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Hot Gas Path Inspection — Reassembly Procedures
Operation 4 — How to Install Upper Half First Stage Nozzle (With Support Pad and Retainer)
1. Check that the support pad groove in the first stage nozzle support ring is clean and free from burrs
on the tongue or in the groove. See Figure HGP-R.5.
Note: The upper half first stage nozzle assembly weighs approximately 380
pounds.
2. Rig and lift the upper half first stage nozzle assembly (ends pointing down) and carefully lower
it onto the upper half support ring and lower half first stage nozzle.
3. Install and tighten the horizontal joint bolts.
Operation 4 — How to Install Upper Half First Stage Nozzle (With Tangential Support Pin)
1. Check to insure that the groove in the first-stage nozzle support ring is clean and that there are
no burrs on the tongue or in the groove prior to installing the upper half first-stage nozzle. See
Figure HGP-R.5.
2. Rig and lift the upper half first-stage nozzle assembly (ends pointing down) and lower it onto the
upper half support ring.
3. Apply a light coating of Fel Pro C-102 anti-seize compound to the tangential support pins and
install the pins into the support ring and first-stage nozzle support lugs.
4. Assemble the support pin retainer plate, coat the retainer plate bolt with anti-seize compound,
install and tighten the bolt. Bend the locking tabs on the retainer plate to keep the bolt from rotat-
ing. See Figure HGP-R.2.
5. Install and tighten the first-stage nozzle horizontal joint bolts.
Operation 5 — How to Install Upper Half Second and Third Stage Nozzle Segments and Radial
Retaining Pins
Note: This operation assumes that the diaphragm and nozzle segments are
being installed as one assembly.
1. Thoroughly clean the hook fits. Buffing the nozzle hook fits may be helpful prior to applying
anti-seize compound. Apply a light coating of Fel Pro C-102 anti-seize compound to the hook
fits.
2. Install the nozzle forward and aft seals to the nozzle segment in accordance with the Nozzle Ar-
rangement Drawings in the Parts Lists and Drawings Volume of the Service Manual.
HGP-R-10
CAUTION
Use of anti-seize compound must be restricted to a thin
film such that the compound is not forced into the inner
gas path. Should this occur, it must be carefully removed.
Inspection and Maintenance — GEK 107048
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