Page 73 - Improving Machinery Reliability

Requirements Specification 45

~
REASSEMBLY PROCEDURES

FOR MAJOR H.P. STEAM TURBINES
MACHINE TAQ NO. El-201 Propane Rdrigera~ion
hrs

(35) l'he low pressure side ceaing bolts are tightened with a 3
homer or extension wrench until the specified torque values IbZ)
are reached. Exhaust casing connection bolting must be loose
before the horizontal joint bolts are tightened. Only then
can the attaching bolts be tightened.

(36) Inspection before assembling the governor-aide bearing. 2
After cleaning the upper bearing housing, the bearing liner 1bS)
la fitted, and plastigage placed on the bearing liner.
OAT€ FILE REFERENCE
5/9/80 MACHINERY RELIABILITY PROGRAM M-80.4-C2Ol

Figure 1-31. Reassembly procedures for major HP steam turbines.

Illustrated instructions of this type also serve as training material for personnel
involved in turnaround execution. A copy of the manual belongs on the compressor
deck for the duration of the machinery turnaround. Its conscientious use cannot help
but reduce the risk of oversights and delayed restarts of major machinery. This illus-
trated manual is also highly useful to planners whose detailed turnaround scheduling