to 3.1 Priming the Injection System.
5.6 Purge Recoat System
The purge cycle is a process of emptying the recoat material of the Automatic Injector back into the
recoat material bottle and refilling the pump with fresh recoat material drawn from the bottom of the bottle.
Running 5 purge cycles is sufficient to entirely fill the pump with fresh recoat material.
If the system has not been used for an extended period (over 1 week), it is recommended that a single
purge cycle be run to fill the pump with fresh material.