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Inspection and Maintenance — GEK 107048
I. Disassembly Procedures (Hot Gas Path Inspection)
For MS-6001B DLN-1 Equipped Machines
Operation 1 — Perform Combustion Inspection Disassembly Operations
Number 1 through Number 15
Note: Refer to Combustion Inspection section of this Service Manual for dis-
assembly procedures for the following operations.
1. Prepare turbine compartment roof for removal.
2. Remove turbine compartment roof and side panels.
3. Remove gas fuel lines (if applicable).
4. Remove steam injection lines (if applicable).
5. Remove water injection lines (if applicable).
6. Remove false start drain tubing and manifold header.
7. Remove fuel nozzles.
8. Remove flame detectors and spark plugs.
9. Remove 11th stage cooling and sealing air lines.
10. Unbolt and open up combustion outer casing covers.
11. Remove crossfire tube retainers, crossfire tubes, combustion liners and forward flow sleeves.
12. Remove the air extraction manifold from the upper half turbine casing. In addition to the extrac-
tion manifold, remove the upper half inlet deicing piping, if applicable, and the upper half exhaust
frame cooling piping. Discard all gaskets and cover all pipe openings. Identify the bolting for
reassembly.
13. Remove outer combustion casings.
Operation 2 — How to Remove Exhaust and Inlet Plenum Access Panels
1. On straight up exhaust configurations, unbolt the removable exhaust duct transition piece panel
on the forward side of the transition piece.
CAUTION
Before proceeding with a combustion inspection ensure
that the gas turbine electrical power is tagged-out; CO
system is deactivated, liquid fuel system is purged, deacti-
vated and/or the gas supply is blanked off. See the Stan-
dard Practices section, in this Service Manual.
Hot Gas Path Inspection — Disassembly Procedures
2
HGP-D-1
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