TM 1-1520-238-23
Change 3
11-935
11.216.
LINEAR VARIABLE DIFFERENTIAL TRANSDUCER (LVDT) ADJUSTMENT – continued
h. Check for null of less than 0.05 volt RMS at
corresponding servocylinder RAM LVDT con-
nector pins (para 11.217, Table 1).
(1) Record indication.
i. If voltage in step h. is less than 0.05 volt RMS,
go to step n.
j. Apply external primary hydraulic power (para
1.72).
WARNING
To prevent injury, maintenance per-
sonnel shall be warned before moving
controls. If injury occurs, seek medi-
cal aid.
k. Manually move push-pull rod (18) or (19) of
the corresponding servocylinder to obtain
null of less than 0.05 volt RMS. Use multimeter.
(1) Record new indication.
l. Remove external primary hydraulic power
(para 1.72).
m. If null of less than 0.05 volt RMS cannot be
obtained, adjust rod (18) or (19) rod end to
lowest DVM indication (null) less than 0.05
volt RMS (para 11.2).
n. Check for less than 0.150 volt RMS at corre-
sponding servocylinder LVDT connector pins
(para 11.217, Table 4).
o. If voltage is not present, replace servocylind-
er.
(1) To replace collective servocylinder, go to
paragraph(s) 7.41 and 7.42.
(2) To replace longitudinal servocylinder, go to
paragraph(s) 7.47 and 7.48.
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