_ FCO TU78-I031, LOAD problems when using EASYLOAD II cartridges




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 |  _ _ _ _ _ _ _                                                            |
 | | | | | | | | |                                  Level of       Page 1    |
 | |d|i|g|i|t|a|l|                                  Urgency        Of   3    |
 | |_|_|_|_|_|_|_|                FCO                [ I ]                   |
 |___________________________________________________________________________|
 | FIELD CHANGE ORDER                          Number: TU78-I031             |
 |___________________________________________________________________________|
 | Applicability:                                                            |
 |     Rework all TU78's experiencing LOAD problems when using               |
 |     "EASYLOAD II" Type Cartridges.                                        |
 |                                                                           |
 |___________________________________________________________________________|
 | Problem/Symptoms:                                                         |
 |                   None                                                    |
 |                                                                           |
 |___________________________________________________________________________|
 | Quick Check:                                                              |
 |     Presence of an external seal placed around the lower Cartridge        |
 |     Restraint Air Inlet Hole.                                             |
 |                                                                           |
 |___________________________________________________________________________|
 | Compatibility/Prerequisite FCO:                   | Est. Time to Install  |
 |                                  None             |   .3 Hours            |
 |___________________________________________________|_______________________|
 | Special Tools or Test Equipment:                                          |
 |                                  None                                     |
 |___________________________________________________________________________|
 |                            FCO Parts Information                          |
 |___________________________________________________________________________|
 | Order by     |                     Contents                               |
 | FCO Kit #    |____________________________________________________________|
 |              | Quantity     Part Number      Description                  |
 |              |                                                            |
 | EQ-01400-01  |     1        29-25614-00      Vendor FCO Kit               |
 |              |                                                            |
 | FA-04685-01  |     1                         FCO Document                 |
 |              |                                                            |
 |______________|____________________________________________________________|
 | EQ Kit Variation/System-Option Applic:  None                              |
 |___________________________________________________________________________|
 |                            Approvals                                      |
 |___________________________________________________________________________|
 | CSSE Engineer          |F.S.  Product Safety     | F.S.  Logistics        |
 | Bob Steere             | John Freudenberg        | Ed Duggan              |
 |________________________|_________________________|________________________|
 | Responsible CSSE Mgr   |F.S. Microfiche Libraries| Affected Population    |
 | Steve Dail             |                         |    6000                |
 |________________________|     PDP-11              |_______________________ |
 | ESD&P Micropublishing  |     LCG                 | Initial Kitting        |
 | Barbara Eriss          |                         |     100                |
 |________________________|     VAXnotes            |_______________________ |
 | Revision               |     STARS               | Hardcopy Publication   |
 |            A           |                         |     500                |
 |________________________|                         |________________________|
 | FCO Release Date       |                         | Parts Availability     |
 | 20 December 1985       |                         | February 1986          |
 +---------------------------------------------------------------------------+




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                          REWORK PROCEDURE
                               FOR
                            FCO TU78-I-0031


1.      Remove the Thread Block (Number 6). See Figure 1.

2.      Check if the Air Metering Orifice behind the Thread Block is
        red/brown in color.  Install one supplied (if necessary) using
        a small amount of Locktite, etc. (Kit contains a complete set of
        Orifices).

3.      Replace the Thread Block.

4.      Remove the protective backing from the seal supplied.




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     |d|i|g|i|t|a|l|              |           PAGE  3  OF  3
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5.      Place the seal around the air inlet hole in the lower
        Cartridge Restraint.  See Figure 2.

6.      Cartridge pressure measured at the lower Cartridge Restraint
        measuring point should be greater than 11 in. H20, with
        the thread pressure at 24 in H20.

7.      Load several tapes with Cartridges to test the LOAD function.

\^ TU78
\\TU78
\\STEERE
\\1985
\\DEC
\\FCO_DOCS