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AZ1400-4-2 Assembly Instructions    [Un-assembled]

.9mm Buffered Fiber Un-assembled Instructions (11 Steps)

Specifications:

Type:  FC, Field Installable, FC Compatible

Mode:  Multimode

Ferrule Material:  All Zirconia ferrule

Curing Type:  Anaerobic/Epoxy Curable

[Parts list and diagram]

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Step 1

a.  Slide tapered end of .9mm boot onto .9mm buffered fiber.

b.  Slide silver locking piece onto .9mm buffered fiber with the knurled end first.

c.  Slide silver ring onto .9mm buffered fiber then onto silver locking piece.

d.  Slide spring onto .9mm buffered fiber.

 

Step 2

Measure and mark .800", on the .9mm buffer tube, from the end of the .9mm buffered fiber.  Strip the buffer tube from in front of the .9mm buffered fiber with No Nik strippers.

 

Step 3

This step is very important.  Clean stripped fiber with isopropyl alcohol soaked lint free cloth or a dry lint free cloth.  To clean fold cloth in half over fiber and gently squeeze on the fiber and pull it through the cloth.  This will clean the fiber of debris.

[Diagram]

 

Step 4 - Gluing the Fiber (Anaerobic and Epoxy)

Anaerobic Instructions

  1. Take Loctite RC680 adhesive with flat end needle and insert into the back end of the connector ferrule holder leaving Teflon guide tube in place. When it bottoms out, gently squeeze adhesive until a green dot forms in front of the ferrule. Then slowly withdraw adhesive (while maintaining pressure to allow some adhesive to coat the inside of the ferrule and ferrule shank.)

  2. Brush the stripped part of the fiber approx. .675” of the fiber from in front of the buffer (leaving 1/8”(.125”) from the front end of the stripped part of the fiber uncoated) and ¼” of the buffer with Loctite 7649 primer. Wait 15 seconds to allow primer to dry.

  3. Thread the fiber through the back end of the ferrule shank through the Teflon guide tube until it bottoms out.

  4. Proceed to Step 5.

Epoxy Instructions

  1. Mix Epo Tek 353ND epoxy (recommended).

  2. After mixing epoxy, fill a syringe with epoxy. Place needle tip over syringe and insert into back end of ferrule holder leaving Teflon guide tube in place. When needle tip bottoms out, inject epoxy until a yellow dot forms in front of the ferrule. Slowly withdraw syringe (while continuing to inject epoxy to allow some epoxy to coat the inside of the ferrule holder).

  3. Thread the fiber through the back end of the ferrule shank through the Teflon guide tube until it bottoms out.

  4. Place in fiber optic curing oven at 120° C or more for 3 minutes to accelerate and reduce chemical bond time. Remove from oven and allow to cool. (PVP curing oven recommended.)

  5. Proceed to Step 5

Step 5

After curing, carefully rotate spring and silver ring on silver locking piece up over ferrule shank until they are stopped by the ferrule shank.  Slide up .9mm boot onto knurled end of the silver locking piece to hold pieces together until final assembly. 

 

Step 6

Using cleaving tool, lightly score fiber at the point where the fiber comes out of the ferrule tip.  Then pull up on the fiber until it separates from the ferrule.

(Note: Do not snap off, pull directly off.)  (Caution: Cleaved fibers can be very sharp.)

(After cleaving, until the fiber stub is flush with the ferrule, if too much force is applied to the fiber it will easily chip and leave pits or toenails that go into the ferrule.)

 

Step 7

Take 15 micron lapping film and roll up and air polish using small circular motions not figure 8's and do not proceed to the next step until the air polish has only .005" fiber extended above the ferrule face.  Otherwise, there is a chance of snapping the fiber when proceeding to polish.  Blow off with air duster.

 

Note for Steps 8 and 9: 

Be sure to blow off connector and puck after each lapping sequence to prevent contamination scratching of core. 

 

Step 8

Use 5 micron lapping film on top of PVP lapping plate.  Insert connector into polishing puck and do 7 light laps and 8 regular figure 8 patterns wet or dry polishing.  Wet polishing is more forgiving at this stage than dry polishing. Once you master the sensitivity, you may want to just dry polish to reduce the necessity of blowing off ferrule and puck after every lapping stage.

[Diagram]

 

Step 9

Use 1 micron lapping film on top of PVP lapping plate.  Insert connector into polishing puck and do 7 light laps and 8 regular figure 8 patterns wet or dry polishing.

[Diagram]

 

Step 10

Then insert ferrule straight up into 100x Inspection Microscope and inspect fiber core.  Click on links below for acceptable and unacceptable polishing outcomes.

[Acceptable]  [Unacceptable]

 

Step 11

Final assembly:

a.  Slide bayonet over ferrule until it stops.

b.  Insert ferrule holder into bayonet and screw assembly together.

 

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       2008 Pine Valley Precision, Inc.
       Last modified: 02/27/08