TM 55-2840-254-23
1-88
1-88 CHECK FOR SEAL LEAKAGE (NO. 4 AND NO. 5 BEARING) (AVIM) (Continued)
i. Disconnect hose (19) from calibration block
fitting (20).
j. Connect hose (19) to calibration block fitting
(23).
k. Repeat steps b. Thru g. Compare readings re-
corded in steps c. and f, If either reading is
below 11 inches Hg., replace seal leakage
tester (T44) (18).
l. Disconnect hose (19) from calibration block
fitting (23).
m. Connect hose (19) to calibration block fitting
(24).
n. Repeat steps b. thru g. Compare readings re-
corded in steps c. and f. If either reading is
below 23 inches Hq., replace seal leakage
tester (T44) (18).
o. Disconnect hose (19).
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