TM 1-1520-238-23
6-565
6.136.
TAIL ROTOR GEARBOX BREATHER REMOVAL/INSTALLATION – continued
6.136.3. Removal
a. Remove breather (1) from tail rotor gearbox
housing (2).
(1) Remove and discard packing (3), if installed.
6.136.4. Cleaning
a. Wipe breather and housing with a clean rag.
6.136.5. Inspection
a. Check breather and housing for nicks,
gouges, and stripped or damaged threads
(para 6.132).
b. Check breather for dents, 0.040 INCH maxi-
mum before blending. Use depth gage.
c. Check breather for fractures or cracks. None
allowed.
6.136.6. Installation
NOTE
If packing was removed, do not reinstall
packing. Packing could cause leakage.
a. Install breather (1) on housing (2).
b. Torque breather (1) to 40 INCH-POUNDS. Use
torque wrench.
c. Inspect (QA).
d. Install access fairings R530 and R540 (para
2.2).
END OF TASK
M04-560-2
1
2
3
M04-560-3
2
1
