TM 55-1520-240-23-5
6-217
VIBRATION CORRECTION PROCEDURE (AVIATION VIBRATION
ANALYZER) (Continued)
6-217
SYNCHRONIZING SHAFTING
16.
Lubricate shafting bearings at fitting (9) (Task
1-89).
17.
Inspect shafting mounts (10) at six places (Task
6-10). Replace bushings (11) if binding or
excessive play is noted (Tasks 6-13 thru 6-15).
18.
Check each of seven shafts (12) and six
adapter assemblies (13) for damage (Task 6-10).
Replace any damaged shaft (Tasks 6-2 thru 6-4
and 6-17 thru 6-19).
19.
Inspect each drive shaft support (14) for signs of
overheating. If overheating is indicated, replace
the support bearing (Tasks 6-12 and 6-16).
20.
Remove, lubricate, and reinstall forward
transmission adapter assembly (15) (Tasks 6-5
and 6-8).
21.
Remove, lubricate, and reinstall combining
transmission forward output shaft adapter (16)
(Tasks 6-6 and 6-9).
22.
Perform a ground run vibration check for
synchronizing shaft vibration. If check is
unsatisfactory, (vibration greater than 0.7 ips),
continue with step 23.
Change 1
6-711
