Page 70 - Machinery Component Maintenance

Maintenance Organization und Control for Multi-Plant Corporutions 55

hauled machine have bccn damaged by a few seconds of careless mainte-
nance activity.
The instrumentation associated with the machinery train should also be
checked and calibrated. Again, a list and adequate record keeping prac-
tices are a must. The list should include all set points and complete infor-
mation on any rebuilt instruments placed back in service. The engineer in

CHECK
SPECIFICATION .
v) - INITlALSl AMOUNT
(1 - .- ___ _.
H.P, END: DIAMETE9 4.125 IN.
a CRUSH
d -
W
m CLEARANCE
L.P. END: DIAMETER
2 CRUSH
a
3 CLEARANCE
4 NOTES: 1. USE MANDRIL TO CHECK CLEARANCE
2. CLEARANCES ARE DlAnETRAL
SPECIFICATIoNt I k::;: I INlTlALS
BEFORE
AXIAL CLEARANCE 0.01s TO a022 1
COLLAR RUN OUT
COLLAR FIT
OIL CONTROL RING am5 TO am9
CLEARANCE ._ -
TOTAL ROTOR FLOAT a4801N* .
x TO H.P. END 60%
% TO L.P. END 40%

SPEC FICATIO
LABYRINTHS
- - _--
LP INNER STEP 5.250 IN. am- roaotos

Figure 2-16. Critical dimension tabulation