A-14
Chadwick-Helmuth A Business Unit of Honeywell International, Inc.
Appendix A -
8520C-36 Signal Selector
z.
Key in
900
with numeric keys in
BALANCE FREQUENCY
field.
aa.
Key in
X2
as the times factor.
ab.
Press
ENTER
soft key.
ac.
Wait 10 seconds.
ad.
Press
START
key.
ae.
Verify that display indicates:
1800±2 RPM
0.8±0.08 IPS
af.
Press
STOP
key.
ag.
Press
SETUP
key.
ah.
Select
INPUT
field with arrow keys.
ai.
Key in
10
with numeric key for #A2 nacelle harness cable.
aj.
Press
ENTER
soft key.
ak.
Wait 10 seconds.
al.
Press
START
key.
am.
Verify that display indicates:
1800±2 RPM
0.8±0.08 IPS
an.
Press
STOP
key.
ao.
Set
CAM RATE (RPM)
switch on Calibrator 11A to 900.
ap.
Press
SETUP
key on 8500C/C+.
aq.
Key in
450
in
BALANCE FREQUENCY
field.
ar.
Key in
x2
as times factor.
as.
Press
ENTER
soft key.
at.
Wait 10 seconds.
au.
Press
START
key.
av.
Verify the display indicates:
900±1 RPM
0.4±0.04 IPS
aw.
Press
STOP
key.
ax.
Replace accelerometers with Velocimeters and connect nacelle harness cables
#2 AFT G/B
and
#3 ENG. ACC
as shown in Figure A-6.
