Combustion Inspection — Disassembly ProceduresInspection and Maintenance — GEK 107048
CI-D-1
I. Disassembly Procedures For MS-6001B DLN-1 Combustion Systems
Operation 1 — How to Prepare the Turbine Compartment Roof for Removal
1. Disconnect the blower(s) motor leads, piping flanges and tubing connections at the topside and
underside of the roof.
2. Break flanges on exhaust frame cooling piping and all tubing connections.
3. Disconnect VA14 valve electrical wiring and conduit (if applicable to unit).
4. Disconnect fire suppression piping and any other piping which may interfere with roof removal.
5. Unbolt the roof from the sidewall frames.
6. Check the topside and underside to ensure roof (with blowers attached) is mechanically free to
be lifted.
Operation 2 — How to Remove the Turbine Compartment Roof and Side Panels
1. Attach four eyebolts to the roof section threaded receptacles provided for lifting.
2. Rig the roof with blowers attached for lifting with a chainfall or come-along in the rigging.
3. Lift the roof off and set on suitable cribbing.
4. Remove turbine compartment side panels to gain access to turbine compartment. Store panels
and/or doors in an upright position in a protected area.
Note: To gain easier access to the turbine area to remove bolting and piping
it may be desirable to remove some of the side panel vertical support
beams.
Operation 3 — How to Remove the Cooling Water Lines From Flame Detectors
1. Identify and tag each cooling water line so it can be reassembled to the same combustor from
which it was removed. See Figure CI-D.2.
2. Prior to loosening and/or removal of the tube fittings, non-destructively matchmark the nut and
fitting body. This matchmark should be different from any other existing matchmark on these fit-
ting parts.
Note: On the new Swagelok fittings, a stop collar is incorporated between the
nut and the fitting body. Matchmarking is not required on fittings hav-
ing the stop collar. See Figure CI-D.6.
Operation 4 — How to Remove the Flame Detectors
1. Lock out power supply to primary and secondary flame detectors.
2. Disconnect wiring to flame detectors. See Figure CI-D.1.
To Next Page
Loading...
Need help?
General
