TM 1-1520-238-23
6-106
6.19.
ENGINE NOSE GEARBOX OIL FILTER BOWL, STRAINER ELEMENT, AND DIFFERENTIAL
PRESSURE SWITCH (RETAINER, RINGED TYPE) REMOVAL/INSTALLATION – continued
6.19.3. Removal
a. Remove filter bowl (1) from gearbox housing
(2).
(1) Remove lockwire from bowl (1).
(2) Remove bowl (1) from housing (2). Use
crowfoot.
b. Remove strainer element (3) and packing (4)
from housing (2).
(1) Remove and discard packing (4).
(2) Remove and inspect element (3) (para 6.17).
(3) Discard element (3).
c. Remove pressure switch (5) from bowl (1).
(1) Remove spirolox (6) from switch (5). Use re-
taining ring pliers.
(2) Remove switch (5) from bowl (1).
(3) Remove switch (5), packing retainer (7), and
packing (8).
(4) Remove and discard packing retainer (7) and
packing (8).
6.19.4. Cleaning
a. Clean removed and attaching parts or sur-
faces (para 1.47).
6.19.5. Inspection
a. Check pressure switch and bowl for cracks.
None allowed.
b. Check pressure switch and bowl for corrosion
(para 1.49).
c. Check bowl for nicks, gouges, and burrs.
(1) Repair damage 0.030 INCH or less deep by
blending. Use depth gage.
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