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Major Inspection — Reassembly Procedures
8. Tighten and torque all the horizontal joint bolting by starting at the mid point of the flange on both
sides. Then torque alternately forward and aft both sides.
9. Tighten and torque the vertical joint bolts starting at top centerline and alternately working to-
ward the horizontal joint.
10. Install the upper half bolts to the inner and outer diffuser upper half strut ends. Tighten and torque
the bolts.
Note: Refer to the Frame Assembly Exhaust (ML0706) drawing in the Parts
Lists and Drawings Volume Service Manual and weld the bolts and
nuts as called for on the outer diffuser bolts and the outer horizontal
joint nuts.
11. Install the left and right side horizontal joint insulating packs. Bend up one corner of all lockplates
to lock the bolts.
12. Install the upper half outer insulating pack on the aft upper vertical flange of the exhaust frame.
Bend up one corner of all lockplates to lock the bolts.
13. Reconnect all pressure and temperature instrumentation to the exhaust frame and the inside of
the inner barrel tunnel.
14. Using chainfall or comealong, rig to the rail beam and trolley hoist inside the exhaust transition
duct. Remove the bolting from the rail beam and slide the rail and trolley out of the transition duct
and rig to an overhead crane. Remove rail and hoist clear of the unit. Install all removed hardware,
handtight, for safe keeping.
Operation 11 — How to Remove Mechanical Support Jacks from Underneath Unit Casings
1. Remove the mechanical support jacks and dial indicators from underneath the unit casing flanges
and forward inlet bell mouth flange.
2. Remove any shim packs if used. Applicable to bases that have a transaxial "I" beam only.
3. Replace all base cutout floorplates and bolt in place.
4. Accumulate all jacks and dial indicators and return to storage.
Operation 12 — Take Final Rotor Positioning Checks
1. Refer to the Hot Gas Path Inspection section, disassembly operation 3 in this Service Manual,
for Rotor Positioning Checks procedures.
MI-R-8
CAUTION
Mechanical support jacks are not to be removed until all
upper half casing have been installed and bolted in place.
Inspection and Maintenance — GEK 107048
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