TM 55-2835-209-23
5-3 REPLACE MOTIONAL PICKUP TRANSDUCER (CONT)
4.
Clean motional pickup transducer (4)
using process 7, Chapter 8.
5.
Primary method for obtaining mo-
tional pickup transducer tip clear-
ance.
a.
b.
c.
Using micrometer, measure from
gearbox assembly surface to
crown of gear tooth of accessory
drive gear.
Record as dimension
A.
Using micrometer. measure trans-
ducer from tip of face to mount.
Record as dimension B.
Calculate required shim (1) by
using this formula:
B -
A + 0.009 inch =
Required
shim ±O.002
6.
Alternate method for obtaining mo-
tional pickup transducer tip clear-
ance.
a.
Using monopole shim checking
gage (T62), measure from gearbox
assembly surface to crown of
gear tooth of accessory drive
gear.
Record as dimension A.
b.
Using micrometer measure from
tip of face to mount. Record as
dimension B.
c.
Calculate required shims by
using this formula:
B - A + 0.009 inch = Required
shim ±O.002
5-8