Replace Recoat Material; Replace And Align Mold Assembly - THORLABS vytran PTR406 User Manual

Fiber Recoaters with Linear Proof Testers
6. Make sure the recoat mold is open.
7. Run several inject 50 sequences until
acetone runs clear from the mold inject
port.
Note: Make sure to collect material as it
comes out of the inject port. Do not allow
any material to run under the mold plates.
8. Remove the bottle of acetone from the
pump.
9. Run several more inject 50 sequences
until no more acetone exits the injection
port.
10. Run one purge cycle. Make sure to collect
any acetone that comes out of the green
purge tube at the top of the bottle fitting
using a Kimwipe; the Kimwipe can be
disposed of with ordinary trash as the
acetone evaporates quickly.
11. Clean all bottle tubing and fittings with
acetone.
12. Prime the system
instructions in Chapter 6.

11.3.6. Replace Recoat Material

Recoat material has a finite shelf life and should be replaced every 6 months. To replace the recoat material, first
flush the system as outlined above. Once the system is flushed, fill a clean recoat bottle 3/4 full with fresh recoat
material and follow the procedures in Chapter 8.49.
Note: The one-ounce internal recoat bottle holds approximately 30,000 micro-liters when 3/4 full. The number of
recoats per fill and the approximate time before the material needs to be refilled can be determined based on the
volume of material per recoat (typically 2.5 micro-liter for a 280-micron mold) and the number of recoats per month.
For most applications, the material will need to be replaced before it runs out. Even if fresh material is added to the
internal bottle prior to the 6-month Preventive Maintenance (PM) schedule, the material should still be replaced
since mixing of the old and new materials occurs. Dispose of acrylate with solid chemical waste.

11.3.7. Replace and Align Mold Assembly

To remove the recoat assembly, remove the five flange screws at the base of the assembly. Lift the recoat mold
assembly straight up and unplug the ribbon cable. Keep track of the pin assembly, which may slide free of the
recoat mold assembly.
Before replacing the recoat mold assembly,
make sure that the base plate and bottom of the
mold assembly are cleaned of any dirt particles.
Replace the pin assembly by inserting the long
end into the recoat mold assembly. Verify that
the post moves up and down freely.
Plug in the ribbon cable connector to the LED
board on the underside of the mold. Lower the
assembly straight down and replace the five
flange screws. Lightly tighten two diagonal
screws and leave the other three loose. This will
allow for adjustment of the recoat assembly.
Open the recoat station top and the tops of the
fiber holding blocks. Clamp a length of coated
fiber between the holding blocks such that the
Rev A, September 14, 2020
by following the
Chapter 11: Maintenance
Recoat System
Replacing the Recoat Mold Assembly
Page 43