Filter
Top Products
EPRI Proprietary Licensed Material
RB 211 Maintenance Scope
B-8
• Inspect VIGV’s, crack test, measure inner and outer journals. Inspect threads.
• Measure and inspect inner and outer bushes.
• Embody the following Repair Notes (RN):
− RN 5002 – Wear of VIGV Trunnions and associated parts
− RN 5035 – Acceptance Standard for VIGV Vespel Bushes
• Inspect IGV arm assembly, re-protect if necessary.
• Inspect air intake casing assembly, locally crack test, repaint if necessary.
• Renew metco on all static seals (MOD 830, MOD 1044).
• Inspect all remaining parts.
• Overhaul Master & Follower (2) Inlet Guide Vane Rams.
• Inspect and electrical check RPM indicator system
It is recommended to incorporate MODs 1104, 1054, 1081, 1044, 1164, if not already
incorporated. These Mod’s, and all other modifications, should be discussed and agreed to by
the customer.
02 Module:
Compressor Casing and Vanes IP (Section 1665)
• Detail strip the module – wash NDT, inspect and record/embody the following Overhaul
Information Alert (OIA):
• OIA 014 – Inspection of IP Vanes Stages 5 & 6.
• Main Casing: Inspect general condition and report – repaint casing and incorporate Mod 734.
• Inspect shrouds Stage 1 through 6, overhaul process.
• Inspect liners for serviceability, replace if necessary.
• Inspect and overhaul process Stage 1 through 4 vanes.
• Overhaul process Stage 5 and 6; incorporate Mod 1159 (Stage 6) or Mod 1205 (Stage 5).
Incorporate MODs 734, 1101, 1036 if applicable.
It is recommended to incorporate the latest mod standard on the IP Stage 5 and 6 Stator Vane
Assemblies.
Latest MOD Standard – Stage 5 to MOD 1205
Stage 6 to MOD 1559
Customer should be advised as to what MODs can be incorporated.
• Rebuild the casings as per standard procedure.